Notable Wednesday Option Activity: ISRG, PCLN, CMCSA
May 18, 2016 at 14:24 PM EDT
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Intuitive Surgical Inc (ISRG), where a total volume of 10,347 contracts has been traded thus far today, a contract volume which is representative of approximately 1.0 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 318.2% of ISRG's average daily trading volume over the past month, of 325,215 shares..