Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Delta Air Lines Inc (DAL), where a total volume of 100,782 contracts has been traded thus far today, a contract volume which is representative of approximately 10.1 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 117.2% of DAL's average daily trading volume over the past month, of 8.6 million shares..