Watch These 7 Huge Put Purchases In Friday Trade By: Benzinga via Benzinga July 22, 2016 at 01:54 AM EDT Benzinga's newsdesk monitors options activity to notice unusual patterns. These large volume (and often out of the money) ... Read More >> Related Stocks: Armstrong World Industries Inc Caterpillar Expedia GameStop Corp Infinera Corp Linear Technology Corp Pattern Energy Cl A