Noteworthy Friday Option Activity: MRK, ABT, ARNA
September 20, 2019 at 15:17 PM EDT
Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Merck & Co Inc (MRK), where a total volume of 32,679 contracts has been traded thus far today, a contract volume which is representative of approximately 3.3 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 42.2% of MRK's average daily trading volume over the past month, of 7.7 million shares..