Benzinga's Top Downgrades By: Benzinga via Benzinga September 08, 2015 at 09:43 AM EDT Analysts at Cowen & Company downgraded Diamondback Energy Inc (NASDAQ: FANG) from Outperform to Market Perform. The target price for ... Read More >> Related Stocks: Callon Petroleum Company Denbury Resources Diamondback Energy EOG Resources Infinera Corp Marvell Technology Inc