Benzinga's Top #PreMarket Gainers

shares jumped 20.88% to $7.93 in pre-market trading on strong holiday sales. J. C. Penney reported a 3.7% y/y rise in its holiday comparable store sales. The company also announced that it now projects to report Q4 comparable store sales at the upper end of its prior outlook range of 2% to 4%.

shares rose 9.51% to $54.00 in pre-market trading after the company reported better-than-expected earnings for its first fiscal quarter and raised its earnings forecast for FY 2015.

shares surged 7.53% to $29.13 in pre-market trading after the company announced upbeat results for its first fiscal quarter.

shares jumped 5.86% to $64.50 in pre-market trading after the company announced positive topline results from Phase 2 study.

shares gained 5.42% to $3.50 in the pre-market trading session after the company reported positive results from Phase 1b clinical trial evaluating APD334.