The top after-market NASDAQ stock market gainers are: Netease.com, ArQule, Biogen Idec, priceline.com, and Leap Wireless International. The top after-market NASDAQ stock market losers are: AXT, InterDigital, POZEN, Calumet Specialty Products Partners, and United Online.

Gainers

Netease.com Inc. (NTES) stock jumped 11.47 percent to $47.80 in the after-market trading, as its fourth quarter earnings exceeded Street view. Earnings per American depositary share or ADS were 83 cents, higher than last year's 67 cents. The latest quarter results included a net foreign exchange loss of $5.5 million. Revenue was 1.63 billion yuan or $247.54 million, compared to 1.25 billion yuan last year. Analysts had expected profit of 70 cents a share on revenue of $220.17 million.

Shares of ArQule Inc. (ARQL) grew 4.85 percent to $6.27 in the after-hours trading.

Biogen Idec Inc. (BIIB) stock increased 4.84 percent to $69.99 in the after-market session.

Shares of priceline.com Inc. (PCLN) gained 4.67 percent to $445.90 in the after-hours session, as it guided first quarter earnings above Street view. The company expects first quarter adjusted earnings of $2.34 to $2.44 a share and revenue growth of 29 percent to 34 percent over last year, while Street predicts profit of $2.31 a share on revenue of $741.21 million with revenue growth of 26.80 percent.

Priceline.com posted fourth quarter adjusted profit of $175.01 million or $3.40 a share, up from $101.65 million or $1.99 a share last year. Revenue grew 35 percent to $731.32 million. Analysts had expected profit of $3.09 a share on revenue of $734.86 million.

Leap Wireless International Inc. (LEAP) stock rose 4.17 percent to $12.73 in the after-market trading.

Losers

Shares of AXT Inc. (AXTI) plunged 8.49 percent to $7.65 in the after-hours trading, as it guided first quarter earnings and revenue below Street view. The company expects first quarter earnings of 11 cents to 13 cents a share and revenue of $24 million to $25 million, while Street predicts profit of 14 cents a share on revenue of $27.37 million.

AXT posted fourth quarter profit of $4.9 million or 15 cents a share, up from $2.8 million or 9 cents a share last year. Revenue rose 51 percent to $26.86 million. Analysts had expected profit of 16 cents a share on revenue of $28.90 million.

InterDigital, Inc. (IDCC) stock tumbled 8.17 percent to $48.80 in the after-market session, as its fourth quarter earnings missed Street view. Profit was $34.3 million or 76 cents a share, down from $38.87 million or 88 cents a share last year. Revenue rose 25 percent to $95.3 million. Analysts had expected profit of 79 cents a share on revenue of $93.94 million. The company expects first quarter revenue of $76 million to $77 million, below Street view of $86.70 million.

Shares of POZEN, Inc. (POZN) slid 7.75 percent to $5 in the after-hours session. In a regulatory filing, the company said it has been informed by GlaxoSmithKline (GSK) that FDA has not accepted its submission of clinical study data with respect to the use of its Treximet migraine drug in a pediatric population. Regulatory exclusivity on the drug is set to expire on April 15.

Calumet Specialty Products Partners LP (CLMT) stock declined 5.37 percent to $21.34 in the after-market trading, following its commencement of underwritten public offering of 4.5 million common units. The company also plans to grant the underwriters the option to purchase up to 675,000 additional common units.

Calumet said it plans to use the net proceeds from this offering to repay borrowings outstanding under its revolving credit facility. Calumet said if there is any additional net proceeds, it will be used for general partnership purposes, including working capital, capital expenditures and acquisitions.

Shares of United Online, Inc. (UNTD) decreased 4.29 percent to $6.47 in the after-hours trading. Adjusted profit for the fourth quarter was $26.5 million or 30 cents a share, down from $34.1 million or 39 cents a share last year. Revenue fell 7 percent to $232.6 million. Analysts had expected profit of 26 cents a share on revenue of $226.65 million. The company expects first quarter revenue of $234 million to $239 million, while Street predicts $238.32 million.