Benzinga's Top Pre-Market NASDAQ Losers

DragonWave Inc DRWI dipped 7.44% to $5.85 in the pre-market session. DRWI announced the resignation of its vice-president of worldwide sales Brian McCormack. Aixtron SE AIXG dropped 4.36% to $31.79 in the pre-market trading. AIXG's PEG ratio is 6.92. OmniVision Technologies Inc OVTI moved down 3.61% to $33.42 in the pre-market session. OVTI's trailing-twelve-month ROA is 8.59%. WPP plc WPPGY fell 2.74% to $61.15 in the pre-market session. Analysts at Morgan Stanley downgraded WPP from “overweight” to “equal-weight.”