By Natsuko Waki
LONDON, April 1 (Reuters) - World stocks began the new quarter on a positive note on Tuesday as revelations of huge losses at major European banks suggested that financial firms are coming clean on their woes.
Oil, gold and other commodity prices fell, pushing the euro -- highly correlated to fluctuations in commodity prices -- down to a one-week low against the dollar.
Overnight interbank rates for dollar, euro, sterling fell after a recent series of central bank moves to inject liquidity eased quarter-end market strains seen last week.
UBS <UBSN.VX> wrote down an additional $19 billion from the U.S. subprime mortgage crisis, causing a net loss of 12 billion Swiss francs ($12.03 billion) in the first quarter, and said it would seek 15 billion francs through a rights issue of shares.
Deutsche Bank <DBKGn.DE> unveiled 2.5 billion euros of writedowns, equivalent to more than a third of its 2007 net profit.
The eight-month-old credit crisis has hit the world's major banks and threatened to damage corporate profits and derail global economic growth. However, as more banks reveal the extent of the damage investors believe they can see the light at the end of the tunnel.
"The one saving grace in this is that banks are acting quickly to highlight their exposure. The quicker the bad news is out in the open then the quicker we can start to repair the problems," said Peter Dixon, economist at Commerzbank.
"Every bank which comes out with a big number nudges us that much closer to the end of the write-off cycle."
The FTSEurofirst 300 index <
> rose 1.5 percent to a two-week high. MSCI main world equity index <.MIWD00000PUS> was up 0.1 percent on the day, having lost nearly 10 percent since the start of the year.UBS shares rose seven percent, fooling many who had thought before the market open that the shares would sink.
"They've separated all their toxic waste. If they're going to finance that then everyone is saying this is the beginning of the end, this is the last capital increase," a London-based trader said.
U.S. stock futures <SPc1> were pointing to a firmer open on Wall Street later. Tokyo stocks rose more than one percent <
>, led by blue chip exporters.Sentiment also improved in the credit and emerging markets. The iTraxx Crossover index <ITCRS5EA=GFI>, most-widely watched indicator for European credit market sentiment, tightened 3 basis points to 570 bps. Emerging sovereign spreads <11EMJ> tightened 3 bps.
Emerging stocks <.MSCIEF> were steady, while European government bonds were weaker, with the June Bund future <FGBLM8> down 40 ticks.
EURO AND COMMODITIES
The euro fell as low as $1.5625 <EUR=>, edging further away from its record high above $1.59 set in March.
"(A) background negative for European currencies... is the latest correction in commodity prices. These markets look less and less stable by the day," Bank of Scotland Treasury said in a note to clients.
"Our impression is that they are crammed full of real money allocations hoping/praying that China generates sufficient demand growth to offset the effect of economic weakness in an increasingly large proportion of the developed world. This is despite the repeatedly stated desire of Chinese policymakers to both slow growth and curb inflation."
U.S. light crude oil <CLc1> was down 0.6 percent while gold <XAU=> -- a traditional safe-haven asset -- fell to $892.50 an ounce. Cooper, coffee, sugar, vegetable oils and soybeans -- all priced in dollars -- also fell.
In the money markets, overnight euro London interbank offered rates fell almost 13 basis points to 4.05750 percent <LIBOR>. Overnight rates for dollar, sterling and Swiss franc also fell.
(Additional reporting by Rebekah Curtis and Amanda Cooper)