The top pre-market NASDAQ stock market gainers are: Star Scientific, A-Power Energy Generation, EMCORE, Gulfport Energy and JA Solar Holdings. The top pre-market NASDAQ stock market losers are: USA Technologies, Neutral Tandem, NXP Semiconductors, Fushi Copperweld and Camtek.

Gainers

Star Scientific, Inc. (NASDAQ:CIGX) shares climbed 11.86 percent to $3.30 in pre-market trading session on news that the U.S. Patent & Trademark Office confirmed the validity of each of the claims involved in the reexamination of two of its patents.

A-Power Energy Generation Systems, Ltd. (NASDAQ:APWR) shares surged 8.94 percent to $5.12 in pre-market trading session after the company said it signed a contract for about $30.5 million to develop a biomass power plant in Shandong province in China.

EMCORE Corp. (NASDAQ:c) shares gained 5.79 percent to $2.56 in pre-market trading session. The company stock surged more than 79 percent in the last two months.

Gulfport Energy Corp. (NASDAQ:GPOR) shares advanced 5.44 percent to $26.75 in pre-market trading session as its fourth quarter earnings beats estimates. Its fourth quarter net income rose to $14.3 million or $0.32 per share compared to $9.1 million or $0.21 per share in the same quarter last year, while analysts’ expected net income of $0.29 per share.

JA Solar Holdings, Co., Ltd. (NASDAQ:JASO) shares gained 4.28 percent to $6.58 in pre-market trading session.

Losers

USA Technologies, Inc. (NASDAQ:USAT) shares plunged 14.73 percent to $2.20 in pre-market trading session. The company announced that it has signed a securities purchase agreement with institutional investors to purchase $10.7 million of common stock in a private placement.

Neutral Tandem, Inc. (NASDAQ:TNDM) shares slumped 10.91 percent to $15.10 in pre-market trading session. The company reported fourth quarter net income of $6.08 million or $0.18 per share compared to $10.51 million or $0.31 per share in the same quarter last year.

NXP Semiconductors N.V. (NASDAQ:NXPI) shares declined 5.32 percent to $26.00 in pre-market trading session on rumors that the company's NFC technology will not be a part of Apple’s next iPhone.

Fushi Copperweld, Inc. (NASDAQ:FSIN) shares declined 6.53 percent to $8.81 in pre-market trading session as its full year earnings guidance fell short of analysts’ estimates. The company expects fiscal 2011 earnings in the range of $1.15 to $1.25 per share, while analysts expected earnings of $1.43 per share.

Camtek Ltd. (NASDAQ:CAMT) shares declined 3.69 percent to $3.66 in pre

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