* BOJ makes open-ended commitment to buy assets from 2014 * MSCI world share index hits new 20-month high * Yen falls briefly after BOJ but then reverses course * Oil and gold edge higher By Ellen Freilich NEW YORK, Jan 22 U.S. stocks were mixed on Tuesday after major Wall Street stock indices hit five-year highs and Japan promised a program of open-ended monetary easing to revive its listless economy. Analysts said investors held back on making large bets before a batch of corporate earnings. Both the Dow and S&P 500 closed at their highest levels since December 2007 on Friday, spurred by a strong start to earnings season. In early dealings in New York, the Dow Jones industrial average was down 6.15 points, or 0.05 percent, at 13,643.55. The Standard & Poor's 500 Index was down 1.62 points, or 0.11 percent, at 1,484.36. The Nasdaq Composite Index was down 2.52 points, or 0.08 percent, at 3,132.18. U.S. markets were closed on Monday for a public holiday. Despite stronger-than-expected financial results from major companies, including big banks, at the start of the quarterly reporting season, many investors are worried that other earnings reports will reflect economic uncertainty in the fourth quarter. A flare-up of concern about Germany's banks had limited impact. Safe-haven U.S. debt was down in price and benchmark 10-year yields rose to 1.87 percent from 1.85 percent late on Friday, before a three-day holiday weekend. The Bank of Japan, which has been under intense political pressure to overcome deflation and generate growth, hiked its inflation target to 2 percent and said that from 2014 it would adopt an open-ended commitment to buy assets. The move surprised markets, which had expected another incremental increase in its 101 trillion yen ($1.12 trillion) asset-buying and lending programme, though the delay before the easing measures kick in dulled the impact and saw the yen edge higher against the dollar. European shares, testing two-year highs in recent days, were choppy as markets latched on to a report that German regulators were simulating a separation of some banks' operations, and on rumors - later denied - that Deutsche Bank was preparing a profit warning. Frankfurt's DAX fell as much as 1.4 percent on the talk but then erased about half of that loss. The pan-European FTSEurofirst 300 was down just 0.1 percent on the day at 1,165. This is a busy week for U.S. earnings, with Google Inc , IBM, and Texas Instruments all on tap to report Tuesday. Tech earnings will be a particular focus after a disappointing sales outlook from Intel Corp last week. A better-than-expected reading from the German ZEW investor sentiment index helped the recovery in European shares. It rose sharply for a second consecutive month in January in a sign that the euro zone crisis is no longer hitting Europe's largest economy as hard as in late 2012. "There was a slight scare in Germany this morning which we saw particularly in the euro/dollar move but we have more or less recovered from that now," said Rabobank strategist Philip Marey. "The market is now looking to the U.S. open and today's data. The Richmond Fed index could underline the uncertainty businesses are facing not only from abroad but also from Capitol Hill (budget negotiations). But hopefully the homes sales data will be the more positive story." Equity markets, particularly in Japan, had risen strongly in the run-up to Tuesday's BOJ meeting, and the confirmation of the central bank's plans was enough to lift the MSCI world index 0.15 percent to a fresh 20-month high of 352.54 before momentum waned. Brent crude rose 0.4 percent to $112.20 a barrel, and gold was up 0.2 percent as the BOJ's easing action added to recent positive data from the United States and China, while growing confidence in the strength of China's economic recovery pushed copper up 0.5 percent to $8,100 a tonne. SPAIN GAINS General market sentiment was also supported by signs of a compromise to avert a U.S. fiscal crisis. Republican leaders in the U.S. House of Representatives have scheduled a vote on Wednesday on a nearly four-month extension of U.S. borrowing capacity, aimed at avoiding a fight over the looming need to raise the federal debt ceiling. Bond market investors also gobbled up a new 10-year Spanish bond, its first since November 2011, as the latest evidence of rising confidence following the European Central Bank's promise to buy Spain's bonds if necessary. Last week, Rome sold 6 billion euros of its first 15-year bond in more than two years, and Spain's Economy Minister Luis de Guindos said Tuesday's sale by his country drew estimated demand of around 24 billion euros, describing the sum as unprecedented. A government source close to the deal said Madrid would, however, sell no more than 7 billion euros so as to leave appetite in the market. "I'm under the impression that the (Spanish) Treasury is making the most of a benign market to increase its liquidity for whatever comes in the future," said Estefania Ponte, economist at Cortal Consors. GOOD DAY AT THE ZEW The upbeat German ZEW release, which put German investor and analyst morale at a 2-1/2 year high, prompted a fall in German government bonds and lifted the euro out of slide caused by the German bank jitters. The single currency remained down 1 percent on the day against the yen at 118.3 yen, however. Disappointment that there will be no immediate BOJ easing saw the yen strengthen across the board. The dollar also fell 1 percent against the yen to a session low of 88.365 yen. "There was some disappointment in markets that the BOJ would start their open-ended bond purchases only in January 2014, so we see some profit taking in dollar/yen," said Bernd Berg, global FX strategist at Credit Suisse. In Britain, sterling fell for the fifth straight session to hit an 11-month low against the euro, weighed down by a bleak outlook for the economy and public borrowing figures that reinforced fears it could lose its prized triple-A rating.
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