Watch These 8 Huge Call Purchases In Thursday Trade By: Benzinga via Benzinga May 11, 2017 at 04:12 AM EDT Benzinga's newsdesk monitors options activity to notice unusual patterns. These large volume (and often out of the money) trades ... Read More >> Related Stocks: AK Steel Holding Corp Callaway Golf Company ENSCO Plc Northern Dynasty Minerals Pandora Media Inc Petrobras - Petroleo Brasileiro S.A. Zynga Inc Cl A