Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Tenneco Inc (TEN), where a total volume of 4,726 contracts has been traded thus far today, a contract volume which is representative of approximately 472,600 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 53.2% of TEN's average daily trading volume over the past month, of 888,480 shares..