Noteworthy Thursday Option Activity: DNKN, SGC, Z

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Dunkin' Brands Group Inc (DNKN), where a total volume of 4,461 contracts has been traded thus far today, a contract volume which is representative of approximately 446,100 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 56% of DNKN's average daily trading volume over the past month, of 796,890 shares..