Notable Tuesday Option Activity: ISRG, MYL, DAL
May 23, 2017 at 13:20 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 1,753 contracts has been traded thus far today, a contract volume which is representative of approximately 175,300 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 58.5% of ISRG's average daily trading volume over the past month, of 299,655 shares..