Below are stocks making notable moves in pre-open trading Wednesday: HIGHER: Mela Sciences (Nasdaq: MELA) 50% HIGHER; skin cancer diagnostic device has gained EU approval.
Walter Energy, Inc. (NYSE: WLT) 20% HIGHER; takeover speculation NVIDIA (Nasdaq: NVDA) 7% HIGHER; strong FY13 sales guidance Yahoo!
Inc. (Nasdaq: YHOO) 6% HIGHER; takeover speculation after CEO Bartz fired Forest Oil Corporation (NYSE: FST) 4% HIGHER; declares special dividend of Lone Pine Resources Inc.
(NYSE: LPR) stock VeriFone Systems (NYSE: PAY) 3% HIGHER; tops Q3 views Las Vegas Sands Corp.