Benzinga's Top Pre-Market NASDAQ Losers (OVTI, CYTX, AMTD, LOGI)

OmniVision Technologies Inc OVTI dipped 4.64% to $34.51 in the pre-market session. OVTI purchased Eastman Kodak EK patents for $65 million. Cytori Therapeutics Inc CYTX fell 3.92% to $7.60 in the pre-market session. CYTX's trailing-twelve-month ROE is -286.17%. TD Ameritrade Holding Corporation AMTD moved down 2.43% to $20.87 in the pre-market session. AMTD's trailing-twelve-month operating margin is 35.64%. Logitech International SA LOGI dropped 2.15% to $14.3932 in the pre-market trading. LOGI shares have dropped 11.12% over the past 52 weeks, while the S&P 500 index has gained 12.21% in the same period. Read more from Benzinga's Markets.