The top after-market NYSE gainers Wednesday were Emulex Corp, New York Times, Tempur-pedic International, International Business Machines and Titan International. The top after-market NYSE losers were Greenhill & Co, Convergys, Whiting USA, Stryker Corp and Diana Shipping.

Gainers

Emulex Corp. (ELX) shares surged 3.26 percent to $6.65 in post-market trading.

New York Times Co. (NYT) shares gained 3.04 percent to $7.80 in post-market trading. The stock has a 52-week low of $5.50, a 52-week high of $9.73 and $1.12 billion in market capitalization.

Tempur-Pedic International Inc. (TPX) shares rose 3.02 percent to $26.30 in post-market trading. Glancy Binkow & Goldberg LLP announced that all purchasers of the common stock of TPX between January 25, 2012 and June 5, 2012 have until August 20, 2012 to file a motion with the court to be appointed as the lead plaintiff.

The securities fraud class action lawsuit was filed in the United States District Court for the Eastern District of Kentucky and the complaint alleges that throughout the Class Period, the defendants issued materially false and misleading statements concerning the company's business and operations.

International Business Machines Corp. (IBM) shares advanced 2.82 percent to $193.55 in post-market trading. The company reported second quarter net profit of $3.34 per share or $3.88 billion, up from $3.00 per share or $3.66 billion in the same quarter last year and also beats analysts' estimate of $3.42 per share.

Titan International, Inc. (TWI) shares rose 1.94 percent to $21.50 in post-market trading. The company stock plunged more than 5 percent in regular trading after it was downgraded to hold rating from a buy rating at Jefferies.

Losers

Greenhill & Co, Inc. (GHL) shares slumped 10.06 percent to $33.90 in post-market trading. The company reported the second quarter net profit of $2.2 million or $0.07 per share, sharply lower from $21.5 million or $0.69 per share in the same period last year and also fell short of analysts' estimate of $0.25 per share.

Convergys Corp. (CVG) shares plunged 4.40 percent to $14.34 in post-market trading. The company announced Wednesday that it would release its second quarter financial results and file SEC form 10-Q after market close Tuesday, July 31.

Whiting USA Trust I (WHX) shares declined 2.89 percent to $10.40 in post-market trading. The company stock slumped more than 34 percent in regular trading.

Stryker Corp. (SYK) shares fell 2.46 percent to $52.25 in post-market trading. The company reproved the second quarter net profit of $375 million or $0.98 per share, up from $325 million or $0.85 per share in the same quarter a year-ago.

Diana Shipping Inc. (DSX) shares declined 2.32 percent to $6.75 in post-market trading.

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