* Euro ministers encourage stock markets
* Euro up vs dollar after prior session multi-yr lows
* U.S. bond prices rise as risk-aversion still up (Updates to U.S. markets, changes byline, dateline, previous LONDON)
By Manuela Badawy and Claire Milhench
NEW YORK/LONDON, May 18 (Reuters) - U.S. stocks opened higher on Tuesday as investors became more optimistic on the progress that euro-zone finance ministers were making on Greece's rescue package, while the euro recovered from the prior session's four-year low.
Global markets steadied as investors were encouraged by comments from European ministers that they will clarify this week some technical and legal details of the 750 billion euro ($925 billion) rescue plan [
].Prices of U.S. Treasury debt, seen as a safe haven investment, ticked higher as demand was still strong because worries about euro zone debt problems in the longer term showed few signs of easing.
Helping to calm investors' jitters, officials said Greece received a 14.5 billion euro emergency loan from the EU, and would use some of the money to fully repay a 8.5 billion euro bond maturing on Wednesday.
The 10-year Greek/German government bond yield spread tightened and the cost of insuring against a Greek default fell, helping to support the euro.
"The euro has been oversold so there is at least a bounce in the short term," said Carol Hurley, senior market strategist at Lind-Waldock in Chicago. "But longer term, the euro could go to parity (with the dollar), maybe even by the end of the year."
The euro <EUR=> rose 0.23 percent from the previous session's close to $1.2422. Against the Japanese yen, the dollar <JPY=> was up 0.19 percent at 92.76 from a previous session close of 92.580.
In the U.S. stock market, the Dow Jones industrial average <
> added 76.55 points, or 0.72 percent, to 10,702.38, also getting support from solid earnings results from Wal-Mart and Home Depot.The Standard & Poor's 500 Index <.SPX> gained 8.37 points, or 0.74 percent, to 1,145.31. The Nasdaq Composite Index <
> rose 20.12 points, or 0.85 percent, to 2,374.35.World stocks as measured by the MSCI All-Country index <.MIWD00000PUS> were up 1.18 percent while its emerging markets component <.MSCIEF> was up 0.9 percent.
The FTSEurofirst 300 <
> index of top European shares edged up 1.78 percent, with banks and commodity stocks such as energy and mining companies gaining."I would see these gains (in equities) as more of a pause than the start of an uptrend. The market has slowly but certainly realized that the problems that Europe has are quite severe," said Philippe Gijsels, head of research at BNP Paribas Fortis Global Markets in Brussels.
Earlier, Asian stocks had fallen to three-month lows as traders continued to fret about the impact that euro zone spending cuts would have on exporters in the region. In Japan, the Nikkei <
> closed little changed after a choppy session.(Additional reporting by Nick Olivari in New York and Harpreet Bhal in London, Editing by Chizu Nomiyama)