Notable Tuesday Option Activity: TSRO, AAP, CAB

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Tesaro Inc (TSRO), where a total of 6,290 contracts have traded so far, representing approximately 629,000 underlying shares. That amounts to about 52.3% of TSRO's average daily trading volume over the past month of 1.2 million shares..