Benzinga's Top #PreMarket Gainers

Planar Systems

shares surged 50.27% to $5.56 in pre-market trading after the company reported better-than-expected fiscal fourth-quarter earnings and issued a strong Q1 outlook. Sierra Wireless

shares rose 20.20% to $31.90 in pre-market trading after the company reported upbeat Q3 results and issued a strong Q4 forecast. American Capital

shares gained 11.12% to $16.29 in the pre-market trading session after the company reported Q3 results and announced its plan to split into three companies. Whole Foods Market

shares jumped 8.28% to $43.30 in pre-market trading after the company beat fourth-quarter expectations and lifted its quarterly dividend by a penny.