Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Penske Automotive Group Inc (PAG), where a total volume of 5,137 contracts has been traded thus far today, a contract volume which is representative of approximately 513,700 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 250.9% of PAG's average daily trading volume over the past month, of 204,755 shares..