* World stocks rally for ninth-straight session
* Euro holds near 3-week high versus U.S. dollar
* U.S. debt prices fall in light volume
* Gold hits record on safe-haven demand (Updates with opening of U.S. markets, adds byline, dateline)
By Herbert Lash and Jeremy Gaunt
NEW YORK/LONDON, June 18 (Reuters) - World stocks rose for a ninth straight day on Friday as investors increased their risk appetite after a Spanish bond auction eased their worst fears about euro zone sovereign debt, helping the euro hold at three-week highs.
MSCI's all-country world index <.MIWD00000PUS> gained about 0.5 percent, allowing U.S. and European shares to retrace all their losses for this year. The index has rebounded around 7 percent since its June 7 close and gained more than 3 percent this week.
Its emerging markets counterpart <.MSCIEF> outperformed and was up almost 0.7 percent.
The euro steadied around $1.24 as it headed toward its biggest weekly gain in more than a year as investors unwound large short positions accumulated during the currency's sell-off in recent months. [
]"We had some nice euro gains and dollar weakness over the course of this week. We're going to see whether the euro is going to sustain these gains and press on toward $1.25," said Brian Dolan, chief strategist at Forex.com in Bedminster, New Jersey.
The euro <EUR=> was up 0.04 percent at $1.2383.
The U.S. Dollar Index <.DXY> was down 0.08 percent at 85.621, and against the yen, the dollar <JPY=> was down 0.22 percent at 90.78.
U.S. stocks rose in early trading and were set for back-to-back weekly gains, as investors juggled with the expiration of stock options.
Basic materials companies took the lead in a market that traded in a very tight range. Eastman Chemical <EMN.N> gained 2.2 percent and the S&P materials index <.GSPM> edged up 0.6 percent.
The Dow Jones industrial average <
> edged up 40.66 points, or 0.39 percent, to 10,474.60. The Standard & Poor's 500 Index <.SPX> added 4.35 points, or 0.39 percent, to 1,120.08. The Nasdaq Composite Index < > rose 13.80 points, or 0.60 percent, to 2,320.88.Investors have gradually been moving back into riskier assets this month after a sharp correction in May made valuations more attractive and key volatility gauges, such as Wall St's Vix index, almost halved from mid-May peaks.
Spain's Treasury sold 3.5 billion euros of debt on Thursday, and a government official said the sale gave it enough liquidity to deal with a 24 billion euro ($29.4 billion) repayments crunch in July.
In addition, EU leaders and officials on Friday firmed up plans to publish bank "stress tests" next month as they looked to minimize adverse speculation that has been dogging the sector all year.
But investors in commodities overlooked increased risk appetite in the wider markets as oil and copper prices faltered on signs economic growth in the United States and China may not be as rapid as expected. [
]A Chinese official said growth was expected to slow in the second half of this year and that double-digit growth for the full year seemed unlikely. [
]The warning, which prompted a sell-off in Chinese equities, followed U.S. data on Thursday showing jobless claims increased unexpectedly last week as the manufacturing, construction and education sectors shed workers. [
]"The recovery is going to be quite slow in a number of countries," said Daniel Smith, an analyst at Standard Chartered.
U.S. light sweet crude oil <CLc1> was up 18 cents to $76.97 per barrel after earlier trading lower.
Gold rallied to a record high near $1,260 an ounce as momentum triggered by buying of the metal as a haven from sovereign and financial risk pushed prices through technical resistance to near their previous peak. [
]U.S. Treasury prices drifted lower in light trading as the market cleaved tightly to a yield range established over the past week and a half, with little on the agenda to influence prices. [
]"It is a classic summer Friday with no economic data and much of the market dreaming about an early close to make it a long weekend," said Ian Lyngen, senior government bond strategist at CRT Capital Group in Stamford, Connecticut.
The benchmark 10-year U.S. Treasury note <US10YT=RR> was down 8/32 in price to yield 3.2213 percent. (Reporting by Rodrigo Campos, Wanfeng Zhou in New York; Christopher Johnson in London; Writing by Herbert Lash; Editing by Dan Grebler)