* Euro gains on expectations of rise in interest rates
* Stocks buoyant, Wall Street starts higher
* Commodities power higher; gold hits record high
* Portugal sells 1 bln euros in T-bills, yields spike (Updates prices, adds details)
By Leah Schnurr
NEW YORK, April 6 (Reuters) - The euro rallied on Wednesday ahead of an expected interest rate hike in the euro zone, while the weaker dollar and geopolitical unrest sent oil and gold prices to fresh peaks.
The euro surged more than 1 percent to an 11-month high against the Japanese yen <EURJPY=>, one day before the European Central Bank is widely expected to raise its benchmark interest rate by 25 basis points to curb inflation pressures.
The ECB has held rates at a record low 1.0 percent since July 2008. The Bank of Japan, on the other hand, is expected to keep interest rates low at its policy meeting on Thursday following last month's massive earthquake and tsunami, and more losses are expected for the yen. <ECBWATCH>
Unrest in the Middle East and North Africa continued to drive safety bids. A weaker greenback also makes dollar-priced assets more affordable to holders of the euro and other currencies.
"Central bankers will always claim that they have no influence on oil prices but recent history has repetitively shown that in the new world, where commodities are a global asset, central bankers can have a greater influence on oil prices than OPEC," said Olivier Jakob from Petromatrix.
The euro jumped to 122.15 yen and is up about 12.4 percent against the currency so far this year, according to Reuters data. It last traded at 122.08 yen, up 1.1 percent on the day.
The Reuters-Jefferies CRB index <.CRB>, which tracks 19 markets, rose to a one-month intraday high and was most recently trading up 0.1 percent.
Spot gold <XAU=> rose to a record high, silver <XAG=> touched a 31-year high, and Brent crude <LCOc1> rose $1 to break through $123 a barrel, its highest level since August 2008. U.S. crude <CLc1> rose above $109 to its highest since September 2008.
Global equities gained on a generally brighter economic picture. U.S. stocks struggled to hold earlier solid gains in late morning as investors refrained from making big bets before corporate earnings season next week provides the next catalyst for stocks. Mining shares rose with gold prices.
Portugal added to the positive tone after the battered euro zone peripheral economy successfully sold six- and 12-month treasury bills but had to pay a steep price in interest. [
]Emerging markets also rose, helped by renewed interest due to higher expectations for interest rates in developed markets. Shares of European banks rose after the successful Portuguese debt auction. For details, see [
]World stocks as measured by MSCI <.MIWD00000OOPUS> were up 0.5 percent percent, while the S&P 500 <.SPX> was up 0.3 percent. Emerging markets <.MSCIEF> rose 0.9 percent and Europe's FTSEurofirst 300 <
> provisionally closed up 0.3 percent.The Dow Jones industrial average <
> added 8.93 points, or 0.07 percent, to 12,402.83. The Standard & Poor's 500 Index <.SPX> edged up 0.22 points, or 0.02 percent, at 1,332.85. The Nasdaq Composite Index < > put on 1.17 points, or 0.04 percent, to 2,792.36."There is really no significant news that is going to drive stocks until earnings comes out," said Jack Ablin, chief investment officer, Harris Private Bank in Chicago.
"Next week it kicks off and that to me is wild card, costs have gone up and analysts continue to ratchet profit expectations higher."
Data showing that German industrial orders soared above expectations in February brightened the outlook for Europe's top economy. Orders grew by 2.4 percent on the month, compared to the Reuters forecast for an increase of 0.6 percent. [
].Portugal sold a total of 1.005 billion euros ($1.43 billion) in 12-month and six-month T-bills, but yields rose sharply from previous auctions last month.
The 12-month T-bill yield rose to 5.902 percent from 4.331 percent in the previous auction three weeks ago, while the yield on the shorter maturity rose to 5.117 percent from 2.984 percent in a sale in early March.
Demand, however, outstripped supply by 2.6 times for the 12-month t-bills and by 2.3 times for the six-month T-bills. (Additional reporting by Rodrigo Campos, Nick Olivari and Barani Krishnan in New York, Dmitry Zhdannikov in London; Editing by Leslie Adler)