Noteworthy Friday Option Activity: MRK, OXY, IBM
May 26, 2017 at 14:22 PM EDT
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Merck & Co Inc (MRK), where a total volume of 39,325 contracts has been traded thus far today, a contract volume which is representative of approximately 3.9 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 40.7% of MRK's average daily trading volume over the past month, of 9.7 million shares..