Noteworthy Monday Option Activity: GNC, SAFT, BLOX

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in GNC Holdings Inc (GNC), where a total volume of 6,360 contracts has been traded thus far today, a contract volume which is representative of approximately 636,000 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 43.4% of GNC's average daily trading volume over the past month, of 1.5 million shares..