Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Spark Energy Inc (SPKE), where a total volume of 1,747 contracts has been traded thus far today, a contract volume which is representative of approximately 174,700 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 130.7% of SPKE's average daily trading volume over the past month, of 133,620 shares..