Benzinga's Top Upgrades, Downgrades For November 21, 2017 By: Benzinga via Benzinga November 21, 2017 at 08:56 AM EST Top Upgrades Analysts at Credit Suisse upgraded AK Steel Holding Corporation (NYSE: AKS) from Neutral to Outperform. AK Steel ... Read More >> Related Stocks: AK Steel Holding Corp Block Inc Booz Allen Hamilton Holding Corp Callon Petroleum Company Cavium, Inc. - Common Stock Colfax Corp Comcast Corp Copa Holdings S.A. Cray Inc Deere & Co Forescout Technologies Inc Fortuna Silver Mines GTX Inc Hibbett Inc KMG Chemicals Kitov Pharma Ltd Marvell Technology Inc Nexa Resources S.A. Planet Fitness Ryerson Holding Corp SS&C Technologies Southwestern Energy Sunesis Pharmaceutic United Rentals Veritiv Corp