The top after-market NYSE gainers Wednesday were Dillard's Inc, Juniper Networks, Chicago Bridge & Iron Co, Actavis and Yingli Green Energy Holding. The top after-market NYSE losers were NQ Mobile, DDR Corp, Youku Tudou, Meadwestvaco Corp., and Vornado Realty Trust.

Gainers

Dillard's Inc. (NYSE:DDS) shares surged 3.83 percent to $92.50 in post-market trading. Its first quarter net profit rose to $117.2 million or $2.50 per share from $95 million or $1.89 per share in the same period last year and topped analysts’ expectation of $2.09 per share for the quarter.

Juniper Networks Inc. (NYSE:JNPR) shares surged 3.51 percent to $17.67 in post-market trading. The company announced Wednesday that it will be hosting its 2013 Annual Meeting of Stockholders on Tuesday, May 21 at 9:00 a.m. PDT at its offices located in Sunnyvale, California.

Chicago Bridge & Iron Co N.V. (NYSE:CBI) shares gained 3.08 percent to $59.54 in post-market trading. The stock has a 52-week low of $32.48, a 52-week high of $62.73 and $6.18 billion in market capitalization.

Actavis Inc. (NYSE:ACT) shares advanced 2.51 percent to $126.99 in post-market trading. The stock has a 52-week low of $67.67, a 52-week high of $126.33 and $15.84 billion in market capitalization.

Yingli Green Energy Holding Co Ltd. (NYSE:YGE) shares rose 2.45 percent to $2.51 in post-market trading. The stock has a 52-week low of $1.25, a 52-week high of $3.63 and $373.95 million in market capitalization.

Losers

NQ Mobile Inc. (NYSE:NQ) shares slumped 6.56 percent to $8.97 in post-market trading. The company reported first quarter adjusted net profit of $0.19 per ADS, in line with analysts’ estimates. Quarterly revenues surged more than 100 percent to $33.2 million in comparison to last year.

DDR Corp. (NYSE:DDR) shares plunged 2.89 percent to $18.85 in post-market trading. The company on Wednesday announced the commencement of a public offering of approximately 32,000,000 common shares on a forward basis.

Youku Tudou Inc. (NYSE:YOKU) shares declined 2.83 percent to $20.58 in post-market trading. The company stock climbed nearly 5 percent in regular trading on Wednesday.

Meadwestvaco Corp. (NYSE:MWV) shares fell 2.29 percent to $35.41 in post-market trading. The stock has a 52-week low of $26.15, a 52-week high of $38.39 and $6.41 billion in market capitalization.

Vornado Realty Trust (NYSE:VNO) shares declined 2.23 percent to $86.18 in post-market trading. The stock has a 52-week low of $72.64, a 52-week high of $88.31 and $21.12 billion in market capitalization.

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