Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in eHealth Inc (EHTH), where a total volume of 4,276 contracts has been traded thus far today, a contract volume which is representative of approximately 427,600 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 51.6% of EHTH's average daily trading volume over the past month, of 828,030 shares..