Notable Tuesday Option Activity: ENTA, AVXL, CRUS

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Enanta Pharmaceuticals Inc (ENTA), where a total volume of 1,157 contracts has been traded thus far today, a contract volume which is representative of approximately 115,700 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 71.6% of ENTA's average daily trading volume over the past month, of 161,670 shares..