Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Antero Resources Corp (AR), where a total volume of 22,857 contracts has been traded thus far today, a contract volume which is representative of approximately 2.3 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 77.4% of AR's average daily trading volume over the past month, of 3.0 million shares..