The top after-market NYSE gainers on Wednesday are: AMB Property, Teradyne, ProLogis, Astoria Financial and DCT Industrial Trust. The top after-market NYSE losers on Wednesday are: Quantum Corp, Murphy Oil, Motorola, Robert Half International and LDK Solar.

Gainers

AMB Property Corp. (NYSE:AMB) shares surged 9.56 percent to $32.86 in aftermarket trading session. AMB Property Corp. (AMB) and Prologis (PLD) Thursday confirmed that the two companies are in discussions regarding a potential merger of equals.

Teradyne, Inc. (NYSE:TER) shares gained 9.36 percent to $16.00 in post market trading session. The company’s fourth quarter profit more than tripled from last year on back of strong margin expansion and revenue growth. Its first quarter earnings and revenue outlook also topped analysts’ estimates.

ProLogis (NYSE:PLD) shares gained 8.16 percent to $15.90 in aftermarket trading session. The company confirmed that its discussion with AMB Property Corp. (AMB) regarding a potential merger of equals.

Astoria Financial Corp. (NYSE:AF) shares gained 7.12 percent to $14.90 in post market trading session, following better-than-expected fourth quarter earnings. The company said Chief Operating Officer Monte Redman will replace Engelke effective July 1. Engelke will continue in his role of Chairman.

DCT Industrial Trust Inc. (NYSE:DCT) shares gained 5.82 percent to $6.00 in post market trading session. The stock has a 52 week low of $4.07 and 52 week high of $5.73 and has 216.83M outstanding shares.

Losers

Quantum Corp. (NYSE:QTM) shares plunged 24.79 in aftermarket trading session as its third quarter earnings and fourth quarter guidance fell short of analysts’ estimation. The company said it expects fourth quarter earnings of $0.04 to $0.05 per share against analysts’ estimation of $0.07 per share.

Murphy Oil Corp. (NYSE:MUR) shares declined 7.14 percent to $68.00 in aftermarket trading session as its first quarter earnings guidance fell short of analysts’ estimates. The company said it expects first quarter earnings of $0.55 to $0.95 per share against analysts’ estimation of $1.47 per share.

Motorola, Inc. (NYSE:MSI) shares declined 6.83 percent to $34.83 in aftermarket trading session. The company is expected to report fourth quarter net income of $1.06 per share before markets open on January 27th.

Robert Half International Inc. (NYSE:RHI) shares declined 5.02 percent to $32.00 in aftermarket trading session despite reporting fourth quarter net income of $0.17 per share compared to $0.09 per share in the same quarter last year.

LDK Solar Co. Ltd. (NYSE:LDK) shares declined 3.53 percent to $12.56 in aftermarket trading session. The company announced that it filed a shelf registration statement on Form F-3 with the Securities and Exchange Commission, providing for the offering on a delayed or continued basis of equity, debt and other securities.