The top after-market NYSE gainers Thursday were Cooper Companies, Sturm, Ruger & Co, Cedar Realty Trust, Lloyds Banking Group and Barnes & Noble, Inc. The top after-market NYSE losers were Infoblox Inc, Pandora Media, Resource Capital Corp, ExactTarget and Calpine Corp.

Gainers

Cooper Companies, Inc. (COO) shares climbed 6.36 percent to $91.50 in post-market trading. Cooper reported the third quarter net income of $1.45 per share on revenues of $378.2 million, above analysts' estimate of $1.29 per share on revenues of $367.6 million. The company expects that the full-year adjusted net profit will be in a range of $5.19 to $5.24 per share, up from prior estimate of $4.90 to $5.15 per share and also topped analysts' expectation of $5.06 per share.

Sturm, Ruger & Co, Inc. (RGR) shares climbed 4.35 percent to $48.75 in post-market trading. The stock has a 52-week low of $23.86, a 52-week high of $58.42 and $895.16 million in market capitalization.

Cedar Realty Trust, Inc. (CDR) shares gained 3.64 percent to $5.98 in post-market trading. The company announced Thursday that it had reached an agreement with RioCan Real Estate Investment Trust to exit the 20 percent Cedar / 80 percent RioCan joint venture that owns 22 retail properties.

Lloyds Banking Group Plc (LYG) shares gained 1.75 percent to $2.32 in post-market trading after climbing more than 7 percent in regular trading.

Barnes & Noble, Inc. (BKS) shares advanced 1.66 percent to $12.27 in post-market trading. The stock has a 52-week low of $9.35, a 52-week high of $26.00 and $723.67 million in market capitalization.

Losers

Infoblox Inc. (BLOX) shares slumped 12.78 percent to $20.40 in post-market trading. The company reported the fourth quarter net loss of $4.3 million or $0.10 per share compared to loss of $2.1 million or $0.20 per share in the same period last year. Infoblox currently expects fiscal 2013 adjusted net profit to be in a range of $0.04 to $0.07 per share on revenues of $195 to $202 million while analysts expects a net profit of $0.11 per share on revenues of $194.79 million.

Pandora Media, Inc. (P) shares plunged 4.46 percent to $12.01 in post-market trading. The stock has a 52-week low of $7.83, a 52-week high of $15.98 and $2.12 billion in market capitalization.

Resource Capital Corp (RSO) shares plunged 3.28 percent to $5.90 in post-market trading. The company announced Thursday that it had commenced a public offering of 8,500,000 shares of its common stock.

ExactTarget, Inc. (ET) declined 3.20 percent to $21.15 in post-market trading after the company announced a public offering of 6,500,000 shares of its common stock.

Calpine Corp. (CPN) shares fell 3.08 percent to $17.96 in post-market trading. The stock has a 52-week low of $12.79, a 52-week high of $19.02 and $8.65 billion in market capitalization.

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