Benzinga's Top #PreMarket Gainers

Arotech

shares gained 6.96% to $5.07 in the pre-market after rising 0.42% on Monday. A. Schulman

shares gained 6.43% to $38.66 in the pre-market trading session after the company reported an upbeat fiscal second-quarter profit and lifted its full-year earnings forecast. The company expected earnings of $2.23 to $2.28 per share, versus analysts' estimates of $2.16 per share. BioScrip

shares jumped 5.52% to $7.17 in pre-market trading after dropping 4.03% on Monday. FuelCell Energy

surged 4.82% to $2.39 in pre-market trading after falling 5.39% on Monday.