NEW YORK (Reuters) - Stocks rose more than 1 percent on Monday, with the S&P 500 snapping a six-day losing streak in a rebound from equities' biggest weekly drop in almost six months, but Facebook slumped in its second session after a disappointing debut. Tech shares were among the day's biggest gainers, with an S&P sector index surging 2.8 percent on the strength of Apple Inc . Shares of Apple climbed 5.8 percent to $561.28, leading the Nasdaq to its biggest one-day percentage gain since December 2011. ...

Apple chief executive Tim Cook topped the list of the best-paid CEOs in the US in 2011 thanks to stock options that put him more than $300 million above his next rival, a Wall Street Journal survey showed Monday.

The lawyer for a former board member for Goldman Sachs and Procter & Gamble says his client did not cheat anyone when he talked to a friend who ran a hedge fund.

NEW YORK (Reuters) - China can now bypass Wall Street when buying U.S. government debt and go straight to the U.S. Treasury, in what is the Treasury's first-ever direct relationship with a foreign government, according to documents viewed by Reuters. The relationship means the People's Bank of China buys U.S. debt using a different method than any other central bank in the world. The other central banks, including the Bank of Japan, which has a large appetite for Treasuries, place orders for U.S. debt with major Wall Street banks designated by the government as primary dealers. ...

After three weeks of dumping stocks, investors finally found something to be hopeful about.

The trial of the biggest suspect in a big US crackdown on Wall Street insider trading, former Goldman Sachs director Rajat Gupta, started Monday in New York.

After a weekend that brought both fresh concerns about Europe and hopeful signs about China, investors decided to focus on the latter.

(Reuters) - Lowe's Cos Inc , the world's No. 2 home improvement chain, cut its fiscal-year earnings outlook and said demand slowed toward the end of the traditionally strong first quarter, sending its shares down nearly 10 percent. The lackluster forecast came just days after larger rival Home Depot Inc missed Wall Street's quarterly sales estimates as demand weakened in April following a jump in home improvement projects earlier in the year because of a warm winter. ...

NEW YORK (Reuters) - Nasdaq OMX Group Inc said it is changing its initial public offering trading procedures following glitches in Facebook Inc's market debut that left some traders unsure if their orders for shares had been completed. The exchange operator said in a statement on Monday that modifications to its IPO procedures would prevent a repetition of the Friday problems with Facebook. Nasdaq Chief Executive Robert Greifeld said in a conference call with reporters on Sunday that there had been a malfunction in the trading system's design for processing order cancellations. ...

REUTERS - Facebook shares sank on Monday in the first day of trading without the full support of the company's underwriters, leaving some investors down 25 percent from where they were Friday afternoon. Facebook's debut was beset by problems, so much so that Nasdaq said on Monday it was changing its IPO procedures. That may comfort companies considering a listing but does little for Facebook, whose lead underwriter Morgan Stanley had to step in and defend the $38 offering price on the open market. Without that same level of defense, its shares fell $4.50 to $33. ...

Stocks rose Monday morning as investors latched onto a survey suggesting that economists are more optimistic about housing and unemployment.

NEW YORK (Reuters) - Wall Street edged higher at the open on Monday, rebounding from its worst weekly decline for the year, on assurances that world powers want debt-laden Greece to remain in the euro zone. The Dow Jones industrial average gained 29.71 points, or 0.24 percent, to 12,399.09. The Standard & Poor's 500 Index added 2.73 points, or 0.21 percent, to 1,297.95. The Nasdaq Composite Index climbed 4.26 points, or 0.15 percent, to 2,783.05. (Reporting By Chuck Mikolajczak, editing by Dave Zimmerman)

LONDON (Reuters) - World shares edged higher and commodities gained on Monday as investors' fears that Greece could leave the euro were partly soothed by promises from China and the Group of Eight leaders at the weekend to support growth. U.S. stock index futures also pointed to a higher open on Wall Street. But the gains follow a torrid week, which saw many riskier assets touch their lows for the year, and sentiment is weak with no concrete new plans in place to deal with the problems in Greece or Spain. ...

NEW YORK (Reuters) - Nasdaq OMX Group Inc said on Monday it is changing its initial public offering trading procedures following glitches in Facebook Inc's market debut at the end of last week that prevented some traders from knowing for hours whether their orders for shares had been completed. The exchange operator said in a note to traders that modifications to its IPO and halt cross application would prevent the problems that occurred on Friday from recurring. (Reporting By John McCrank; Editing by Gerald E. McCormick)

NEW YORK (Reuters) - Nasdaq OMX Group Inc said on Monday it is changing its initial public offering trading procedures following glitches in Facebook Inc's market debut at the end of last week that prevented some traders from knowing for hours whether their orders for shares had been completed.