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* Euro advances as China affirms FX diversification policy
* China refutes report it's reviewing euro bond holdings
* Bargain-hunting helps global stocks gain traction
By Emelia Sithole-Matarise
LONDON, May 27 (Reuters) - The euro and European shares pushed higher on Thursday after China denied a report it was looking to cut its euro zone sovereign debt holdings.
Crude oil prices rose above $72 a barrel on the back of advances in stock markets which bolstered positive sentiment from data the previous day showing a surge in U.S. demand.
The euro - pressured by persistent uncertainty about the scale of the single currency zone's debt crisis - received badly needed support from the Chinese central bank, which said Europe remained a key investment market for its foreign exchange reserves.
Traders said a report stating Kuwait was mulling reducing investments in the euro zone later knocked the euro off its highs.
The euro had shed 1.5 percent after the Financial Times reported China's State Administration of Foreign Exchange (SAFE) was meeting foreign bankers because of concerns about its exposure to debt troubles in Europe.
That report was groundless, said SAFE, the arm of the central bank that manages China's $2.4 trillion in foreign exchange reserves -- the world's largest stockpile.
"The China comments downplaying the alleged change in diversification policy are reassuring on the surface and that has helped the euro rise," said Lee Hardman, currency analyst at BTM-UFJ.
"But it comes down to actions rather than words and if the European debt crisis keeps rising, there will be less attraction for China to diversify from dollars into euros," he said.
The euro extended gains against the dollar to a session high at $1.2342, up 1.4 percent on the day after the Chinese comments. By 1115 GMT, the euro was up 1.0 percent at $1.2279.
China has been trying to diversify its currency reserves to reduce the dollar's dominance in favour of the euro and yen to curb risks.
BARGAIN-HUNTING BOOSTS STOCKS
The MSCI index of world stocks rose 1 percent as investors picked up shares beaten down in a sell-off fuelled by fears Europe's debt crisis could spark a credit crunch and undermine the global economic recovery.
The pan-European FTSEurofirst 300 index rose over 2 percent to a one-week high of 994.92. The index remains down around 11 percent from a mid-April peak, on worries about Europe's debt crisis.
Attractive stock valuations and technically oversold conditions prompted selective buying in Asia, but investors are treading cautiously amid persistent concerns over the economic fallout from the euro zone's debt woes.
"There's still a general reflection that equity markets have become pretty oversold during the last couple of weeks. Global economic numbers all look good still and... it's a good day for the bargain hunters," said Jim Wood-Smith, head of research at Williams de Broe.
A Reuters poll released on Thursday showed big investors kept relative faith with Europe despite the debt crisis, with allocations within equities to the euro zone rising to 23.2 percent in May from 22.3 percent a month earlier.
A rise in U.S. stock futures provided an additional boost. S&P futures climbed 2.4 percent, with some in the market saying they thought U.S. shares were due a technical rebound.
U.S. Treasuries and euro zone government bond prices retreated as the rally in equities cut bids for fixed income assets.
Gold ticked higher on safe-haven buying.
Spot gold was at $1,214.15 an ounce by 1130 GMT from 1.209.90 late in New York on Wednesday. The metal hit a record high of $1,248.95 in mid-May.
(Additional reporting by Brian Gorman and Neal Armstrong in London, editing by Mike Peacock, John Stonestreet)