Notable Thursday Option Activity: ISRG, CCXI, SFM
October 31, 2019 at 15:41 PM EDT
Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Intuitive Surgical Inc (ISRG), where a total volume of 4,198 contracts has been traded thus far today, a contract volume which is representative of approximately 419,800 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 69.1% of ISRG's average daily trading volume over the past month, of 607,365 shares..