Notable Tuesday Option Activity: AST, URI, X

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Asterias Biotherapeutics Inc (AST), where a total of 852 contracts have traded so far, representing approximately 85,200 underlying shares. That amounts to about 41.9% of AST's average daily trading volume over the past month of 203,430 shares..