Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Occidental Petroleum Corp (OXY), where a total volume of 55,661 contracts has been traded thus far today, a contract volume which is representative of approximately 5.6 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 84.5% of OXY's average daily trading volume over the past month, of 6.6 million shares..