Noteworthy Thursday Option Activity: DBX, DNUT, SAVA

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Dropbox Inc (DBX), where a total of 12,741 contracts have traded so far, representing approximately 1.3 million underlying shares. That amounts to about 46.3% of DBX's average daily trading volume over the past month of 2.8 million shares..