Shares of Opera Software surged amid market talk that Facebook is in discussions to acquire the firmfor its advanced mobile phone software technology.
Chesapeake Energy jumped after activist investor Carl Icahn disclosed a 7.6 percent stakein the natural gas producer and called on the company to replace at least four directors.
JPMorgan Chase has sold an estimated $25 billionof profitable securities in an effort to prop up earnings after suffering losses connected to the bank's now-infamous "London Whale" trader, compounding the cost of those trades.
Samsung Electronics launches its Galaxy S smartphone in Europe, with the third generation model expected to be even more successful than its predecessor. The phone has helped the South Korean company topple Apple as the world's top smartphone maker.
Vertex Pharmaceuticals plunged almost 20 percent after the company released a corrected report of its cystic-fibrosis treatment. Initial results had exceeded expectations earlier this month.
On the economic front, home prices ended the first quarter at new post-crisis lows, according to the report, according to the S&P/Case Shiller composite index of 20 metropolitan areas. And consumer confidence declined to its lowest level in four months, according to the Conference Board.
"The disappointing consumer confidence number is a direct result of higher gas and food prices, which has decimated the household balance sheet," said Todd Schoenberger, managing principal at The BlackBay Group. "Factor in a miserable labor picture, and confidence continues to erode."
—By CNBC’s JeeYeon Park (Follow JeeYeon on Twitter:
Coming Up This Week:
WEDNESDAY: Mortgage apps, pending home sales; Earnings from TiVo
THURSDAY: Challenger job-cut report, ADP employment report, GDP, jobless claims, Fed's Pianalto speaks, corporate profits, Chicago PMI, oil inventories, chain-store sales, Zipcar shareholders mtg; Earnings from Joy Global
FRIDAY: Non-farm payrolls, personal income & outlays, ISM mfg index, construction spending, auto sales, Wal-Mart shareholders mtg
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