Notable Thursday Option Activity: CATM, IBM, NTGR

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Cardtronics Inc (CATM), where a total volume of 1,311 contracts has been traded thus far today, a contract volume which is representative of approximately 131,100 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 46.2% of CATM's average daily trading volume over the past month, of 283,535 shares..