Benzinga's Top Upgrades, Downgrades For April 23, 2018 By: Benzinga via Benzinga April 23, 2018 at 09:24 AM EDT Top Upgrades Citigroup upgraded Caterpillar Inc. (NYSE: CAT) from Neutral to Buy. Caterpillar shares rose 1.30 percent to ... Read More >> Related Stocks: 01 Communique Laboratory Inc Arconic Corp Boot Barn Holdings Inc Caterpillar Columbia Sprtswr Controladora Vuela Compaia DE ADR Coupa Software Inc Exxon Mobil Hanesbrands Inc Homology Medicines Inc Insmed Inc Kansas City Southern Lululemon Athletica MGM Resorts International Merck & Co Michael Kors Holdings Nautilus Group Petrobras - Petroleo Brasileiro S.A. Restaurant Brands International Spark Therap Stoneridge Inc SunTrust Banks Sunpower Corp Under Armour Unum Therapeutics Inc Veritone Inc Verizon Communications