The top after-market NYSE gainers on Tuesday are: Willbros Group, SuccessFactors, Zale Corp, Orient-Express Hotels, Pilgrim's Pride Corp, Modine Manufacturing, Quanex Building Products, KBW, Harris Corp and United Rentals.

Willbros Group, Inc. (NYSE:WG) shares climbed 16.69 percent to $9.09 in post market trading session. The company stock plunged more than 14 percent in regular trading session after Duncan-Williams lowered WG’s 2011 revenue estimate to 1.76 billion from 1.81 billion.

SuccessFactors, Inc. (NYSE:SFSF) climbed 12.34 percent to $28.40 in post market trading session after reporting better-than-expected earnings and guidance. The company reported second quarter net profit of $0.03 per share, while analysts’ expected that the company to breakeven. Revenue rose 48 percent to $73.2 million against analysts’ estimation of $69.6 million.

Zale Corp. (NYSE:ZLC) shares surged 12.17 percent to $5.90 in aftermarket trading session. The company stock plunged more than 14 percent in regular trading session.

Orient-Express Hotels, Ltd. (NYSE:OEH) shares surged 11.56 percent to $9.75 in aftermarket trading session. The company swung to second quarter net profit of $5.2 million or $0.05 per share compared to net loss of $0.8 million or $0.01 per share in the same quarter last year.

Pilgrim's Pride Corp. (NYSE:PPC) shares surged 10.53 percent to $4.62 in post market trading session after plunging 9.52 percent in regular trading session.

Modine Manufacturing Co. (NYSE:MOD) shares gained 8.37 percent to $14.11 in post market trading session. The stock has a 52 week low of $9.25 and 52 week high of $17.94 and has $606.13 million market capitalization.

Quanex Building Products Corp. (NYSE:NX) shares advanced 8.16 percent to $15.77 in aftermarket trading session.

KBW Inc. (NYSE:KBW) shares gained 8.13 percent to $16.49 in post market trading session. The stock has a 52 week low of $15.25 and 52 week high of $29.21 and has $550.97 million market capitalization.

Harris Corp. (NYSE:HRS) shares surged 7.95 percent to $41.00 in post market trading session. The company reported fourth quarter net income of $134 million or $1.06 per share compared to $151 million or $1.16 per share in the same quarter last year.

United Rentals, Inc. (NYSE:URI) shares advanced 7.86 percent to $22.38 in post market trading session after declining 7.28 percent in regular trading session.

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