Notable Thursday Option Activity: RLYP, CMG, URI

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Relypsa, Inc (RLYP), where a total of 61,318 contracts have traded so far, representing approximately 6.1 million underlying shares. That amounts to about 254.3% of RLYP's average daily trading volume over the past month of 2.4 million shares..