Benzinga's Top Pre-Market Gainers

Sunshine Heart SSH surged 15.63% to $7.62 in the pre-market session. Sunshine Heart has received unconditional approval from the FDA to commence its pivotal U.S. trial for its flagship C-Pulse® Heart Assist System. Krispy Kreme Doughnuts KKD moved up 11.67% to $8.42 in the pre-market session. Krispy Kreme Doughnuts reported an upbeat Q3 profit and lifted its forecast for 2013. Groupon GRPN added 7.57% to $3.34 in the pre-market session. Hedge fund Tiger Global bought a 9.9% stake in Groupon. Qihoo 360 Technology Co QIHU soared 7.17% to $25.40 in the pre-market trading. Qihoo 360 reported an 18% rise in its third-quarter profit.