Watch These 8 Huge Call Purchases In Friday Trade By: Benzinga via Benzinga October 13, 2017 at 04:17 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: General Motors Mannkind Corp Snap Inc Tg Therapeutics Viacom Vipshop Holdings Ltd ADR