Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Scorpio Tankers Inc (STNG), where a total volume of 4,190 contracts has been traded thus far today, a contract volume which is representative of approximately 419,000 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 56.7% of STNG's average daily trading volume over the past month, of 739,610 shares..