Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Chevron Corporation (CVX), where a total volume of 34,110 contracts has been traded thus far today, a contract volume which is representative of approximately 3.4 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 49.8% of CVX's average daily trading volume over the past month, of 6.8 million shares..