Benzinga's Top Upgrades, Downgrades For March 13, 2018 By: Benzinga via Benzinga March 13, 2018 at 09:19 AM EDT Top Upgrades Cowen & Co. upgraded Century Aluminum Co (NASDAQ: CENX) from Market Perform to Outperform. Century Aluminum ... Read More >> Related Stocks: Barrick Gold Corp CF Industries Holdings Centennial Resource Development Inc Century Aluminum C Chegg Inc Cigna Corp Cno Financial Group Continental Building Products Cooper Tire & Rubber Company Coupa Software Inc Cutera Inc Five9 Inc Gms Inc Installed Building Products Kosmos Energy Ltd Lincoln Elec Holdings Mdc Holdings Ord Shs Oclaro Pampa Energia S.A. ADR Piedmont Office Realty Trust Totalenergies Se ADR United States Steel Corp Uscf Gold Strategy Plus Income Fund Verizon Communications Vocera Communications Inc Weride Inc