The top after-market NASDAQ stock market gainers are: Semtech, China Lodging Group, Fuel-Tech, China Sky One Medical, and Iridium Communications. The top after-market NASDAQ stock market losers are: Coldwater Creek, The Children's Place Retail Stores, SMTC, SIGA Technologies, and Columbia Laboratories.

Gainers

Semtech Corp. (SMTC) stock jumped 10.09 percent to $24.77 in the after-market trading, as it guided first quarter earnings and revenue above Street view. The company expects first quarter adjusted earnings of 41 cents to 44 cents a share and sales of $117 million to $121 million, while Street predicts profit of 40 cents a share on revenue of $114.40 million.

Semtech posted fourth quarter adjusted earnings of $31 million or 47 cents a share, up from $18.9 million or 30 cents a share last year. Revenue rose 36.8 percent to $116.3 million. Analysts had expected profit of 41 cents a share on revenue of $113.29 million.

China Lodging Group, Ltd. (HTHT) stock gained 5.57 percent to $18.95 in the after-market trading. Adjusted profit for the fourth quarter was 38.36 million yuan or 0.62 yuan per American Depository Share (ADS) ($5.81 million or $0.09 per ADS), compared to 23.12 million yuan or 0.49 yuan per ADS last year. Net revenue rose 29.2 percent to 452.63 million yuan ($68.58 million), while total revenue rose 29.2 percent to 478.6 million yuan ($72.5 million). Analysts had expected profit of $0.06 per ADS on revenue of $69.90 million.

China Lodging expects to achieve net revenues in the range of 410 million yuan to 430 million yuan in the first quarter of 2011, representing a 20 percent to 26 percent growth from last year. For the full year 2011, the company expects net revenues to grow 34 percent to 38 percent, while Street predicts revenue growth of 32.60 percent.

Fuel-Tech, Inc. (FTEK) stock increased 4.94 percent to $8.50 in the after-market trading, as its fourth quarter earnings and revenue exceeded Street view. Profit was $1.03 million or 4 cents a share, up from $232,000 or 1 cent a share last year. Revenue rose 34 percent to $25.0 million. Analysts had expected profit of 2 cents a share on revenue of $21.29 million.

With respect to 2011, we believe that revenues and profits will exceed 2010 results as APC orders steadily improve, the result of upcoming regulations in the U.S. and China, and FUEL CHEM announcements are forthcoming, as utilities strive to enhance fuel flexibility by adding Powder River Basin and Illinois Basin coals to their fuel mix, Fuel-Tech's Chief Executive Officer Douglas Bailey said.

China Sky One Medical, Inc. (CSKI) stock rose 4.38 percent to $5.96 in the after-market trading.

Iridium Communications Inc. (IRDMW) stock gained 3.17 percent to $2.60 in the after-market trading.

Losers

Coldwater Creek Inc. (CWTR) stock plunged 12.37 percent to $2.55 in the after-market trading, as its fourth quarter loss was wider than Street view. Loss widened to $37.04 million or $0.40 a share from $9.68 million or $0.11 a share last year. The latest quarter results included a non-cash charge of $2.9 million or $0.03 a share, related to certain retail store asset impairments, compared to $0.6 million or $0.01 a share last year. Sales fell 20.8 percent to $252.10 million. Analysts had expected a loss of $0.26 a share on revenue of $282.75 million.

We expect our sales trends to remain challenging in the near term and expect the first steps of improvement to come as our summer product begins to arrive in our stores, Coldwater Creek said in the conference call. The company also said it was not giving exact earnings or sales outlook at this time citing 'reduced visibility' regarding the timing of its efforts to turnaround its business.

The Children's Place Retail Stores, Inc. (PLCE) stock tumbled 9.31 percent to $43.82 in the after-market trading, as it guided first quarter and fiscal 2011 earnings below Street view. The company expects first quarter earnings from continuing operations of $1.00 to $1.05 a share, assuming negative low-single digit comparable retail sales, while Street predicts $1.12 a share. The company projects fiscal 2011 earnings from continuing operations of $3.05 to $3.25 a share, assuming flat comparable retail sales, while Street predicts $3.32 a share.

Children's Place Retail posted fourth quarter adjusted earnings from continuing operations of $32.3 million or $1.22 a share, up from $28.5 million or $1.03 a share last year. Sales declined 2.1 percent to $453.17 million. Analysts had expected profit of $1.01 a share on revenue of $468.54 million. Comparable retail sales, including online sales, dropped 5.9 percent. Comparable store sales declined 9 percent in the U.S. and 6.2 percent in Canada, while comparable online sales grew 31.7 percent.

SMTC Corp. (SMTX) stock slid 6.61 percent to $3.25 in the after-market trading. Profit for the fourth quarter was $4.52 million or 28 cents a share, up from $2.18 million or 15 cents a share last year. The latest quarter results included a favorable $2.8 million income tax adjustment related to the expected future usage of certain income tax loss carry-forwards. Revenue rose 26.2 percent to $64.63 million. Gross margin declined to 10.7 percent from 11.5 percent.

SIGA Technologies, Inc. (SIGA) stock declined 5.82 percent to $14.40 in the after-market trading. Loss for the fourth quarter was $13.58 million or 29 cents a share, compared to a profit of $2.45 million or 8 cents a share last year. Revenue declined to $3.06 million from $3.96 million. Analysts had expected profit of 3 cents a share on revenue of $10.03 million.

Columbia Laboratories Inc. (CBRX) stock decreased 4.89 percent to $3.50 in the after-market trading.