Document
Table of Contents
Subject to Completion
Preliminary Prospectus Supplement dated November 29, 2016

The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not offers to sell nor do they seek offers to buy those securities in any jurisdiction where the offer or sale is not permitted.

Prospectus Supplement
(to Prospectus dated November 4, 2016)
$
archnewlogonowhitespace.jpg
Arch Capital Finance LLC
$ % Notes Due , 2026
$ % Notes Due , 2046
Fully and Unconditionally Guaranteed by
Arch Capital Group Ltd.
 
 
 
 
 
Arch Capital Finance LLC (the “issuer”) is offering $      million aggregate principal amount of     % senior notes due           , 2026 (“2026 notes”) and $      million aggregate principal amount of     % senior notes due           , 2046 (“2046 notes” and, together with the 2026 notes, the “notes”). The issuer will pay interest on the notes on            and            of each year, beginning on           , 2017. The issuer may redeem some or all of the notes at any time at the redemption prices described under the caption “Description of Notes and Note Guarantee—Optional Redemption.”
The issuer is a 100% owned subsidiary of Arch Capital Group Ltd. The notes will be senior unsecured obligations of the issuer and will rank equally with any of the issuer’s unsecured and unsubordinated indebtedness. The issuer does not intend to apply for listing of the notes on any national securities exchange or quotation on any automated quotation system. Arch Capital Group Ltd. will fully and unconditionally guarantee the notes on a senior unsecured basis (the “note guarantee”).
The issuer expects to use the net proceeds from this offering to finance the UGC Acquisition (as defined herein), to pay related costs and expenses, and for anticipated growth in our mortgage and other select businesses. See “Prospectus Supplement Summary—UGC Acquisition.” The closing of this offering is expected to occur prior to, and is not contingent on, the closing of the UGC Acquisition. The notes will be subject to a special mandatory redemption in the event that (i) Stock Purchase Agreement (as defined herein) for the UGC Acquisition is terminated on any date prior to August 31, 2017 or (ii) the UGC Acquisition is not consummated prior to August 31, 2017 (the earlier of any such date, a “Trigger Date”). If a Trigger Date occurs, the issuer will be required to redeem the notes at a redemption price equal to 101% of the aggregate principal amount of the notes, plus accrued and unpaid interest. See “Description of Notes and Note Guarantee—Special Mandatory Redemption.”
An investment in the notes involves risks. See “Risk Factors” beginning on page S-10 of this prospectus supplement to read about important factors you should consider before investing in the notes.
 
 
 
 
 
None of the Securities and Exchange Commission, the Bermuda Monetary Authority, the Registrar of Companies in Bermuda, or any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus are truthful or complete. Any representation to the contrary is a criminal offense.
 
 
 
 
 
 
Public offering price(1)
 
Underwriting discounts
 
Proceeds, before expenses, to issuer(1)
 
Per note
 
Total
 
Per note
 
Total
 
Per note
 
Total
2026 notes
%
 
$
 
%
 
$
 
%
 
$
2046 notes
%
 
$
 
%
 
$
 
%
 
$
Combined total
 
 
$
 
 
 
$
 
 
 
$
____________________
(1)
Plus accrued interest, if any, from , 2016, if settlement occurs after that date.
The underwriters expect to deliver the notes in book-entry form only through the facilities of The Depository Trust Company (“DTC”) against payment in New York, New York on or about , 2016.
Joint Book-Running Managers
Credit Suisse
Barclays
J.P. Morgan
Lloyds Securities
BofA Merrill Lynch
US Bancorp
Wells Fargo Securities
BMO Capital Markets
The date of this prospectus supplement is November , 2016.


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TABLE OF CONTENTS
 
Page
Prospectus Supplement

 
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Prospectus


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ABOUT THIS PROSPECTUS SUPPLEMENT
This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of this offering, including risk factors and material tax considerations, and also adds to and updates information contained in the accompanying prospectus and the documents incorporated by reference herein. The second part is the accompanying prospectus, which gives more general information, some of which may not apply to this offering. It is important for you to read and consider all information contained in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein in making your investment decision. To fully understand this offering, you should also read all of these documents, including our Annual Report on Form 10-K for the year ended December 31, 2015 (“2015 Form 10-K”) and in our quarterly report on Form 10-Q for the quarter ended September 30, 2016 (“2016 Third Quarter Form 10-Q”) and the other documents referred to under the caption “Where You Can Find Additional Information” in this prospectus supplement. To the extent there is a conflict between the information contained in this prospectus supplement, on the one hand, and the information contained in the accompanying prospectus, on the other hand, the information in this prospectus supplement shall control.
You should rely only on the information contained or incorporated by reference in this prospectus supplement and the accompanying prospectus. We have not, and the underwriters have not, authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not, and the underwriters are not, making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein and in the accompanying prospectus is accurate only as of their respective dates. Our business, financial condition, results of operations and prospects may have changed since those dates.
In this prospectus supplement and in the accompanying prospectus, except as otherwise noted or the context requires otherwise: (a) “ACGL” refers to Arch Capital Group Ltd., (b) “Arch Finance” or “issuer” refers to our 100% owned U.S. subsidiary, Arch Capital Finance LLC, (c) “we,” “us,” “our,” “Arch” and “the Company” refer to ACGL and its subsidiaries, (d) “Arch Re Bermuda” refers to our wholly owned Bermuda reinsurance subsidiary, Arch Reinsurance Ltd., (e) “Arch Re U.S.” refers to our wholly owned U.S. reinsurance subsidiary, Arch Reinsurance Company, (f) “Arch Insurance Europe” refers, collectively, to the U.K. insurance operations of Arch Insurance Company (Europe) Limited (“Arch Insurance Company Europe”) and the managing agent and syndicate at Lloyd’s of London, (g) “Arch Mortgage” refers to Arch Mortgage Insurance Designated Activity Company, (h) “Arch Insurance Canada” refers to our wholly owned Canadian insurance subsidiary, Arch Insurance Canada Ltd. and (i) “Arch MI U.S.” refers to our wholly owned U.S. mortgage insurance subsidiary, Arch Mortgage Insurance Company.
NOTICE TO PROSPECTIVE INVESTORS IN THE EUROPEAN ECONOMIC AREA
This prospectus supplement and the accompanying prospectus have been prepared on the basis that any offer of the notes in any member state of the European Economic Area that has implemented the Prospectus Directive (each, a “Relevant Member State”) will be made pursuant to an exemption under the Prospectus Directive, as implemented in that Relevant Member State, from the requirement to produce a prospectus for offers of the notes. Accordingly, any person making or intending to make any offer in that Relevant Member State of notes which are the subject of the offering contemplated by this prospectus supplement and the accompanying prospectus may only do so in circumstances in which no obligation arises for us or any of the underwriters to produce a prospectus pursuant to Article 3 of the Prospectus Directive in relation to such offer. Neither we nor the underwriters have authorized, nor do we or they authorize, the making of any offer of the notes in circumstances in which an obligation arises for us or the underwriters to publish a prospectus for such offer. “Prospectus Directive” means Directive 2003/71/EC (and amendments thereto, including Directive 1020/73/EU, to the extent implemented in the Relevant Member State), and includes any relevant implementing measure in the Relevant Member State.
NOTICE TO PROSPECTIVE INVESTORS IN THE UNITED KINGDOM
This prospectus supplement and the accompanying prospectus are being distributed to, and are directed at, only (1) persons who are outside the United Kingdom or (2) persons in the United Kingdom that are qualified investors within the meaning of Article 2(1)(e) of the Prospectus Directive and that are also (i) investment professionals falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the “Order”), or (ii) high net worth entities, and other persons to whom it may lawfully be communicated, falling within Article 49(2)(a) to (d) of the Order (all such persons together being referred to as “relevant persons”). This prospectus supplement and the accompanying prospectus and their contents should not be distributed, published or produced (in whole or in part) or disclosed by recipients

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to any other persons in the United Kingdom. Any person in the United Kingdom that is not a relevant person should not act or rely on this prospectus supplement and the accompanying prospectus or any of their contents.
This prospectus supplement and the accompanying prospectus have not been approved for the purposes of the UK Financial Services and Markets Act 2000 (“FSMA”) by a person authorized under FSMA. This prospectus supplement and the accompanying prospectus are being distributed and communicated to persons in the United Kingdom only in circumstances in which Section 21(1) of FSMA does not apply to us.
The notes are not being offered or sold to any person in the United Kingdom except in circumstances which will not result in an offer of securities to the public in the United Kingdom within the meaning of Part VI of FSMA.


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PROSPECTUS SUPPLEMENT SUMMARY
This summary is not complete and does not contain all the information you should consider. You should read this entire prospectus supplement and the accompanying prospectus carefully, including without limitation, the documents incorporated by reference in this prospectus supplement or the accompanying prospectus, the sections entitled “Risk Factors” in this prospectus supplement and in the accompanying prospectus and the section entitled “Cautionary Note Regarding Forward-Looking Statements.”
Arch Capital Group Ltd.
ACGL is a Bermuda exempted company limited by shares, with approximately $8.24 billion in capital at September 30, 2016 and, through operations in Bermuda, the United States, Europe and Canada, writes insurance and reinsurance on a worldwide basis. While we are positioned to provide a full range of property, casualty and mortgage insurance and reinsurance lines, we focus on writing specialty lines of insurance and reinsurance.
The worldwide insurance and reinsurance industry is highly competitive and has traditionally been subject to an underwriting cycle in which a hard market (high premium rates, restrictive underwriting standards, as well as terms and conditions, and underwriting gains) is eventually followed by a soft market (low premium rates, relaxed underwriting standards, as well as broader terms and conditions, and underwriting losses). Insurance market conditions may affect, among other things, the demand for our products, our ability to increase premium rates, the terms and conditions of the insurance policies we write, changes in the products offered by us or changes in our business strategy.
The financial results of the insurance and reinsurance industry are influenced by factors such as the frequency and/or severity of claims and losses, including natural disasters or other catastrophic events, variations in interest rates and financial markets, changes in the legal, regulatory and judicial environments, inflationary pressures and general economic conditions. These factors influence, among other things, the demand for insurance or reinsurance, the supply of which is generally related to the total capital of competitors in the market.
The broad market environment continues to be competitive in our business reflecting a continuation of softening in pricing and broadening pressures on terms and conditions. This has been true in both our insurance and reinsurance property casualty segments and has led us to continue to reduce writings in certain lines in 2016. With the continued low interest rate environment, additional increases are needed in many lines in order for us to achieve our return requirements. Our underwriting teams continue to execute a disciplined strategy by emphasizing small and medium-sized accounts over large accounts.
Arch MI U.S. continues to expand into the U.S. mortgage insurance marketplace. Our market share continues to increase, reflecting continued growth in the bank channel and the impact of RateStar, our risk-based pricing program. RateStar uses a combination of loan characteristics and other risk factors to determine premium rates for each loan. The pending acquisition of United Guaranty, described below, will expand the scale of Arch MI U.S. by combining United Guaranty’s position as the market leader in the private mortgage insurance industry with Arch MI U.S.’s financial strength and history of innovation, further diversifying our business profile, customer base and national presence.
Our objective is to achieve an average operating return on average equity of 15% or greater over the insurance cycle, as opposed to any one calendar year, which we believe to be an attractive return to our common shareholders given the risks we assume. We continue to look for opportunities to find acceptable books of business to underwrite without sacrificing underwriting discipline and continue to write a portion of our overall book in catastrophe-exposed business, which has the potential to increase the volatility of our operating results.
We monitor our capital adequacy on a regular basis and will seek to adjust our capital base (up or down) according to the needs of our business. The future capital requirements of our business will depend on many factors, including our ability to write new business successfully and to establish premium rates and reserves at levels sufficient to cover losses. In particular, we require (1) sufficient capital to maintain our financial strength ratings, as issued by several ratings agencies, at a level considered necessary by management to enable our key operating subsidiaries to compete; (2) sufficient capital to enable our underwriting subsidiaries to meet the capital adequacy tests performed by statutory agencies in the U.S. and other key markets; and (3) our non-U.S. operating companies are required to post letters of credit and other forms of collateral that are necessary for them to operate as they are “non-admitted” under U.S. state insurance regulations. Our ability to underwrite is

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largely dependent upon the quality of our claims paying and financial strength ratings as evaluated by independent rating agencies.
As part of our capital management program, we may seek to raise additional capital or may seek to return capital to our shareholders through share repurchases, cash dividends or other methods (or a combination of such methods). Any such determination will be at the discretion of our board of directors and will be dependent upon our profits, financial requirements and other factors, including legal restrictions, rating agency requirements and such other factors as our board of directors deems relevant.
Recent Developments
Offering of Depositary Shares Representing Series E Preferred Shares
On September 29, 2016, ACGL completed a $450 million underwritten public offering (the “Share Offering”) of 18.0 million depositary shares (the “Depositary Shares”), each of which represents a 1/1,000th interest in a 5.25% Non-Cumulative Preferred Share, Series E, and $25,000 liquidation preference per share (equivalent to $25 liquidation preference per Depositary Share) (the “Series E Preferred Shares”). Each Depositary Share, evidenced by a depositary receipt, entitles the holder, through the depositary, to a proportional fractional interest in all rights and preferences of the Series E Preferred Shares represented thereby (including any dividend, liquidation, redemption and voting rights). Except in specified circumstances relating to certain tax, regulatory or corporate events, the Series E Preferred Shares are not redeemable prior to September 29, 2021. The net proceeds from the Share Offering was approximately $434.9 million. We intend to use such net proceeds to fund a portion of the UGC Acquisition described below, to pay related costs and expenses and for general corporate purposes.
UGC Acquisition
On August 15, 2016, ACGL entered into a Stock Purchase Agreement (the “Stock Purchase Agreement”) with American International Group, Inc. (“AIG”) pursuant to which, upon the terms and subject to the conditions thereof, ACGL agreed to purchase from AIG all of the issued and outstanding shares of capital stock of United Guaranty Corporation, a North Carolina corporation (“UG Corp”), and AIG United Guaranty (Asia) Limited (“UG Asia” and, together with UG Corp, “United Guaranty” or “UGC”). The acquisition under the Stock Purchase Agreement is referred to herein as the “UGC Acquisition.”
As consideration in the UGC Acquisition, ACGL will pay to AIG aggregate consideration of approximately $3.24 billion (using the ACGL closing share price as of November 28, 2016), consisting of the following: (i) cash consideration of approximately $2.20 billion (the “Base Cash Consideration”); and (ii) a number of ACGL’s convertible non-voting common-equivalent preference shares (the “Series D Preferred Shares”) which are subject to a formula and a collar and an estimated fair value (using the ACGL closing share price as of November 28, 2016 of $81.62 per share) of approximately $1.04 billion, subject to adjustment and subject to certain restrictions on transfer within the first 18 months. In addition, the Stock Purchase Agreement entitled AIG to take dividends or other distributions from United Guaranty in an amount not to exceed $250 million between the signing of the Stock Purchase Agreement and the closing date of the UGC Acquisition (the “Target Dividend Amount”). United Guaranty paid the Target Dividend Amount of $250 million on November 15, 2016.
The Stock Purchase Agreement provides that if at the closing date of the UGC Acquisition, any required governmental approvals for the sale, delivery and purchase of UG Asia have not been obtained, then, at the closing (a) AIG will not deliver the UG Asia shares and (b) the Base Cash Consideration will be reduced by $40 million (the “UG Asia Consideration”). In that case, closing of the UG Asia sale will occur (including the payment of the UG Asia Consideration) when all required governmental approvals have been obtained, or on such date as AIG and ACGL may agree in writing, but not later than December 31, 2017, at which point UG Asia will be retained by AIG if the closing of the UG Asia sale has not occurred by such date.
The closing of the UGC Acquisition is targeted to occur late in the 2016 fourth quarter. The UGC Acquisition is subject to certain closing conditions, including, among others, (i) the receipt of certain approvals of regulatory authorities and government-sponsored entities and (ii) the execution of an excess of loss agreement between subsidiaries of AIG and United Guaranty. There is no financing condition for the UGC Acquisition. The closing of this offering is not contingent on the closing of the UGC Acquisition, and the UGC Acquisition is not contingent on the closing of this offering.

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In connection with the UGC Acquisition, ACGL entered into a bridge credit agreement (the “Bridge Credit Agreement”). The Bridge Credit Agreement provides for commitments by the lenders thereunder to provide, initially, up to $1.375 billion of term loans (the “Bridge Loans”) to fund a portion of the cash consideration under the Stock Purchase Agreement and to pay related fees and expenses. The commitments were reduced to $938.5 million upon closing of the Share Offering in September 2016. Commitments under the Bridge Credit Agreement will be reduced by an amount equal to the net cash proceeds of this offering of notes, and will be required to be reduced in the case of certain other equity issuances, debt incurrences and asset sales. If commitments under the Bridge Credit Agreement remain outstanding after the closing of this offering, we may pursue one or more additional equity issuances and/or debt incurrences, or use cash on hand, to fund the cash portion of the consideration in the UGC Acquisition in lieu of borrowing under the Bridge Credit Agreement.
Principal Executive Office
Our registered office is located at Clarendon House, 2 Church Street, Hamilton HM 11, Bermuda (telephone number: (441) 295-1422), and our principal executive offices are located at Waterloo House, Ground Floor, 100 Pitts Bay Road, Pembroke HM 08, Bermuda (telephone number: (441) 278-9250). We maintain a website at http://www.archcapgroup.com. The information contained on our website is not incorporated herein by reference and does not form a part of this prospectus supplement or the accompanying prospectus.
Arch Capital Finance LLC
Arch Capital Finance LLC, the issuer of the notes, is a Delaware limited liability company and a 100% owned subsidiary of ACGL. The issuer was recently formed for the sole purpose of issuing the notes in this offering. It has no business activities. Following the closing of this offering, the issuer will lend the net proceeds of this offering to Arch U.S. MI Holdings Inc., the direct parent company of Arch MI U.S. and purchaser of United Guaranty, and will receive an intercompany note in consideration thereof. This intercompany note will be the issuer’s sole asset. We are not providing separate financial statements of the issuer, as they would not be meaningful because the issuer has no assets or liabilities prior to this offering. The notes will be fully and unconditionally guaranteed by ACGL. The issuer’s principal office is located at 360 Hamilton Avenue, Suite 600, White Plains, NY 10601 (telephone number: (914) 872-3600).

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The Offering
This section provides a summary of the terms of the notes and the full and unconditional guarantee thereof by ACGL, which we refer to in this prospectus supplement as the “guarantees.” For a more complete description of the terms of the notes, you should also refer to the sections entitled “Description of Notes and Note Guarantee” in this prospectus supplement.
Issuer
Arch Capital Finance LLC
Guarantor
Arch Capital Group Ltd.
Notes offered
$            million aggregate principal amount of      % senior notes due 2026
 
$            million aggregate principal amount of      % senior notes due 2046
Guarantee
Payment of principal, premium, if any, interest on the notes and all other payment obligations of the issuer under the indenture will be fully and unconditionally guaranteed by ACGL.
Interest rates
The 2026 notes will bear interest at a rate of      % per annum. The 2046 notes will bear interest at a rate of      % per annum.
Maturity
   , 2026 for the 2026 notes.
 
     , 2046 for the 2046 notes.
Interest payment dates
Semi-annually on             and             of each year, beginning on            , 2017.
Ranking
The notes will be senior unsecured obligations of the issuer and will (i) rank equally in right of payment with all of the issuer’s unsecured and unsubordinated indebtedness, including without limitation other senior unsecured indebtedness issued under the base indenture, (ii) be effectively subordinated to all secured indebtedness of the issuer to the extent of the value of the assets securing such indebtedness and (iii) be structurally subordinated to all existing and future obligations (including insurance obligations) of the issuer’s subsidiaries. The issuer was recently formed for the purpose of issuing notes in this offering, and prior to the issuance of the notes in this offering, had no indebtedness.

The note guarantee will be a senior unsecured obligation of ACGL and will (i) rank equally in right of payment with all ACGL’s existing and future unsecured and unsubordinated indebtedness, including ACGL’s 7.35% senior notes due 2034 and ACGL’s guarantee of 5.144% Senior Notes due 2043 of Arch Capital Group (U.S.) Inc., (ii) be effectively subordinated to all ACGL’s existing and future secured indebtedness to the extent of the value of the assets securing such indebtedness and (iii) be structurally subordinated to the indebtedness and other obligations (including insurance obligations) of ACGL’s subsidiaries (other than the issuer).

As of September 30, 2016, ACGL had $400.0 million of indebtedness for borrowed money outstanding, all of which was unsecured, and ACGL’s other subsidiaries had a total of $798.1 million of indebtedness for borrowed money outstanding. In addition, as of September 30, 2016, ACGL’s subsidiaries had $541.9 million face amount of letters of credit outstanding, the reimbursement obligations with respect to which were secured by certain assets of these subsidiaries.
Optional redemption
If the 2026 notes are redeemed prior to           , 2026 (the date that is three months prior to the scheduled maturity date for the 2026 notes), or if the 2046 notes are redeemed prior to           , 2046 (the date that is six months prior to the scheduled maturity date for the 2046 notes), respectively, we may redeem all or a portion of the notes of the applicable series, at our option, at any time or from time to time at a “make-whole” redemption price, plus accrued and unpaid interest.

If the 2026 notes are redeemed on or after           , 2026 (the date that is three months prior to the scheduled maturity date for the 2026 notes), or if the 2046 notes are redeemed on or after           , 2046 (the date that is six months prior to the scheduled maturity date for the 2046 notes), respectively, the redemption price for the notes to be redeemed will equal 100% of the principal amount of such notes, plus accrued and unpaid interest. See “Description of Notes and Note Guarantee—Optional Redemption.”

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Special mandatory redemption
If (i) the Stock Purchase Agreement is terminated on any date prior to August 31, 2017 or (ii) the Acquisition is not consummated prior to August 31, 2017 (the earlier of any such date, a “Trigger Date”), then the issuer will be required to redeem the notes at 101% of the aggregate principal amount of the notes, plus accrued and unpaid interest.
See “Use of Proceeds” and “Description of Notes and Note Guarantee—Special Mandatory Redemption.”
Sinking fund
There are no provisions for a sinking fund.
Use of proceeds
We intend to use the net proceeds of this offering to finance the UGC Acquisition, to pay related costs and expenses, and for anticipated growth in our mortgage and other select businesses. The closing of this offering is not contingent on the closing of the UGC Acquisition. We will temporarily invest any net proceeds not used immediately in short-term, interest-bearing obligations. If the UGC Acquisition does not occur, the notes will be subject to a special mandatory redemption. See “Risk Factors—The issuer may not be able to repurchase the notes in the event of a special mandatory redemption and holders of the notes may not obtain their expected return,” “Use of Proceeds” and “Description of Notes and Note Guarantee—Special Mandatory Redemption” in this prospectus supplement.
Form and denomination
The notes will be represented by one or more global certificates deposited with, or on behalf of, The Depository Trust Company (“DTC”) or its nominee. Notes sold will be issuable in denominations of $2,000 or any integral multiples of $1,000 in excess thereof.
Governing law
The notes and the note guarantee will be governed by the laws of the State of New York.
Covenants
The indenture under which the notes and the note guarantee will be issued will contain various covenants, including limitations on mergers, amalgamations and consolidations, restrictions as to the disposition of the stock of designated subsidiaries and limitations on liens on the stock of designated subsidiaries.
Risk factors
See “Risk Factors” and the other information in this prospectus supplement and the accompanying prospectus for a discussion of factors you should consider carefully before deciding to invest in the notes.
Clearance and settlement
The notes will be cleared through DTC.

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Summary Historical and Preliminary Unaudited Pro Forma Condensed
Combined Financial Information
The table below shows our summary consolidated historical and preliminary unaudited pro forma condensed combined financial information at the dates and for the periods indicated. The summary historical financial information as of and for the years ended December 31, 2015, 2014 and 2013 has been derived from Arch’s audited consolidated financial statements, which have been audited by PricewaterhouseCoopers LLP, an independent registered public auditing firm, and are incorporated by reference herein. The summary historical financial information as of September 30, 2016 and for the nine months ended September 30, 2016 and 2015 is derived from Arch’s unaudited consolidated financial statements for such periods incorporated by reference herein.
The summary preliminary unaudited pro forma condensed combined financial information is (i) based on the historical financial information of Arch and United Guaranty and (ii) has been prepared to reflect the proposed acquisition of United Guaranty by Arch (the “UGC Acquisition”). The summary preliminary unaudited pro forma condensed combined financial information has been prepared by Arch’s management, after discussion with United Guaranty’s management. The summary preliminary unaudited pro forma condensed combined balance sheet information gives effect to the proposed UGC Acquisition and this offering as if they had occurred at September 30, 2016. The summary preliminary unaudited pro forma condensed combined statements of income information gives effect to the proposed UGC Acquisition, the Share Offering and this offering as if they had occurred at January 1, 2015. The summary historical financial information has been adjusted to reflect factually supportable items that are directly attributable to the UGC Acquisition, the Share Offering and this offering and, with respect to the summary preliminary unaudited pro forma condensed combined statements of income data only, are expected to have a continuing impact on the results of operations of the combined company. The summary preliminary unaudited pro forma condensed combined financial information is presented solely for informational purposes and is not necessarily indicative of the combined results of operations or financial position that might have been achieved for the periods or dates indicated, nor is it necessarily indicative of the future results of the combined company. See note 6 under the heading “Preliminary Unaudited Pro Forma Condensed Combined Financial Statements” for a description of the financing adjustments with respect to the UGC Acquisition and the assumptions as to the sources of financing underlying such adjustments.
The following summary consolidated historical and preliminary unaudited pro forma condensed combined financial information should be read in conjunction with, and is qualified in its entirety by reference to, our preliminary unaudited pro forma condensed consolidated financial information and accompanying notes included under the heading “Preliminary Unaudited Pro Forma Condensed Combined Financial Information” in this prospectus supplement, as well as the historical financial statements of Arch and UG Corp incorporated by reference herein. See “Where You Can Find Additional Information” in this prospectus supplement.


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Pro Forma
 
Historical
 
September 30,
 
September 30,
 
December 31,
 
2016
 
2016
 
2015
 
2014
 
2013
(U.S. dollars in thousands, except share data)
(unaudited)
 
(unaudited)
 
 
 
 
 
 
Balance Sheet Data:
 
 
 
 
 
 
 
 
 
Total investments
$
20,485,420

 
$
17,554,337

 
$
15,842,941

 
$
15,320,770

 
$
13,611,734

Premiums receivable
1,216,406

 
1,182,708

 
983,443

 
948,695

 
753,924

Reinsurance recoverable on unpaid and paid losses and LAE
2,102,799

 
2,076,248

 
1,867,373

 
1,812,845

 
1,804,330

Goodwill and intangible assets
678,696

 
90,941

 
97,531

 
109,539

 
27,319

Total assets
29,682,259

 
25,643,231

 
23,177,270

 
22,006,081

 
19,557,054

Reserves for losses and LAE
10,227,338

 
9,610,189

 
9,125,250

 
9,036,448

 
8,824,696

Unearned premiums
3,556,215

 
2,671,121

 
2,333,932

 
2,231,578

 
1,896,365

Senior notes
1,732,288

 
791,437

 
791,306

 
791,141

 
790,960

Revolving credit agreement borrowings
797,850

 
398,100

 
530,434

 
100,000

 
100,000

Total liabilities
20,271,459

 
17,250,642

 
16,028,376

 
14,887,435

 
13,909,558

Common shareholders’ equity available to Arch
7,595,533

 
6,577,322

 
5,879,881

 
5,805,053

 
5,322,496

Preferred shareholders’ equity available to Arch
775,000

 
775,000

 
325,000

 
325,000

 
325,000

Total shareholders’ equity available to Arch
8,370,533

 
7,352,322

 
6,204,881

 
6,130,053

 
5,647,496

Common shares and common share equivalents outstanding, net of treasury shares
135,438,013

 
122,675,197

 
122,627,783

 
127,367,934

 
133,674,884



 
Pro Forma
 
Historical
 
Nine Months
Ended
September 30,
 
Year Ended
December 31,
 
Nine Months Ended
September 30,
 
Years Ended December 31,
 
2016
 
2015
 
2016
 
2015
 
2015
 
2014
 
2013
(U.S. dollars in thousands, except share data)
(unaudited)
 
(unaudited)
 
(unaudited)
 
(unaudited)
 
 
 
 
 
 
Statement of Income Data:
 
 
 
 
 
 
 
 
 
 
 
 
 
Net premiums written
$
3,652,092

 
$
4,470,549

 
$
3,159,076

 
$
2,982,547

 
$
3,817,531

 
$
3,891,938

 
$
3,351,367

Total revenues
4,087,182

 
4,800,260

 
3,475,329

 
3,034,586

 
3,936,590

 
3,988,873

 
3,526,157

Losses and loss adjustment expenses
1,721,620

 
2,200,653

 
1,631,724

 
1,544,883

 
2,050,903

 
1,919,250

 
1,679,424

Underwriting related expenses
1,199,220

 
1,602,645

 
977,023

 
956,014

 
1,288,992

 
1,213,542

 
1,022,430

Interest expense
86,980

 
96,778

 
47,713

 
30,047

 
45,874

 
45,634

 
27,060

Total expenses
3,047,359

 
3,883,650

 
2,703,053

 
2,506,848

 
3,369,396

 
3,144,626

 
2,783,652

Income before income taxes
1,039,823

 
916,610

 
772,276

 
527,738

 
567,194

 
844,247

 
742,505

Net income
910,348

 
749,316

 
728,604

 
498,576

 
526,582

 
821,260

 
709,731

Preferred dividends
(34,172
)
 
(45,563
)
 
(16,453
)
 
(16,453
)
 
(21,938
)
 
(21,938
)
 
(21,938
)
Net income available to common shareholders
766,297

 
714,909

 
602,272

 
462,706

 
515,800

 
812,417

 
687,793

Weighted average common shares and common share equivalents outstanding—diluted
137,290,990

 
138,801,559

 
124,528,174

 
126,354,759

 
126,038,743

 
134,922,322

 
135,777,183

Diluted net income per share
$
5.58

 
$
5.15

 
$
4.84

 
$
3.66

 
$
4.09

 
$
6.02

 
$
5.07




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RISK FACTORS
An investment in the notes involves risks. Before making an investment decision, you should carefully consider the risks described in this prospectus supplement below and under “Cautionary Note Regarding Forward-Looking Statements,” and the risks described in our 2015 Form 10-K, together with all of the other information appearing in this prospectus supplement, the accompanying prospectus or the documents incorporated by reference in this prospectus supplement, in light of your particular investment objectives and financial circumstances. In addition to such risk factors, there may be additional risks and uncertainties of which management is not aware or focused on or that management deems immaterial. Our business, financial condition or results of operations could be materially adversely affected by any of these risks. The trading price of our securities could decline due to any of these risks, and you may lose all or part of your investment.
Risks Relating to Our Industry
We operate in a highly competitive environment, and we may not be able to compete successfully in our industry.
The insurance and reinsurance industry is highly competitive. We compete with major U.S. and non-U.S. insurers and reinsurers, many of which have greater financial, marketing and management resources than we do, as well as other potential providers of capital willing to assume insurance and/or reinsurance risk. We also compete with new companies that continue to be formed to enter the insurance and reinsurance markets. In addition, continued consolidation within the insurance and reinsurance industry will further enhance the already competitive underwriting environment. These consolidated entities may use their enhanced market power and broader capital base to negotiate price reductions for products and services that compete with ours, and we may experience rate declines and possibly write less business. In our insurance business, we compete with insurers that provide specialty property and casualty lines of insurance, including Alleghany Corporation, Allied World Assurance Company, Ltd., American International Group, Inc., AXIS Capital Holdings Limited, Berkshire Hathaway, Inc., Chubb Limited, CNA, Endurance Specialty Holdings Ltd., The Hartford Financial Services Group, Inc., HCC Insurance Holdings, Inc., Ironshore Inc., Liberty Mutual Insurance, Lloyd’s, Markel Insurance Company, RLI Corp., The Travelers Companies, W.R. Berkley Corp., XL Group plc and Zurich Insurance Group. In our reinsurance business, we compete with reinsurers that provide property and casualty lines of reinsurance, including Alleghany Corporation, Argo International Holdings, Ltd., AXIS Capital Holdings Limited, Berkshire Hathaway, Inc., Chubb Limited, Endurance Specialty Holdings Ltd., Everest Re Group Ltd., Hannover Rückversicherung AG, Lloyd’s, Markel Global Reinsurance, Munich Re Group, PartnerRe Ltd., RenaissanceRe Holdings Ltd., SCOR Global P&C, SCOR Global Life, Swiss Reinsurance Company, Third Point Reinsurance Ltd., Validus Holdings Ltd. and XL Group plc. We believe that we do not have a significant market share in any of our property and casualty markets or, prior to the closing of the UGC Acquisition, in the mortgage insurance market.
Financial institutions and other capital markets participants also offer alternative products and services similar to our own or alternative products that compete with insurance and reinsurance products, such as insurance/risk-linked securities, catastrophe bonds and derivatives. In recent years, capital market participants have been increasingly active in the reinsurance market and markets for related risks. Certain of the new companies entering the insurance and reinsurance markets are pursuing more aggressive investment strategies than do we and other traditional reinsurers, which may result in further downward pressure on premium rates. In this regard, we co-sponsored Watford Re Ltd., a newly formed property and casualty reinsurer, in 2014. We perform underwriting services and Highbridge Principal Strategies, LLC manages the investments, seeking higher yields and potentially assuming more risk than in our investment portfolio. If the investment and/or insurance underwriting strategies are not successful, we may be exposed to a risk of loss on our investment and in respect of the reinsurance cessions. In addition, we may not be aware of other companies that may be planning to enter the segments of the insurance and reinsurance market in which we operate.
Our competitive position is based on many factors, including our perceived overall financial strength, ratings assigned by independent rating agencies, geographic scope of business, client and broker relationships, premiums charged, contract terms and conditions, products and services offered (including the ability to design customized programs), appropriate and timely claim payments, reputation, experience and qualifications of employees and local presence. We may not be successful in competing with others on any of these bases, and the intensity of competition in our industry may erode profitability and result in less favorable policy terms and conditions for insurance and reinsurance companies generally, including us.
In our U.S. mortgage business, we compete with six active U.S. mortgage insurers, which include the mortgage insurance subsidiaries of Essent Group Ltd., Genworth Financial Inc., MGIC Investment Corporation, NMI Holdings Inc., Radian Group Inc. and, prior to the closing of the UGC Acquisition, United Guaranty. The level of competition within the

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private mortgage insurance industry has been intense and is not expected to diminish. In response to competitive pressures, among other factors, we reduced certain premium rates in 2015. In addition to pricing, we compete with other private mortgage insurers on the basis of underwriting guidelines, loss mitigation practices, financial strength, reputation, customer relationships, technology, service and other factors. One or more private mortgage insurers may seek increased market share by reducing pricing, or loosening their underwriting guidelines or practices, which could adversely affect our mortgage insurance operations. Competition within the private mortgage insurance industry could result in the loss of customers, lower premiums, riskier credit guidelines and other changes that could lower our revenues or increase our expenses.
The mortgage insurance industry’s business has been limited as a result of competition with the Federal Housing Administration (“FHA”), which substantially increased its market share beginning in 2008. In January 2015, FHA reduced the annual mortgage insurance premium it charges from 1.35% of the loan amount to 0.85%. This premium reduction made private mortgage insurance less competitive with the FHA for borrowers with certain credit characteristics. Other factors that could cause FHA to maintain or increase its share of the mortgage insurance market include: a further reduction in the premiums charged, or a shortening of the duration for which premiums are charged, for government mortgage insurance or a loosening of underwriting guidelines; imposition of additional loan level fees by the government sponsored entities (“GSEs”), Fannie Mae and Freddie Mac, on loans that require mortgage insurance; increases in GSE guaranty fees and the difference in the spread between Fannie Mae mortgage-backed securities (“MBS”) and Ginnie Mae MBS; and the implementation of new regulations under the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 and the Basel III Rules (as defined herein).
If the FHA or other government-sponsored mortgage insurance programs maintain or increase their share of the mortgage insurance market, our mortgage insurance business could be adversely affected. In addition to FHA and other federal mortgage insurance programs, lenders and investors may select other alternatives to private mortgage insurance, including: state-supported mortgage insurance funds in several states; lenders and other investors holding mortgages in portfolio and self-insuring; investors using credit enhancements other than mortgage insurance, using other credit enhancements in conjunction with reduced levels of mortgage insurance coverage, or accepting credit risk without credit enhancement; and lenders originating mortgages using “piggy-back” structures to avoid mortgage insurance, such as a first mortgage with an 80% loan-to-value and a second mortgage with a 10%, 15% or 20% loan-to-value (referred to as 80-10-10, 80-15-5 or 80-20 loans, respectively) rather than a first mortgage with a 90%, 95% or 100% loan-to-value that has mortgage insurance.
Arch MI U.S. and other private mortgage insurers increasingly compete with well capitalized multiline reinsurers and capital markets alternatives to private mortgage insurance. In 2015, the GSEs expanded their respective mortgage credit risk transfer programs, which led to increased opportunities for multiline property/casualty reinsurers (including, among others, PartnerRe Ltd., Transatlantic Reinsurance Company, Everest Re Group Ltd. and RenaissanceRe Holdings Ltd.) and capital markets participants. Certain primary mortgage insurers use reinsurance as a form of capital relief. This has attracted additional reinsurers into the market and we are seeing increased competition as a result.
For other U.S. risk sharing products and non-U.S. mortgage insurance opportunities, we have also seen increased competition from well capitalized and highly rated multiline reinsurers. It is our expectation that the depth and capacity of competitors from this segment will continue to increase over the next several years as more credit risk is borne by private capital.
Any alternatives to private mortgage insurance that develop could adversely affect our operations. Any failure by us to effectively compete within and outside the mortgage insurance industry could adversely affect our financial condition and results of operations.
The insurance and reinsurance industry is highly cyclical, and we expect to continue to experience periods characterized by excess underwriting capacity and unfavorable premium rates.
Historically, insurers and reinsurers have experienced significant fluctuations in operating results due to competition, frequency of occurrence or severity of catastrophic events, levels of capacity, general economic conditions, changes in equity, debt and other investment markets, changes in legislation, case law and prevailing concepts of liability and other factors. In particular, demand for reinsurance is influenced significantly by the underwriting results of primary insurers and prevailing general economic conditions. The supply of insurance and reinsurance is related to prevailing prices and levels of surplus capacity that, in turn, may fluctuate in response to changes in rates of return being realized in the insurance and reinsurance industry on both underwriting and investment sides. As a result, the insurance and reinsurance business historically has been

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a cyclical industry characterized by periods of intense price competition due to excessive underwriting capacity as well as periods when shortages of capacity permitted favorable premium levels and changes in terms and conditions. The supply of insurance and reinsurance has increased over the past several years and may increase further, either as a result of capital provided by new entrants or by the commitment of additional capital by existing insurers or reinsurers. Continued increases in the supply of insurance and reinsurance may have consequences for us, including fewer contracts written, lower premium rates, increased expenses for customer acquisition and retention, and less favorable policy terms and conditions.
Claims for catastrophic events could cause large losses and substantial volatility in our results of operations and could have a material adverse effect on our financial position and results of operations. As a result, the value of our securities, including our common shares and preferred shares, may fluctuate widely.
We have large aggregate exposures to natural and man-made catastrophic events. Catastrophes can be caused by various events, including hurricanes, floods, tsunamis, windstorms, earthquakes, hailstorms, tornados, explosions, severe winter weather, fires, droughts and other natural disasters. Catastrophes can also cause losses in non-property business such as workers’ compensation or general liability. In addition to the nature of the property business, we believe that economic and geographic trends affecting insured property, including inflation, property value appreciation and geographic concentration tend to generally increase the size of losses from catastrophic events over time. Actual losses from future catastrophic events may vary materially from estimates due to the inherent uncertainties in making such determinations resulting from several factors, including the potential inaccuracies and inadequacies in the data provided by clients, brokers and ceding companies, the modeling techniques and the application of such techniques, the contingent nature of business interruption exposures, the effects of any resultant demand surge on claims activity and attendant coverage issues.
In addition, over the past several years, changing weather patterns and climatic conditions, such as global warming, have added to the unpredictability and frequency of natural disasters in certain parts of the world and created additional uncertainty as to future trends and exposures. Although the loss experience of catastrophe insurers and reinsurers has historically been characterized as low frequency, there is a growing consensus today that climate change increases the frequency and severity of extreme weather events and, in recent years, the frequency of major catastrophes appears to have increased. Claims for catastrophic events, or an unusual frequency of smaller losses in a particular period, could expose us to large losses and cause substantial volatility in our results of operations, which could have a material adverse effect on our ability to write new business and cause the value of our securities, including our common shares and preferred shares, to fluctuate widely.
We could face unanticipated losses from war, terrorism and political instability, and these or other unanticipated losses could have a material adverse effect on our financial condition and results of operations.
We have substantial exposure to unexpected, large losses resulting from future man-made catastrophic events, such as acts of war, acts of terrorism and political instability. These risks are inherently unpredictable. It is difficult to predict the timing of such events with statistical certainty or estimate the amount of loss any given occurrence will generate. In certain instances, we specifically insure and reinsure risks resulting from acts of terrorism. Even in cases where we attempt to exclude losses from terrorism and certain other similar risks from some coverages written by us, we may not be successful in doing so. Moreover, irrespective of the clarity and inclusiveness of policy language, there can be no assurance that a court or arbitration panel will not limit enforceability of policy language or otherwise issue a ruling adverse to us. Accordingly, while we believe our reinsurance programs, together with the coverage provided under the Terrorism Risk Insurance Act of 2002, as amended under the Terrorism Risk Insurance Extension Act of 2005 and amended and extended again by the Terrorism Risk Insurance Program Reauthorization Act of 2007 (“TRIPRA”), are sufficient to reasonably limit our net losses relating to potential future terrorist attacks, we can offer no assurance that our available capital will be adequate to cover losses when they materialize. To the extent that an act of terrorism is certified by the Secretary of the Treasury and aggregate industry insured losses resulting from the act of terrorism exceeds the prescribed program trigger, our U.S. insurance operations may be covered under TRIPRA for up to 84% of their respective losses for 2016, 83% for 2017, 82% for 2018, 81% for 2019 and 80% for 2020, in each case subject to a mandatory deductible of 20% of our prior year’s direct earned premium for covered property and liability coverages. The program trigger for calendar year 2016 is $120 million and will increase by $20 million per year until it becomes $200 million in 2020. If an act (or acts) of terrorism result in covered losses exceeding the $100 billion annual limit, insurers with losses exceeding their deductibles will not be responsible for additional losses. It is not possible to completely eliminate our exposure to unforecasted or unpredictable events, and to the extent that losses from such risks occur, our financial condition and results of operations could be materially adversely affected.

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The insurance and reinsurance industry is subject to regulatory and legislative initiatives or proposals from time to time which could adversely affect our business.
From time to time, various regulatory and legislative changes have been proposed in the insurance and reinsurance industry. Among the proposals that are at present being considered are the possible introduction of global regulatory standards for the amount of capital that insurance groups must maintain across the group.
The extreme turmoil in the financial markets has increased the likelihood of changes in the way the financial services industry is regulated. Governmental authorities in the U.S. and worldwide have become increasingly interested in potential risks posed by the insurance industry as a whole, and to commercial and financial systems in general. While we cannot predict the exact nature, timing or scope of possible governmental initiatives, there may be increased regulatory intervention in our industry in the future. For example, the U.S. federal government has increased its scrutiny of the insurance regulatory framework in recent years, and some state legislators have considered or enacted laws that will alter and likely increase state regulation of insurance and reinsurance companies and holding companies. Moreover, the National Association of Insurance Commissioners (“NAIC”), which is an association of the insurance commissioners of all 50 states and the District of Columbia, regularly reexamines existing laws and regulations. There are also a variety of proposals being considered by various state legislatures.
A new European solvency framework and prudential regime for insurers and reinsurers, under the Solvency II Directive 2009/138/EC (“Solvency II”), took effect in full on January 1, 2016. Solvency II imposes economic risk-based solvency requirements across all member states (“Member State”) of the European Union (“EU”) and consists of three pillars: Pillar I—quantitative capital requirements, based on a valuation of the entire balance sheet; Pillar II—qualitative regulatory review, which includes governance, internal controls, enterprise risk management and supervisory review process; and Pillar III—market discipline, which is accomplished through reporting of the insurer’s financial condition to regulators and the public. Solvency II is supplemented by European Commission Delegated Regulation (EU) 2015/35 (the “Delegated Regulation”), other European Commission “delegated acts” and binding technical standards, and guidelines issued by EIOPA. The Delegated Regulation sets out more detailed requirements for individual insurance and reinsurance undertakings, as well as for groups, based on the overarching provisions of Solvency II, which together make up the core of the single prudential rulebook for insurance and reinsurance undertakings in the EU. Solvency II imposes significant requirements for our EU-based regulated companies which require substantial documentation and implementation effort.
The Bermuda Monetary Authority has also implemented and imposed additional requirements on the individual companies it regulates, such as Arch Re Bermuda, and over the entire Arch group of insurance companies (the “Arch Group”) pursuant to its powers as group supervisor, driven, in large part, by Solvency II. The European Commission has adopted a decision concluding that Bermuda meets the full equivalence criteria under Solvency II, which decision applies from January 1, 2016.
The U.S. mortgage insurance industry is subject to substantial federal and state regulation, which has increased in recent years. The U.S. mortgage insurance industry is also subject to increased federal and state regulatory scrutiny (including by state insurance regulatory authorities), which could generate new regulations, regulatory actions or investigations. Failure to comply with federal and state regulations promulgated by federal consumer protection authorities and state insurance regulatory authorities could lead to enforcement or disciplinary action, including the imposition of penalties and the revocation of our authorization to operate.
Underwriting risks and reserving for losses are based on probabilities and related modeling, which are subject to inherent uncertainties.
Our success is dependent upon our ability to assess accurately the risks associated with the businesses that we insure and reinsure. We establish reserves for losses and loss adjustment expenses which represent estimates involving actuarial and statistical projections, at a given point in time, of our expectations of the ultimate settlement and administration costs of losses incurred. We utilize actuarial models as well as available historical insurance industry loss ratio experience and loss development patterns to assist in the establishment of loss reserves. Most or all of these factors are not directly quantifiable, particularly on a prospective basis, and the effects of these and unforeseen factors could negatively impact our ability to accurately assess the risks of the policies that we write. Changes in the assumptions used by these models or by management could lead to an increase in our estimate of ultimate losses in the future. In addition, there may be significant reporting lags between the occurrence of the insured event and the time it is actually reported to the insurer and additional lags between the time of reporting and final settlement of claims. Unfavorable development in any of these factors could cause the level of

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reserves to be inadequate. In addition, the estimation of loss reserves is also more difficult during times of adverse economic and market conditions due to unexpected changes in behavior of claimants and policyholders, including an increase in fraudulent reporting of exposures and/or losses, reduced maintenance of insured properties or increased frequency of small claims. Changes in the level of inflation also result in an increased level of uncertainty in our estimation of loss reserves. As a result, actual losses and loss adjustment expenses paid will deviate, perhaps substantially, from the reserve estimates reflected in our financial statements.
If our loss reserves are determined to be inadequate, we will be required to increase loss reserves at the time of such determination with a corresponding reduction in our net income in the period in which the deficiency becomes known. It is possible that claims in respect of events that have occurred could exceed our claim reserves and have a material adverse effect on our results of operations, in a particular period, or our financial condition in general. As a compounding factor, although most insurance contracts have policy limits, the nature of property and casualty insurance and reinsurance is such that losses can exceed policy limits for a variety of reasons and could significantly exceed the premiums received on the underlying policies, thereby further adversely affecting our financial condition.
As of September 30, 2016, our consolidated reserves for unpaid losses and loss adjustment expenses, net of unpaid losses and loss adjustment expenses recoverable, were approximately $7.56 billion. Such reserves were established in accordance with applicable insurance laws and U.S. generally accepted accounting principles (“U.S. GAAP”). Loss reserves are inherently subject to uncertainty. In establishing the reserves for losses and loss adjustment expenses, we have made various assumptions relating to the pricing of our reinsurance contracts and insurance policies and have also considered available historical industry experience and current industry conditions. Any estimates and assumptions made as part of the reserving process could prove to be inaccurate due to several factors, including the fact that relatively limited historical information has been reported to us through September 30, 2016.
In accordance with mortgage insurance industry practice, we establish loss reserves only for loans in our existing default inventory. Because our mortgage insurance reserving process does not take account of the impact of future losses from loans that are not in default, mortgage insurance loss reserves are not intended to be an estimate of total future losses. Our expectation of total future losses under our mortgage insurance policies in force at any period end is not reflected in our financial statements. In addition to establishing loss reserves for loans in default, under U.S. GAAP, we are required to establish a premium deficiency reserve for our mortgage insurance products if the amount of expected future losses for a particular product and maintenance costs for such product exceeds expected future premiums, existing reserves and the anticipated investment income. We evaluate whether a premium deficiency exists quarterly. There can be no assurance that premium deficiency reserves will not be required in future periods. If this were to occur, our results of operations and financial condition could be adversely affected.
The failure of any of the loss limitation methods we employ could have a material adverse effect on our financial condition or results of operations.
We seek to limit our loss exposure by writing a number of our reinsurance contracts on an excess of loss basis, adhering to maximum limitations on reinsurance written in defined geographical zones, limiting program size for each client and prudent underwriting of each program written. In the case of proportional treaties, we may seek per occurrence limitations or loss ratio caps to limit the impact of losses from any one or series of events. In our insurance operations, we seek to limit our exposure through the purchase of reinsurance. We cannot be certain that any of these loss limitation methods will be effective. We also seek to limit our loss exposure by geographic diversification. Geographic zone limitations involve significant underwriting judgments, including the determination of the area of the zones and the inclusion of a particular policy within a particular zone’s limits. There can be no assurance that various provisions of our policies, such as limitations or exclusions from coverage or choice of forum, will be enforceable in the manner we intend, as it is possible that a court or regulatory authority could nullify or void an exclusion or limitation, or legislation could be enacted modifying or barring the use of these exclusions and limitations. Disputes relating to coverage and choice of legal forum may also arise. Underwriting is inherently a matter of judgment, involving important assumptions about matters that are inherently unpredictable and beyond our control, and for which historical experience and probability analysis may not provide sufficient guidance. One or more catastrophic or other events could result in claims that substantially exceed our expectations, or the protections set forth in our policies could be voided, which, in either case, could have a material adverse effect on our financial condition or our results of operations, possibly to the extent of eliminating our shareholders’ equity.
For our natural catastrophe exposed business, we seek to limit the amount of exposure we will assume from any one insured or reinsured and the amount of the exposure to catastrophe losses from a single event in any geographic zone. We

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monitor our exposure to catastrophic events, including earthquake and wind, and periodically reevaluate the estimated probable maximum pre-tax loss for such exposures. Our estimated probable maximum pre-tax loss is determined through the use of modeling techniques, but such estimate does not represent our total potential loss for such exposures. Our models employ both proprietary and vendor-based systems and include cross-line correlations for property, marine, offshore energy, aviation, workers compensation and personal accident. We seek to limit the probable maximum pre-tax loss to a specific level for severe catastrophic events. Currently, we seek to limit our 1-in-250 year return period net probable maximum loss from a severe catastrophic event in any geographic zone to approximately 25% of total shareholders’ equity. We reserve the right to change this threshold at any time. Net probable maximum loss estimates are net of expected reinsurance recoveries, before income tax and before excess reinsurance reinstatement premiums. Loss estimates are reflective of the zone indicated and not the entire portfolio. Since hurricanes and windstorms can affect more than one zone and make multiple landfalls, our loss estimates include clash estimates from other zones. Our loss estimates do not represent our maximum exposures and it is highly likely that our actual incurred losses would vary materially from the modeled estimates. There can be no assurances that we will not suffer pre-tax losses greater than 25% of our total shareholders’ equity from one or more catastrophic events due to several factors, including the inherent uncertainties in estimating the frequency and severity of such events and the margin of error in making such determinations resulting from potential inaccuracies and inadequacies in the data provided by clients and brokers, the modeling techniques and the application of such techniques or as a result of a decision to change the percentage of shareholders’ equity exposed to a single catastrophic event. Catastrophe modeling utilizes a mix of historical data, scientific theory and mathematical methods. We believe that there is considerable uncertainty in the data and parameter inputs for insurance industry catastrophe models. In that regard, there is no universal standard in the preparation of insured data for use in the models and the running of modeling software. In our view, the accuracy of the models depends heavily on the availability of detailed insured loss data from actual recent large catastrophes. Due to the limited number of events, there is significant potential for substantial differences between the modeled loss estimate and actual company experience for a single large catastrophic event. This potential difference could be even greater for perils with less modeled annual frequency, such as U.S. earthquake, or less modeled annual severity, such as European windstorm. We are also reliant upon third-party estimates of industry insured exposures, and there is significant variation possible around the relationship between our loss and that of the industry following a catastrophic event. In addition, actual losses may increase if our reinsurers fail to meet their obligations to us or the reinsurance protections purchased by us are exhausted or are otherwise unavailable. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Natural and Man-Made Catastrophic Events” in our 2015 Form 10-K. Depending on business opportunities and the mix of business that may comprise our insurance and reinsurance portfolio, we may seek to adjust our self-imposed limitations on probable maximum pre-tax loss for catastrophe exposed business.
Adverse developments in the financial markets could have a material adverse effect on our results of operations, financial position and our businesses, and may also limit our access to capital; our policyholders, reinsurers and retrocessionaires may also be affected by such developments, which could adversely affect their ability to meet their obligations to us.
Adverse developments in the financial markets, such as disruptions, uncertainty or volatility in the capital and credit markets, may result in realized and unrealized capital losses that could have a material adverse effect on our results of operations, financial position and our businesses, and may also limit our access to capital required to operate our business. Depending on market conditions, we could incur additional realized and unrealized losses on our investment portfolio in future periods, which could have a material adverse effect on our results of operations, financial condition and business. Economic conditions could also have a material impact on the frequency and severity of claims and therefore could negatively impact our underwriting returns. In addition, our policyholders, reinsurers and retrocessionaires may be affected by developments in the financial markets, which could adversely affect their ability to meet their obligations to us. The volatility in the financial markets could continue to significantly affect our investment returns, reported results and shareholders’ equity.
Market developments and government actions regarding the sovereign debt crisis in Europe, particularly in Portugal, Ireland, Italy, Greece and Spain, could have a material adverse effect on our business, financial condition, results of operations and liquidity. In addition, recent developments relating to the United Kingdom’s referendum vote in favor of leaving the European Union could adversely affect us.
The global recession and disruption of the financial markets has led to concerns over access to capital markets and the solvency of EU Member States, including Portugal, Ireland, Italy, Greece and Spain and of financial institutions that have significant direct or indirect exposure to debt issued by, or the economies of, these countries. As of September 30, 2016, our investment portfolio does not contain significant investments in government bonds issued by Portugal, Ireland, Italy, Greece and Spain or in financial institutions that have significant direct or indirect exposure to debt issued by, or the economies of,

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those countries. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations Financial Condition, Liquidity and Capital Resources—Financial Condition—Investable Assets” in our 2016 Third Quarter Form 10-Q. The continued uncertainty over the outcome of international financial support programs and the possibility that EU Member States may experience similar financial troubles could further disrupt global markets. Rating agency downgrades on certain European sovereign debt, as well as downgrades on certain European financial institutions, and growing concern of the potential default of government issuers or of a possible withdrawal by one or more EU Member States from the Eurozone and/or a break-up of the EU has further contributed to this uncertainty.
On June 23, 2016 a referendum was held in the U.K. in which it was decided that the U.K. would leave the European Union (“Brexit”). As a result of this vote, negotiations are expected to commence to determine the terms of the U.K.’s withdrawal from the EU, including the terms of trade between the U.K. and the EU. The effects of Brexit have been, and are expected to continue to be, far reaching. The perceptions as to the impact of Brexit may adversely affect business activity and economic conditions in Europe and globally and could continue to contribute to instability in global financial and foreign exchange markets. Brexit could also have the effect of disrupting the free movement of goods, services and people between the U.K. and the EU. The full effects of Brexit are uncertain and will depend on any agreements the U.K. may make to retain access to EU markets. Lastly, as a result of the Brexit, other European countries may seek to conduct referenda with respect to their continuing membership with the EU. Given these possibilities and others we may not anticipate, as well as the lack of comparable precedent, the full extent to which our business, results of operations and financial condition could be adversely affected by Brexit is uncertain.
The negative impact of these events on economic conditions and global markets could have an adverse effect on our business, financial condition and liquidity. For example, this crisis may cause the value of the European currencies, including the Euro and the British Pounds Sterling, to further depreciate against the U.S. Dollar, which in turn could materially adversely impact assets denominated in such currencies held in our investment portfolio or results of our European book of business. In addition, the applicable legal framework and the terms of our Euro-denominated insurance policies and reinsurance agreements generally do not address withdrawal by a member state from the Eurozone or a break-up of the EU, which could create uncertainty in our payment obligations and rights under those policies and agreements in the event that such a withdrawal or break-up does occur. Additionally, a contagion effect of a possible default of one or more EU Member States and/or their withdrawal from the Eurozone, or the failure of financial institutions, on the global economy, including other EU Member States and our counterparties located in those countries, or a break-up of the EU could have a material adverse effect on our business, financial condition, results of operations and liquidity.
The risk associated with underwriting treaty reinsurance business could adversely affect us.
Like other reinsurers, our reinsurance group does not separately evaluate each of the individual risks assumed under reinsurance treaties. Therefore, we are largely dependent on the original underwriting decisions made by ceding companies. We are subject to the risk that the ceding companies may not have adequately evaluated the risks to be reinsured and that the premiums ceded may not adequately compensate us for the risks we assume.
While reinsurance and retrocessional coverage will be used to limit our exposure to risks, the availability of such arrangements may be limited, and counterparty credit and other risks associated with our reinsurance arrangements may result in losses which could adversely affect our financial condition and results of operations.
For the purposes of managing risk, we use reinsurance and also may use retrocessional arrangements. In the normal course of business, our insurance subsidiaries cede a portion of their premiums through pro rata, excess of loss and facultative reinsurance agreements. Our reinsurance subsidiaries purchase a limited amount of retrocessional coverage as part of their aggregate risk management program. In addition, our reinsurance subsidiaries participate in “common account” retrocessional arrangements for certain pro rata treaties. Such arrangements reduce the effect of individual or aggregate losses to all companies participating on such treaties, including the reinsurers, such as our reinsurance subsidiaries, and the ceding company. The availability and cost of reinsurance and retrocessional protection is subject to market conditions, which are beyond our control. As a result of such market conditions and other factors, we may not be able to successfully mitigate risk through reinsurance and retrocessional arrangements.
Further, we are subject to credit risk with respect to our reinsurance and retrocessions because the ceding of risk to reinsurers and retrocessionaires does not relieve us of our liability to the clients or companies we insure or reinsure. We monitor the financial condition of our reinsurers and attempt to place coverages only with carriers we view as substantial and financially sound. Although we have not experienced any material credit losses to date, an inability of our reinsurers or

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retrocessionaires to meet their obligations to us could have a material adverse effect on our financial condition and results of operations. Our losses for a given event or occurrence may increase if our reinsurers or retrocessionaires dispute or fail to meet their obligations to us or the reinsurance or retrocessional protections purchased by us are exhausted or are otherwise unavailable for any reason. Our failure to establish adequate reinsurance or retrocessional arrangements or the failure of our existing reinsurance or retrocessional arrangements to protect us from overly concentrated risk exposure could adversely affect our financial condition and results of operations.
Our reliance on brokers subjects us to their credit risk.
In accordance with industry practice, we generally pay amounts owed on claims under our insurance and reinsurance contracts to brokers, and these brokers, in turn, pay these amounts to the clients that have purchased insurance or reinsurance from us. In some jurisdictions, if a broker fails to make such payment, we may remain liable to the insured or ceding insurer for the deficiency. Likewise, in certain jurisdictions, when the insured or ceding company pays the premiums for these contracts to brokers for payment to us, these premiums are considered to have been paid and the insured or ceding company will no longer be liable to us for those amounts, whether or not we have actually received the premiums from the broker. Consequently, we assume a degree of credit risk associated with our brokers. To date, we have not experienced any losses related to this credit risk.
Unexpected political legislative or judicial developments related to coverage may adversely affect us.
The effects of emerging claims and coverage issues are uncertain. The insurance industry is also affected by political, judicial and legal developments that have in the past resulted in new or expanded theories of liability. These or other changes could impose new financial obligations on us by extending coverage beyond our underwriting intent or otherwise require us to make unplanned modifications to the products and services that we provide, or cause the delay or cancellation of products and services that we provide. In some instances, these changes may not become apparent until sometime after we have issued insurance or reinsurance contracts that are affected by the changes. As a result, the full extent of liability under our insurance or reinsurance contracts may not be known for many years after a contract is issued. The effects of unforeseen developments or substantial government intervention could adversely impact our ability to achieve our goals.
The insurance businesses in which we operate may be subject to periodic negative publicity, which may negatively impact our financial results.
Our products and services are ultimately distributed to individual and business customers. From time to time, consumer advocacy groups or the media may focus attention on insurance products and services, thereby subjecting the industry to periodic negative publicity. We also may be negatively impacted if competitors in one or more of our markets engage in practices resulting in increased public attention to our business. These factors may further increase our costs of doing business and adversely affect our profitability by impeding our ability to market our products and services, requiring us to change our products or services or by increasing the regulatory burdens under which we operate.
Changes in current accounting practices and future pronouncements may materially impact our reported financial results.
Developments in accounting practices, for example a convergence of U.S. GAAP with international financial reporting standards (IFRS), may require considerable additional expense to comply with, particularly if we are required to prepare information relating to prior periods for comparable purposes or to apply the new requirements retroactively. The impact of changes in current accounting practices and future pronouncements cannot be predicted, but may affect the results of our operations, including among other things, the calculation of net income.
Risks Relating to Our Company
The proposed UGC Acquisition, as well as any future acquisitions, growth of our operations through the addition of new lines of insurance or reinsurance business through our existing subsidiaries or through the formation of new subsidiaries, expansion into new geographic regions and/or joint ventures or partnerships may expose us to risks.
We may in the future make acquisitions either of other companies or selected blocks of business, expand our business lines or enter into joint ventures. The proposed UGC Acquisition, as well as any future acquisitions, may expose us to challenges and risks, including: integrating financial and operational reporting systems and establishing satisfactory

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budgetary and other financial controls; funding increased capital needs, overhead expenses or cash flow shortages that may occur if anticipated sales and revenues are not realized or are delayed, whether by general economic or market conditions or unforeseen internal difficulties; obtaining management personnel required for expanded operations; obtaining necessary regulatory permissions; the value of assets acquired may be lower than expected or may diminish due to credit defaults or changes in interest rates and liabilities assumed may be greater than expected; the assets and liabilities we may acquire may be subject to foreign currency exchange rate fluctuation; and financial exposures in the event that the sellers of the entities we acquire are unable or unwilling to meet their indemnification, reinsurance and other obligations to us.
Our failure to manage successfully these operational challenges and risks may impact our results of operations. In addition, if the reserves established by us, as they relate to any acquired book of business, prove to be inadequate, then subject to whatever recourse we may have against the seller or reinsurers, we may be responsible for adverse developments in such reserves.
We may fail to realize the growth prospects and other benefits anticipated as a result of the UGC Acquisition.
The success of the UGC Acquisition will depend, in part, on our ability to realize the anticipated business opportunities and growth prospects from acquiring United Guaranty. We may never realize these business opportunities and growth prospects. Integrating United Guaranty will require significant efforts and expenditures. Our management might have its attention diverted while trying to integrate operations and corporate and administrative infrastructures and the cost of integration may exceed our expectations. We may also be required to make unanticipated capital expenditures or investments in order to maintain, improve or sustain the acquired operations or take writeoffs or impairment charges and may be subject to unanticipated or unknown liabilities relating to United Guaranty. We might experience increased competition that limits our ability to expand our business, and we might not be able to capitalize on expected business opportunities. It is possible that, following the closing of the UGC Acquisition, we may determine to reduce certain types of businesses that United Guaranty currently writes, which may result in lower revenues for the combined Arch MI U.S. and United Guaranty businesses following the UGC Acquisition than the pro forma combined revenues of Arch MI U.S. and United Guaranty for historical periods as set forth in our pro forma financial statements and the notes related thereto that are included in this prospectus supplement under the heading “Preliminary Unaudited Pro Forma Condensed Combined Financial Information.” If any of these factors limit our ability to integrate United Guaranty successfully or on a timely basis, the expectations of future results of operations following the UGC Acquisition might not be met.
In addition, Arch MI U.S. and United Guaranty have operated and, until the completion of the UGC Acquisition, will continue to operate separately. It is possible that the integration process could result in the loss of key employees, the disruption of each company’s ongoing businesses, tax costs or inefficiencies, or inconsistencies in standards, controls, information technology systems, procedures and policies, any of which could adversely affect our ability to achieve the anticipated benefits of the UGC Acquisition and could harm our financial performance.
We will incur significant transaction and acquisition-related integration costs in connection with the UGC Acquisition.
We are currently developing a plan to integrate United Guaranty after the completion of the UGC Acquisition. Although we anticipate achieving synergies in connection with the UGC Acquisition, we also expect to incur costs to implement such cost savings measures. We cannot identify the timing, nature and amount of all such charges as of the date of this prospectus supplement. The significant transaction costs and acquisition-related integration costs could materially adversely affect our results of operations in the period in which such charges are recorded or our cash flow in the period in which any related costs are actually paid. Although we believe that the elimination of duplicative costs, as well as the realization of other efficiencies related to the integration of United Guaranty, will offset incremental transaction and acquisition-related costs over time, this net benefit may not be achieved in the near term, or at all. We have identified some, but not all, of the actions necessary to achieve our anticipated cost and operational savings. Accordingly, the cost and operational savings may not be achievable in our anticipated amount or time frame or at all. Investors should not place undue reliance on the anticipated benefits of the UGC Acquisition in making their investment decision.
We will be subject to business uncertainties while the UGC Acquisition is pending that could adversely affect our current and anticipated business.
Uncertainty about the effect of the UGC Acquisition on employees and customers may have an adverse effect on us. Although we intend to take actions to reduce any adverse effects, these uncertainties may impair our and their ability to attract, retain and motivate key personnel until the UGC Acquisition is completed and for a period of time thereafter. These

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uncertainties could cause customers, suppliers and others that deal with us to seek to change existing business relationships. Employee retention could be reduced while the UGC Acquisition is pending, as employees may experience uncertainty about their future roles. If, despite our retention efforts, key employees depart because of concerns relating to the uncertainty and difficulty of the integration process or a desire not to remain with us, our business could be harmed.
The preparation of our financial statements requires us to make many estimates and judgments, which are even more difficult than those made in a more mature company since relatively limited historical information has been reported to us through September 30, 2016.
The preparation of consolidated financial statements requires us to make many estimates and judgments that affect the reported amounts of assets, liabilities (including reserves), revenues and expenses, and related disclosures of contingent liabilities. On an ongoing basis, we evaluate our estimates, including those related to revenue recognition, insurance, reinsurance and other reserves, reinsurance recoverables, investment valuations, intangible assets, bad debts, income taxes, contingencies and litigation. We base our estimates on historical experience, where possible, and on various other assumptions that we believe to be reasonable under the circumstances, which form the basis for our judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Estimates and judgments for a relatively new insurance and reinsurance company, like our company, are even more difficult to make than those made in a more mature company since relatively limited historical information has been reported to us through September 30, 2016. Instead, our current loss reserves are primarily based on estimates of exposures on reported claims and estimates involving actuarial and statistical projections of our expectations of the ultimate settlement and administration costs of claims incurred but not yet reported. We utilize actuarial models as well as historical insurance industry loss development patterns to establish our initial loss reserves. Over time, other common reserving methodologies have begun to be employed. Actual claims and claim expenses paid may, and likely will, deviate, perhaps substantially, from the reserve estimates reflected in our financial statements.
A downgrade in our financial strength ratings or our inability to obtain a rating for our operating insurance and reinsurance subsidiaries may adversely affect our relationships with clients and brokers and negatively impact sales of our products.
Third-party rating agencies, such as A.M. Best, assess and rate the financial strength of insurers and reinsurers based upon criteria established by the rating agencies, which criteria are subject to change. Ratings are an important factor in establishing the competitive position of insurance and reinsurance companies. Insureds, ceding insurers, brokers and reinsurance intermediaries use these ratings as one measure by which to assess the financial strength and quality of insurers and reinsurers. These ratings are often an important factor in the decision by an insured, ceding insurer, broker or intermediary of whether to place business with a particular insurance or reinsurance provider.
The financial strength ratings of our operating insurance and reinsurance subsidiaries are subject to periodic review as rating agencies evaluate us to confirm that we continue to meet their criteria for ratings assigned to us by them. Such ratings may be revised downward or revoked at the sole discretion of such ratings agencies in response to a variety of factors, including a minimum capital adequacy ratio, management, earnings, capitalization and risk profile. Following the announcement of the UGC Acquisition, A.M. Best announced that it had placed the “A+” financial strength rating of our property and casualty insurance and reinsurance subsidiaries under review with developing implications; Standard & Poor’s Financial Services affirmed our property and casualty subsidiaries’ “A+” financial strength ratings but revised its outlook to negative; Moody’s Investors Service placed our ratings on review and is expected, following the closing of the UGC Acquisition, to lower our property and casualty insurance subsidiaries’ financial strength rating by one notch to “A2”; and Fitch Ratings affirmed our property and casualty subsidiaries’ “A+” financial strength ratings. See also “—Risks Relating to the Notes—Our credit ratings, including ratings on our long-term debt including the notes, may be downgraded as a result of the UGC Acquisition or otherwise.” We can offer no assurances that our ratings will remain at their current levels.
A ratings downgrade or the potential for such a downgrade, or failure to obtain a necessary rating, could adversely affect our relationships with agents, brokers, wholesalers, intermediaries, clients and other distributors of our existing products and services, as well as new sales of our products and services. In addition, under certain of the reinsurance agreements assumed by our reinsurance operations, upon the occurrence of a ratings downgrade or other specified triggering event with respect to our reinsurance operations, such as a reduction in surplus by specified amounts during specified periods, our ceding company clients may be provided with certain rights, including, among other things, the right to terminate the subject reinsurance agreement and/or to require that our reinsurance operations post additional collateral. Any ratings downgrade or failure to obtain a necessary rating could adversely affect our ability to compete in our markets, could cause our premiums and

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earnings to decrease and have a material adverse impact on our financial condition and results of operations. In addition, a downgrade in ratings of certain of our operating subsidiaries would in certain cases constitute an event of default under our credit facilities. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Contractual Obligations and Commercial Commitments—Letter of Credit and Revolving Credit Facilities” in our 2015 Form 10-K for a discussion of our credit facilities.
In light of the difficulties experienced recently by many financial institutions, including our competitors in the insurance industry, we believe it is possible that rating agencies may heighten the level of scrutiny they apply when analyzing companies in our industry, may increase the frequency and scope of their reviews, may request additional information from the companies that they rate (including additional information regarding the valuation of investment securities held), and may adjust upward the capital and other requirements employed in their models for maintenance of certain rating levels.
Technology breaches or failures, including, but not limited to, those resulting from a malicious cyber attack on us or our business partners and service providers, could disrupt or otherwise negatively impact our business and/or expose us to litigation.
We rely on information technology systems to process, transmit, store and protect the electronic information, financial data and proprietary models that are critical to our business. Furthermore, a significant portion of the communications between our employees and our business partners and service providers depends on information technology and electronic information exchange. Like all companies, our information technology systems are vulnerable to data breaches, interruptions or failures due to events that may be beyond our control, including, but not limited to, natural disasters, power outages, theft, terrorist attacks, computer viruses, hackers, errors in usage and general technology failures. Additionally, our employees and vendors may use portable computers or mobile devices which may contain duplicate or similar information to that in our computer systems, and these devices can be stolen, lost or damaged. Security breaches could expose us to the loss or misuse of our information, litigation and potential liability. In addition, cyber incidents that impact the availability, reliability, speed, accuracy or other proper functioning of these systems could have a significant negative impact on our operations and possibly our results. An incident could also result in a violation of applicable privacy and other laws, damage our reputation, cause a loss of customers or give rise to monetary fines and other penalties, which could be significant.
We believe that we have established and implemented appropriate security measures, controls and procedures to safeguard our information technology systems and to prevent unauthorized access to such systems and any data processed and/or stored in such systems, and we periodically employ third parties to evaluate and test the adequacy of such systems, controls and procedures. In addition, we have established a comprehensive business continuity plan which is designed to ensure that we are able to maintain all aspects of our key business processes functioning in the midst of certain disruptive events, including any disruptions to or breaches of our information technology systems. Our business continuity plan is routinely tested and evaluated for adequacy. Despite these safeguards, disruptions to and breaches of our information technology systems are possible. Because we rely on our technology systems for many critical functions, including connecting with our customers, if such systems were to fail or become outmoded, we may experience a significant disruption in our operations and in the business we receive and process, which could adversely affect our results of operations and financial condition.
Although we have experienced no known or threatened cases involving unauthorized access to our information technology systems and data or unauthorized appropriation of such data to date, we have no assurance that such technology breaches will not occur in the future.
Our success will depend on our ability to maintain and enhance effective operating procedures and internal controls and our Enterprise Risk Management (“ERM”) program.
Operational risk and losses can result from, among other things, fraud, errors, failure to document transactions properly or to obtain proper internal authorization, failure to comply with regulatory requirements, information technology failures, failure to appropriately transition new hires or external events. We continue to enhance our operating procedures and internal controls (including information technology initiatives and controls over financial reporting) to effectively support our business and our regulatory and reporting requirements. Our management does not expect that our disclosure controls or our internal controls will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. As a result of the inherent limitations in all control systems, no evaluation of controls can provide absolute

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assurance that all control issues and instances of fraud, if any, within the company have been detected. These inherent limitations include the realities that judgments in decision making can be faulty, and that breakdowns can occur because of simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons or by collusion of two or more people. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, controls may become inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate. As a result of the inherent limitations in a cost-effective control system, misstatement due to error or fraud may occur and not be detected. Accordingly, our disclosure controls and procedures are designed to provide reasonable, not absolute, assurance that our goals are met. Any ineffectiveness in our controls or procedures could have a material adverse effect on our business.
The NAIC has increased its focus on risks within an insurer’s holding company system that may pose enterprise risk to the insurer. In 2010, the NAIC adopted amendments to its Model Insurance Holding Company System Regulatory Act and Regulation, which include, among other amendments, a requirement for the ultimate controlling person to file an enterprise risk report. In 2012, the NAIC adopted the ORSA Model Act, which requires domestic insurers to maintain a risk management framework and establishes a legal requirement for domestic insurers to conduct an ORSA in accordance with the NAIC’s ORSA Guidance Manual. The ORSA Model Act also provides that, no more than once a year, an insurer’s domiciliary regulator may request that an insurer submit an ORSA summary report, or any combination of reports that together contain the information described in the ORSA Guidance Manual, applicable to the insurer and/or the insurance group of which it is a member. We operate within an ERM framework designed to assess and monitor our risks. However, there can be no assurance that we can effectively review and monitor all risks or that all of our employees will operate within the ERM framework. There can be no assurance that our ERM framework will result in us accurately identifying all risks and accurately limiting our exposures based on our assessments.
Our business is dependent upon insurance and reinsurance brokers and intermediaries, and the loss of important broker relationships could materially adversely affect our ability to market our products and services.
We market our insurance and reinsurance products primarily through brokers and intermediaries. We derive a significant portion of our business from a limited number of brokers. During 2015, approximately 13.1% and 15.3% of our gross premiums written were generated from or placed by Aon Corporation and its subsidiaries and Marsh & McLennan Companies and its subsidiaries, respectively. No other broker and no one insured or reinsured accounted for more than 10% of gross premiums written for 2015. Some of our competitors have higher financial strength ratings, offer a larger variety of products, set lower prices for insurance coverage, offer higher commissions and/or have had longer term relationships with the brokers we use than we have. This may adversely impact our ability to attract and retain brokers to sell our insurance products or brokers may increasingly promote products offered by other companies. The failure or inability of brokers to market our insurance products successfully, or loss of all or a substantial portion of the business provided by these brokers, could have a material adverse impact on our business, financial condition and results of operations.
We could be materially adversely affected to the extent that managing general agents, general agents and other producers exceed their underwriting authorities or if our agents, our insureds or other third parties commit fraud or otherwise breach obligations owed to us.
For certain business conducted by our insurance group, following our underwriting, financial, claims and information technology due diligence reviews, we authorize managing general agents, general agents and other producers to write business on our behalf within underwriting authorities prescribed by us. In addition, we delegate the underwriting of a significant percentage of our primary new insurance written to certain mortgage lenders. Under this delegated underwriting program, the approved customer may determine whether mortgage loans meet our mortgage insurance program guidelines and commit us to issue mortgage insurance. We rely on the underwriting controls of these agents to write business within the underwriting authorities provided by us. Although we monitor such business on an ongoing basis, our monitoring efforts may not be adequate or our agents may exceed their underwriting authorities or otherwise breach obligations owed to us. In addition, our agents, our insureds or other third parties may commit fraud or otherwise breach their obligations to us. To the extent that our agents, our insureds or other third parties exceed their underwriting authorities, commit fraud or otherwise breach obligations owed to us in the future, our financial condition and results of operations could be materially adversely affected.

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We are exposed to credit risk in certain of our business operations.
In addition to exposure to credit risk related to our investment portfolio, reinsurance recoverables and reliance on brokers and other agents (each discussed elsewhere in this section), we are exposed to credit risk in other areas of our business related to policyholders. We are exposed to credit risk in our insurance group’s surety unit where we guarantee to a third party that our policyholder will satisfy certain performance or financial obligations. If our policyholder defaults, we may suffer losses and be unable to be reimbursed by our policyholder. We are exposed to credit risk in our insurance group’s construction and national accounts units where we write large deductible insurance policies. Under these policies, we are typically obligated to pay the claimant the full amount of the claim (shown as “contractholder payables” on our consolidated balance sheets). We are subsequently reimbursed by the policyholder for the deductible amount (shown as “contractholder receivables” on our consolidated balance sheets), which can be a set amount per claim and/or an aggregate amount for all covered claims. As such, we are exposed to credit risk from the policyholder. We are also exposed to credit risk from policyholders on smaller deductibles in other insurance group lines, such as healthcare and excess and surplus casualty. Additionally, we write retrospectively rated policies (i.e., policies in which premiums are adjusted after the policy period based on the actual loss experience of the policyholder during the policy period). In this instance, we are exposed to credit risk to the extent the adjusted premium is greater than the original premium. While we generally seek to mitigate this risk through collateral agreements that require the posting of collateral in such forms as cash and letters of credit from banks, our efforts to mitigate the credit risk that we have to our policyholders may not be successful. Although we have not experienced any material credit losses to date, an increased inability of our policyholders to meet their obligations to us could have a material adverse effect on our financial condition and results of operations.
Our investment performance may affect our financial results and ability to conduct business.
Our operating results depend in part on the performance of our investment portfolio. A significant portion of cash and invested assets we manage consists of fixed maturities (74.1% as of September 30, 2016). Although our current investment guidelines and approach stress preservation of capital, market liquidity and diversification of risk, our investments are subject to market-wide risks and fluctuations. In addition, we are subject to risks inherent in particular securities or types of securities, as well as sector concentrations. Changing market conditions could materially affect the future valuation of securities in our investment portfolio, which could cause us to record an impairment loss on some portion of those securities on our financial statements. We may not be able to realize our investment objectives, which could have a material adverse effect on our financial results. In the event that we are unsuccessful in correlating our investment portfolio with our expected insurance and reinsurance liabilities, we may be forced to liquidate our investments at times and prices that are not optimal, which could have a material adverse effect on our financial results and ability to conduct our business.
Foreign currency exchange rate fluctuation may adversely affect our financial results.
We write business on a worldwide basis, and our results of operations may be affected by fluctuations in the value of currencies other than the U.S. Dollar. The primary foreign currencies in which we operate are the Euro, the British Pound Sterling and the Canadian Dollar. Changes in foreign currency exchange rates can reduce our revenues, increase our liabilities and costs and cause fluctuations in the valuation of our investment portfolio. We may therefore suffer losses solely as a result of exchange rate fluctuations. In order to mitigate our exposure to foreign currency fluctuations in our net insurance liabilities, we have invested and expect to continue to invest in securities denominated in currencies other than the U.S. Dollar. In addition, we may replicate investment positions in foreign currencies using derivative financial instruments. Net foreign exchange losses, excluding amounts reflected in the “other” segment and recorded in the statement of income, were $3.8 million for the nine months ended September 30, 2016, compared to net foreign exchange gains of $60.3 million for the nine months ended September 30, 2015. Changes in the value of investments due to foreign currency rate movements are reflected as a direct increase or decrease to shareholders’ equity and are not included in the statement of income. We have chosen not to hedge certain currency risks on capital contributed to certain subsidiaries, including to Arch Insurance Europe held in British Pounds Sterling, and may continue to choose not to hedge our currency risks. There can be no assurances that arrangements to match projected liabilities in foreign currencies with investments in the same currencies or derivative financial instruments will mitigate the negative impact of exchange rate fluctuations, and we may suffer losses solely as a result of exchange rate fluctuations.
We may be adversely affected by changes in economic conditions, including interest rate changes.
Our operating results are affected by, and we are exposed to, significant financial and capital markets risk, including changes in interest rates, real estate values, foreign currency exchange rates, market volatility, the performance of the

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economy in general, the performance of our investment portfolio and other factors outside our control. Interest rates are highly sensitive to many factors, including the fiscal and monetary policies of the U.S. and other major economies, inflation, economic and political conditions and other factors beyond our control. Although we attempt to take measures to manage the risks of investing in changing interest rate environments, we may not be able to mitigate interest rate sensitivity effectively. Despite our mitigation efforts, an increase in interest rates could have a material adverse effect on our book value.
In addition, our investment portfolio includes residential mortgage backed securities (“RMBS”). As of September 30, 2016, RMBS constituted approximately 3.6% of cash and invested assets managed by Arch. As with other fixed income investments, the fair value of these securities fluctuates depending on market and other general economic conditions and the interest rate environment. Changes in interest rates can expose us to changes in the prepayment rate on these investments. In periods of declining interest rates, mortgage prepayments generally increase and RMBS are prepaid more quickly, requiring us to reinvest the proceeds at the then current market rates. Conversely, in periods of rising rates, mortgage prepayments generally fall, preventing us from taking full advantage of the higher level of rates. However, economic conditions may curtail prepayment activity if refinancing is difficult, thus limiting prepayments on RMBS.
The residential mortgage market in the U.S. has experienced a variety of difficulties in certain underwriting periods and is only recently recovering from a period of severe home price depreciation. It is uncertain whether this recovery will continue. A decline or an extended flattening in residential property values may result in additional increases in delinquencies and losses on residential mortgage loans generally, especially with respect to any residential mortgage loans where the aggregate loan amounts (including any subordinate loans) are close to or greater than the related property values. These developments may have a significant adverse effect on the prices of loans and securities, including those in our investment portfolio. The situation continues to have wide ranging consequences, including downward pressure on economic growth and the potential for increased insurance and reinsurance exposures, which could have an adverse impact on our results of operations, financial condition, business and operations.
Mortgage insurance losses result when a borrower becomes unable to continue to make mortgage payments and the home of such borrower cannot be sold for an amount that covers unpaid principal and interest and the expenses of the sale. Deteriorating economic conditions increase the likelihood that borrowers will have insufficient income to pay their mortgages and can adversely affect housing values. In addition, natural disasters or other catastrophic events could result in increased claims if such events adversely affect the employment and income of borrowers and the value of homes. Any of these events or deteriorating economic conditions could cause our mortgage insurance losses to increase and adversely affect our results of operations and financial condition.
Our portfolio includes commercial mortgage backed securities (“CMBS”). At September 30, 2016, CMBS constituted approximately 3.9% of cash and invested assets managed by Arch. The commercial real estate market may experience price deterioration, which could lead to delinquencies and losses on commercial real estate mortgages.
Also, in each year, a significant portion of our mortgage insurance premiums will be from mortgage insurance written in prior years. Accordingly, the length of time insurance remains in force, referred to as persistency, is a significant driver of mortgage insurance revenues. Factors affecting persistency include: current mortgage interest rates compared to those rates on mortgages subject to our insurance in force, which affects the likelihood of the insurance in force to be subject to lapse due to borrower refinancing; the amount of home equity, as homeowners with more equity in their homes can generally more readily move to a new residence or refinance their existing mortgage; and mortgage insurance cancellation policies of mortgage investors and the cancellation of borrower-paid mortgage insurance, either upon request of the borrower or as required by law based upon the amortization of the loan. If these or other factors cause the length of time our mortgage insurance policies remain in force to decline, our mortgage insurance revenues could be adversely affected.
Significant, continued volatility in financial markets, changes in interest rates, a lack of pricing transparency, decreased market liquidity, declines in equity prices and the strengthening or weakening of foreign currencies against the U.S. Dollar, individually or in tandem, could have a material adverse effect on our results of operations, financial condition or cash flows through realized losses, impairments and changes in unrealized positions.
The determination of the amount of allowances and impairments taken on our investments is highly subjective and could materially impact our results of operations or financial position.
On a quarterly basis, we perform reviews of our investments to determine whether declines in fair value below the cost basis are considered other-than-temporary in accordance with applicable accounting guidance regarding the recognition and

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presentation of other-than-temporary impairments. The process of determining whether a security is other-than-temporarily impaired requires judgment and involves analyzing many factors. These factors include: an analysis of the liquidity, business prospects and overall financial condition of the issuer; the time period in which there was a significant decline in value; the significance of the decline; and the analysis of specific credit events. We evaluate the unrealized losses of our equity securities by issuer and determine if we can forecast a reasonable period of time by which the fair value of the securities would increase and we would recover our cost. If we are unable to forecast a reasonable period of time in which to recover the cost of our equity securities, we record a net impairment loss in earnings equivalent to the entire unrealized loss. There can be no assurance that our management has accurately assessed the level of impairments taken and allowances reflected in our financial statements. Furthermore, additional impairments may need to be taken or allowances provided for in the future. Historical trends may not be indicative of future impairments or allowances.
Certain of our investments are illiquid and are difficult to sell, or to sell in significant amounts at acceptable prices, to generate cash to meet our needs.
Our investments in certain securities, including certain fixed income and structured securities, investments in funds accounted for using the equity method, other alternative investments and strategic investments in joint ventures such as Watford Re and others, may be illiquid due to contractual provisions or investment market conditions. If we require significant amounts of cash on short notice in excess of anticipated cash requirements, then we may have difficulty selling these investments in a timely manner or may be forced to sell or terminate them at unfavorable values.
We may require additional capital in the future, which may not be available or be available only on unfavorable terms.
We monitor our capital adequacy on a regular basis. The capital requirements of our business depend on many factors, including regulatory and rating agency requirements, our ability to write new business successfully and to establish premium rates and reserves at levels sufficient to cover losses. To the extent that our existing capital is insufficient to fund our future operating requirements and/or cover claim losses, we may need to raise additional funds through financings or limit our growth. Any equity or debt financing, if available at all, may be on terms that are unfavorable to us. The availability and terms of debt financing will depend on our credit ratings by credit ratings agencies, which are outside our control. In the case of equity financings, dilution to our shareholders could result, and, in any case, such securities may have rights, preferences and privileges that are senior to those of our outstanding securities. Disruptions, uncertainty or volatility in the capital and credit markets may also limit our access to capital required to operate our business. Such market conditions may limit our ability to access the capital necessary to develop our business and replace, in a timely manner, our loan and letters of credit facilities upon maturity. As such, we may be forced to delay raising capital or bear an unattractive cost of capital which could decrease our profitability and significantly reduce our financial flexibility. If we are not able to obtain adequate capital, our business, results of operations and financial condition could be adversely affected. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources—Liquidity and Capital Resources,” in our 2015 Form 10-K.
The loss of our key employees or our inability to retain them could negatively impact our business.
Our success has been, and will continue to be, dependent on our ability to retain the services of our existing key executive officers and to attract and retain additional qualified personnel in the future. The pool of talent from which we actively recruit is limited. Although, to date, we have not experienced difficulties in attracting and retaining key personnel, the inability to attract and retain qualified personnel could have a material adverse effect on our financial condition and results of operations. In addition, our underwriting staff is critical to our success in the production of business. While we do not consider any of our key executive officers or underwriters to be irreplaceable, the loss of the services of our key executive officers or underwriters or the inability to hire and retain other highly qualified personnel in the future could delay or prevent us from fully implementing our business strategy which could affect our financial performance.
Certain employees of our Bermuda operations are required to obtain work permits before engaging in a gainful occupation in Bermuda. Required work permits may not be granted or may not remain in effect.
Under Bermuda law, only persons who are Bermudians, spouses of Bermudians, holders of a permanent resident’s certificate, holders of a working resident’s certificate or persons who are exempt pursuant to the Incentives for Job Makers Act 2011, as amended (the “IJM Act”) (“exempted persons”), may engage in gainful occupation in Bermuda without a work permit issued by the Bermuda Government. Our success may depend in part on the continued services of key employees in Bermuda. Save for the CEO and other “chief” officer positions (where the advertising requirement is automatically waived)

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or where specifically waived, a work permit will be granted or extended only upon showing that, after proper public advertisement, no exempted person is available who meets the minimum requirements of the position. A work permit is issued with an expiry date of up to five years, and no assurances can be given that any work permit will be issued or, if issued, extended upon the expiration of the relevant term. However, based on current policy, it is unlikely that initial or extension applications in respect of persons holding “chief” officer positions will be denied. We have been designated by the Bermuda Government under the IJM Act as a company whose senior executives can be exempt from work permit control. This designation will remain in force provided we continue to meet the criteria for such designation under the IJM Act. All of our key officers in Bermuda are exempted persons. If our designation under the IJM Act is revoked, certain of our key officers will require work permits. We also have other key positions in Bermuda held by persons who hold work permits subject to extension. If work permits are not obtained or extended for our key employees, we could lose their services, which could materially affect our business.
Our information technology systems may be unable to meet the demands of customers.
Our information technology systems service our insurance portfolios. Accordingly, we are highly dependent on the effective operation of these systems. While we believe that the systems are adequate to service our insurance portfolios, there can be no assurance that they will operate in all manners in which we intend or possess all of the functionality required by customers currently or in the future.
Our customers, especially our mortgage insurance customers, require that we conduct our business in a secure manner, electronically via the Internet or via electronic data transmission. We must continually invest significant resources in establishing and maintaining electronic connectivity with customers. In order to integrate electronically with new customers in the mortgage insurance industry, we require electronic connections between our systems and those of the industry’s largest mortgage servicing systems and leading loan origination systems. Arch MI U.S. currently possesses connectivity with certain of these external systems, but there is no assurance that such connectivity is sufficient and we are undertaking new electronic integration efforts with third-party loan servicing and origination systems. Such efforts could significantly delay entry into certain markets or customers as the electronic integration process requires time and effort to complete. Our business, financial condition and operating results may be adversely affected if we do not possess or timely acquire the requisite set of electronic integrations necessary to keep pace with the technological demands of customers. See also “—Technology breaches or failures, including but not limited to, those resulting from a malicious cyber attached on us or our business partners and service providers, could disrupt or otherwise negatively impact our business.”
If we are unable to continue to implement our U.S. mortgage insurance growth strategy through the UGC Acquisition or otherwise, our financial results could be adversely affected.
On January 30, 2014, our U.S.-based subsidiaries completed the acquisition of CMG Mortgage Insurance Company (renamed Arch MI U.S.). Prior to the acquisition, CMG Mortgage Insurance Company had been a GSE-approved mortgage insurance company limited to only credit union customers. Our growth strategy, which we are now in the third year of implementing, is to broaden Arch MI U.S.’s customer base to national and regional banks and other mortgage lenders, while maintaining and increasing Arch MI U.S.’s share of the mortgage insurance credit union market. The failure to consummate the UGC Acquisition may adversely affect our ability to implement our growth strategy in the mortgage insurance industry. The ultimate success of our strategy will depend upon, among other factors, our ability to: continue to maintain and develop business relationships with national and regional banks and other mortgage lenders, particularly the large lenders that originate a significant majority of low down payment mortgages in the U.S., and obtain their approvals as an authorized mortgage insurance provider; continue to develop and implement necessary e-commerce connectivity with new customers’ mortgage origination systems; maintain and expand business relationships with existing credit union customers; and retain and attract a capable workforce at Arch MI U.S. necessary to implement our U.S. mortgage insurance strategy.
Because of these factors, economic conditions and competitive dynamics, the extent to which we will be successful implementing our U.S. mortgage insurance strategy is uncertain. If we are unable to continue to attract new, and retain existing, customers and process business efficiently and reliably, our results of operations and financial condition could be adversely affected.

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The UGC Acquisition is subject to receipt of consent or approval from governmental authorities that could delay or prevent the completion of the UGC Acquisition or that could cause the abandonment of the UGC Acquisition.
To complete the UGC Acquisition, we need to obtain approvals or consents from, and make filings with, certain applicable governmental authorities. While we believe that we will receive all required approvals for the UGC Acquisition, there can be no assurance as to the receipt or timing of receipt of these approvals. A substantial delay in obtaining any required authorizations, approvals or consents, or the imposition of unfavorable terms, conditions or restrictions contained in such authorizations, approvals or consents, could prevent the completion of the UGC Acquisition or have an adverse effect on the anticipated benefits of the UGC Acquisition, thereby adversely impacting our business, financial condition or results of operations.
The proposed UGC Acquisition may expose us to unknown liabilities.
Because we have agreed to acquire all the outstanding equity interests of United Guaranty, our acquisition will generally be subject to all of United Guaranty’s liabilities. If there are unknown liabilities or other obligations, including contingent liabilities, our business could be materially affected. We may learn additional information about United Guaranty that adversely affects us, such as unknown liabilities, issues that could affect our ability to comply with the Sarbanes-Oxley Act or issues that could affect our ability to comply with other applicable laws.
The ultimate performance of the mortgage insurance portfolio we acquired in connection with our acquisition of Arch MI U.S. remains uncertain.
CMG Mortgage Insurance Company incurred significant losses during the period 2008 to 2012. At the closing of the acquisition, CMG Mortgage Insurance Company had insurance in force of approximately $21.5 billion. The ultimate performance of the portfolio we acquired remains uncertain and subject to factors outside of our control, including, among others, changes in unemployment, home prices and interest rates in the U.S. Deteriorating economic conditions in the U.S. could adversely affect the performance of our acquired U.S. mortgage insurance portfolio and could adversely affect our results of operations and financial condition. Pursuant to the agreement related to the acquisition, we may pay additional consideration to the former owners of CMG Mortgage Insurance Company based on the actual results of CMG Mortgage Insurance Company’s pre-closing portfolio over an agreed upon period.
The costs savings we realize from our services agreement with PMI is declining and the provision of services to PMI could hinder our ability to execute our U.S. mortgage insurance business plan.
Pursuant to a multi-year services agreement (the “Services Agreement”) with PMI Mortgage Insurance Co., in Rehabilitation (“PMI”), we perform or assist with many of PMI’s run-off operations. We believe that this arrangement allows us to leverage our operations and reduce costs associated with our technology systems and other mortgage insurance operations. The level of services required by PMI is decreasing and will continue to decrease. If the level of services required by PMI is less than anticipated or PMI terminates the Services Agreement, we may charge PMI a lower than anticipated portion of our own fixed costs and we may not achieve the cost savings anticipated. In addition, our performance under the Services Agreement could distract us from the execution of our U.S. mortgage insurance business plan. If we fail to perform services or fail to meet specified performance standards, PMI may terminate the Services Agreement and could exercise other remedies, including, under certain circumstances, the release to PMI of source code relating to our technology systems. PMI’s insureds, with whom we deal on PMI’s behalf, could seek remedies against us. If any of these events were to occur, our financial condition and results of operations could be adversely affected.
If the volume of low down payment mortgage originations declines, the amount of mortgage insurance we write in the U.S. could decline, which would reduce our mortgage insurance revenues.
The size of the U.S. mortgage insurance market depends in large part upon the volume of low down payment home mortgage originations. Factors affecting the volume of low down payment mortgage originations include, among others: restrictions on mortgage credit due to stringent underwriting standards and liquidity issues affecting lenders; changes in mortgage interest rates and home prices, and other economic conditions in the U.S. and regional economies; population trends, including the rate of household formation; and U.S. government housing policy. A decline in the volume of low down payment home mortgage originations could decrease demand for mortgage insurance, decrease our U.S. new insurance written and reduce mortgage insurance revenues.

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If the role of the GSEs in the U.S. housing market changes, or if the GSEs change other policies or practices, the amount of insurance that we write could decrease.
The GSEs are the beneficiaries of the significant majority of the insurance policies we issue as a result of their purchases, statutorily required or otherwise, of qualifying mortgage loans from lenders or investors. Accordingly, changes in the following or other GSE policies could significantly affect our U.S. mortgage insurance operations: the amount of loans purchased by the GSEs that require mortgage insurance; the level of private mortgage insurance coverage lenders select when private mortgage insurance is used as the required credit enhancement on low down payment mortgages; GSE pricing, including the amount of loan level price adjustments and guaranty fees that the GSEs assess on loans that require mortgage insurance, which could reduce the demand for our products; loan eligibility standards for loans purchased by the GSEs, which impact the conforming mortgage loan origination market, including loan quality and availability; terms on which mortgage insurance coverage can be canceled before reaching the cancellation thresholds required by law; purchases by the GSEs of credit enhancements other than mortgage insurance; whether the GSEs influence mortgage lenders’ selection of mortgage insurers providing coverage; and the size of loans that are eligible for purchase or guaranty by the GSEs.
The charters of the GSEs require credit enhancement for low down payment mortgages in order for such loans to be eligible for purchase or guarantee by the GSEs. Lenders have typically used mortgage insurance to satisfy GSE charter credit enhancement requirements. If the charters of the GSEs were amended to change or eliminate the acceptability of private mortgage insurance, our new mortgage insurance business could decline significantly. The GSEs have various loan purchase programs that allow for different levels of mortgage insurance coverage. Under “charter coverage,” certain lenders may choose a mortgage insurance coverage percentage that is less than the GSEs’ “standard coverage” and only the minimum required by the GSEs’ charters. The significant majority of Arch MI U.S.’s risk written in 2015 was on loans with GSE standard coverage. We charge higher premium rates for higher coverage percentages. To the extent that lower coverage is selected on GSE loans we insure in the future, Arch MI U.S.’s revenue would be reduced.
The GSEs are operating under the conservatorship of the Federal Housing Finance Agency. In conservatorship, the GSEs could change their practices with respect to mortgage insurance or individual mortgage insurers, which could affect mortgage insurance coverage required by the GSEs on mortgage loans or Arch MI U.S.’s status as an eligible mortgage insurer. In 2015, the GSEs expanded their mortgage credit risk transfer (CRT) programs; such transactions in 2015 generally did not include the purchase of private mortgage insurance from U.S. private mortgage insurers. Rather, these transactions led to increased opportunities for multiline property casualty reinsurers and capital markets participants. The GSEs’ practices also may be impacted by legislative or regulatory changes. The U.S. Congress is examining the role of the GSEs in the U.S. housing market and may implement structural and other changes to the GSEs. Since 2011, a number of legislative proposals have been introduced with regard to the future role of the GSEs, the structure of the secondary market and the role of the Federal government within the mortgage market. We cannot predict whether any of these proposals will become law or the impact any future legislation will have on our U.S. mortgage insurance operations.
As a result of the foregoing issues, it is uncertain what role the GSEs and the mortgage insurance industry will play in the housing finance system in the future or the impact of any such changes on Arch MI U.S. Changes in the roles of the GSEs or their practices could have a material adverse effect on our U.S. mortgage insurance business.
The premiums we charge for mortgage insurance on insured loans and the associated investment income may not be adequate to compensate for future losses from these loans.
We set premiums at the time a policy is issued based upon our expectations regarding likely performance over the life of insurance coverage. We generally cannot cancel mortgage insurance coverage or adjust renewal premiums during the life of a mortgage insurance policy. As a result, losses from higher than anticipated claims generally cannot be offset by premium increases on policies in force or mitigated by non-renewal or cancellation of insurance coverage. The premiums we charge on our insurance in force and the associated investment income may not be adequate to compensate us for the risks and costs associated with the insurance coverage provided to customers. An increase in the number or size of claims, compared to what we anticipate, could adversely affect Arch MI U.S.’s results of operations and financial condition.

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New GSE eligibility requirements for mortgage insurers could require us to contribute additional capital to Arch MI U.S. in the future, and could negatively impact our results of operations and financial condition, or reduce our operating flexibility.
Pursuant to their charters, the GSEs purchase low down payment loans insured by mortgage insurers that they determine to be qualified. Substantially all of Arch MI U.S.’s insurance written has been for loans sold to the GSEs. Fannie Mae and Freddie Mac have each published comprehensive requirements to become and remain a qualified mortgage insurer. In April 2015, the GSEs published comprehensive, revised requirements, known as the Private Mortgage Insurer Eligibility Requirements or “PMIERs.” The PMIERs became effective December 31, 2015 and apply to Arch MI U.S., which is a GSE-approved mortgage insurer. In addition to extensive requirements related to the operation of our mortgage insurance business, the PMIERs include revised financial requirements for mortgage insurers. These financial requirements require a mortgage insurer’s available assets, which generally include only the most liquid assets of an insurer, to meet or exceed “minimum required assets” as of each quarter end. Minimum required assets are calculated from PMIERs tables with several risk dimensions (including origination year, original loan-to-value and original credit score of performing loans, and the delinquency status of non-performing loans) and are subject to a minimum amount.
No later than March 1, 2016, mortgage insurers were to certify to the GSEs that they met all of the requirements of the PMIERs or identify specific requirements that they do not meet. Mortgage insurers that have not met the financial requirements of the PMIERs by June 30, 2017 will be subject to remediation actions by the GSEs. Arch MI U.S. satisfied the PMIERs’ financial requirements as of September 30, 2016. However, the available assets required to satisfy the revised financial requirements of the PMIERs at any point in time will be affected by many factors, including: macro-economic conditions, including the future performance of the housing market, which could negatively affect the performance of our mortgage insurance portfolio (including its loss development); the size and composition of Arch MI U.S.’s mortgage insurance portfolio at the applicable time of measurement; and the manner in which the PMIERs are interpreted and applied by the GSEs, including their determinations of the amount of risk ceded to reinsurers that Arch MI U.S. may deduct in its calculation of minimum required assets.
As a result of these and other factors, the amount of capital required to satisfy the PMIERs may vary significantly over time. Primarily as a result of Arch MI U.S.’s projected insurance portfolio growth in 2016 and thereafter, we may be required to contribute additional capital in the future to Arch MI U.S. to satisfy the PMIERs’ financial requirements. We cannot be sure that the capital required will not be materially higher than we anticipate or that we will be able to meet the capital requirements on an acceptable timetable, if at all. Further, increases in Arch MI U.S.’s capital in order to satisfy the PMIERs may decrease Arch MI U.S.’s return on capital unless it raises premiums, which may not be feasible due to competition.
There also can be no assurance that the GSEs will not make the PMIERs’ financial requirements more onerous in the future. The PMIERs provide that the tables of factors that determine minimum required assets may be updated to reflect changes in risk characteristics and macroeconomic conditions.
The PMIERs contain extensive requirements relating to the operation of our mortgage insurance business, including imposing additional operational requirements in areas such as claim processing, loss mitigation, underwriting, quality control, and reporting. The requirements in the PMIERs have caused us to make changes to our business practices and incur additional costs in order to achieve and maintain compliance with the PMIERs.
Under the PMIERs, Arch MI U.S. is deemed to be a “newly-approved insurer.” As a result, until January 2017, Arch MI U.S. is subject to additional PMIER requirements. See “Regulation—U.S. Insurance Regulation—GSE Qualified Mortgage Insurer Requirements,” in our 2015 Form 10-K. While we intend to comply with these requirements, there can be no assurance that the GSEs will continue to treat Arch MI U.S. as an eligible mortgage insurer. The GSEs, as major purchasers of conventional mortgage loans in the United States, are the primary beneficiaries of Arch MI U.S.’s mortgage insurance coverage. If either or both of the GSEs were to cease to consider Arch MI U.S. an eligible mortgage insurer and, therefore, cease accepting our mortgage insurance products, our results of operations and financial condition would be adversely affected.
The mix of business we write affects Arch MI U.S.’s losses and will affect its future compliance with the final PMIERs financial requirements.
Our mortgage insurance portfolio includes loans with loan-to-value ratios exceeding 95%, loans with FICO scores below 620, adjustable rate mortgages, or ARMs, reduced documentation loans and less-than-A quality loans. Even when housing

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values are stable or rising, we expect higher default and claim rates for high loan-to-value loans, loans with lower FICO scores, ARMs, reduced documentation loans, and less-than-A quality loans. Although we attempt to incorporate the higher default and claim rates associated with these loans into our underwriting and pricing models, there can be no assurance that the premiums earned and the associated investment income will adequately compensate us for future losses from these loans. From time to time, we change the types of loans that we insure and the requirements under which we insure them. In 2015, we modestly expanded our underwriting guidelines and we expect this trend to continue.
The geographic mix of Arch MI U.S.’s business could increase losses and harm our financial performance. We are affected by economic downturns and other events in specific regions of the United States where a large portion of our U.S. mortgage insurance business is concentrated. As of September 30, 2016, 5.4% of Arch MI U.S.’s primary risk-in-force was located in Florida, 5.7% was located in Texas and 8.5% was located in California. Historically, Arch MI U.S. has experienced higher levels of losses in Florida and California.
Arch MI U.S.’s minimum required assets under the PMIERs will be determined, in part, by the particular risk profiles of the loans it insures. If, absent other changes, Arch MI U.S.’s mix of business changes to include more loans with higher loan-to-value ratios or lower credit scores, it will have a higher minimum required asset amount under the PMIERs and, accordingly, be required to hold more capital in order to maintain GSE eligibility.
State regulation of mortgage insurers could in the future cause Arch MI U.S. to need additional capital to fund its operations or expand its business and, if we are unable or unwilling to provide it with such capital, it may be unable to operate or expand, which could adversely affect our financial condition or results of operations.
Arch MI U.S. may require additional capital to support its growth and comply with regulatory and GSE requirements. Arch MI U.S.’s principal regulator is the Wisconsin Office of the Commissioner of Insurance. Under Wisconsin law, as well as that of 15 other states, a mortgage insurer must maintain minimum statutory capital relative to its risk-in-force in order for the mortgage insurer to continue to write new business. While formulations of minimum capital vary by jurisdiction, the most common measure applied allows for a maximum permitted risk to capital ratio of 25 to 1. Wisconsin and certain other states, including California and Illinois, apply a substantially similar requirement referred to as minimum policyholders position.
Potential changes to state mortgage insurance regulations could reduce Arch MI U.S.’s profitability and its ability to compete with credit enhancement alternatives to mortgage insurance.
The NAIC, which reviews state insurance laws and regulations, has established a Mortgage Guaranty Insurance Working Group (“Working Group”) to make recommendations to the NAIC’s Financial Condition Committee regarding changes to the NAIC’s Mortgage Guaranty Insurance Model Act. The Working Group has released a draft Model Act which includes proposed changes to minimum statutory capital requirements.
If the NAIC revises the Model Act, some state legislatures are likely to enact and implement part or all of the revised provisions. While we cannot predict the effect that any NAIC recommendations or future legislation may have on Arch MI U.S., such changes could reduce Arch MI U.S.’s profitability and its ability to compete with credit enhancement alternatives to mortgage insurance, which could adversely affect our financial condition or results of operations.
If servicers fail to adhere to appropriate servicing standards or experience disruptions to their businesses, our mortgage insurance operations could be adversely affected.
Our mortgage insurance policies require our customers and their servicers to timely submit premium and reports and utilize commercially reasonable efforts to limit and mitigate loss when a loan is in default. If one or more servicers failed to adhere to these requirements, our financial results could be adversely affected. Without reliable servicing, we may be unable to process new mortgage insurance business or service existing insured loans.
The implementation of the Basel III Capital Accord may adversely affect the use of mortgage insurance by certain banks.
In 1988, the Basel Committee on Banking Supervision developed the Basel Capital Accord, “Basel I,” which set out international benchmarks for assessing banks’ capital adequacy requirements. In 2005, the Basel Committee issued “Basel II,” which, among other things, governs the capital treatment of mortgage insurance purchased and held on balance sheet by banks in respect of their origination and securitization activities. In July 2013, federal agencies approved publication of final regulatory capital rules, called the “Basel III Rules.” With certain exceptions, the Basel III Rules became effective on

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January 1, 2014. If further implementation of the Basel III Rules increases the capital requirements of banking organizations with respect to the residential mortgages we insure or does not provide sufficiently favorable treatment for the use of mortgage insurance, it could adversely affect the demand for mortgage insurance. In December 2015, the Basel Committee proposed for comment a revised capital framework that would assign risk-weights for mortgage assets based on the loan-to-value ratio of the loan at origination, without consideration of mortgage insurance. If that proposal is finalized as proposed, U.S. federal regulators could take a similar approach for U.S. institutions, which could adversely affect the demand for mortgage insurance.
Some of the provisions of our bye-laws and our shareholders agreement may have the effect of hindering, delaying or preventing third party takeovers or changes in management initiated by shareholders. These provisions may also prevent our shareholders from receiving premium prices for their shares in an unsolicited takeover.
Some provisions of our bye-laws could have the effect of discouraging unsolicited takeover bids from third parties or changes in management initiated by shareholders. These provisions may encourage companies interested in acquiring us to negotiate in advance with our board of directors, since the board has the authority to overrule the operation of several of the limitations.
Among other things, our bye-laws provide: for a classified board of directors, in which the directors of the class elected at each annual general meeting holds office for a term of three years, with the term of each class expiring at successive annual general meetings of shareholders; that the number of directors is determined by the board from time to time by a vote of the majority of our board; that directors may be removed only for cause, and cause removal shall be deemed to exist only if the director whose removal is proposed has been convicted of a felony or been found by a court to be liable for gross negligence or misconduct in the performance of his or her duties; that our board has the right to fill vacancies, including vacancies created by an expansion of the board; and for limitations on a shareholder’s right to raise proposals or nominate directors at general meetings. Our bye-laws provide that certain provisions which may have anti-takeover effects may be repealed or altered only with prior board approval and upon the affirmative vote of holders of shares representing at least 65% of the total voting power of our shares entitled generally to vote at an election of directors.
The bye-laws also contain a provision limiting the rights of any U.S. person (as defined in section 7701(a)(30) of the Internal Revenue Code of 1986, as amended (the “Code”)) that owns shares of ACGL, directly, indirectly or constructively (within the meaning of section 958 of the Code), representing more than 9.9% of the voting power of all shares entitled to vote generally at an election of directors. The votes conferred by such shares of such U.S. person will be reduced by whatever amount is necessary so that after any such reduction the votes conferred by the shares of such person will constitute 9.9% of the total voting power of all shares entitled to vote generally at an election of directors. Notwithstanding this provision, the board may make such final adjustments to the aggregate number of votes conferred by the shares of any U.S. person that the board considers fair and reasonable in all circumstances to ensure that such votes represent 9.9% of the aggregate voting power of the votes conferred by all shares of ACGL entitled to vote generally at an election of directors. ACGL will assume that all shareholders (other than specified persons) are U.S. persons unless we receive assurance satisfactory to us that they are not U.S. persons.
Moreover, most states, including states in which our subsidiaries are domiciled, have laws and regulations that require regulatory approval of a change in control of an insurer or an insurer’s holding company. Where such laws apply to us and our subsidiaries, there can be no effective change in our control unless the person seeking to acquire control has filed a statement with the regulators and has obtained prior approval for the proposed change from such regulators. The usual measure for a presumptive change in control pursuant to these laws is the acquisition of 10% or more of the voting power of the insurance company or its parent, although this presumption is rebuttable. Consequently, a person may not acquire 10% or more of our common shares without the prior approval of insurance regulators in each state in which our subsidiaries are domiciled.
The bye-laws also provide that the affirmative vote of at least 66-2/3% of the outstanding voting power of our shares (excluding shares owned by any person (and such person’s affiliates and associates) that is the owner of 15% or more (a “15% Holder”) of our outstanding voting shares) shall be required for various corporate actions, including: merger or consolidation of the company into a 15% Holder; sale of any or all of our assets to a 15% Holder; the issuance of voting securities to a 15% Holder; or amendment of these provisions; provided, however, the supermajority vote will not apply to any transaction approved by the board.

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The provisions described above may have the effect of making more difficult or discouraging unsolicited takeover bids from third parties. To the extent that these effects occur, shareholders could be deprived of opportunities to realize takeover premiums for their shares and the market price of their shares could be depressed. In addition, these provisions could also result in the entrenchment of incumbent management.
Our operating insurance and reinsurance subsidiaries are subject to regulation in various jurisdictions, and violations of existing regulations or material changes in the regulation of their operations could adversely affect us.
Our insurance and reinsurance subsidiaries are subject to government regulation in each of the jurisdictions in which they are licensed or authorized to do business. Governmental agencies have broad administrative power to regulate many aspects of the insurance business, which may include trade and claim practices, accounting methods, premium rates, marketing practices, claims practices, advertising, policy forms, and capital adequacy. These agencies are concerned primarily with the protection of policyholders rather than shareholders. Governmental agencies may censure, impose fines, additional capital requirements or limitations on our operations, and/or impose criminal sanctions for violation of regulatory requirements. Moreover, insurance laws and regulations, among other things: establish solvency requirements, including minimum reserves and capital and surplus requirements; limit the amount of dividends, tax distributions, intercompany loans and other payments our insurance subsidiaries can make without prior regulatory approval; impose restrictions on the amount and type of investments we may hold; require assessments through guaranty funds to pay claims of insolvent insurance companies; and require participation in state-assigned risk plans which may take the form of reinsuring a portion of a pool of policies or the direct issuance of policies to insureds.
Our U.S. insurance and reinsurance subsidiaries write insurance and reinsurance in the U.S. These subsidiaries are subject to extensive regulation under state statutes which delegate regulatory, supervisory and administrative powers to state insurance commissioners. Such regulation generally is designed to protect policyholders rather than investors. Arch Insurance Canada writes insurance in Canada and Arch Re U.S., through a branch, writes reinsurance in Canada and each is subject to federal, as well as provincial and territorial, regulation in Canada.
In addition, virtually all U.S. states require insurers licensed to do business therein to bear a portion of contingent and incurred claim handling expenses and the unfunded amount of “covered” claim and unearned premium obligations of impaired or insolvent insurance companies, either up to the policy’s limit, the applicable guaranty fund covered claim obligation cap, or 100% of statutorily defined workers’ compensation benefits, subject to applicable deductibles. These obligations are funded by assessments, made on a retrospective, prospective or prefunded basis, which are levied by guaranty associations within the state, up to prescribed limits (typically 2% of “net direct written premium”), on all member insurers in the state on the basis of the proportionate share of the premiums written by member insurers in certain covered lines of business in which the impaired, insolvent or failed insurer was engaged. Accordingly, the total amount of assessments levied on us by the states in which we are licensed to write insurance may increase as we increase our premiums written. In addition, as a condition to the ability to conduct business in certain states (and within the jurisdiction of some local governments), insurance companies are subject to or required to participate in various premium or loss based insurance-related assessments, including mandatory (a/k/a “involuntary”) insurance pools, underwriting associations, workers’ compensation second-injury funds, reinsurance funds and other state insurance facilities. Although we may be entitled to take premium tax credit (or offsets), recover policy surcharges or include assessments in future premium rate structures for payments we make under these facilities, the effect of these assessments and insurance-related arrangements, or changes in them, could reduce our profitability in any given period or limit our ability to grow our business.
We are also subject to substantial regulation in other jurisdictions in which our subsidiaries and their branch offices conduct business, including the U.K., the EU Member States, Canada and Switzerland, and a number of our subsidiaries are subject to the financial and operational supervision of the PRA, FCA, OSFI or the CBOI.
We periodically review our corporate structure so that we can optimally deploy our capital. Changes in that structure require regulatory approval. Delays or failure in obtaining any of these approvals could limit the amount of insurance that we can write in the U.S.
If ACGL or any of our subsidiaries were to become subject to the laws of a new jurisdiction in which such entity is not presently admitted, ACGL or such subsidiary may not be in compliance with the laws of the new jurisdiction. In addition, we could, at any time and in any jurisdiction, face individual, group and class action lawsuits by our policyholders and others for alleged violations of applicable laws and regulations. Any such litigation or failure to comply with applicable laws could result in the imposition of significant restrictions on our ability to do business, and could also result in suspensions,

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injunctions, monetary damages, fines or other sanctions, any or all of which could adversely affect our financial condition and results of operations.
Our business is subject to risks related to litigation.
We may from time to time be subject to a variety of legal actions relating to our current and past business operations, including, but not limited to, disputes over coverage or claims adjudication, including claims alleging that we have acted in bad faith in the administration of claims by our policyholders, disputes with our agents, producers or network providers overcompensation and termination of contracts and related claims and disputes relating to certain businesses acquired or disposed of by us.
Multi-party or class action claims may present additional exposure to substantial economic, non-economic or punitive damage awards. The loss of even one of these claims, if it resulted in a significant damage award or a judicial ruling that was otherwise detrimental, could create a precedent in the industry that could have a material adverse effect on our results of operations and financial condition. This risk of potential liability may make reasonable settlements of claims more difficult to obtain. We cannot determine with any certainty what new theories of recovery may evolve or what their impact may be on our business.
Mortgage insurers have been involved in litigation alleging violations of the Real Estate Settlement Procedures Act of 1974 (“RESPA”) and the Fair Credit Reporting Act of 1970 (“FCRA”). RESPA generally precludes Arch MI U.S. from providing services or products to mortgage lenders free of charge, charging fees for services that are lower than their reasonable or fair market value, and paying fees for services that others provide that are higher than their reasonable or fair market value, in exchange for the referral of mortgage insurance Violations of the referral fee limitations of RESPA may be enforced by the federal agencies, state attorneys general and state insurance commissioners, as well as by private litigants in class actions. In the past, a number of lawsuits and regulatory orders issued by the CFPB have challenged the actions of mortgage insurers, alleging that the insurers violated RESPA by entering into captive reinsurance arrangements or providing products or services, including contract underwriting, to mortgage lenders at improperly reduced prices in return for the referral of mortgage insurance. See “Regulation—U.S. Insurance Regulation—Real Estate Settlement Procedures Act of 1974,” in our 2015 Form 10-K.
If our Bermuda principal operating subsidiary becomes subject to insurance statutes and regulations in jurisdictions other than Bermuda or if there is a change in Bermuda law or regulations or the application of Bermuda law or regulations, there could be a significant and negative impact on our business.
Arch Re Bermuda, our Bermuda insurance and reinsurance subsidiary, is a registered Bermuda Class 4 general business insurer and as a Class C long-term business insurer and has been designated as the Designated Insurer of the Arch Group for group supervision purposes. As such, it is subject to regulation and supervision in Bermuda. See “Regulation—Bermuda Insurance Regulation,” in our 2015 Form 10-K.
Bermuda’s statutes and regulations may restrict our ability to write insurance and reinsurance policies, distribute funds and pursue our investment strategy. We do not presently intend for Arch Re Bermuda to be admitted to do business in the U.S., U.K. or any jurisdiction other than Bermuda, although Arch Re Bermuda has been approved as a “certified reinsurer” in certain U.S. states that allow reduced collateral for reinsurance ceded to such reinsurers. We cannot assure you that insurance regulators in the U.S., U.K. or elsewhere will not review the activities of Arch Re Bermuda or its subsidiaries or agents and assert that Arch Re Bermuda is subject to such jurisdiction’s licensing requirements, or impose restrictions on Arch Re Bermuda as a condition for its being approved as a “certified reinsurer.”
Generally, Bermuda insurance statutes and regulations applicable to Arch Re Bermuda are less restrictive than those that would be applicable if they were governed by the laws of any states in the U.S. If in the future we become subject to any insurance laws of the U.S. or any state thereof or of any other jurisdiction, we cannot assure you that we would be in compliance with such laws or that complying with such laws would not have a significant and negative effect on our business.
The process of obtaining licenses is very time consuming and costly, and Arch Re Bermuda may not be able to become licensed in jurisdictions other than Bermuda should we determine it desirable to do so. The modification of the conduct of our business that would result if we were required or chose to become licensed in certain jurisdictions could significantly and negatively affect our financial condition and results of operations. In addition, our inability to comply with insurance statutes

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and regulations could significantly and adversely affect our financial condition and results of operations by limiting our ability to conduct business as well as subject us to penalties and fines.
Because Arch Re Bermuda is a Bermuda company, it is subject to changes in Bermuda law and regulation that may have an adverse impact on our operations, including through the imposition of tax liability or increased regulatory supervision. In addition, Arch Re Bermuda will be exposed to any changes in the political environment in Bermuda. The Bermuda insurance and reinsurance regulatory framework recently has become subject to increased scrutiny in many jurisdictions, including the U.K. While we cannot predict the future impact on our operations of changes in the laws and regulation to which we are or may become subject, any such changes could have a material adverse effect on our business, financial condition and results of operations.
If our Bermuda reinsurance subsidiary is unable to provide collateral to ceding companies, its ability to conduct business could be significantly and negatively affected.
Arch Re Bermuda is a registered Bermuda insurance company and is not licensed or admitted as an insurer in any jurisdiction in the U.S., although Arch Re Bermuda has been approved as a “certified reinsurer” in certain U.S. states that allow reduced collateral for reinsurance ceded to such reinsurers. Insurance regulations in the U.S. do not uniformly permit insurance companies to take credit for reinsurance obtained from unlicensed or non-admitted insurers on their statutory financial statements unless security is posted, and Arch Re Bermuda’s contracts generally require it to post a letter of credit or provide other security, even in U.S. states where it has been approved for reduced collateral. Although, to date, Arch Re Bermuda has not experienced any difficulties in providing collateral when required, if we are unable to post security in the form of letters of credit or trust funds when required, the operations of Arch Re Bermuda could be significantly and negatively affected.
ACGL is a holding company and is dependent on dividends and other payments from its operating subsidiaries, which are subject to dividend restrictions, to make payments, including the payment of debt service obligations and operating expenses we may incur and any payments of dividends, redemption amounts or liquidation amounts with respect to our preferred shares and common shares.
ACGL is a holding company whose assets primarily consist of the shares in our subsidiaries. Generally, ACGL depends on its available cash resources, liquid investments and dividends or other distributions from subsidiaries to make payments, including the payment of debt service obligations and operating expenses it may incur and any payments of dividends, redemption amounts or liquidation amounts with respect to our preferred shares and common shares, and to fund the share repurchase program. The ability of our regulated insurance and reinsurance subsidiaries to pay dividends or make distributions is dependent on their ability to meet applicable regulatory standards. In addition, the ability of our insurance and reinsurance subsidiaries to pay dividends to ACGL and to intermediate parent companies owned by ACGL could be constrained by our dependence on financial strength ratings from independent rating agencies. Our ratings from these agencies depend to a large extent on the capitalization levels of our insurance and reinsurance subsidiaries. We believe that ACGL has sufficient cash resources and available dividend capacity to service its indebtedness and other current outstanding obligations. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources—Liquidity and Capital Resources,” in our 2015 Form 10-K and 2016 Third Quarter Form 10-Q.
The enforcement of civil liabilities against us may be difficult.
We are a Bermuda company and some of our officers and directors are residents of various jurisdictions outside the U.S. All or a substantial portion of our assets and the assets of those persons may be located outside the U.S. As a result, it may be difficult for you to effect service of process within the U.S. upon those persons or to enforce in U.S. courts judgments obtained against those persons.
We have appointed National Registered Agents, Inc., New York, New York, as our agent for service of process with respect to actions based on offers and sales of securities made in the U.S. We have been advised by our special Bermuda legal counsel, Conyers Dill & Pearman Limited, that the U.S. and Bermuda do not currently have a treaty providing for reciprocal recognition and enforcement of judgments of U.S. courts in civil and commercial matters and that a final judgment for the payment of money rendered by a court in the U.S. based on civil liability, whether or not predicated solely upon the U.S. federal securities laws, would, therefore, not be automatically enforceable in Bermuda. We also have been advised by Conyers Dill & Pearman Limited that a final and conclusive judgment obtained in a court in the U.S. under which a sum of

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money is payable as compensatory damages (i.e., not being a sum claimed by a revenue authority for taxes or other charges of a similar nature by a governmental authority, or in respect of a fine or penalty or multiple or punitive damages) may be the subject of an action on a debt in the Supreme Court of Bermuda under the common law doctrine of obligation.
Such an action should be successful upon proof that the sum of money is due and payable, and without having to prove the facts supporting the underlying judgment, as long as: the court which gave the judgment had proper jurisdiction over the parties to such judgment; such court did not contravene the rules of natural justice of Bermuda; such judgment was not obtained by fraud; the enforcement of the judgment would not be contrary to the public policy of Bermuda; no new admissible evidence relevant to the action is submitted prior to the rendering of the judgment by the courts of Bermuda; and there is due compliance with the correct procedures under Bermuda law.
A Bermuda court may impose civil liability on us or our directors or officers in a suit brought in the Supreme Court of Bermuda against us or such persons with respect to a violation of U.S. federal securities laws, provided that the facts surrounding such violation would constitute or give rise to a cause of action under Bermuda law.
Our international business is subject to applicable laws and regulations relating to sanctions and foreign corrupt practices, the violation of which could adversely affect our operations.
We must comply with all applicable economic sanctions and anti-bribery laws and regulations of the U.S. and other foreign jurisdictions where we operate, including the U.K. and the European Community. U.S. laws and regulations applicable to us include the economic trade sanctions laws and regulations administered by the U.S. Department of the Treasury’s Office of Foreign Assets Control as well as certain laws administered by the U.S. Department of State. In addition, we are subject to the Foreign Corrupt Practices Act and other anti-bribery laws such as the U.K. Bribery Act that generally bar corrupt payments or unreasonable gifts to foreign governments or officials. Although we have policies and controls in place that are designed to ensure compliance with these laws and regulations, it is possible that an employee or intermediary could fail to comply with applicable laws and regulations. In such event, we could be exposed to civil penalties, criminal penalties and other sanctions, including fines or other punitive actions. In addition, such violations could damage our business and/or our reputation. Such criminal or civil sanctions, penalties, other sanctions, and damage to our business and/or reputation could have a material adverse effect on our financial condition and results of operations.
Risks Relating to the Notes
Our credit ratings, including ratings on our long-term debt including the notes, may be downgraded as a result of the UGC Acquisition or otherwise.
We have sought to obtain ratings for the notes. However, if any ratings are assigned to the notes in the future or if we issue other securities with a rating, such ratings, if they are lower than market expectations or are subsequently lowered or withdrawn, could adversely affect the market for or the market value of the notes. A rating is not a recommendation to purchase, sell or hold any particular security, including the notes. Ratings do not reflect market prices or suitability of a security for a particular investor and any future rating of the notes may not reflect all risks related to us and our business, or the structure or market value of the notes. Ratings reflect only the views of the rating agency or agencies issuing the ratings and such ratings could be revised downward or withdrawn entirely at the discretion of the issuing rating agency if in its judgment circumstances so warrant. Real or anticipated changes in our credit ratings could have an adverse effect on the market price of the notes. Following the announcement of the UGC Acquisition, Standard & Poor’s Financial Services affirmed our “A-” long‑term counterparty credit rating and revised its outlook to negative from stable; Moody’s Investors Service placed our ratings on review for downgrade and is expected, following the closing of the UGC Acquisition, to lower our senior unsecured debt rating by one notch to Baa1; and Fitch Ratings placed our long-term issuer credit ratings and senior unsecured debt rating on negative watch and indicated that they could be lowered by one notch to “A-” and “BBB+”, respectively. A downgrade in our credit ratings could affect our ability to obtain financing and/or the terms of such financing. Neither we nor any underwriter undertakes any obligation to maintain the ratings or to advise holders of notes of any change in ratings and there is no requirement in the indenture to maintain any particular rating. Each agency’s rating should be evaluated independently of any other agency’s rating. See also “—Risks Relating to Our Company—A downgrade in our financial strength ratings or our inability to obtain a rating for our operating insurance and reinsurance subsidiaries may adversely affect our relationships with clients and brokers and negatively impact sales of our products.”

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An active trading market for the notes may not develop.
The notes constitute new issues of securities with no established trading market. We cannot assure you that an active after-market for the notes will develop or be sustained or that holders of the notes will be able to sell their notes at favorable prices or at all. Although the underwriters have indicated to us that they intend to make a market in the notes, as permitted by applicable laws and regulations, they are not obligated to do so and may discontinue any such market-making at any time without notice. Accordingly, we cannot give any assurance as to the liquidity of, or trading markets for, the notes. The notes are not listed, and we do not plan to apply to list the notes on any securities exchange or to include them in any automated quotation system.
The notes and note guarantee are obligations of the issuer and ACGL, respectively, and not of our operating subsidiaries and will be effectively subordinated to the claims of the operating subsidiaries’ creditors.
The notes will be obligations of the issuer. The issuer was recently formed for the sole purpose of issuing the notes in this offering. It has no business activities. Following the closing of this offering, the issuer will lend the net proceeds of this offering to Arch U.S. MI Holdings Inc., the direct parent company of Arch MI U.S. and purchaser of United Guaranty, and will receive an intercompany note in consideration thereof. This intercompany note will be the issuer’s sole asset.
The note guarantee will be an obligation of ACGL and not of its subsidiaries. ACGL is a holding company and, accordingly, it conducts substantially all of its operations through its operating subsidiaries. As a result, ACGL’s cash flow and its ability to service its debt, including the note guarantee, depend upon the earnings of its operating subsidiaries and on the distribution of earnings, loans or other payments from such subsidiaries to ACGL. See “—Risks Relating to our Company—ACGL is a holding company and is dependent on dividends and other payments from its operating subsidiaries, which are subject to dividend restrictions, to make payments, including the payment of debt service obligations and operating expenses we may incur and any payments of dividends, redemption amounts or liquidation amounts with respect to our preferred shares and common shares.”
The operating subsidiaries of ACGL are separate and distinct legal entities and have no obligation to pay any amounts due on the notes or the note guarantee or to provide ACGL with funds for its payment obligations, whether by dividends, distributions, loans or other payments. In addition to being limited by the financial condition and operating requirements of such subsidiaries, any payment of dividends, distributions, loans or advances by ACGL’s subsidiaries to ACGL could be subject to statutory or contractual restrictions. Moreover, since certain of ACGL’s subsidiaries are insurance companies, their ability to pay dividends to ACGL is subject to regulatory limitations. See “Business—Regulation” in the 2015 Form 10-K.
The rights of ACGL to receive any assets of any of its subsidiaries upon liquidation or reorganization of such subsidiaries, and therefore the rights of the holders of the notes to participate in those assets, will be structurally subordinated to the claims of such subsidiary’s creditors. In addition, even if the issuer or ACGL were a creditor of any of ACGL’s subsidiaries, the rights of the issuer or ACGL, as applicable, as a creditor would be subordinate to any security interest in the assets of such subsidiaries and any indebtedness of such subsidiaries senior to that held by it. The notes and the note guarantee would also be structurally subordinated to the rights of the holders of any preferred stock issued by the subsidiaries of the issuer (if any) and the subsidiaries of ACGL, as applicable, whether currently outstanding or issued hereafter.
Your right to receive payments on the notes is effectively subordinated to those lenders who have a security interest in the assets of the issuer or ACGL.
The notes and the note guarantee are unsecured. In the future, the issuer or ACGL may incur indebtedness that is secured by certain or substantially all of their respective tangible and intangible assets, including the equity interests of each of their existing and future subsidiaries. If the issuer or ACGL were unable to repay any such secured indebtedness, the creditors of such obligations could foreclose on the pledged assets to the exclusion of holders of the notes, even if an event of default exists under the indenture governing the notes offered hereby and the note guarantee at such time. In any such event, because the notes and the note guarantee and the indenture governing the notes and the note guarantee are unsecured, it is possible that there would be no assets remaining from which your claims could be satisfied or, if any assets remained, they might be insufficient to fully satisfy your claims.


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The issuer may redeem the notes prior to their maturity date and you may not be able to reinvest the proceeds in a comparable security.
The notes may be redeemed at any time or from time to time, or may be required to be redeemed under certain circumstances, in each case, at the redemption prices described in “Description of Notes and Note Guarantee—Optional Redemption” and “Description of Notes and Note Guarantee—Special Mandatory Redemption.” In the event the notes are redeemed, you may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the interest rate on the notes.
The indenture under which the notes will be issued will contain only limited protection for holders of the notes in the event we are involved in a highly leveraged transaction, reorganization, restructuring, merger, amalgamation or similar transaction in the future.
The indenture under which the notes will be issued may not sufficiently protect holders of notes in the event that the issuer or ACGL are involved in a highly leveraged transaction, reorganization, restructuring, merger, amalgamation or similar transaction. The indenture will not contain any provisions restricting the issuer, ACGL or any of their respective subsidiaries’ ability to:
incur additional debt,
pay dividends on or purchase or redeem capital stock;
sell assets (other than certain restrictions on our ability to consolidate, merge, amalgamate or sell all or substantially all of our assets and our ability to sell the stock of certain subsidiaries);
create liens (other than certain limitations on creating liens on the stock of certain subsidiaries) or enter into sale and leaseback transactions; or
create restrictions on the payment of dividends or other amounts to the issuer or ACGL from their respective subsidiaries.
Additionally, the indenture will not require the issuer to offer to purchase the notes in connection with a change of control or require that the issuer or ACGL or their respective subsidiaries adhere to any financial tests or ratios or specified levels of net worth.
The issuer will have no material assets.
The issuer was formed in connection with this offering solely for the purpose of issuing the notes and currently has no independent operations or subsidiaries. Following the closing of this offering, the issuer will lend the net proceeds of this offering to Arch U.S. MI Holdings Inc., the direct parent company of Arch MI U.S. and purchaser of United Guaranty, and will receive an intercompany note in consideration thereof. This intercompany note will be the issuer’s sole asset. The notes will be fully and unconditionally guaranteed by ACGL.
The issuer may not be able to redeem the notes in the event of a special mandatory redemption, and holders of the notes may not obtain their expected return.
The UGC Acquisition is subject to various closing conditions, many of which are beyond the control of the issuer and ACGL. If (i) the Stock Purchase Agreement is terminated on any date prior to August 31, 2017 or (ii) the UGC Acquisition is not consummated prior to August 31, 2017, the issuer will be required to redeem the notes at a redemption price equal to 101% of the aggregate principal amount of the notes, together with accrued and unpaid interest on such notes from the issue date or the last date on which interest has been paid up to, but not including, the applicable special mandatory redemption date. If we redeem the notes pursuant to a special mandatory redemption, holders of the notes may not obtain their expected return on the notes and may not be able to reinvest the proceeds from such special mandatory redemption in an investment that results in a comparable return. Holders of the notes will have no rights under the special mandatory redemption provisions of the notes as long as the UGC Acquisition is consummated within the time frame set forth under “Description of Notes and Note Guarantee—Special Mandatory Redemption.” Upon the consummation of this offering, the net proceeds of this offering will not be placed into escrow and will be available to the issuer for use without restriction of any kind, and

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holders of notes will not have any security interest in such proceeds. Accordingly, the issuer will need to fund any special mandatory redemption using cash that it voluntarily retained or from other sources of liquidity (including drawings under its revolving credit facility). In the event of a special mandatory redemption, there is no assurance that the issuer will have sufficient funds to redeem any or all of the notes. The failure of the issuer to redeem the notes as required under the indenture governing the notes would result in a default under the indenture, which could result in defaults under its other debt agreements and have material adverse consequences for it and the holders of the notes. In addition, the ability of the issuer to redeem or purchase the notes for cash may be limited by the law or terms of other agreements relating to its indebtedness outstanding at the time. In addition, holders of the notes will not have any right to require us to redeem or repurchase their notes if between the closing of this offering and the consummation of the UGC Acquisition we experience any changes, including any material changes, in our businesses or financial condition, or if the terms of the Stock Purchase Agreement change, including in material respects. Your decision to invest in the notes is made at the time of the offering of the notes. Changes in our business or financial condition, or the terms of the Stock Purchase Agreement or the financing related thereto, between the closing of this offering and the closing of the transactions contemplated by the Stock Purchase Agreement will have no effect on your rights as a purchaser of the notes.
Risks Relating to Taxation
We and our non-U.S. subsidiaries may become subject to U.S. federal income taxation.
ACGL and its non-U.S. subsidiaries intend to operate their business in a manner that will not cause them to be treated as engaged in a trade or business in the U.S. and, thus, will not be required to pay U.S. federal income taxes (other than U.S. excise taxes on insurance and reinsurance premium and withholding taxes on certain U.S. source investment income) on their income. However, because there is uncertainty as to the activities which constitute being engaged in a trade or business in the U.S., there can be no assurances that the U.S. Internal Revenue Service (“IRS”) will not contend successfully that ACGL or its non-U.S. subsidiaries are engaged in a trade or business in the U.S. If ACGL or any of its non-U.S. subsidiaries were subject to U.S. income tax, our shareholders’ equity and earnings could be adversely affected.
Congress has been considering legislation intended to eliminate certain perceived tax advantages of Bermuda and other non-U.S. insurance companies and U.S. insurance companies having Bermuda and other non-U.S. affiliates, including perceived tax benefits resulting principally from reinsurance between or among U.S. insurance companies and their Bermuda or other non-U.S. affiliates. Some U.S. insurance companies have also been lobbying Congress recently to pass such legislation. In this regard, the American Jobs Creation Act of 2004 (the “Jobs Act”) permits the IRS to re-allocate, re-characterize or adjust items of income, deduction or certain other items related to a reinsurance agreement between related parties to reflect the proper source, character and amount for each item (in contrast to prior law, which only covered source and character). The Jobs Act also eliminated the tax benefits available to a U.S. company that, after March 4, 2003, changed its legal domicile to a non-U.S. jurisdiction, a transaction commonly known as an inversion. We changed our legal domicile from the U.S. to Bermuda, but were not affected by the anti-inversion rule because our change in domicile occurred in November 2000. The American Infrastructure Investment and Improvement Act of 2008 as passed by the Senate Finance Committee would have made the Jobs Act anti-inversion rule applicable retroactively to inversions that occurred after March 20, 2002. Although this modification would not affect ACGL, no assurance can be given that if reintroduced in the current Congress the final bill will not make the Jobs Act anti-inversion rule applicable retroactively to inversions that occurred on an earlier date, in which case ACGL could be adversely affected. A legislative proposal reintroduced in 2015 would treat certain foreign corporations as U.S. corporations if such corporation is primarily managed and controlled within the U.S. While we believe ACGL is not primarily managed and controlled within the U.S., there is no assurance that the proposal would not apply to ACGL. Another legislative proposal would treat a foreign corporation as a U.S. corporation if it is determined that the foreign corporation was formed or organized principally for the purpose of avoiding being treated as a U.S. corporation. It is uncertain whether this proposal would apply to ACGL, but it would adversely affect us if enacted and found to apply. Another legislative proposal has been introduced that would treat certain “tax haven CFCs” as U.S. corporations for federal income tax purposes. The term “tax haven CFC” would include a Bermuda corporation that is a controlled foreign corporation, but would exclude corporations that engage in the active conduct of a trade or business in Bermuda. It is not clear how this bill would apply to ACGL, which conducts its insurance and reinsurance businesses through its subsidiaries. Further, it is not clear whether this bill was intended to apply to a publicly traded company such as ACGL. There is no assurance that this legislative proposal, if enacted, would not apply to ACGL or any of its non-U.S. subsidiaries. In addition, Congress has conducted hearings relating to the tax treatment of reinsurance between affiliates and is reported to be considering legislation that would adversely affect reinsurance between U.S. and non-U.S. affiliates. One such proposal would increase the excise tax rate on reinsurance premiums paid to affiliated non-U.S. reinsurers. A legislative proposal in the House of Representatives as well as a prior Senate Finance Committee staff discussion draft and other prior proposals would

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limit deductions for premiums ceded to affiliated non-U.S. reinsurers above certain levels. The Administration’s Fiscal Year 2017 Revenue Proposals contain a similar but more restrictive provision that would deny deductions for all premiums ceded to affiliated non-U.S. reinsurers, offset by an exclusion for any ceding commissions received or reinsurance recovered from such affiliates. Two legislative proposals (i.e., H.R. 3157 and S. 1963) introduced during the 112th Congress appeared to include a provision that is similar to the one contained in the Administration’s Fiscal Year 2017 Revenue Proposals. A similar proposal has also been introduced in the current 114th Congress. In July 2015, the Senate Finance Committee’s International Tax Reform Working Group released a final report providing a loose framework for U.S. tax reform. While the final report discussed issues regarding foreign affiliate reinsurance, it did not recommend any specific proposal in this respect. Enactment of any such legislation or proposal described above as well as other changes in U.S. tax laws, regulations and interpretations thereof to address these issues could adversely affect us.
In November 2013, the Senate Committee on Finance published two alternative Chairman’s Staff Discussion Drafts on reforming international business taxation. The drafts contain legislative proposals that, if enacted, could adversely affect us. The drafts include a provision to limit deductions for premium ceded to affiliated non-U.S. reinsurers, which is similar to the provision in the Administration’s Fiscal Year 2017 Revenue Proposals as described above. The drafts would repeal the portfolio interest exemption on U.S. corporate debt, which could significantly increase tax liabilities on our investment portfolio or cause us to increase investment in non-U.S. corporate debt. In February 2014, the House Ways and Means Committee Chairman Dave Camp published a tax reform proposal titled “Tax Reform Act of 2014,” which was subsequently introduced to the Congress in December 2014 (the “Camp bill”). The Camp bill contains several provisions that, if enacted, could adversely affect us. One provision is similar to the reinsurance premium disallowance provision contained in the Administration’s Fiscal Year 2017 Revenue Proposals as described above. Other provisions in the Camp bill would modify certain tax rules applicable to U.S. and non-U.S. insurance companies, which could adversely affect our U.S. federal income tax liabilities. The Camp bill has not been reintroduced in the current 114th Congress. In February 2016, the U.S. Department of the Treasury released a revised 2016 U.S. Model Income Tax Convention, which contained several substantive changes to the 2006 U.S. Model Income Tax Convention. These changes outline the U.S. Department of the Treasury’s position on related issues in the future treaty negotiations. While the changes would have no legal effect unless they are incorporated in the relevant income tax treaties through negotiation with other contracting states, there is no assurance that the adoption of any of the changes would not adversely affect income tax liabilities of any of us or any of our subsidiaries.
Our non-U.K. companies may be subject to U.K. tax that may have a material adverse effect on our results of operations.
We intend to operate in such a manner so that none of our companies, other than our U.K. subsidiaries and branch operations (the “U.K. Group”), should be resident in the U.K. for tax purposes or carry on a trade, whether or not through a permanent establishment, in the U.K. Accordingly, we do not expect that of our other subsidiaries, other than the U.K. Group, should be subject to U.K. tax. Case law has held that whether or not a trade is being carried on in the U.K. is a matter of fact and emphasis is placed on where the operations take place from which the profits in substance arise. HM Revenue and Customs might contend successfully that one or more of our subsidiaries, in addition to the U.K. Group, is carrying on a trade in the U.K. For U.K. tax purposes, a non-U.K. tax resident company will be subject to U.K. corporation tax only if it carries on a trade through a permanent establishment in the U.K. However, that subsidiary may still be subject to U.K. income tax if it carries on a trade in the U.K. without a permanent establishment, unless it is entitled to the protection afforded by a double tax treaty between the U.K. and the jurisdiction in which that company is resident. If any of our subsidiaries is treated as resident, or carrying on a trade, in the U.K., whether or not through a permanent establishment, and, therefore, subject to U.K. tax, our results of operations could be materially adversely affected.
We may become subject to taxes in Bermuda after March 31, 2035, which may have a material adverse effect on our results of operations.
Under current Bermuda law, we are not subject to tax on income, profits, withholding, capital gains or capital transfers. Furthermore, we have obtained from the Minister of Finance of Bermuda under the Exempted Undertakings Tax Protection Act, 1966, an assurance that, in the event that Bermuda enacts legislation imposing tax computed on profits, income, any capital asset, gain or appreciation, or any tax in the nature of estate duty or inheritance tax, then the imposition of the tax will not be applicable to us or our operations until March 31, 2035. We could be subject to taxes in Bermuda after that date. This assurance does not, however, prevent the imposition of taxes on any person ordinarily resident in Bermuda or any company in respect of its ownership of real property or leasehold interests in Bermuda.

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The impact of Bermuda’s letter of commitment to the OECD to eliminate harmful tax practices is uncertain and could adversely affect our tax status in Bermuda.
The Organization for Economic Cooperation and Development (“OECD”) has published reports and launched a global initiative among member and non-member countries on measures to limit harmful tax competition. These measures are largely directed at counteracting the effects of tax havens and preferential tax regimes in countries around the world. Bermuda was not listed in the most recent report as an uncooperative tax haven jurisdiction because it had previously committed to eliminate harmful tax practices, to embrace international tax standards for transparency, to exchange information and to eliminate an environment that attracts business with no substantial domestic activity. We are not able predict what changes will arise from the commitment or whether such changes will subject us to additional taxes.
We may become subject to increased taxation in Bermuda and other countries as a result of the OECD’s plan on “Base erosion and profit shifting.”
The OECD, with the support of the G20, initiated the “base erosion and profit shifting” (“BEPS”) project in 2013 in response to concerns that international tax standards have not kept pace with changes in global business practices and that changes are needed to international tax laws to address situations where multinationals may pay little or no tax in certain jurisdictions by shifting profits away from jurisdictions where the activities creating those profits may take place. In October 2015, the OECD issued “final reports” in connection with the BEPS project. The final reports have been approved for adoption by the G20 finance ministers in November 2015. The final reports provide the basis for international standards for corporate taxation that are designed to prevent, among other things, the artificial shifting of income to tax havens and low-tax jurisdictions, the erosion of the tax base through interest deductions on intercompany debt and the artificial avoidance of permanent establishments (i.e., tax nexus with a jurisdiction). The measures also contemplate the development of a multilateral instrument to incorporate and facilitate changes to tax treaties.
Legislation to adopt these standards has been enacted or is currently under consideration in a number of jurisdictions to implement these standards, including country-by-country reporting. As a result, our income may be taxed in jurisdictions where it is not currently taxed and at higher rates of tax than currently taxed, which may substantially increase our effective tax rate. Also, the adoption of these standards may increase the complexity and costs associated with tax compliance and adversely affect our financial position and results of operations.

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USE OF PROCEEDS
We expect to receive approximately $      million in net proceeds from this offering, after deducting the underwriting discount and estimated offering expenses payable by us. We intend to use the net proceeds of this offering to finance the UGC Acquisition, to pay related costs and expenses, and for anticipated growth in our mortgage and other select businesses. The closing of this offering is not contingent on the closing of the UGC Acquisition. If the UGC Acquisition does not occur, the notes will be subject to special mandatory redemption as described in “Description of Notes and Note Guarantee—Special Mandatory Redemption.”
We will temporarily invest any net proceeds not used immediately in short-term, interest-bearing obligations.
RATIO OF EARNINGS TO FIXED CHARGES
The ratio of earnings to fixed charges for each of the periods set forth below is as follows:
 
Nine Months Ended
September 30,
 
Year Ended December 31,
 
2016
 
2015
 
2015
 
2014
 
2013
 
2012
 
2011
Ratio of earnings to fixed charges(1)
12.2x
 
11.2x
 
8.5x
 
13.0x
 
24.9x
 
16.9x
 
14.4x
____________________
(1)
For purposes of determining the ratio of earnings to fixed charges, “earnings” consists of (a) income before income taxes, minus (b) equity in net income of investees, plus (c) fixed charges, and “fixed charges” consists of (a) interest and amortization on indebtedness, plus (b) estimate of interest component within rental expense net of sublease income.

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CAPITALIZATION
The following table sets forth our capitalization at September 30, 2016 on:
an actual basis;
an as adjusted basis to give effect to this offering and the application of net proceeds, as if such actions had occurred on September 30, 2016; and
an as further adjusted basis to give effect to the UGC Acquisition as if it had occurred on September 30, 2016.
The following should be read in conjunction with (1) our financial statements and the notes related thereto which are included in our 2016 Third Quarter Form 10-Q and (2) our pro forma financial statements and the notes related thereto that are included in this prospectus supplement under the heading “Preliminary Unaudited Pro Forma Condensed Combined Financial Information.”
 
September 30, 2016
(U.S. dollars in thousands, except share data)
Actual
 
As adjusted for this
offering
 
As further adjusted for the UGC
Acquisition
5.144% Senior Notes due 2043 of Arch Capital Group (U.S.) Inc.(1)
$
500,000

 
$
500,000

 
$
500,000

7.35% Senior Notes due 2034 of ACGL(1)
300,000

 
300,000

 
300,000

___% Senior Notes due 2026 of Arch Finance offered hereby(1)


 
 
 
 
___% Senior Notes due 2046 of Arch Finance offered hereby(1)


 
 
 
 
Revolving credit facility borrowings(2)
398,100

 
398,100

 
797,850

Total debt(3)
1,198,100

 


 


Shareholders’ equity:
 
 
 
 
 
Series C Non-Cumulative Preferred Shares (13,000,000 issued and outstanding, actual and as adjusted and as further adjusted)
325,000

 
325,000

 
325,000

Series D Convertible Preferred Shares (0 issued and outstanding, actual and as adjusted; 12,762,816 issued and outstanding, as further adjusted)

 

 
1,041,701

Series E Non-Cumulative Preferred Shares (18,000 issued and outstanding, as adjusted and as further adjusted)
450,000

 
450,000

 
450,000

Common shares ($0.0033 par value, 600,000,000 shares authorized, and 174,499,023 shares issued and outstanding, actual, as adjusted and as further adjusted(4)
582

 
582

 
582

Additional paid-in capital(5)
516,204

 
516,204

 
516,204

Retained earnings
7,972,643

 
7,972,643

 
7,958,045

Accumulated other comprehensive income, net of deferred income tax
119,752

 
119,752

 
110,860

Common shares held in treasury, at cost (shares: 51,823,826)
(2,031,859
)
 
(2,031,859
)
 
(2,031,859
)
Non-redeemable noncontrolling interests(6)
834,808

 
834,808

 
834,808

Total shareholders’ equity
8,187,130

 
8,187,130

 
9,205,341

Total capitalization
$
9,385,230

 


 


Selected ratios:
 
 
 
 
 
Ratio of total debt to total capitalization
12.8
%
 
    %

 
    %

Ratio of total preferred shares to total capitalization
8.3
%
 
    %

 
    %

Ratio of total debt and total preferred shares to total capitalization
21.0
%
 
    %

 
    %

____________________
(1)
Does not reflect debt issuance costs of $5.5 million for the 5.144% Senior Notes and $3.1 million for the 7.35% Senior Notes or any debt issuance costs for the notes offered hereby.
(2)
As of September 30, 2016 there were $100 million of revolving loans, no unsecured letters of credit and $176 million of secured letters of credit outstanding under the then existing revolving credit agreement of ACGL and certain of its wholly owned subsidiaries. On October 26, 2016, we amended and restated this credit agreement (as so amended and restated, the “Amended Credit Agreement”). The Amended Credit Agreement provides for a $500 million unsecured revolving loan and letter of credit facility and a $350 million secured letter of credit facility, and the commitments thereunder terminate on October 26, 2021.
The aggregate amount of revolving credit facility borrowings on our balance sheet as of September 30, 2016 also includes borrowings of $298.1 million by Watford Re Ltd. under its secured credit facility. Watford Re Ltd. is considered a variable interest entity and therefore included in ACGL’s consolidated financial statements. However, the Company does not guarantee or provide credit support for Watford Re Ltd., and the Company’s financial exposure to Watford Re Ltd. is limited to its investment in Watford Re Ltd.’s common and preferred shares and counterparty credit risk (mitigated by collateral) arising from reinsurance transactions.

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As further adjusted for the UGC Acquisition assumes the borrowing of $400 million under the Amended Credit Agreement to fund a portion of the Cash Consideration payable at the closing of the UGC Acquisition.
(3)
Does not include reserves or other balance sheet or non-balance-sheet liabilities, including contingent liabilities. See the sections entitled “Selected Historical Consolidated Financial and Operating Data” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Quarterly Report on Form 10-Q for the quarter ended September 30, 2016 incorporated herein by reference.
(4)
The number of common shares outstanding excludes the effect of 7,018,749 outstanding employee stock options and 404,754 restricted stock units outstanding at September 30, 2016.
(5)
Adjusted for estimated issue costs related to this offering.
(6)
Represents the portion of Watford Re Ltd’s common equity attributable to third party investors. The noncontrolling ownership in Watford Re Ltd.’s common shares was approximately 89% at September 30, 2016.

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PRELIMINARY UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS
The following preliminary unaudited pro forma condensed combined financial information is (i) based on the historical financial information of Arch and United Guaranty and (ii) has been prepared to reflect the proposed acquisition of United Guaranty by Arch (the “UGC Acquisition”). The preliminary unaudited pro forma condensed combined financial information has been prepared by Arch’s management, after discussion with United Guaranty’s management. The preliminary unaudited pro forma condensed combined balance sheet gives effect to the proposed UGC Acquisition and this offering as if they had occurred at September 30, 2016. The preliminary unaudited pro forma condensed combined statements of income gives effect to the proposed UGC Acquisition, the Share Offering and this offering as if they had occurred at January 1, 2015. The historical financial information has been adjusted to reflect factually supportable items that are directly attributable to the UGC Acquisition, the Share Offering and this offering and, with respect to the preliminary unaudited pro forma condensed combined statements of income data only, are expected to have a continuing impact on the results of operations of the combined company. The preliminary unaudited pro forma condensed combined financial information is presented solely for informational purposes and is not necessarily indicative of the combined results of operations or financial position that might have been achieved for the periods or dates indicated, nor is it necessarily indicative of the future results of the combined company.
The preparation of the preliminary unaudited pro forma condensed combined financial statements and related adjustments required Arch’s management to make certain assumptions and estimates. The preliminary unaudited pro forma condensed combined financial statements should be read together with:
the accompanying notes to the preliminary unaudited pro forma condensed combined financial statements;
the audited historical consolidated financial statements and accompanying notes included in Arch’s 2015 Form 10-K, which is incorporated by reference in this prospectus supplement;
the unaudited historical consolidated financial statements and accompanying notes included in Arch’s 2016 Third Quarter Form 10-Q, which is incorporated by reference in this prospectus supplement;
the audited historical consolidated financial statements and accompanying notes of UG Corp as of December 31, 2015 and 2014 and for the years ended December 31, 2015, 2014 and 2013, included in Arch’s Current Report on Form 8-K filed on September 22, 2016, which is incorporated by reference in this prospectus supplement; and
the unaudited historical consolidated financial statements and accompanying notes of UG Corp as of September 30, 2016 and for the nine months ended September 30, 2016 and 2015, included in Arch’s Current Report on Form 8-K filed on November 9, 2016, which is incorporated by reference in this prospectus supplement.
The preliminary unaudited pro forma condensed combined financial statements have been prepared using the acquisition method of accounting for business combinations pursuant to the applicable accounting guidance. This information is presented solely for informational purposes and is not necessarily indicative of the consolidated results of operations or financial position that might have been achieved for the periods or dates indicated, nor is it necessarily indicative of the future results of the combined company. In addition, the preliminary unaudited pro forma condensed combined financial information has not been adjusted to reflect any revenue enhancements or potential lost or reduced business, expense efficiencies, synergies, integration costs, asset dispositions, potential additional equity issuances and/or debt incurrences or other actions that may result from or occur following the UGC Acquisition.
A final determination of the fair value of United Guaranty’s assets and liabilities, including the fair value of identifiable intangible assets, cannot be made prior to the completion of the UGC Acquisition. Arch has not had sufficient time to complete a formal valuation study of United Guaranty’s assets and liabilities at this stage. Consequently, the estimated fair value adjustments, and amounts preliminarily allocated to goodwill, could change significantly from the allocations used in the preliminary unaudited pro forma condensed combined financial statements. Upon closing of the UGC Acquisition and the completion of a formal valuation study, the estimated fair value of the assets and liabilities will be updated, including the estimated fair value and useful lives of the identifiable intangible assets and allocation of the excess purchase price to goodwill.
The adjustments that will be recorded at the close of the UGC Acquisition may differ materially from the information presented in these preliminary unaudited pro forma condensed combined financial statements including, but not limited to, the following:

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the occurrence of economic events which trigger losses on mortgage business written by United Guaranty;
changes in the fair value of United Guaranty’s investment portfolios due to market volatility;
changes in market volatility impacting financing assumptions;
changes in the trading price for Arch’s common shares;
net cash used or generated in United Guaranty’s operations between the signing of the stock purchase agreement and completion of the UGC Acquisition;
the timing of the completion of the UGC Acquisition; and
other changes in United Guaranty’s net assets that occur prior to completion of the UGC Acquisition.
Certain financial information of United Guaranty, as presented in its historical consolidated financial statements, has been reclassified to conform to the historical presentation in Arch’s consolidated financial statements, for purposes of preparing the preliminary unaudited pro forma condensed combined financial statements. Refer to note 4 of the preliminary unaudited pro forma condensed combined financial statements for an explanation of these reclassifications.

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PRELIMINARY UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET
(U.S. dollars in thousands)
 
September 30, 2016
 
Historical
Arch
 
Historical
UGC(1)
 
Acquisition
Adjustments
 
Note 6
 
Financing
Adjustments
 
Note 6
 
Pro Forma
Combined
Assets
 
 
 
 
 
 
 
 
 
 
 
 
 
Investments:
 
 
 
 
 
 
 
 
 
 
 
 
 
Fixed maturities available for sale, at fair value
$
11,026,929

 
$
3,870,973

 
$
(226,149
)
 
(a)
 
$
(422,000
)
 
(t)
 
$
14,249,753

Short-term investments available for sale, at fair value
1,184,408

 
95,682

 
47,476

 
 (b)
 
(434,899
)
 
 (u)
 
892,667

Collateral received under securities lending, at fair value
466,055

 

 

 
 
 

 
 
 
466,055

Equity securities available for sale, at fair value
521,587

 

 

 
 
 

 
 
 
521,587

Other investments available for sale, at fair value
168,243

 

 

 
 
 

 
 
 
168,243

Investments accounted for using the fair value option
3,389,573

 

 

 
 
 

 
 
 
3,389,573

Investments accounted for using the equity method
797,542

 

 

 
 
 

 
 
 
797,542

Total investments
17,554,337

 
3,966,655

 
(178,673
)
 
 
 
(856,899
)
 
 
 
20,485,420

Cash
578,816

 
31,461

 
(2,228,982
)
 
 (c)
 
2,197,500

 
 (v)
 
578,795

Accrued investment income
81,907

 
37,353

 
(1,413
)
 
 (d)
 

 
 
 
117,847

Securities pledged under securities lending, at fair value
453,757

 

 

 
 
 

 
 
 
453,757

Premiums receivable
1,182,708

 
32,153

 
1,545

 
 (e)
 

 
 
 
1,216,406

Reinsurance recoverable on unpaid and paid losses and LAE
2,076,248

 
26,510

 
41

 
 (f)
 

 
 
 
2,102,799

Contractholder receivables
1,649,441

 

 

 
 
 

 
 
 
1,649,441

Prepaid reinsurance premiums
541,238

 
300,616

 
27,302

 
 (g)
 

 
 
 
869,156

Deferred acquisition costs, net
469,466

 
98,720

 
(98,720
)
 
 (h)
 

 
 
 
469,466

Receivable for securities sold
285,112

 
2,022

 

 
 
 

 
 
 
287,134

Goodwill and intangible assets
90,941

 

 
587,755

 
 (i)
 

 
 
 
678,696

Other assets
679,260

 
726,521

 
(628,039
)
 
 (j)
 
(4,400
)
 
 (w)
 
773,342

Total assets
$
25,643,231

 
$
5,222,011

 
$
(2,519,184
)
 
 
 
$
1,336,201

 
 
 
$
29,682,259

Liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
Reserve for losses and loss adjustment expenses
$
9,610,189

 
$
608,888

 
$
8,261

 
(k)
 
$

 
 
 
$
10,227,338

Unearned premiums
2,671,121

 
857,792

 
27,302

 
 (l)
 

 
 
 
3,556,215

Reinsurance balances payable
271,688

 
53,242

 
660

 
 (m)
 

 
 
 
325,590

Contractholder payables
1,649,441

 

 

 
 
 

 
 
 
1,649,441

Collateral held for insured obligations
277,463

 

 

 
 
 

 
 
 
277,463

Deposit accounting liabilities
22,281

 

 

 
 
 

 
 
 
22,281

Senior notes
791,437

 

 

 
 
 
940,851

 
 (x)
 
1,732,288

Revolving credit agreement borrowings
398,100

 

 

 
 
 
399,750

 
 (y)
 
797,850

Securities lending payable
466,047

 

 

 
 
 

 
 
 
466,047

Payable for securities purchased
474,041

 
12,664

 

 
 
 

 
 
 
486,705

Other liabilities
618,834

 
222,992

 
(111,585
)
 
 (n)
 

 
 
 
730,241

Total liabilities
17,250,642

 
1,755,578

 
(75,362
)
 
 
 
1,340,601

 
 
 
20,271,459

Commitments and Contingencies
 
 
 
 
 
 
 
 
 
 
 
 
 
Redeemable noncontrolling interests
205,459

 

 

 
 
 

 
 
 
205,459

Shareholders’ Equity
 
 
 
 
 
 
 
 
 
 
 
 
 
Non-cumulative preferred shares
775,000

 

 

 
 
 

 
 
 
775,000

Convertible non-voting common equivalent preferred shares

 

 
1,041,701

 
 (o)
 

 
 
 
1,041,701

Common shares
582

 
2

 
(2
)
 
 (p)
 

 
 
 
582

Additional paid-in capital
516,204

 
2,122,687

 
(2,122,687
)
 
 (q)
 

 
 
 
516,204

Retained earnings
7,972,643

 
1,221,707

 
(1,240,797
)
 
 (r)
 
4,492

 
 (z)
 
7,958,045

Accumulated other comprehensive income, net of deferred income tax
119,752

 
122,037

 
(122,037
)
 
 (s)
 
(8,892
)
 
 (aa)
 
110,860

Common shares held in treasury, at cost
(2,031,859
)
 

 

 
 
 

 
 
 
(2,031,859
)
Total shareholders’ equity available to Arch
7,352,322

 
3,466,433

 
(2,443,822
)
 
 
 
(4,400
)
 
 
 
8,370,533

Non-redeemable noncontrolling interests
834,808

 

 

 
 
 

 
 
 
834,808

Total shareholders’ equity
8,187,130

 
3,466,433

 
(2,443,822
)
 
 
 
(4,400
)
 
 
 
9,205,341

Total liabilities, noncontrolling interests and shareholders’ equity
$
25,643,231

 
$
5,222,011

 
$
(2,519,184
)
 
 
 
$
1,336,201

 
 
 
$
29,682,259

____________________
(1)
Historical UGC after conforming reclassifications. Refer to note 4.


See the accompanying notes to the preliminary unaudited pro forma condensed combined financial statements.

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PRELIMINARY UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
(U.S. dollars in thousands, except share data)
 
Nine Months Ended September 30, 2016
 
Historical
Arch
 
Historical
UGC(1)
 
Acquisition
Adjustments
 
Note 6
 
Financing
Adjustments
 
Note 6
 
Pro Forma
Combined
Revenues
 
 
 
 
 
 
 
 
 
 
 
 
 
Net premiums written
$
3,159,076

 
$
493,016

 
$

 
(ab)
 
$

 
 
 
$
3,652,092

Change in unearned premiums
(243,109
)
 
45,863

 

 
 (ac)
 

 
 
 
(197,246
)
Net premiums earned
2,915,967

 
538,879

 

 
 
 

 
 
 
3,454,846

Net investment income
275,691

 
103,182

 
(17,861
)
 
 (ad)
 
(16,086
)
 
 (an)
 
344,926

Net realized gains (losses)
230,647

 
2,746

 
6

 
 (ae)
 

 
 
 
233,399

Net impairment losses recognized in earnings
(16,849
)
 
(1,579
)
 

 
 
 

 
 
 
(18,428
)
Other underwriting income
38,251

 
5,867

 
(4,336
)
 
 (af)
 

 
 
 
39,782

Equity in net income (loss) of investment funds accounted for using the equity method
32,054

 

 

 
 
 

 
 
 
32,054

Other income (loss)
(432
)
 
1,035

 

 
 
 

 
 
 
603

Total revenues
3,475,329

 
650,130

 
(22,191
)
 
 
 
(16,086
)
 
 
 
4,087,182

Expenses
 
 
 
 
 
 
 
 
 
 
 
 
 
Losses and loss adjustment expenses
1,631,724

 
91,754

 
(1,858
)
 
 (ag)
 

 
 
 
1,721,620

Acquisition expenses
509,607

 
(17,388
)
 
62,100

 
 (ah)
 

 
 
 
554,319

Other operating expenses
467,416

 
177,274

 
211

 
 (ai)
 

 
 
 
644,901

Corporate expenses
45,068

 

 
(6,837
)
 
 (aj)
 

 
 
 
38,231

Interest expense
47,713

 

 

 
 
 
39,267

 
 (ao)
 
86,980

Net foreign exchange losses (gains)
1,525

 
24,894

 
(25,111
)
 
 (ak)
 
 
 
 
 
1,308

Total expenses
2,703,053

 
276,534

 
28,505

 
 
 
39,267

 
 
 
3,047,359

Income before income taxes
772,276

 
373,596

 
(50,696
)
 
 
 
(55,353
)
 
 
 
1,039,823

Income tax (expense) benefit
(43,672
)
 
(128,985
)
 
27,501

 
 (al)
 
15,681

 
(ap)
 
(129,475
)
Net income
$
728,604

 
$
244,611

 
$
(23,195
)
 
 
 
$
(39,672
)
 
 
 
$
910,348

Net (income) loss attributable to noncontrolling interests
(109,879
)
 

 

 
 
 

 
 
 
(109,879
)
Net income available to Arch
618,725

 
244,611

 
(23,195
)
 
 
 
(39,672
)
 
 
 
800,469

Preferred dividends
(16,453
)
 

 

 
 
 
(17,719
)
 
(aq)
 
(34,172
)
Net income available to Arch common shareholders
$
602,272

 
$
244,611

 
$
(23,195
)
 
 
 
$
(57,391
)
 
 
 
$
766,297

Net income per common share
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
$
4.99

 
 
 
 
 
 
 
 
 
 
 
$
5.74

Diluted
$
4.84

 
 
 
 
 
 
 
 
 
 
 
$
5.58

Weighted average common shares and common share equivalents outstanding
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
120,656,420

 
 
 
12,762,816

 
 (am)
 
 
 
 
 
133,419,236

Diluted
124,528,174

 
 
 
12,762,816

 
 (am)
 
 
 
 
 
137,290,990

____________________
(1)
Historical UGC after conforming reclassifications. Refer to note 4.








See the accompanying notes to the preliminary unaudited pro forma condensed combined financial statements.

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PRELIMINARY UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
(U.S. dollars in thousands, except share data)
 
Year Ended December 31, 2015
 
Historical
Arch
 
Historical
UGC(1)
 
Acquisition
Adjustments
 
Note 6
 
Financing
Adjustments
 
Note 6
 
Pro Forma
Combined
Revenues
 
 
 
 
 
 
 
 
 
 
 
 
 
Net premiums written
$
3,817,531

 
$
651,288

 
$
1,730

 
(ab)
 
$

 
 
 
$
4,470,549

Change in unearned premiums
(83,626
)
 
120,858

 
(2,357
)
 
 (ac)
 

 
 
 
34,875

Net premiums earned
3,733,905

 
772,146

 
(627
)
 
 
 

 
 
 
4,505,424

Net investment income
348,090

 
138,005

 
(25,764
)
 
 (ad)
 
(21,719
)
 
 (an)
 
438,612

Net realized gains (losses)
(185,842
)
 
205

 
(360
)
 
 (ae)
 

 
 
 
(185,997
)
Net impairment losses recognized in earnings
(20,116
)
 
(1,613
)
 

 
 
 

 
 
 
(21,729
)
Other underwriting income
35,497

 
12,588

 
(10,416
)
 
 (af)
 

 
 
 
37,669

Equity in net income (loss) of investment funds accounted for using the equity method
25,455

 

 

 
 
 

 
 
 
25,455

Other income (loss)
(399
)
 
1,225

 

 
 
 

 
 
 
826

Total revenues
3,936,590

 
922,556

 
(37,167
)
 
 
 
(21,719
)
 
 
 
4,800,260

Expenses
 
 
 
 
 
 
 
 
 
 
 
 
 
Losses and loss adjustment expenses
2,050,903

 
153,985

 
(4,235
)
 
 (ag)
 

 
 
 
2,200,653

Acquisition expenses
681,476

 
(3,573
)
 
101,400

 
 (ah)
 

 
 
 
779,303

Other operating expenses
607,516

 
224,894

 
(9,068
)
 
 (ai)
 

 
 
 
823,342

Corporate expenses
49,745

 

 

 
 
 

 
 
 
49,745

Interest expense
45,874

 

 

 
 
 
50,904

 
 (ao)
 
96,778

Net foreign exchange losses (gains)
(66,118
)
 
(53
)
 

 
 (ak)
 

 
 
 
(66,171
)
Total expenses
3,369,396

 
375,253

 
88,097

 
 
 
50,904

 
 
 
3,883,650

Income before income taxes
567,194

 
547,303

 
(125,264
)
 
 
 
(72,623
)
 
 
 
916,610

Income tax (expense) benefit
(40,612
)
 
(187,496
)
 
40,321

 
 (al)
 
20,493

 
(ap)
 
(167,294
)
Net income
$
526,582

 
$
359,807

 
$
(84,943
)
 
 
 
$
(52,130
)
 
 
 
$
749,316

Net (income) loss attributable to noncontrolling interests
11,156

 

 

 
 
 

 
 
 
11,156

Net income available to Arch
537,738

 
359,807

 
(84,943
)
 
 
 
(52,130
)
 
 
 
760,472

Preferred dividends
(21,938
)
 

 

 
 
 
(23,625
)
 
(aq)
 
(45,563
)
Net income available to Arch common shareholders
$
515,800

 
$
359,807

 
$
(84,943
)
 
 
 
$
(75,755
)
 
 
 
$
714,909

Net income per common share