Notable Friday Option Activity: TNDM, AZO, GPN

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Tandem Diabetes Care Inc (TNDM), where a total volume of 7,481 contracts has been traded thus far today, a contract volume which is representative of approximately 748,100 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 47.1% of TNDM's average daily trading volume over the past month, of 1.6 million shares..