Noteworthy Wednesday Option Activity: MNTA, BMRN, HD

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Momenta Pharmaceuticals Inc (MNTA), where a total volume of 79,448 contracts has been traded thus far today, a contract volume which is representative of approximately 7.9 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 701.9% of MNTA's average daily trading volume over the past month, of 1.1 million shares..