The top after-market NYSE gainers Thursday were New York & Company, Quicksilver Resources, Petroleo Brasileiro, SuperValu and Radioshack Corp. The top after-market NYSE losers were Box Ships, Lexmark International, Stillwater Mining, Abercrombie & Fitch and MPG Office Trust.

Ganers:

New York & Company Inc. (NWY) shares surged 4.52 percent to $3.70 in the post market trading. The company announced Thursday that based on quarter-to-date performance and expectations for the balance of the quarter it expects to exceed second quarter fiscal 2012 guidance.

Quicksilver Resources Inc. (KWK) shares gained 1.93 percent to $5.27 in pre-market trading. The company stock plunged more than 5 percent in regular trading.

Petroleo Brasileiro SA (PBR) shares advanced 1.87 percent to $18.73 in the post market trading. The stock has a 52-week low of $17.27, a 52-week high of $35.10 and $122.16 billion in market capitalization.

SuperValu Inc. (SVU) shares advanced 1.86 percent to $2.74 in post market trading. The company stock slumped more than 49 percent after announcing the suspension of the quarterly dividend and said the Board will continue to review its dividend policy annually.
Radioshack Corp. (RSH) shares advanced 1.58 percent to $1.58 in the post market trading. The company stock plunged nearly 3 percent in regular trading.

Losers:

Box Ships Inc. (TEU) shares slumped 12.45 percent to $7.10 in the post market trading. The company announced Thursday that it intends to offer and sell $30,000,000 of its common shares in an underwritten public offering.

Lexmark International Inc. (LXK) shares slumped 9.50 percent to $22.00 in the post market trading after lowering its second quarter earnings guidance. The company currently expects second quarter adjusted earnings to be in a range of $0.87 to $0.89 per share, down from the prior estimation of $0.95 to $1.05 per share, and it also fell short of analysts’ estimation of a $1 per share.

Stillwater Mining Co. (SWC) shares fell 2.84 percent to $8.29 in the post market trading.

Abercrombie & Fitch Co. (ANF) shares declined 2.74 percent to $32.62 in the post market trading. The stock has a 52-week low of $29.51, a 52-week high of $78.25 and $2.77 billion in market capitalization.

MPG Office Trust Inc. (MPG) shares fell 2.51 percent to $2.14 in the post market trading. The company stock surged more than 5 percent in regular trading.

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