* MSCI world index sets highest level since Nov 6; ECB eyed
* Banks are top gainers in Europe; US stress tests awaited
* Emerging mkts rally, sovereign debt spreads at 7-mth low
* Oil extends gains above $57/barrel on broad risk revival
By Mike Dolan
LONDON, May 7 (Reuters) - World stocks rose more than one percent on Thursday to their highest levels of 2009 as investors bet on a stabilisation of the ailing world banking system, battered emerging markets and the global economy at large.
The U.S. Treasury is due to release the results of "stress tests" of its major banks at 2100 GMT. Leaked reports show that about half will not need new capital and investors were encouraged by the clarity on how the others would cope with the most severe recession since World War Two. [
]Banking stocks everywhere were buoyed by this and further signs their businesses improved in the first quarter.
Banks were the top gainers on the European bourses in early trade. Barclays <BARC.L> was up 5.2 percent after it said its first quarter profit rose 15 percent from a year ago as strong growth at its investment bank arm made up for a big jump in bad debts. [
]HSBC <HSBA.L>, BNP Paribas <BNPP.PA>, UniCredit <CRDI.MI>, UBS <UBSN.VX> and Standard Chartered <STAN.L> were 2.4-3.7 percent higher.
"The overriding thought in the back of our mind is that these (U.S.) stress tests were probably always going to come up with a capital-raising figure that was comfortably within the remaining $110 billion left in the TARP," Deutsche Bank credit strategists told clients, referring to the money already agreed by the U.S. Congress to stabilise its banks.
"Where the authorities have been fortunate is that the economic data seems to be stabilising and the results of the tests are being released into a market thinking less about the worst-case scenario," they said.
Markets were further boosted by expectations the European Central Bank will trim its interest rates by a further quarter percentage point to 1 percent later on Thursday and possibly announce some extraordinary measures to get credit flowing. The decision is scheduled for 1145 GMT.
Together with Wednesday's better-than-expected U.S. private-sector employment numbers for April, all these signs are encouraging investors to seek high-yielding, more risky plays everywhere as they emerge from safe-havens of cash and government bonds.
"Risk is still in favour this morning," said Investec chief economist Philip Shaw.
RALLY BUILDS MOMENTUM
At 0845 GMT, European stocks <
> were up 1.5 percent and were on course for a seventh consecutive daily rise.The MSCI All-World index added 1.1 percent to as high as 239.12 points -- above the previous 2009 peak of 237.84 points on January 6.
The index has now risen more than 38 percent since its trough on March 9.
Wall St shares <.SPX> gained almost two percent late on Wednesday, with a key measure of market volatility and risk, the so-called Vix <.VIX> or "fear gauge", falling to its lowest level since September 22 -- shortly after Lehman Brothers filed for bankruptcy protection and global markets seized up. Other gauges of risk appetite reinforced the more positive sentiment. European credit premia fell on Thursday, with the Markit iTraxx Crossover index of junk-rated credits <ITEXU5Y=GF> down almost 18 basis points to 752. Emerging sovereign bonds too have benefited from the rise in risk appetite with yield spreads versus U.S. Treasuries narrowing to 475 basis points on JP Morgan's benchmark EMBI Plus index <11EMJ>. This is a contraction of about 50 bps so far this month and more than 200 bps since the start of 2009.
Emerging equities extended gains, rising one percent to fresh seven-month highs <.MSCIEF>. The index has risen over 27 percent since the start of the year.
The relatively high-yielding Australian dollar <AUD=> hit a 7-month high. The euro <EUR=> retreated slightly against the dollar as the ECB rate cut was awaited.
Lifted by speculation of improved world demand going forward, U.S. crude oil <CLc1> rose more than 1 percent to $57.93 a barrel.
The June Bund future <FGBLc1> fell 0.4 percent, as the stocks boom outweighed likely ECB easing later on Thursday.
"The market now holds the view that the worst may be over, at least for America. A very strong bull market appears to have begun," said Fumiyuki Nakanishi, manager at SMBC Friend Securities in Japan. (Additional reporting by Jane Baird and Kirsten Donovan; editing by Chris Pizzey and Andy Bruce)