Notable Monday Option Activity: CRBP, ATSG, NBR

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Corbus Pharmaceuticals Holdings Inc (CRBP), where a total volume of 4,975 contracts has been traded thus far today, a contract volume which is representative of approximately 497,500 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 131.2% of CRBP's average daily trading volume over the past month, of 379,320 shares..