Traders work on the floor of the New York Stock Exchange
Traders work on the floor of the New York Stock Exchange, September 7, 2010. REUTERS

The top after-market NYSE gainers Monday were Ameresco Inc, Penn Virginia Corporation, AOL Inc and Targa Resources Inc.

Ameresco Inc (AMRC) shares climbed 4.77 percent to $9.43 in post-market trading. The stock has a 52-week low of $8.29, a 52-week high of $14.73 and $405.28 million in market capitalization.

Penn Virginia Corporation (PVA) shares gained 4.01 percent to $4.55 in post-market trading. The stock has a 52-week low of $3.92, a 52-week high of $7.74 and $201.23 million in market capitalization.

AOL Inc (AOL) shares rose 3.82 percent to $39.59 in post-market trading. The stock has a 52-week low of $13.49, a 52-week high of $43.93 and $3.19 billion in market capitalization.

Targa Resources Inc (TRGP) rose 3.65 percent to $47.82 in post-market trading. The stock has a 52-week low of $32.34, a 52-week high of $51.99 and $1.96 billion in market capitalization.

The top after-market NYSE losers Monday were OM Group Inc, Weatherford International Ltd, Thermon Group Holdings Inc, EverBank Financial Corp and MarkWest Energy Partners LP.

OM Group Inc (OMG) shares declined 6.20 percent to $18.58 in post-market trading. The stock has a 52-week low of $15.12, a 52-week high of $31.26 and $631.70 million in market capitalization.

Weatherford International Ltd (WFT) shares dropped 4.78 percent to $10.36 in post-market trading. The stock has a 52-week low of $10.59, a 52-week high of $18.33 and $8.26 billion in market capitalization.

Thermon Group Holdings Inc (THR) shares fell 4.47 percent to $23.21 in post-market trading. The stock has a 52-week low of $14.85, a 52-week high of $26.24 and $746.62 million in market capitalization.

EverBank Financial Corp (EVER) shares dropped 4.42 percent to $14.50 in post-market trading. The stock has a 52-week low of $9.40, a 52-week high of $16.22 and $1.83 billion in market capitalization.

MarkWest Energy Partners LP (MWE) shares fell 3.70 percent to $47.85 in post-market trading. The stock has a 52-week low of $45.36, a 52-week high of $61.60 and $4.77 billion in market capitalization.

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