Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in ASGN Inc (ASGN), where a total volume of 6,336 contracts has been traded thus far today, a contract volume which is representative of approximately 633,600 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 156.5% of ASGN's average daily trading volume over the past month, of 404,860 shares..