Notable Wednesday Option Activity: CORT, XPO, COST

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Corcept Therapeutics Inc (CORT), where a total volume of 7,121 contracts has been traded thus far today, a contract volume which is representative of approximately 712,100 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 55.6% of CORT's average daily trading volume over the past month, of 1.3 million shares..