Benzinga's Top Pre-Market Gainers

Zhongpin HOGS surged 13.72% to $12.35 in the pre-market session. Zhongpin entered into a definitive agreement and plan of merger with Golden Bridge Holdings Limited, Golden Bridge Merger Sub Limited, and Mr. Xianfu Zhu, the Company's Chairman and CEO. James River Coal Co JRCC moved up 6.02% to $2.64 in the pre-market session. Analysts at Raymond James upgraded James River Coal from “market perform” to “outperform.” Sequenom SQNM added 4.46% to $4.45 in the pre-market session. Analysts at Stephens upgraded Sequenom from “equal weight” to “overweight.” Facebook FB soared 3.21% to $24.77 in the pre-market trading. Analysts at Bernstein upgraded Facebook from “market perform” to “outperform.”