Benzinga's Top Pre-Market Losers

NetApp Inc

dipped 17.07% to $27.25 in the pre-market session. NetApp issued a downbeat profit forecast for the fiscal first quarter. Signet Jewelers Ltd

moved down 12.04% to $42.00 in the pre-market session. Signet Jewelers reported a stronger-than-expected Q1 profit, but issued downbeat forecast for the second quarter. Tiffany & Co

shares fell 8.41% to $56.60 in the pre-market trading. Tiffany reported a weaker-than-expected first-quarter profit and lowered its 2012 profit forecast. American Capital Mortgage Investment Corp

dipped 3.32% to $23.03 in the pre-market session. MTGE announced its plans to make a public offering of 10,000,000 shares of its common stock.