A pedestrian walks past the NASDAQ building in New York City
A pedestrian walks past the Nasdaq building in New York. REUTERS

The top after-market NASDAQ Stock Market gainers are: Netlist, 21Vianet Group, Cytori Therapeutics, Swisher Hygiene, Acxiom, and Symantec. The top after-market NASDAQ Stock Market losers are: Gulf Resources, Urban Outfitters, Zillow, Arris Group, and Take-Two Interactive Software.

Gainers

Netlist Inc. (NLST) stock jumped 36.17 percent to $3.20 in the after-market trading. The company said it signed two memory technology collaboration agreement with International Business Machines Corp. (IBM) and Hewlett-Packard Co. (HPQ) to use its product HyperCloud technology with IBM's and HP's servers.T he agreement with IBM is non-exclusive, while the agreement with HP is exclusive for a period of time. There can be no assurance that the efforts undertaken under the agreement will result in any new revenues for the company, Netlist said in a filing with Securities and Exchange Commission.

IBM and Netlist have agreed to cooperate with respect to the qualification of HyperCloud technology for use with IBM servers and to engage in certain joint marketing efforts if qualification is achieved. HP and Netlist agreed to collaborate on the future use of HyperCloud load reduction and rank multiplication technologies for next generation server memory for HP. Both IBM and HP have agreed to commit resources and funds in support of the activities.

21Vianet Group, Inc. (VNET) stock soared 11.65 percent to $10.35 in the after-market trading. Profit for the third quarter was 81.54 million Chinese yuan or $12.79 million, compared to a loss of 38.13 million Chinese yuan last year. Earnings were 1.38 Chinese yuan or $0.22 per American Depository Share (ADS), while adjusted earnings were 0.96 Chinese yuan or $0.15 per ADS. Revenue surged 114.8 percent to 261.6 million Chinese yuan or $41.0 million. Looking ahead into the fourth quarter, the company expects revenue of $45.8 million to $46.7 million. For the full year 2011, the company expects revenue of $155.8 million to $156.8 million.

Cytori Therapeutics, Inc. (CYTX) stock grew 8.40 percent to $2.84 in the after-market trading. The shares regained after a 6.43 percent fall during Monday's regular trading.

Swisher Hygiene Inc. (SWSH) stock gained 6.27 percent to $4.24 in the after-market trading. Loss for the third quarter narrowed to $3.76 million or $0.02 per share from $4.14 million or $0.07 per share last year. Revenue grew to $67.20 million from $16.06 million. Looking ahead into the fiscal 2011, the company now expects revenue in excess of $220 million, with current annualized run-rate revenue now in excess of $320 million, compared to previous forecast of $200 million to $220 million, with annualized run-rate revenue in excess of $280 million.

Acxiom Corp. (ACXM) stock increased 4.09 percent to $13.50 in the after-market trading.

Symantec Corp. (SYMC) stock rose 3.90 percent to $17.60 in the after-market trading. Huawei Technologies Co. Ltd. said it agreed to buy Symantec's 49 percent stake in Huawei Symantec Technologies Co. Ltd., a joint-venture company formed between them, for $530 million. Following the completion of the agreed deal, Huawei Technologies will gain full ownership of Huawei Symantec. The deal is expected to close in the first quarter of 2012.

Losers

Gulf Resources, Inc. (GURE) stock fell 11.79 percent to $2.17 in the after-market trading. Profit for the third quarter was $5.58 million or $0.16 per share, lower than last year's $14.87 million or $0.43 per share. Adjusted earnings were $9.88 million or $0.28 per share, down from $14.87 million or $0.43 per share last year. Revenue fell 16 percent to $37.8 million. Looking ahead into the fiscal 2011, the company lowered its earnings guidance to range of $33.5 million to $35 million from previous forecast of $48 million to $49.5 million, while reaffirming its revenue outlook of $156 million to $158 million.

Urban Outfitters Inc. (URBN) stock slid 4.96 percent to $25.50 in the after-market trading. Profit for the third quarter was $50.7 million or $0.33 per share, down from $73.1 million or $0.43 per share last year. Sales rose 6 percent to $609.95 million. Analysts had expected profit of $0.32 per share on revenue of $626.43 million. Comparable retail segment sales, which include the direct-to-consumer channels, decreased 3 percent for the quarter, while comparable store sales fell 7 percent.

Zillow, Inc. (Z) stock declined 3.75 percent to $27.50 in the after-market trading.

Arris Group Inc. (ARRS) stock decreased 3.58 percent to $10.50 in the after-market trading.

Take-Two Interactive Software Inc. (TTWO) stock declined 2.97 percent to $14.05 in the after-market trading.