Benzinga's Top #PreMarket Gainers

Exa Corp EXA shares climbed 14.52 percent to $12.54 in pre-market trading after dropping 1.26 percent on Monday. American Capital Mortgage Investment Crp MTGE shares rose 1.89 percent to $16.71 in pre-market trading after gaining 0.80 percent on Monday. ARM Holdings plc (ADR) ARMH gained 1.82 percent to $49.20 in pre-market trading. Morgan Stanley upgraded ARM Holdings from Equalweight to Overweight. Marvell Technology Group Ltd. MRVL shares rose 1.81 percent to $13.50 in pre-market trading. Oppenheimer upgraded Marvell Technology Group from Underperform to Perform Horizon Pharma PLC HZNP shares climbed 1.30 percent to $34.99 in pre-market trading after dropping 0.95 percent on Monday.