The top after-market NYSE gainers on Wednesday are: Qihoo 360 Technology, CONSOL Energy, Eastman Kodak, CACI International and Brookdale Senior Living. The top after-market NYSE losers are: International Rectifier, MGM Resorts International, Invesco Mortgage Capital, EMC Corp and Guess?, Inc.

Gainers:

Qihoo 360 Technology Co. Ltd. (NYSE:QIHU) shares climbed 9.59 percent to $25.48 in post market trading session. Its second quarter net income rose to $11.1 million from $2.2 million in the same quarter last year. Revenues surged 176.6 percent to $35.1 million compared to $12.7 million in the second quarter of 2010.

CONSOL Energy Inc. (NYSE:CNX) shares surged 8.91 percent to $46.20 in aftermarket trading session. The company is expected to make a significant gas announcement Thursday morning at 7:00 a.m. ET.

Eastman Kodak Co. (NYSE:EK) shares surged 7.43 percent to $2.89 in post market trading session. The company has begun selling its patents as smartphone and tablet makers vie for cutting-edge technologies.

CACI International, Inc. (NYSE:CACI) shares surged 6.72 percent to $52.10 in aftermarket trading session. The company reported fourth quarter net income of $45.90 million or $1.44 per share compared to $29.90 million or $0.96 per share in the same quarter last year and against analysts’ estimation of $1.17 per share.

Brookdale Senior Living Inc. (NYSE:BKD) shares gained 5.2 percent to $15.77 in post market trading session. The company stock declined more than 4.95 percent in regular trading session after Stifel Nicolaus downgraded shares of BKD to “hold” from “buy” rating.

Losers:

International Rectifier Corp. (NYSE:IRF) shares plunged 6.3 percent to $21.40 in post market trading session. The company reported fourth quarter net profit of $39.6 million or $0.55 per share compared to $29.0 million or $0.41 per share in the same quarter a year-ago.

For the first quarter, the company expects revenue to be in a range of $290.0 million to $310.0 million against analysts’ estimation of $321.37 million.

MGM Resorts International (NYSE:MGM) shares declined 5.11 percent to $10.95 in post market trading session. The stock has a 52 week low of $8.92 and 52 week high of $16.94 and has $5.64 billion market capitalization.

Invesco Mortgage Capital Inc. (NYSE:IVR) shares declined 4.72 percent to $18.38 in post market trading session. The company announced that it plans to make a public offering of 20 million shares of its common stock.

EMC Corp. (NYSE:EMC) shares declined 4.71 percent to $21.45 in post market trading session.

Guess?, Inc. (NYSE:GES) shares declined 4.14 percent to $31.96 in post market trading session. The stock has a 52 week low of $30.44 and 52 week high of $51.53 and has $3.09 billion market capitalization.