Watch These 5 Huge Put Purchases In Wednesday Trade By: Benzinga via Benzinga September 20, 2017 at 04:10 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: Baidu.com SP ADR Ballard Power Sys Bitauto Holdings Ltd Facebook UnitedHealth Group