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* Positive earnings results boost sentiment
* Palladium <XPD=> at 2-year, platinum at 20-month high
* Coming up: talks on EU/IMF aid package for Greece
By Humeyra Pamuk
LONDON, April 21 (Reuters) - Platinum group metals (PGM) rallied to their highest in about two years on Wednesday on the back of a strong demand outlook from investors and the auto industry, while gold edged higher as risk-appetite improved.
Upbeat results from U.S. companies such as IBM <IBM.N> and Apple <AAPL.O> lifted sentiment in global markets, which had turned sour earlier this week after fraud charges against Goldman Sachs <GS.N>, a major commodities trader.
"The underlying fundamentals of platinum and palladium are significantly better than gold in our view," said analyst Daniel Major at RBS. "You've got the supply side constrained....and much more positive outlook for demand," he said. Spot platinum <XPT=> rose to $1,737.50 an ounce, its highest since August 2008 and was at $1,732.50 an ounce by 1017 GMT, versus $1,714 an ounce late in New York on Tuesday. Sister metal palladium <XPD=> hit a two-year high at $563 an ounce, and was last at $560.50 an ounce versus $549 an ounce on Tuesday.
Palladium and platinum, both used to clean auto emissions and in jewellery, have been in favour as they are considered to be more sensitive than gold to economic recovery. They have risen by 39 and 18.5 percent respectively so far this year, compared with gold's 4.4 percent.
For a story on gold and platinum ratios, click on [
]Chinese car sales have been strong so far this year, growing by almost two-thirds last month as buoyant consumer sentiment lifted spending, while other leading car markets, notably the United States, are also recovering from last year's slump.
The launch of new investment products, such as the exchange traded funds (ETF) in the United States, in January, has also been a major driver behind the price for PGMs. [
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FURTHER LONGS IN GOLD?
Spot gold <XAU=> edged up to $1,144.65 an ounce from $1,139.50. It hit a two-week low of $1,123.15 on Monday.
U.S. gold futures for June delivery <GCM0> advanced to $1,144.9 an ounce, after settling at $1,139.20 on the COMEX division of the New York Mercantile Exchange.
Traders said bullion was firm as the dollar was slightly lower <.DXY>, but investors were watching the news on Greece, as the European Union and IMF are set to begin talks for a proposed bailout package. [
] [ ]ETFS Physical Gold (PHAU) said it saw the largest inflows in eight months, with inflows surging $160 million last week and in period when the gold price was falling.
"Long-term strategic investors may be taking advantage of recent gold price weakness to further build long positions," it said in a report.
"While short term gold price movements will likely continue to be affected by moves in the dollar, longer-term structural concerns about the potential implications of rising government debt burdens for fiat currencies and inflation, will likely keep demand for gold from strategic investors high."
Silver <XAG=> was at $17.91 an ounce from $17.81 an ounce. (Editing by Amanda Cooper)