Notable Thursday Option Activity: ALNY, PRLB, IIVI

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 3,852 contracts have traded so far, representing approximately 385,200 underlying shares. That amounts to about 93% of ALNY's average daily trading volume over the past month of 414,400 shares..
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