Notable Monday Option Activity: GRPN, EPAY, SAVA

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Groupon Inc (GRPN), where a total of 6,334 contracts have traded so far, representing approximately 633,400 underlying shares. That amounts to about 84% of GRPN's average daily trading volume over the past month of 753,970 shares..