Noteworthy Monday Option Activity: BLK, IBM, MCD
May 21, 2018 at 13:37 PM EDT
Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Blackrock Inc (BLK), where a total of 2,293 contracts have traded so far, representing approximately 229,300 underlying shares. That amounts to about 43.4% of BLK's average daily trading volume over the past month of 528,395 shares..