Noteworthy Wednesday Option Activity: RETA, SIGA, CTRN

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Reata Pharmaceuticals Inc (RETA), where a total volume of 3,755 contracts has been traded thus far today, a contract volume which is representative of approximately 375,500 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 160.1% of RETA's average daily trading volume over the past month, of 234,515 shares..