Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga April 08, 2014 at 08:35 AM EDT Gigamon (NYSE: GIMO) dipped 23.28% to $20.10 in the pre-market session after the company lowered its revenue outlook for the latest ... Read More >> Related Stocks: Gilead Sciences Liveperson Inc Nordic American Tanker Shipping Ltd iPath Dow Jones-Goldman Sachs Crude Oil Fund