Notable Thursday Option Activity: CNK, PINS, UNH

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Cinemark Holdings Inc (CNK), where a total of 18,648 contracts have traded so far, representing approximately 1.9 million underlying shares. That amounts to about 61.3% of CNK's average daily trading volume over the past month of 3.0 million shares..