The top after-market NYSE gainers on Tuesday are: CVR Energy, Hudbay Minerals, Endeavour Silver, Exterran Holdings and CryoLife. The top after-market NYSE losers are: China Ming Yang Wind Power, Louisiana-Pacific, Kilroy Realty Corp, PulteGroup and Teradyne.

Gainers

CVR Energy Inc. (NYSE:CVI) shares advanced 3.53 percent to $24.62 in after –market trading session on Tuesday. The company announced that its Coffeyville Resources Refining & Marketing subsidiary entered into a Crude Oil Supply Agreement with Vitol Inc.

Hudbay Minerals Inc. (NYSE:HBM) shares advanced 2.79 percent to $17.62 in post market trading session.

Endeavour Silver Corp. (NYSE:EXK) shares advanced 2.33 percent to $11.42 in post-market trading session. The company stock surged 9.63 percent to a new 52-week high of $11.17 in regular trading session.

Exterran Holdings, Inc. (NYSE:EXH) shares advanced 1.89 percent to $23.66 in post market trading session. The stock has a 52 week low of $20.00 and 52 week high of $30.28 and has $1.48bmillion market capitalization.

CryoLife, Inc. (NYSE:CRY) shares gained 1.89 percent to $5.93 in aftermarket trading session. The company announced that through its wholly-owned subsidiary CL Falcon, Inc., has commenced a cash tender offer for all outstanding shares of Cardiogenesis Corporation common stock.

Losers

China Ming Yang Wind Power Group Ltd. (NYSE:MY) shares plunged 4.67 percent to $10.00 in post market trading session.

Louisiana-Pacific Corp. (NYSE:LPX) shares declined 4.06 percent to $9.92 in post market trading session. The stock has a 52 week low of $6.25 and 52 week high of $13.44 and has $1.37 billion market capitalization.

Kilroy Realty Corp. (NYSE:KRC) shares declined 3.45 percent to $38.10 in aftermarket trading session after the company said it has launched a public offering of 4.5 million shares of common stock.

PulteGroup, Inc. (NYSE:PHM) shares declined 3.44 percent to $7.17 in aftermarket trading session.

Teradyne, Inc. (NYSE:TER) shares declined 3.26 percent to $17.80 in post market trading session.

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