The top pre-market NASDAQ Stock Market gainers are: Global Traffic Network, AMAG Pharmaceuticals, Allscripts Healthcare Solutions, InterDigital, and ZST Digital Networks. The top pre-market NASDAQ Stock Market losers are: Smith Micro Software, MicroStrategy, OpenTable, Sonus Networks, Garmin, and Dunkin' Brands Group.

Gainers

Global Traffic Network Inc. (GNET) stock jumped 19.62 percent to $13.96 in the pre-market trading. The company said it agreed to be acquired by an affiliate of GTCR, LLC, a leading private equity firm. Global stockholders will receive $14.00 in cash for each share of Global's common stock, which represents about a 20.0 percent premium over the closing price on August 2 and a 22.7 percent premium based on the 60-day volume weighted average price of $11.41. The acquisition of Global will be completed through a cash tender offer for all outstanding shares of Global's common stock that is expected to commence shortly.

Upon completion of the transaction, Global Traffic Network will become a private company, controlled by an affiliate of GTCR. The transaction is expected to be completed by the fourth quarter of 2011. Global's Board of Directors has, based on the unanimous recommendation of a Special Committee comprised solely of independent directors, approved the merger agreement and the transactions contemplated thereby. Subject to certain requirements of the merger agreement, Global said it may negotiate with parties that submit qualifying competing proposals during the initial solicitation period for a period expiring on October 1, 2011.

AMAG Pharmaceuticals, Inc. (AMAG) stock grew 11.19 percent to $16 in the pre-market trading. The company received an unsolicited acquisition proposal from MSMB Capital Management to buy all outstanding common shares of AMAG for $18 per share in cash or an aggregate of $378 million. This proposal represents about 25 percent premium above the closing price of AMAG stock of $14.39 on August 2. MSMB's offer is conditioned on completion of cursory due diligence and other customary provisions.

"MSMB is a long-term investor in AMAG and believes that the management's current strategy does not protect the interests of AMAG's stockholders or ensure AMAG's long-term viability. I believe that our offer is superior and more beneficial to AMAG's stockholders than the proposed no-premium merger between AMAG and Allos Therapeutics," said Martin Shkreli, Chief Investment Officer of MSMB Capital Management LLC.

Allscripts Healthcare Solutions, Inc. (MDRX) stock grew 8.90 percent to $18.23 in the pre-market trading. Adjusted profit was $42.5 million or $0.22 per share, up from $35.4 million or $0.18 per share last year. Revenue surged to $356.8 million from $191.4 million. Analysts had expected profit of $0.22 per share on revenue of $355.8 million. For the fiscal 2011, the company now expects adjusted earnings of $0.88 to $0.90 per share, compared to previous forecast of $0.86 to $0.90 per share. The company now anticipates 2011 adjusted revenue outlook of $1.44 billion to $1.45 billion, compared to previous outlook of $1.425 billion to $1.45 billion. Street analysts predict profit of $0.90 per share on revenue of $1.44 billion.

InterDigital, Inc. (IDCC) stock gained 7.58 percent to $68 in the pre-market trading. Samsung Electronics is examining InterDigital's patent portfolio after being approached to make a bid, the Bloomberg reported citing people familiar with the matter. Samsung is looking at the patents along with Apple Inc. (AAPL), Google Inc. (GOOG) and other potential bidders.

ZST Digital Networks, Inc. (ZSTN) stock increased 5.17 percent to $3.46 in the pre-market trading. Profit for the second quarter was $6.37 million or $0.55 per share, up from $5.20 million or $0.45 per share last year. Revenue rose to $41.41 million from $33.05 million. Analyst had expected profit of $0.47 per share on revenue of $36.35 million. For the fiscal 2011, the company reiterated its revenue guidance of $160 million to $175 million and its earnings outlook of $28 million to $30 million. Street analyst predicts profit of $2.27 per share on revenue of $172.90 million for 2011.

Losers

Smith Micro Software Inc. (SMSI) stock plunged 18.92 percent to $2.70 in the pre-market trading. Adjusted loss for the second quarter was $5.21 million or $0.15 per share, compared to a profit of $6.83 million or $0.20 per share last year. Revenue fell to $16.11 million from $31.36 million. Analysts had expected a loss of $0.11 per share on revenue of $17.81 million. For the fiscal third quarter, the company expects revenue of $15 million to $20 million, while Street predicts $23.68 million.

MicroStrategy Inc. (MSTR) stock fell 10.37 percent to $136.17 in the pre-market trading. Profit for the second quarter was $2.9 million or $0.26 per share, down from $11.6 million or $0.97 per share last year. Revenue rose 28 percent to $138.2 million. Analysts had expected profit of $0.57 per share on revenue of $130.07 million.

OpenTable, Inc. (OPEN) stock tumbled 8.93 percent to $62.75 in the pre-market trading. Adjusted profit for the second quarter was 8.1 million or $0.33 per share, up from $3.6 million or $0.15 per share last year. Revenue grew 53 percent to $34.3 million. Analysts had expected profit of $0.27 per share on revenue of $35.31 million.

Separately, OpenTable said it has appointed Duncan Robertson as its Chief Financial Officer, effective August 23. Robertson succeeds Roberts, who was promoted to president and CEO in early June. He comes to OpenTable after co-founding and serving as CFO of mobile application software company SnapStick, Inc.

Sonus Networks, Inc. (SONS) stock decreased 8.76 percent to $2.50 in the pre-market trading. Loss for the second quarter was $5.9 million or $0.02 per share, compared to a profit of $0.3 million or break-even per share last year. Revenue fell to $51.8 million from $61.2 million. Analysts had expected profit of $0.01 per share on revenue of $65.9 million. For the full year 2011, the company reiterated its revenue guidance of $265 million to $285 million, representing a growth of 6 percent to 14 percent, while Street predicts $274.91 million on revenue growth of 10.30 percent.

Garmin Ltd. (GRMN) stock declined 7.77 percent to $29.08 in the pre-market trading. Pro-forma earnings for the second quarter were $122.06 million or $0.63 per share, down from $170.6 million or $0.85 per share last year. Sales fell 8 percent to $674 million. Analysts had expected profit of $0.66 per share on revenue of $633.75 million. For the full year 2011, the company now expects pro-forma earnings of $2.00 to $2.15 per share and revenue of $2.5 billion to $2.6 billion, while Street predicts profit of $2.48 per share on revenue of $2.52 billion.

Dunkin' Brands Group (DNKN) stock declined 4.90 percent to $26.40 in the pre-market trading. Profit for the second quarter was $17.16 million, down from $17.34 million last year, while adjusted profit declined to $24.72 million from $25.56 million. Revenue grew to $156.97 million from $150.42 million. Global system-wide sales grew about 6.9 percent. Consolidated U.S. comparable store sales was up 3.2 percent.

"We delivered strong results for the quarter as a result of our continued focus on driving comparable store sales, expanding contiguously in the U.S., and accelerating international growth across both brands," said Nigel Travis, Chief Executive Officer, Dunkin' Brands, Inc. and President, Dunkin' Donuts.

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