Benzinga's Top #PreMarket Losers

Coupons.com IncorporatedCOUP shares dropped 31.77% to $9.90 in pre-market trading after the company reported a Q4 loss of $0.02 per share on sales of $60 million. The company issued a weak revenue forecast and announced a $50 million buyback plan, RedHill Biopharma Ltd. RDHL shares fell 17.24% to $12.00 in pre-market trading after the company announced a proposed public offering of its American Depository shares. Camtek Ltd. CAMT fell 8.43% to $2.92 in pre-market trading on unfavorable court ruling in patent infringement case vs Rudolph Technologies. Allison Transmission Holdings Inc ALSN shares dropped 7.69% to $30.00 in pre-market. Allison Transmissions reported Q4 earnings of $0.28 per share on sales of $$544.4 million and issued a weak revenue forecast. RetailMeNot, Inc. SALE shares declined 5.62% to $14.60 in pre-market trading. RetailMeNot reported stronger-than-expected earnings for the fourth quarter, but issued a weak revenue forecast.