The top after-market NYSE gainers on Tuesday are: First Marblehead, Hershey Foods, MEMC Electronic, Timberland, Elan Corp, United Microelectronics, Bank of Ireland, NRG Energy and RSC Holdings.

First Marblehead Corp. (NYSE:FMD) shares gained 3.98 percent to $2.35 in aftermarket trading session. The company reported second quarter net loss of $1.5 million or $0.01 per share compared to a net loss of $12.1 million or $0.12 per share in the same quarter last year.

Hershey Foods Corp. (NYSE:HSY) shares gained 3.42 percent to $48.75 in post market trading session. The company is expected to report fourth quarter net income of $0.61 per share before markets open on February 2.

MEMC Electronic Materials, Inc. (NYSE:WFR) shares gained 3.35 percent to $12.02 in aftermarket trading session. The company expected 2011 earnings of $1.00 to $1.30 per share on revenue of $2.80 billion to $3.10 billion against analysts’ estimation of $1 per share on revenue of $2.65 billion.

Timberland Co. (NYSE:TBL) shares gained 2.89 percent to $28.50 in aftermarket trading session. The stock has a 52 week low of $15.07 and 52 week high of $24.87 and has $1.41 billion market capitalization.

Elan Corp. plc (NYSE:ELN) shares advanced 2.83 percent to $6.91 in post market trading session. The stock has a 52 week low of $4.25 and 52 week high of $8.24 and has 585.21 million outstanding shares.

United Microelectronics Corp. (NYSE:UMC) shares advanced 2.17 percent to $3.30 in post market trading session.

Bank of Ireland (NYSE:IRE) shares gained 1.77 percent to $2.30 in aftermarket trading session.

NRG Energy, Inc. (NYSE:NRG) shares gained 1.48 percent to $21.20 in post market trading session. The company plans to present its fourth quarter and full-year 2010 financial results to the financial community on Feb 22.

RSC Holdings Inc. (NYSE:RRR) shares gained 1.44 percent to $12.66 in aftermarket trading session.

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