Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Science Applications International Corp (SAIC), where a total volume of 3,041 contracts has been traded thus far today, a contract volume which is representative of approximately 304,100 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 67% of SAIC's average daily trading volume over the past month, of 453,755 shares..