The top after-market NYSE gainers Wednesday were WESCO International, Ethan Allen Interiors Inc, Laredo Petroleum Holdings, Knight Capital Group and MGIC Investment Corp. The top after-market NYSE losers were Fortune Brands Home & Security, Meritor, Bridgepoint Education, Albemarle Corp and Halcon Resources Corp.

Gainers

WESCO International, Inc. (WCC) shares climbed 10.20 percent to $63.00 in post-market trading. The company announced Wednesday that it had entered into a definitive agreement through a wholly owned subsidiary to acquire EECOL Electric Corporation, headquartered in Calgary, Alberta, Canada, and various affiliated companies for a purchase price of approximately CAD $1.14 billion.

Ethan Allen Interiors Inc. (ETH) shares climbed 6.11 percent to $25.00 in post-market trading. The company reported the first quarter adjusted net income of $11.1 million or $0.38 per share, up from $7.2 million or $0.25 per share in the same period last year and topped Reuters’ estimate of $0.29 per share.

Laredo Petroleum Holdings, Inc. (LPI) shares gained 2.91 percent to $21.60 in post-market trading. The company announced the closing of the underwritten secondary public offering of 14,375,000 shares of its common stock by affiliates of Warburg Pincus LLC at a price to the public of $20.25 per share, including all 1,875,000 shares of common stock that were subject to the underwriters` option to purchase additional shares.

Knight Capital Group, Inc. (KCG) gained 2.65 percent to $2.71 in post-market trading. The company reported the third quarter adjusted net profit of $817,000 or $0.01 per share compared to Reuters’ estimate for a loss of $2.45 per share.

MGIC Investment Corp. (MTG) shares rose 2.38 percent to $2.15 in post-market trading. The company stock climbed more than 20 percent in regular trading.

Losers

Fortune Brands Home & Security, Inc. (FBHS) shares tumbled 15.01 percent to $24.41 in post-market trading. The stock has a 52-week low of $13.78, a 52-week high of $29.12 and $4.62 billion in market capitalization.

Meritor, Inc. (MTOR) shares plunged 4.83 percent to $4.24 in post-market trading. The company stock surged nearly 5 percent in regular trading.

Bridgepoint Education Inc. (BPI) shares plunged 4.52 percent to $9.51 in post-market trading. The stock has a 52-week low of $8.11, a 52-week high of $27.26 and $526.67 million in market capitalization.

Albemarle Corp. (ALB) shares fell 4.18 percent to $52.01 in post-market trading. The company reported third quarter net profit of $99.26 million or $1.10 per share, down from $116.10 million or $1.28 per share in the same period last year. Revenue fell 9 percent to $661.23 million, below analysts’ estimate of $670.18 million.

Halcon Resources Corp. (HK) shares fell 3.80 percent to $6.87 in post-market trading. The stock has a 52-week low of $2.10, a 52-week high of $13.35 and $1.51 billion in market capitalization.