The top pre-market NASDAQ Stock Market gainers are: Allied Healthcare International, Sify Technologies, EV Energy Partners, Silicon Motion Technology, Gulfport Energy, and Yahoo!. The top pre-market NASDAQ Stock Market losers are: Vistaprint, STEC, Constant Contact, Oclaro, and DepoMed.

Gainers

Allied Healthcare International Inc. (AHCI) stock jumped 55.92 percent to $3.82 in the pre-market trading. The company agreed to be acquired by Saga Group Ltd. for $3.90 per share, which represents a premium of 59 percent to Allied's closing price on July 28 of $2.45. Allied said the aggregate purchase price for all outstanding shares of its common stock, including outstanding options, will be around $175 million. The terms of the agreement were unanimously approved by Allied's Board of Directors. Allied said the transaction is not subject to a financing condition. Completion of the transaction is expected to occur in the fourth calendar quarter of 2011.

Sify Technologies Ltd. (SIFY) stock advanced 19.90 percent to $4.82 in the pre-market trading. Loss for the first quarter narrowed to $1.91 million from $4.05 million last year. Revenue grew to $50.73 million from $38.64 million.

EV Energy Partners LP (EVEP) stock grew 9.60 percent to $70 in the pre-market trading. The company announced a cash distribution attributable to the second quarter of 2011 of $0.761 per unit for all of its outstanding units. The distribution will be payable on August 12, to unit holders of record at the close of business on August 8.

Silicon Motion Technology Corp. (SIMO) stock gained 9.59 percent to $11.88 in the pre-market trading. Adjusted profit for the second quarter was $9.88 million or $0.29 per American Depository Share (ADS), up from $2.91 million or $0.09 per ADS last year. Sales grew to $50.54 million from $32.49 million. Analysts had expected profit of $0.20 per share on revenue of $45.64 million. For the third quarter, the company expects revenue to be down 5 percent to up 5 percent sequentially. The company now expects full year 2011 revenue to be up 40 percent to 50 percent from last year, while Street predicts 39.20 percent growth.

Gulfport Energy Corp. (GPOR) stock increased 6.29 percent to $36.35 in the pre-market trading.

Yahoo! Inc. (YHOO) stock gained 4.89 percent to $14.16 in the pre-market trading. Alibaba Group, Yahoo!, and SoftBank signed an agreement in which Alibaba Group would continue to participate in Alipay's future financial performance, including a future IPO or other liquidity event. The agreement preserves the existing relationship between Taobao and Alipay. Alipay would continue to provide payment processing services to Alibaba Group and its units, including Taobao, on preferential terms.

Also, Alibaba Group would license to Alipay certain intellectual property and technology and provide certain software technology services to Alipay and its subsidiaries. Alipay would pay to Alibaba Group, prior to a liquidity event, a royalty and software technology services fee, consisting of an expense reimbursement and a 49.9% share of the consolidated pre-tax income of Alipay and its units, Yahoo! said. Moreover, Alibaba Group would receive no less than $2 billion and no more than $6 billion in proceeds from an IPO of Alipay or other liquidity event. The deal is expected to close by the end of 2011.

Losers

Vistaprint N.V. (VPRT) stock plummeted 35.14 percent to $27.50 in the pre-market trading. The company expects first quarter adjusted earnings of $0.20 to $0.30 per share and revenue of $207 million to $215 million, while Street predicts profit of $0.45 per share on revenue of $210.56 million. For the full year 2012, the company anticipates adjusted earnings of $1.58 to $1.68 per share and revenue of $980 million to $1.03 billion, while Street predicts profit of $2.65 per share on revenue of $977.35 million.

Vistaprint reported fourth quarter earnings of $14.4 million or $0.32 per share, compared to $11.7 million or $0.26 per share last year. Adjusted earnings were $0.43 per share, up from $0.38 per share last year. Revenue grew to $208.8 million from $164.3 million. Analysts had expected profit of $0.44 per share on revenue of $205.86 million.

STEC, Inc. (STEC) stock plunged 34.73 percent to $10.90 in the pre-market trading. The company expects third quarter adjusted earnings of $0.08 to $0.10 per share and revenue of $70 million to $72 million, while Street predicts profit of $0.31 per share on revenue of $95.96 million. The company reported second quarter adjusted earnings fo $11.9 million or $0.23 per share, up from $4.4 million or $0.09 per share last year. Revenue grew 34.6 percent to $82.5 million from $61.3 million. Analysts had expected profit of $0.24 per share on revenue of $83.28 million.

Constant Contact, Inc. (CTCT) stock fell 16.35 percent to $17.50 in the pre-market trading. The company expects third quarter adjusted earnings of $0.21 to $0.23 per share and revenue of $54.2 million to $54.7 million, while Street predicts profit of $0.26 per share on revenue of $55.78 million. For the full year 2011, the company narrowed its adjusted earnings guidance to range of $0.63 to $0.65 per share from previous forecast of $0.60 to $0.65 per share. The company lowered its full year 2011 revenue outlook to range of $214 million to $216 million from previous range of $217 million to $219 million. Street analysts predict profit of $0.63 per share on revenue of $217.79 million for the fiscal 2011.

Constant Contact reported second quarter earnings of $1.27 million or $0.04 per share, compared to a loss of $910,000 or $0.03 per share last year. Adjusted earnings were $4.52 million or $0.15 per share, up from $1.07 million or $0.04 per share last year. Revenue rose to $52.53 million from $42.46 million. Analysts had expected profit of $0.11 per share on revenue of $52.93 million.

Oclaro, Inc. (OCLR) stock tumbled 10.55 percent to $4.75 in the pre-market trading. The company expects first quarter revenue of $103 million to $113 million, while Street predicts $116.12 million. The company's adjusted loss for the fourth quarter widened to $10.03 million or $0.21 per share from $4.46 million or $0.09 per share last quarter. Revenue declined to $109.18 million from $115.68 million last quarter. Analysts had expected a loss of $0.14 per share on revenue of $111.02 million.

DepoMed Inc. (DEPO) stock declined 5.25 percent to $7.40 in the pre-market trading.

NASDAQ Stock Market Intellectual Property Yahoo Intellectual Property