The top after market NYSE gainers on Tuesday were: Spartech, Cobalt International, Nelnet, CTS Corp, Ameriprise Financial, Briggs & Stratton, Lennar Corp, Sunoco Logistics Partners, Manitowoc and Methode Electronics.

Spartech Corp. (NYSE:SEH) shares climbed 11.26 percent to $4.25 in post market trading session. The company stock plunged more than 5 percent in regular trading session.

Cobalt International Energy, Inc. (NYSE:CIE) shares surged 7.13 percent to $10.60 in aftermarket trading session. The stock has a 52-week low of $6.30, a 52-week high of $17.22 and $3.88 billion in market capitalization.

Nelnet, Inc. (NYSE:NNI) shares gained 6.56 percent to $21.02 in post market trading session after plunging more than 6 percent in regular trading session.

CTS Corp. (NYSE:CTS) shares gained 6.33 percent to $10.25 in aftermarket trading session. The company reported third quarter net income of $0.17 compared to $0.20 per share in the same quarter last year.

Ameriprise Financial, Inc. (NYSE:AMP) shares advanced 5.98 percent to $44.56 in aftermarket trading session.

Briggs & Stratton Corp. (NYSE:BGG) shares gained 5.85 percent to $14.94 in post market trading session. The stock has a 52-week low of $12.36, a 52-week high of $24.18 and $714.31million in market capitalization.

Lennar Corp. (NYSE:LEN) shares gained 5.53 percent to $16.88 in aftermarket trading session. The stock has a 52-week low of $12.14, a 52-week high of $21.54 and $2.99 billion in market capitalization.

Sunoco Logistics Partners L.P. (NYSE:SXL) shares advanced 5.27 percent to $100 in post market trading session. The company declared a cash distribution for the third quarter 2011 of $1.24 per common unit to be paid on November 14, 2011 to unit holders of record on November 8, 2011.

Manitowoc Co, Inc. (NYSE:MTW) shares gained 5.2 percent to $9.10 in aftermarket trading session. Its third quarter net profit surged to $23.7 million or $0.18 per share from $1.4 million or $0.01 per share in the same quarter a year-ago.

Methode Electronics, Inc. (NYSE:MEI) shares gained 5.06 percent to $9.22 in post market trading session after plunging more than 6 percent in regular trading session.

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