Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Avis Budget Group Inc (CAR), where a total volume of 2,700 contracts has been traded thus far today, a contract volume which is representative of approximately 270,000 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 49.4% of CAR's average daily trading volume over the past month, of 546,360 shares..