Noteworthy Monday Option Activity: KCG, XON, WWE

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in KCG Holdings Inc (KCG), where a total of 4,555 contracts have traded so far, representing approximately 455,500 underlying shares. That amounts to about 97.8% of KCG's average daily trading volume over the past month of 465,625 shares..