Benzinga's Top Pre-Market Losers

Red Hat (NYSE: RHT ) dipped 10.09% to $47.59 in the pre-market session after the company reported Q2 results. Piper Jaffray downgraded the stock from “overweight” to “neutral.” F5 Networks (NASDAQ: FFIV ) shares fell 1.87% to $87.50 in the pre-market trading. Goldman Sachs downgraded the stock from “buy”