Noteworthy Wednesday Option Activity: RRD, SRPT, PFSI

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Donnelley & Sons Company (RRD), where a total of 7,911 contracts have traded so far, representing approximately 791,100 underlying shares. That amounts to about 58.6% of RRD's average daily trading volume over the past month of 1.4 million shares..