Notable Thursday Option Activity: GM, NFLX, XLNX
May 31, 2018 at 13:15 PM EDT
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in General Motors Co (GM), where a total volume of 172,153 contracts has been traded thus far today, a contract volume which is representative of approximately 17.2 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 209.1% of GM's average daily trading volume over the past month, of 8.2 million shares..