* Equities rally in Europe, Asia after corporate earnings
* Euro declines after Portuguese debt auction
* Coming up: Fed chair Bernanke's testimony before Congress
(Updates prices, adds comment, detail)
By Jan Harvey
LONDON, July 21 (Reuters) - Gold firmed in Europe on Wednesday after a weak Portuguese debt auction stoked concerns over the fragility of the euro zone banking sector, knocking the euro, but gains were limited by softer investment demand.
A 6.1-tonne fall in holdings of the world's largest gold-backed exchange-traded fund, the SPDR Gold Trust <GLD>, on Tuesday, their biggest one-day decline since December, indicates waning investor confidence in the metal, analysts said.
Spot gold <XAU=> was bid at $1,194.15 an ounce at 1331 GMT, against $1,191.40 late in New York on Tuesday. U.S. gold futures for August delivery <GCQ0> rose $2.70 an ounce to $1,194.40.
"I think gold can get back above $1,200 an ounce," said Citigroup analyst David Thurtell.
"There was a lot of buying in April, May and June on the back of these sovereign debt worries. Once some of those fears subsided, gold came down again, but there are still enough people out there who are worried to buy gold below $1,200."
The euro slipped versus the dollar on Wednesday after the Portuguese debt auction. Portugal sold 1.25 billion euros in 12-month Treasury bills, but the average yield more than doubled from the last sale, indicating caution. [
] [ ]Equities meanwhile performed strongly, with world stocks rising after strong earnings and forecasts from tech heavyweight Apple raised expectations for solid second-quarter results from other major companies. [
]European shares surged, while U.S. stocks rose at the open. [
] [ ]Among other commodities, oil rose above $78 a barrel and base metals like copper strengthened after strong U.S. corporate earnings raised optimism over the strength of the recovery in the world's largest economy. [
] [ ]Looking ahead, the financial markets are awaiting Federal Reserve Chairman Ben Bernanke's testimony on economic and monetary policy before Congress later on Wednesday.
Analysts will be watching for any suggestion that the Fed may extend its programme of quantitative easing.
STEADY SLIP
Gold has slipped since reaching a record $1,264.90 an ounce at the end of June, boosted by investment in the metal as a haven from volatility in other markets amid concerns over the economic outlook and euro zone sovereign debt levels.
The outlook for bullion remains broadly positive, however.
Respondents to a Reuters poll of 55 analysts, traders and fund managers said they see gold prices posting an eleventh year of gains in 2011 as investors seek refuge from an uncertain global economic outlook. [
]The poll showed expectations for gold prices in 2011 have risen by nearly 7 percent to a median $1,228 an ounce since a similar survey conducted in January. For 2010, expectations for gold have risen by 4 percent to a median $1,197.00 an ounce.
"The market is expected to derive strength from further economic pitfalls and the near-zero interest rates maintained by the U.S. Federal Reserve," said Harish Galipelli, head of commodity research at JRG Wealth Management. <^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
For a graphic detailing the poll results, click on: http://graphics.thomsonreuters.com/F/07/CMD_PRCPL0710.html
For a Reuters Insider interview on the poll results, click on: http://link.reuters.com/vyp58m ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^>
Among other precious metals, silver <XAG=> was at $17.81 an ounce versus $17.65, platinum <XPT=> at $1,523.50 against $1,512.95 and palladium <XPD=> at $452.03 versus $449.53.
Refiner Johnson Matthey reported a 47 percent rise in first-quarter profit as it recovered from a slump in demand, and forecast an improved full-year performance.
The platinum refiner and the world's largest supplier of catalytic converters said on Wednesday April-June sales excluding precious metals rose 32 percent year on year.
Falling demand for automotive products hit the group last year as the recession took its toll on sales. (Editing by James Jukwey)