Benzinga's Top Upgrades, Downgrades For December 21, 2017 By: Benzinga via Benzinga December 21, 2017 at 09:30 AM EST Top Upgrades Analysts at Bank of America upgraded Discovery Communications Inc. (NASDAQ: DISCA) from Neutral to Buy. ... Read More >> Related Stocks: Allegiant Travel Com Axon Enterprise Inc Bright Horizons Family Solutions Inc Brooks Automation Concho Resources Inc Coty Inc Darden Restaurants Discovery Communications Hasbro JPMorgan Chase & Co LA Jolla Pharma Lazard Inc Mirati Therapeutics PG&E Corp Park Hotels & Resorts Inc Regions Financial Regis Corp Ring Energy Inc SunTrust Banks Syntel Inc Twenty-First Century Fox Wells Fargo