Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Exxon Mobil Corp (XOM), where a total volume of 104,247 contracts has been traded thus far today, a contract volume which is representative of approximately 10.4 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 61.7% of XOM's average daily trading volume over the past month, of 16.9 million shares..