The top aftermarket NYSE gainers Monday were: Michael Kors Holdings Ltd, Enersys, SunTrust Banks, Lions Gate Entertainment Corp, SunCoke Energy and Headwaters. The top aftermarket NYSE Losers were: Regency Energy Partners, Excel Maritime Carriers, Roundy's, Williams-Sonoma, Beazer Homes USA and Mueller Water Products.

Gainers:

Michael Kors Holdings Ltd. (KORS) shares climbed 4.59 percent to $47.40 in post market trading after raising its fourth quarter and fiscal 2012 earnings estimates. The company currently expects fourth quarter earnings to be in a range of $0.14 to $0.16 per share compared to its prior estimation of $0.10 to $0.12 per share.

For fiscal 2012, Michael Kors expects earnings to be in a range of $0.79 to $0.81 per share on revenues of $ 1.27 to $1.28 billion compared to its earlier estimation of $0.74 to $0.76 per share, while analysts’ expect the company to report earnings per share of $0.67 on revenues of $1.28 billion.

Enersys (ENS) shares gained 2.82 percent to $36.86 in aftermarket trading session. The stock has a 52-week low of $17.35, a 52-week high of $40.32 and $1.71 billion in market capitalization.

SunTrust Banks, Inc. (STI) shares advanced 2.4 percent to $25.13 in aftermarket trading session. STI Wednesday announced key appointments within its Geographic and Consumer Banking organizations.

Lions Gate Entertainment Corp. (LGF) shares rose 2.25 percent to $14.57 in post market after surging nearly 8 percent in regular session.

SunCoke Energy, Inc. (SXC) shares gained 2.08 percent to $14.85 in post market trading. The company stock was upgraded to “buy” rating from “neutral” rating at Goldman Sachs.

Headwaters Inc. (HW) shares gained 1.92 percent to $4.16 in post market session.

Losers:

Regency Energy Partners LP (RGP) shares plunged 4.06 percent to $24.32 in aftermarket session. The company announced the commencement of an underwritten public offering of 11,000,000 common units representing limited partner interests in Regency.

Excel Maritime Carriers Ltd. (EXM) shares plunged 4.02 percent to $2.15 in aftermarket trading. The company stock climbed nearly 7 percent in regular session after it was upgraded to “hold” rating with a price target of $2 at Jefferies.

Roundy's, Inc. (RNDY) shares fell 1.98 percent to $11.01 in aftermarket trading session. The company stock gained more than 3 percent in regular session.

Williams-Sonoma, Inc. (WSM) shares declined 1.94 percent to $37.04 in post market trading session. The stock has a 52-week low of $27.90, a 52-week high of $45.48 and $3.89 billion in market capitalization.

Beazer Homes USA, Inc. (BZH) shares declined 1.9 percent to $3.61 in aftermarket trading session.

Mueller Water Products, Inc. (MWA) shares fell 1.78 percent to $3.41 in post market trading. The company stock surged nearly 4 percent in regular session.

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