The top after-market NASDAQ Stock Market gainers are: Yongye International, Global Sources, Sky-mobi, School Specialty, and Pantry. The top after-market NASDAQ Stock Market losers are: Gladstone Commercial, Diodes, Wi-LAN, SeaChange International, and Pharmasset.

Gainers

Yongye International, Inc. (YONG) stock grew 8.47 percent to $4.61 in the after-market trading. The company said it closed the previously announced $50 million equity investment by Morgan Stanley Private Equity Asia. The company also announced the appointment of Homer Sun, Managing Director of Morgan Stanley who leads Morgan Stanley Private Equity Asia's China Investments, to the board of directors of Yongye. We are pleased to announce the closing of this investment and the appointment of Mr. Sun to our board. We look forward to the future strategic cooperation with MSPE Asia as we continue to grow our business. We believe this transaction will not only provide us with the financial resources to expand our operations to meet the growing demand for our Shengmingsu agricultural nutrient products but also will further enhance our corporate governance, said Zishen Wu, Chief Executive Officer of Yongye International.

Global Sources Ltd. (GSOL) stock gained 2.27 percent to $9.67 in the after-market trading. China suppliers of tablet PCs are adding value with more functions and dropping prices to beat competition, as they ride on the coattails of the iPad's popularity, according to Global Sources' China Sourcing Report: Tablet PCs.

Sky-mobi Ltd. (MOBI) stock increased 2.26 percent to $7.25 in the after-market trading. The company said it has entered into a partnership agreement with Jiayuan.com International Ltd., operator of the largest online dating platform in China. Sky-mobi will collaborate with Jiayuan to develop a Sky-mobi-Jiayuan dating software application to be operated on Sky-mobi's Maopao mobile social network. The program will offer a wide range of dating and social networking features. Over the course of the agreement, the companies will also work together on promotions and user development.

School Specialty Inc. (SCHS) stock gained 2.15 percent to $13.75 in the after-market trading.

Pantry Inc. (PTRY) stock rose 1.83 percent to $17.77 in the after-market trading.

Losers

Gladstone Commercial Corp. (GOOD) stock fell 4.61 percent to $17.60 in the after-market trading. The company said it plans to sell 1 million shares of its common stock in an underwritten public offering. The company also intends to grant the underwriters a 30-day option to purchase up to 150,000 additional shares of common stock on the same terms and conditions to cover over-allotments, if any. Janney Montgomery Scott LLC is serving as the sole book-runner and lead manager for the offering. BB&T Capital Markets, a division of Scott & Stringfellow, LLC, J.J.B. Hilliard, W.L. Lyons, LLC and Wunderlich Securities, Inc. are serving as co-managers. The company plans to use the net proceeds from this offering to acquire additional properties, repay existing indebtedness (including a portion of the outstanding balance of its line of credit) and for general corporate purposes.

Diodes Inc. (DIOD) stock slid 3.62 percent to $26.37 in the after-market trading. The company said it has maintained its second-quarter revenue outlook of $170 million to $178 million, an increase of 5 percent to 10 percent sequentially, while Street predicts $174.32 million. The company said it lowered its second-quarter gross margin guidance to 32.5 percent plus or minus 1.5 percent, versus its previous guidance of comparable to the first quarter. The company said gross margin is being impacted by a mix shift due to a softening of demand and the slower than expected recovery from the previously disclosed manpower shortages at the company's China packaging facilities. The previous guidance for operating expenses, tax rate and shares used to calculate GAAP earnings per share remain unchanged, the company said.

Wi-LAN Inc. (WILN) stock declined 3.55 percent to $6.94 in the after-market trading.

SeaChange International Inc. (SEAC) stock decreased 2.87 percent to $9.81 in the after-market trading. Loss for the first quarter was $384,000 or $0.01 per share, compared to a profit of $20.3 million or $0.64 per share last year. Adjusted profit declined to $2.1 million or $0.06 per share from $3.1 million or $0.10 per share. Revenue fell to $52.1 million from $54.6 million. Analysts had expected profit of $0.02 per share on revenue of $50.6 million.

The company expects second quarter adjusted earnings of $0.13 to $0.19 per share and revenue of $53 million to $58 million, while Street predicts profit of $0.13 per share on revenue of $55.4 million. For the full year 2012, the company raised its adjusted earnings guidance to range of $0.66 to $0.74 per share from previous forecast of $0.62 to $0.70 per share, while Street predicts $0.68 per share.

Pharmasset, Inc. (VRUS) stock declined 2.54 percent to $119.54 in the after-market trading.