Noteworthy Friday Option Activity: BLK, MLM, HLF
May 17, 2019 at 15:23 PM EDT
Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Blackrock Inc (BLK), where a total volume of 3,371 contracts has been traded thus far today, a contract volume which is representative of approximately 337,100 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 64.1% of BLK's average daily trading volume over the past month, of 525,580 shares..