The top aftermarket NYSE gainers Friday were: Tenneco, Heckmann, Motorola, GNC Holdings and Gol Linhas Aereas Inteligentes. The top aftermarket NYSE losers were: Michael Kors Holdings, First Tennessee National, Penske Automotive Group, AvalonBay Communities and Jabil Circuit.

Gainers

Tenneco, Inc. (TEN) shares advanced 2.38 percent to $39.50 in post market session after gaining more than 3 percent in regular trading. The company announced that it has commenced a cash tender offer for any and all of the company's $250 million of outstanding 8 1/8 percent Senior Notes due 2015 and a solicitation of consents to certain proposed amendments to the indenture governing the notes.

Heckmann Corp. (HEK) shares gained 2.09 percent to $4.88 in aftermarket trading session. The company stock slumped more than 9 percent in regular trading after reporting fourth quarter net loss of $2.5 million compared to net profit of $279,000 in the same period last year.

Motorola, Inc. (MSI) shares gained 2.01 percent to $51.76 in post market trading session. The stock has a 52-week low of $38.36, a 52-week high of $52.78 and $16.13 billion in market capitalization.

GNC Holdings, Inc. (GNC) shares rose 1.98 percent to $32.17 in post market trading session. The stock has a 52-week low of $16.08, a 52-week high of $33.70 and $3.34 billion in market capitalization.

Gol Linhas Aereas Inteligentes S.A. (GOL) shares advanced 1.8 percent to $8.26 in aftermarket trading session. The company stock plunged nearly 4 percent in regular trading session.

Losers

Michael Kors Holdings Ltd. (KORS) shares plunged 4.72 percent to $47.25 in aftermarket trading. The company announced that it has filed a registration statement on Form F-1 with the Securities and Exchange Commission relating to the proposed public offering of 25,000,000 ordinary shares by certain selling shareholders.

First Tennessee National Corp. (FHN) shares plunged 4.26 percent to $9.66 in post market trading session. The stock has a 52-week low of $5.38, a 52-week high of $11.70 and $2.59 billion in market capitalization.

Penske Automotive Group, Inc. (PAG) shares declined 3.94 percent to $23.38 in post market session.

AvalonBay Communities, Inc. (AVB) share fell 2.76 percent to $134.00 in post market trading session. The company stock gained nearly 3 percent in regular trading after it was upgraded to top pick from outperform rating at RBC Capital.

Jabil Circuit, Inc. (JBL) shares declined 2.33 percent to $25.55 in post market trading session. The stock has a 52-week low of $13.94, a 52-week high of $26.50 and $5.48 billion in market capitalization.

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