Notable Thursday Option Activity: BLUE, GES, AXSM

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in bluebird bio Inc (BLUE), where a total volume of 3,937 contracts has been traded thus far today, a contract volume which is representative of approximately 393,700 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 61.8% of BLUE's average daily trading volume over the past month, of 637,230 shares..