The top after-market NASDAQ stock market gainers are: Spreadtrum Communications, Identive Group, Allos Therapeutics, Flow International, and SuperMedia. The top after-market NASDAQ stock market losers are: Energy Recovery, Marvell Technology Group, Dot Hill Systems, BSQUARE, and EV Energy Partners.

Gainers

Spreadtrum Communications Inc. (SPRD) stock jumped 12.77 percent to $24.38 in the after-market trading, as its fourth quarter earnings exceeded Street view. Profit was $29.96 million or $0.56 per American Depositary Share (ADS), higher than $1.45 million or $0.03 per ADS last year. Adjusted profit was $32.72 million or $0.61 per ADS, higher than $2.91 million or $0.06 per ADS last year. Revenue surged 199.5 percent to $126.5 million. Analysts had expected profit of $0.52 per ADS on revenue of $122.23 million.

Spreadtrum expects first quarter revenue of $130 million to $135 million, while Street predicts $109.29 million. The company anticipates gross margin of 41.5 percent to 42.5 percent.

Identive Group, Inc. (INVE) stock climbed 8.15 percent to $3.45 in the after-market trading. Loss for the fourth quarter narrowed to $752,000 or 2 cents a share from $8.41 million or 34 cents a share last year. Adjusted profit was $196,000 or breakeven a share, compared to a loss of $8.16 million or 32 cents a share last year. Revenue rose to $27.81 million from $11.87 million.

Allos Therapeutics, Inc. (ALTH) stock grew 6.45 percent to $3.30 in the after-market trading. Fourth quarter loss narrowed to $18.1 million or 17 cents a share from $22.9 million or 22 cents a share last year. Sales rose to $11.7 million from $3.6 million. Analysts had expected a loss fo 18 cents a share on revenue of $11.2 million. The company expects fiscal 2011 total operating costs and expenses, excluding cost of sales and non-cash stock-based compensation expense, of about $95 million to $98 million.

Separately, Allos Therapeutics said it has reached an agreement with the U.S. FDA under its Special Protocol Assessment process for the design of the company's Phase 3 clinical trial of Folotyn in patients with previously undiagnosed peripheral T-cell lymphoma (PTCL). The study will seek to enroll newly diagnosed patients with PTCL who have achieved a response following initial treatment with a CHOP-based therapy.

The Phase 3 clinical trial will seek to establish the safety and efficacy of sequential Folotyn versus observation in patients with previously undiagnosed PTCL who have achieved a response following initial treatment with CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisone) or CHOP-based chemotherapy. The co-primary endpoints will be progression-free survival and overall survival. The company expects to initiate this Phase 3 clinical trial of Folotyn in 2011.

Flow International Corp. (FLOW) stock gained 3.66 percent to $4.25 in the after-market trading. Profit for the third quarter was $1.2 million or 3 cents a share, compared to a loss of $0.7 million or 2 cents a share last year. Revenue rose 27 percent to $57.5 million. Analysts had expected profit of 2 cents a share on revenue of $54.18 million.

SuperMedia Inc. (SPMD) stock increased 3.29 percent to $6.59 in the after-market trading.

Losers

Energy Recovery, Inc. (ERII) stock plunged 6.98 percent to $3.20 in the after-market trading, as it guided fiscal 2011 below Street view. The company expects fiscal 2011 loss of 13 cents to 19 cents a share and revenue of $36 million to $45 million, while Street predicts breakeven a share on revenue of $56.01 million.

Energy Recovery posted fourth quarter earnings of $496,000 or 1 cent a share, down from $1.65 million or 3 cents a share last year. Revenue fell to $13.01 million from $15.73 million. Analysts had expected breakeven a share on revenue of $18.06 million.

Marvell Technology Group Ltd. (MRVL) stock fell 6.26 percent to $17.08 in the after-market trading, as its fourth quarter earnings and revenue missed Street view. Adjusted profit was $273 million or 40 cents a share, compared to $266 million or 40 cents a share last year. Revenue rose 7 percent to $901 million. Analysts had expected profit of 42 cents a share on revenue of $925.64 million. The company said its board of directors authorized it to buyback up to an additional $500 million, for a total of $1 billion, of its outstanding common shares.

In the conference call, Marvell said it expects first quarter revenue of $800 million to $850 million, the midpoint representing an worse-than-expected 8 percent dip from the fourth quarter. The company expects stores to decline low- to mid-single digit sequentially, networking to be essentially flat and mobile and wireless to decline over 20 percent. The company expects adjusted earnings of 30 cents a share, plus or minus a couple of pennies. Street predicts profit of 37 cents a share on revenue of $889.94 million.

Dot Hill Systems Corp. (HILL) stock slid 5.16 percent to $2.94 in the after-market trading. Profit for the fourth quarter was $0.3 million or $0.01 a share, compared to a loss of $5.0 million or $0.11 a share last year. Adjusted profit was $2.0 million or $0.04 a share, compared to a loss of $2.7 million or $0.06 a share. Revenue rose to $65.4 million from $62.6 million. Excluding revenues from the terminated NetApp relationship, revenue would have been $52.9 million, up from $42.7 million.

BSQUARE Corp. (BSQR) stock declined 4.44 percent to $11.20 in the after-market trading. The company expects first quarter revenue to be roughly flat, gross margin to decline primarily as a result of the decrease in high-margin proprietary software revenue, and profitability to decline. BSQUARE reported fourth quarter earnings of $2.05 million or 19 cents a share, compared to a loss of $3.01 million or 30 cents a share last year. Revenue rose to $27.59 million from $15.19 million.

EV Energy Partners LP (EVEP) stock decreased 4.21 percent to $44.35 in the after-market trading. The company said it began an underwritten public offering of 3.0 million of its common units representing limited partner interests. The company plans to grant the underwriters a 30-day option to purchase up to 450,000 additional common units to cover over-allotments, if any.

EV Energy plans to use the net proceeds from the offering, including the proceeds from any exercise of the over-allotment option of common units, to repay indebtedness under its existing revolving credit facility.