Noteworthy Wednesday Option Activity: RRGB, IRBT, C

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Red Robin Gourmet Burgers Inc (RRGB), where a total of 1,946 contracts have traded so far, representing approximately 194,600 underlying shares. That amounts to about 80.5% of RRGB's average daily trading volume over the past month of 241,780 shares..