The top after-market NYSE losers on Thursday are: Phoenix Companies, Sunrise Senior Living, SAIC, Credicorp, LyondellBasell Industries, Hovnanian Enterprises, Arch Coal, Teekay Corp, Frontline Ltd and NRG Energy.

Phoenix Companies, Inc. (NYSE:PNX) shares plunged 4.5 percent to $2.33 in aftermarket trading session.

Sunrise Senior Living, Inc. (NYSE:SRZ) shares declined 3.06 percent to $8.88 in post market trading session. The stock has a 52 week low of $2.18 and 52 week high of $12.44 and has $525.73 million market capitalization.

SAIC Inc (NYSE:SAI) shares declined 2.67 percent to $16.75 in post market trading session as its first quarter revenue fell short of expectations. Its first quarter net income rose to $131 million or $0.36 per share from $125 million or $0.32 per share in the same quarter last year. Revenue rose 2 percent to $2.69 billion compared to $2.63 billion in the same quarter last and against analysts’ estimation of $2.71 billion.

Credicorp Ltd. (NYSE:BAP) shares declined 2.18 percent in post market trading session after surging 6.43 percent in regular trading session.

LyondellBasell Industries NV (NYSE:LYB) shares declined 1.63 percent to $41.02 in post market trading session. The company announced its intention to seek a buyer for the 105,000 barrels-per-day refinery at Berre, France operated by its subsidiary, Compagnie Petrochimique de Berre S.A.S (CPB). The refinery, acquired in 2008 by LyondellBasell's former management, has not fulfilled economic projections made at the time of the acquisition.

Hovnanian Enterprises Inc. (NYSE:HOV) shares declined 1.59 percent to $2.48 in post market trading session.

Arch Coal, Inc. (NYSE:ACI) shares declined 1.54 percent to $32.61 in post market trading session.

Teekay Corp. (NYSE:TK) shares declined 1.54 percent to $32.61 in aftermarket trading session. The stock has a 52 week low of $23.60 and 52 week high of $12.44 and has $2.4 billion market capitalization.

Frontline Ltd. (NYSE:FRO) shares declined 1.4 percent to $17.59 in post market trading session.

NRG Energy, Inc. (NYSE:NRG) shares declined 1.37 percent to $23.70 in post market trading session.

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