* European shares up 0.8 percent, shrug off UBS earnings
* Japan gains 4.5 pct, catch-up from Tuesday global rally
* Wall Street set for more gains
* Dollar slips against major currencies
By Jeremy Gaunt, European Investment Correspondent
LONDON, March 11 (Reuters) - World equity markets shrugged off early worries about the banking sector on Wednesday to put in solid gains with Wall Street looking set to join in, a day after many investors had their best session since December.
Worries about China's economy, with news of a severely shrinking trade surplus, were also set aside in a general spree of bargain hunting.
MSCI's all-country world index <.MIWD00000PUS> was up 0.8 percent, adding to a 5 percent gain on Tuesday. The U.S. S&P 500 index <.SPX> alone gained nearly 6.4 percent overnight.
Sentiment in Europe was shaken early by UBS <UBSN.VX> <UBS.N>, which said its 2008 net loss had risen to 20.9 billion Swiss francs ($18.06 billion) from the previously reported 19.7 billion francs. [
]But it later recovered with investors looking for oversold equities, particularly in the banking sector.
"The market has been latching on to the idea that financials have priced in the worst. The market has digested UBS and decided they are not as bad as expected," said Bernard McAlinden, strategist at NCB Stockbrokers.
The pan-European FTSEurofirst 300 <
> was up 0.8 percent, after earlier being down around 1 percent. It gained more than 5 percent on Tuesday.Markets have entered a period of volatile trading in which good or bad news -- particularly about banks -- triggers sharp reactions almost daily. Tuesday's gains, for example, were set off by Citi <C.N> saying that it was profitable in the first two months of the year.
Earlier, Japan's Nikkei average <
> jumped 4.6 percent, a day after hitting a 26-year closing low. The benchmark gained 321.14 points to 7,376.12 while the broader Topix < > rose 2.7 percent to 722.28.UP AND DOWN
The dollar has also been swinging up and down on short shifts in sentiment. It was down slightly against a basket of major currencies after earlier gaining around a quarter of a percent <.DXY>.
The currency was initially lifted by safe haven flows after data showed China's trade surplus shrank to $4.84 billion in February. This was much lower than forecasts of a $27.3 billion surplus, and exports slid 25.7 percent on a year ago [
].Later, the euro rose 0.4 percent on the day to $1.2718 <EUR=>, having touched a two-week high of $1.2823 on trading platform EBS on Tuesday.
On euro zone government debt markets, the 10-year cash Bund yield <EU10YT=RR> was up 7 basis points at 3.067 percent. The interest rate-sensitive two-year Schatz yield <EU2YT=RR> was up 3 basis points at 1.357 percent. Bond yields move inversely with prices. (Additional reporting by Joanne Frearson; Editing by Andy Bruce)
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