The top pre-market NASDAQ Stock Market gainers are: MediaMind Technologies, WPCS International, Melco Crown Entertainment, ARIAD Pharmaceuticals and Yahoo. The top pre-market NASDAQ Stock Market losers are: Finisar Corp, JDS Uniphase, Magic Software Enterprises, Ryanair Holdings and CIENA Corp.

Gainers:

MediaMind Technologies Inc. (NASDAQ:MDMD) shares climbed 37.64 in pre-market trading session. DG FastChannel Inc. announced a definitive agreement with MDMD under which DG will acquire MediaMind for around $418 million in an all-cash deal.

WPCS International Inc. (NASDAQ:WPCS) shares climbed 32.74 in pre-market trading session. Multiband Corporation announced that it has signed a non-binding letter of intent to acquire WPCS.

Melco Crown Entertainment Ltd. (NASDAQ:MPEL) shares gained 4.48 percent to $11.45 in pre-market trading session. The company signed a $360 million deal to acquire a 60 percent equity interest and shareholder loan in the developer of Macau Studio City.

ARIAD Pharmaceuticals, Inc. (NASDAQ:ARIA) shares gained 2.78 percent to $9.99 in pre-market trading session.

Yahoo! Inc. (NASDAQ:YHOO) shares advanced 1.22 percent to $14.99 in pre-market trading session.

Losers:

Finisar Corp. (NASDAQ:FNSR) shares slumped 17.03 percent to $14.71 in pre-market trading session as the company cut its first quarter earnings outlook. Finisar now expects first quarter earnings to be in the range of $0.16 to $0.20 per share on revenue of $221 million to $236 million compared to its earlier estimation of $0.17 to $0.21 per share on revenue of $215 million to $230 million, while analysts’ expect earnings of $0.37 per share on revenue of $253.21 million.

JDS Uniphase Corp. (NASDAQ:JDSU) shares plunged 4.84 percent to $15.73 in pre-market trading session after its rival Finisar Corp cut its first quarter earnings outlook.

Magic Software Enterprises Ltd. (NASDAQ:MGIC) shares declined 2.18 percent to $4.48 in pre-market trading session.

Ryanair Holdings plc (NASDAQ:RYAAY) shares declined 2.57 percent to $28.80 in pre-market trading session.

CIENA Corp. (NASDAQ:CIEN) shares declined 2.26 percent to $17.70 in pre-market trading session after its rival Finisar Corp cut its first quarter earnings outlook.