The top after-market NYSE gainers on Monday are: Gushan Environmental Energy, China Digital TV Holding, Phoenix New Media, Gammon Gold and Beazer Homes USA. The top after-market NYSE losers are: Douglas Dynamics, Western Refining, Hewlett-Packard, Endeavor International Corp and Gerdau S.A.

Gainers:

Gushan Environmental Energy Ltd. (NYSE:GU) shares climbed 35.10 percent to $4.85 in post market trading session. The stock has a 52 week low of $2.95 and 52 week high of $6.50 and has $29.95 million market capitalization.

China Digital TV Holding Co., Ltd. (NYSE:STV) shares advanced 4.69 percent to $6.69 in aftermarket trading session. The company reported first quarter net income of $0.13 per share compared to $0.10 per share in the same quarter last year.

Phoenix New Media Ltd. (NYSE:FENG) shares gained 3.25 percent to $12.70 in post market trading session. Its shares plunged 6.11 percent in regular trading session after announcing that it has priced its initial public offering of 12,767,500 American depositary shares (ADSs) each representing eight Class A ordinary shares of the Company, at US$11.00 per ADS, with a total offering size of approximately US$140 million.

Gammon Gold Inc. (NYSE:GRS) shares advanced 3.19 percent to $9.86 in aftermarket trading session. The company stock was upgraded to “outperform” rating at Macquarie.

Beazer Homes USA, Inc. (NYSE:BZH) shares gained 3.03 percent to $3.74 in post market trading session. The stock has a 52 week low of $3.10 and 52 week high of $6.23 and has $276.56 million market capitalization.

Losers:

Douglas Dynamics, Inc. (NYSE:PLOW) shares slumped 8.16 percent to $14.75 in post market trading session. The company announced on Monday that it has launched a secondary offering of 5,000,000 shares of its common stock for sale by certain of its stockholders, including affiliates of Aurora Capital Group and Ares Management.

Western Refining, Inc. (NYSE:WNR) shares plunged 5.41 percent to $14.50 in aftermarket trading session.

Hewlett-Packard Co. (NYSE:HPQ) shares plunged 4.52 percent to $38.0 in post market trading session on news that Chief Executive Leo Apotheker warned of “another tough quarter” for the company.

Endeavor International Corp. (NYSE:END) shares declined 3.97 percent to $11.62 in aftermarket trading session. The stock has a 52 week low of $6.72 and 52 week high of $15.04 and has $425.04 million market capitalization.

Gerdau S.A. (NYSE:GGB) shares declined 2.52 percent to $10.04 in aftermarket trading session.

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