Benzinga's Top #PreMarket Gainers

Shutterfly

shares surged 10.46% to $48.06 in pre-market trading. The rise in the stock may be attributed to unconfirmed report circulating that the company hired Qatalyst to handle a potential sale. Rackspace Hosting

shares jumped 8.44% to $36.60 in pre-market trading after TechCrunch reported that the company may take itself private. Constellation Brands

shares gained 6.36% to $94.00 in pre-market trading after the company reported upbeat results for its fiscal first quarter and lifted its FY15 forecast outlook. DragonWave

shares jumped 6.06% to $2.10 in pre-market trading after dropping 5.71% on Tuesday. SolarCity

shares gained 3.20% to $73.50 in pre-market trading. Canaccord Genuity initiated coverage on SolarCity with a Buy rating and a $94.00 price target.