* World stocks rally on toxic asset plan, US home sales
* U.S. dollar weakens as appetite for risk returns
* Treasuries flat stocks rally offsets buyback plan
By Walter Brandimarte and Al Yoon
NEW YORK, March 23 (Reuters) - World stocks rallied and the U.S. dollar weakened on Monday after Washington's plan to ease the global financial crisis with purchases of up to $1 trillion of troubled bank assets boosted investors' appetite for risk.
Commodity prices and emerging markets also posted strong gains as investors moved cash into higher-yielding assets, hoping the plan unveiled by U.S. Treasury Secretary Timothy Geithner will normalize the financial system and allow the global economy to recover.
The Treasury's plan includes a raft of incentives for private investors to help rid banks of toxic assets that have plunged the world economy into recession. For story, see [
]."The market is glad, they like what they hear," said Kevin Kruszenski, head of listed trading at KeyBanc Capital Markets in Cleveland. "This is a big first test (for Geithner) to have to take. The market being up is a vote of confidence for him."
The Dow Jones Industrials Average <
> jumped 497.48 points, or 6.84 percent, to 7,775.86, its largest single-day gain since late October. The Standard & Poor's 500 Index <.SPX> shot up 54.38 points, or 7.08 percent, to 822.92, while the Nasdaq Composite Index < > closed up 98.50 points, or 6.76 percent, at 1,555.77.Appetite for risk was also underpinned by a report that showed sales of existing homes in the battered U.S. housing market rebounded in February. [
]The MSCI World index <.MIWD00000PUS>, a gauge of global stocks performance, soared 10.54 percent, rising for nine out of the last ten days. The MSCI stock index for emerging markets <.MSCIEF> rose 5.09 percent.
But a decline in prices of safe-haven U.S. Treasuries was contained by expectations of an upcoming Federal Reserve's plan to buy back government debt.
The benchmark 10-year U.S. Treasury note <US10YT=RR> fell 5/32 in price, with the yield at 2.652 percent. The 30-year U.S. Treasury bond <US30YT=RR> was down 23/32, with the yield at 3.6933 percent.
In the foreign exchange market, the U.S. dollar and the yen weakened as investors reduced positions in safe-haven assets, favoring high-yielding currencies such as the Australian and New Zealand dollars.
The U.S. dollar weakened against a basket of major trading-partner currencies, with the U.S. Dollar Index <.DXY> down 0.41 percent at 83.367 from a previous session close of 83.708.
The euro <EUR=> gained 0.43 percent against the U.S. dollar at $1.3638.
Against the yen, the single euro zone currency jumped on electronic trading platform EBS to 132.56 yen <EURJPY=EBS>, its highest since October 2008. It last traded at 132.31 yen.
"This is more about risk appetite with U.S. stocks up after the Geithner announcement," said Brian Kim, currency strategist at UBS in Stamford, Connecticut.
Bets that the global economy might be bottoming caused the price of U.S. crude oil <CLc1> to rise $1.76, or 3.38 percent, to $53.83 per barrel. The Reuters/Jefferies CRB Index <.CRB> of 19 commodity futures was up 3.46 points, or 1.53 percent, at 229.54.
Spot gold prices <XAU=> fell $12.85, or 1.35 percent, to $938.00, on investors' reduced appetite for safety.
Details of the U.S. toxic debt plan, which surfaced over the weekend, extended a nearly two-week global stock market rally fueled by hopes that the financial system is stabilizing after some of the largest U.S. banks, including Citigroup Inc. <C.N>, said results were solid for January and February.
But the balance of risks is skewed to the downside in terms of economic data and the first-quarter reporting season that kicks off in a few weeks, according to JPMorgan. (Additional reporting by Edward Krudy and Gertrude Chavez-Dreyfuss in New York; Editing by Diane Craft)