Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Vista Outdoor Inc (VSTO), where a total volume of 2,373 contracts has been traded thus far today, a contract volume which is representative of approximately 237,300 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 47.5% of VSTO's average daily trading volume over the past month, of 499,265 shares..