(Adds U.S. market open, byline, dateline; previous LONDON)
* Dollar rises broadly, supported by U.S. economic data
* Stocks on Wall Street rally, European shares decline broadly
* Oil steady as high U.S. stockpiles counter supply fears
* Global shares performance year-to-date: https://tmsnrt.rs/2IERhC0
By Herbert Lash
NEW YORK, April 24 (Reuters) - The euro fell against the U.S. dollar on Wednesday after data showing a surprise deterioration in business morale in Germany stoked fears of slowing global growth and weighed on a gauge of world equity markets.
The decline in the Munich-based Ifo economic institute's business climate index bucked expectations for a small improvement and sent U.S. Treasury yields reeling as investors piled into safe-haven bonds.
Reports of a sharp slowdown in Australian inflation also lifted bond prices, while Premier Li Keqiang in China said authorities should not underestimate the difficulties in the Chinese economy, adding to concerns about global growth.
Signals that China has put broader stimulus on hold curbed demand for European equities and overshadowed strong earnings from the likes of Credit Suisse and SAP, which led Germany's DAX index index to rise 0.45%.
MSCI's gauge of stocks across the globe shed 0.14%, and the pan-European STOXX 600 index also lost 0.14%.
Wall Street shrugged off some earnings misses and rose slightly. Boeing Co gained 0.8% after the planemaker reported first-quarter free cash flow that was ahead of many analysts' estimates, helped by improved performance from its 787 Dreamliner program.
U.S. corporate earnings have been much better than expected and are driving the benchmark S&P 500 index and Nasdaq index to new highs, though the pace of gains should slow, said Michael Arone, chief investment strategist at State Street Global Advisors in Boston.
"You're seeing a transition, at least for today," he said.
"It's defensive sectors of the market, REITs, utilities and staples are leading the way, whereas some of your cyclical-oriented shares are struggling a bit with those renewed growth concerns," he said.
The Dow Jones Industrial Average rose 1.64 points, or 0.01%, to 26,658.03. The S&P 500 gained 1.84 points, or 0.06%, to 2,935.52 and the Nasdaq Composite added 17.26 points, or 0.21%, to 8,138.08.
The dollar index, which measures the U.S. currency against a basket of six major rivals, was up 0.12% at 97.753, its highest since June 2017.
The euro was down 0.26% at $1.1196, while the Japanese yen strengthened 0.09% versus the greenback at 111.78 per dollar.
In a sign of bullish sentiment, the Treasury yield curve continued to steepen, hitting its widest level since November 2018. Benchmark 10-year notes last rose 14/32 in price to push their yield down to 2.5217%.
Oil prices steadied near six-month highs after data that showed U.S. stockpiles rose to their highest since October 2017. That countered fears of tight supply resulting from OPEC output cuts and U.S. sanctions on Venezuela and Iran.
Brent crude futures rose 1 cent to $74.52 a barrel, while U.S. West Texas Intermediate crude futures fell 39 cents to $65.91 a barrel.
(Reporting by Herbert Lash; Editing by Bernadette Baum)