* Gold reverses course, rises nearly 1 pct
* Equities, oil, euro slip on concerns over economic outlook
* Platinum underperforms palladium
(Updates throughout with comment, prices)
By Amanda Cooper
LONDON, Aug 24 (Reuters) - Gold rallied by nearly 1 percent on Tuesday, breaking a two-day losing streak after another round of negative U.S. data undermined the dollar and whet investor appetite for perceived safe-haven assets.
Gold prices earlier fell by more than 1 percent as the dollar rose against the euro and a raft of investor liquidation weighed on the broader commodities complex.
But a surprisingly weak reading of U.S. existing home sales, which fell to their lowest in 15 years, pummelled the stock markets and sent short-term U.S. Treasury yields to record lows. [
]Spot gold <XAU=> was at $1,232.20 an ounce at 1520 GMT, having recovered from an earlier low of $1,210.10, and was up from $1,223.40 late in New York on Monday. U.S. gold futures for December delivery <GCZ0> rose $6.8 an ounce to $1,235.60.
"The existing home sales were quite bearish, so you could potentially see a re-test of the June highs. We're also coming into a period when physical demand starts playing a bigger role," said VTB Capital analyst Andrey Kryuchenkov.
"The uptrend is pretty much intact and I think everyone believes in the bullish case for gold."
Following the home sales data and a drop of over 1 percent on Wall Street, the dollar reversed course against the euro <EUR=>, which in turn helped gold recover its losses.
Strength in the dollar typically weighs on gold, curbing its appeal as an alternative investment and making dollar-priced assets more expensive for non-U.S. investors. [
]
SHARES TUMBLE
European shares fell to one-month lows after the home sales data reinforced existing fears about the outlook for U.S. growth and crude oil futures <CLc1> slipped by over 1 percent. [
] [ ]On the bond markets, yields on the benchmark German 10-year Bund <DE10YT=TWEB> hit record lows, while the Federal Reserve bought $1.35 billion in Treasuries due from Feb. 2013 to July 2014 in an effort to keep lower long-term interest rates low to stimulate the economy. [
] [ ]Gold hit a 1-1/2 month high at $1,237.15 an ounce last week as concerns over the global economic recovery fuelled interest in the metal as a haven from risk, but has since retreated.
"Last week as we started to see euro zone risk rise, there was a pick-up in defensive buying out of Europe," said Credit Suisse analyst Tom Kendall. "But with everything else sliding lower, and the dollar coming back a bit, it is struggling."
"But I don't think it is going to struggle for too long with this risk-aversion environment," he added. "Money is going to continue flowing into longer-dated Treasuries and gold."
Meanwhile, the yen hit a 15-year high against the dollar and a nine-year peak versus the euro as investors tested the resolve of Japanese authorities to stem the yen's rise.
Gold priced in Japanese yen <XAUJPY=R> was down about 0.5 percent, having earlier fallen by as much as 2.6 percent 101,394 yen an ounce.
"This week we've seen some liquidation (of gold) come to the fore on Tocom, with some of the Japanese investors repatriating cash into yen," Kendall noted.
Silver <XAG=> shot up by more than 2 percent, bid at $18.42 an ounce, versus $17.93 on Monday.
The platinum group metals also recouped earlier losses, with platinum <XPT=> last at $1,515 an ounce versus $1,504.50 and palladium <XPD=> at $483 against $481.
Platinum and palladium are chiefly used in autocatalysts, and have been heavily exposed to the global economic slowdown. However, palladium has slightly outperformed platinum, as its potential for demand growth is expected to be stronger. (Additional reporting by Jan Harvey)
(Editing by Keiron Henderson)