The top after-market NYSE gainers on Wednesday are: Titan International, Constellation Energy, LSI Corp, Hudbay Minerals, Allstate, Norfolk Souther, Tyco International, Occidental Petroleum, United Microelectronics and Precision Drilling.

Titan International, Inc. (NYSE:TWI) shares climbed 15.94 in post market trading session on Wednesday. The company reported first quarter net income of $18.7 million or $0.37 per share compared to $2.08 million or $0.06 per share in the same quarter last year. Sales rose 43 percent to $280.8 million compared to $196.4 million in the first quarter of 2010.

Constellation Energy Group, Inc. (NYSE:CEG) shares surged 8.6 percent to $37.25 in aftermarket trading session on rumors that Exelon Corp. (NYSE: EXC) could buy the company for $38.50 per share.

LSI Corp. (NYSE:LSI) shares surged 5.8 percent to $7.30 in post market trading session. The company reported first quarter net income of $82 million or $0.13 per share compared to $92 million or $0.14 per share in the same quarter last year. Analysts’ expected net income of $0.10 per share.

Hudbay Minerals Inc. (NYSE:HBM) shares advanced 4.94 percent to $17.07 in aftermarket trading session. The stock has a 52 week low of $9.42 and 52 week high of $18.98 and has $2.43 billion market capitalization.

Allstate Corp. (NYSE:ALL) shares advanced 3.79 percent to $33.15 in post market trading session. Its first quarter net income surged to $519 million or $0.97 per share compared to $120 million or $0.22 per share in the same quarter last year.

Norfolk Souther Corp. (NYSE:NSC) shares gained 3.06 percent to $70.50 in post market trading session. The company reported first quarter net income of $325 million or $0.90 per share compared to $257 million or $0.68 per share in the same quarter last year.

Tyco International, Ltd. (NYSE:TYC) shares gained 2.11 percent to $49.90 in aftermarket trading session. The company is expected to report second quarter net income of $ 0.68 per share on revenue of $3.99 billion before the opening bell on Thursday.

Occidental Petroleum Corp. (NYSE:OXY) shares gained 1.84 percent to $104.90 in post market trading session.

United Microelectronics Corp. (NYSE:UMC) shares gained 1.78 percent to $2.86 in aftermarket trading session.

Precision Drilling Corp. (NYSE:PDS) shares advanced 1.53 percent to $15.19 in aftermarket trading session.

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