Notable Thursday Option Activity: ALNY, PRIM, INMD

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Alnylam Pharmaceuticals Inc (ALNY), where a total of 6,835 contracts have traded so far, representing approximately 683,500 underlying shares. That amounts to about 84.9% of ALNY's average daily trading volume over the past month of 805,210 shares..