Benzinga's Top #PreMarket Gainers

Chimerix

shares jumped 8.31% to $35.99 in pre-market trading on positive brincidofovir data. Symantec

gained 4.31% to $24.19 in pre-market trading. Bloomberg reported that Symantec is exploring split into security and storage companies, according to sources. SolarCity

shares rose 3.37% to $56.39 in pre-market trading after the company announced a MyPower solar financing option. Costco Wholesale

shares jumped 2.50% to $128.40 in pre-market trading after the company reported stronger-than-expected earnings for the fourth quarter.