The top after-market NYSE gainers on Tuesday are: SWS Group, CBS, PHH, Huntsman, Hovnanian Enterprises, Hovnanian Enterprises, Harris, Sanofi-Aventis, Manitowoc and Valeant Pharmaceuticals.

SWS Group, Inc. (NYSE:SWS) shares surged 5.1 percent to $6.60 in aftermarket trading session. The company announced that its board of directors has rejected the revised, unsolicited $7.50 per share cash takeover offer from Sterne Agee as the offer is highly conditional and opportunistic.

CBS Corp. (NYSE:CBS) shares gained 4.99 percent to $26.50 in post market trading session. The company swung to first quarter net profit of $202 million or $0.29 per share compared to net loss of $26 million or $0.04 per share in the same quarter last year.

PHH Corp. (NYSE:PHH) shares advanced 4.01 percent to $22.32 in pos market trading session. Its first quarter net profit surged to$49 million or $0.84 per share from $8 million or $0.15 per share in the same quarter last year.

Huntsman Corp. (NYSE:HUN) shares gained 2.45 percent to $20.50 in post market trading session.

Hovnanian Enterprises Inc. (NYSE:HOV) shares advanced 2.04 percent to $3.00 in pre-market trading session. The stock has a 52 week low of $2.92 and 52 week high of $8.05 and has $229.21 million market capitalization.

Harris Corp. (NYSE:HRS) shares advanced 1.93 percent to $53.99 in post market trading session. The company reported first quarter net income of $139.5 million or $1.09 per share compared to $166.2 million or $1.26 per share in the same quarter last year.

Sanofi-Aventis SA (NYSE:SNY) shares gained 1.75 percent to $40.75 in post market trading session. The stock has a 52 week low of $28.01 and 52 week high of $40.22 and has $105.06 billion market capitalization.

Manitowoc Co, Inc. (NYSE:MTW) shares advanced 1.69 percent to $21.08 in after market trading session. Boenning & Scattergood analysts raised their price target on shares of MTW to $30.00 from $24.00.

Valeant Pharmaceuticals International, Inc. (NYSE:VRX) shares gained 1.41 percent to $48.98 in aftermarket trading session. The company stock declined 2.58 percent in regular trading session.

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