The top after-market NYSE gainers on Thursday are: Advanced Micro Devices, Radian Group, Gardner Denver, Western Digital, Dupont Fabros Technology, NCR Corp, HealthSouth, Eastman Kodak and Red Hat.

Advanced Micro Devices, Inc. (NYSE:AMD) shares surged 5.54 percent to $6.86 in post market trading session. The company swung to second quarter net profit of $61 million or $0.08 per share compared to a net loss of $43 million or $0.06 per share in the same quarter last year. The company expects revenue to increase around 10 percent sequentially in the third quarter.

Radian Group Inc. (NYSE:RDN) shares advanced 5.04 percent to $3.54 in aftermarket trading session. The company stock plunged more than 6 percent in regular trading session.

Gardner Denver, Inc. (NYSE:GDI) shares gained 4.3 percent to $89.46 in aftermarket trading session. Its second quarter net income surged to $67.1 million or $1.27 per share from $37.3 million or $0.71 per share in the same quarter last year.

Western Digital Corp. (NYSE:WDC) shares gained 3.3 percent to $36.29 in post market trading session. The company reported fourth quarter net income of $158 million or $0.67 per share compared to $265 million or $1.13 per share in the quarter last year, while analysts’ expected the company to report net income of $0.65 per share.

Dupont Fabros Technology, Inc. (NYSE:DFT) shares advanced 2.52 percent to $26.81 in post market trading session. FBR Capital Markets Reiterates shares of DFT with “outperform” rating.

NCR Corp. (NYSE:NCR) shares gained 2.11 percent to $19.81 in post market trading session. Its second quarter net income rose to $33 million or $0.21 per share from $31 million or $0.19 per share in same period a year-ago.

The company raised its fiscal 2011 earnings outlook to a range of $174 to $189 million from its earlier estimation of $170 to $185 million.

HealthSouth Corp. (NYSE:HLS) shares advanced 2.05 percent to $25.87 in post market trading session.

Eastman Kodak Co. (NYSE:EK) shares advanced 2 percent to $2.55 in post market trading session. The stock has a 52 week low of $2.25 and 52 week high of $5.95 and has $672.60 million market capitalization.

Red Hat, Inc. (NYSE:RHT) shares gained 1.78 percent to $44.60 in post market trading session.

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