Noteworthy Thursday Option Activity: BSIG, ISRG, DE

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Brightsphere Investment Group Inc (BSIG), where a total volume of 2,613 contracts has been traded thus far today, a contract volume which is representative of approximately 261,300 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 63.4% of BSIG's average daily trading volume over the past month, of 412,000 shares..