* Euro falls broadly as Greek borrowing costs surge
* Greek debt yields at 12-year highs as patience runs thin
* Oil rises above $84 a barrel
* Global shares flat even as corporate results surprise (Updates with close of European markets)
By Herbert Lash
NEW YORK, April 21 (Reuters) - The euro fell broadly on Wednesday as Greek borrowing costs hit 12-year highs on growing impatience over Greece's festering debt crisis, while global stocks slid despite strong U.S. corporate earnings.
The euro fell for the fifth day versus the U.S. dollar to a near two-week low as the premium investors demand to hold Greek government bonds rather than German Bunds surged past 500 basis points. For details see: [
]Greece is still pushing to finance its debt through market issuance but investors increasingly believe Athens will have to tap a joint European Union-International Monetary Fund emergency loan package.
Investors' and traders' patience wore thin after Greece's finance minister said talks with European and IMF officials will last two weeks. [
] [ ]The move to dump Greek debt may force Athens to take aid sooner rather than later, even as Standard & Poor's rating agency said it does not expect Greece to default. [
]The yield on 10-year Greek debt rose to 8.4 percent, up more than two and one-half percentage points since the start of 2010 and 2.5 times the 3.085 percent yield that Germany pays.
"Despite all the comments and help from the euro zone, EU and IMF, the markets remain too skeptical," said Win Thin, senior currency strategist at Brown Brothers Harriman in New York.
"The Europeans have been dragging their feet. The policy reaction has been pretty lackluster," he added. "It calls into question investors' confidence in the euro zone as a whole."
The euro <EUR=> was down 0.25 percent at $1.3402.
Stocks were mostly little changed, pulled between solid corporate results and Athens' woes.
MSCI's all-country world index <.MIWD00000PUS> was down 0.2 percent, and the pan-European FTSEurofirst 300 <
> closed down 0.7 percent at 1,096.10 points.Banking shares in Europe snapped the previous session's gains to feature among the day's worst performers.
"The equity market's problems are really because of the sovereign debt concerns and the political discussions surrounding it ... there is still uncertainty," said Giuseppe-Guido Amato, strategist at Lang & Schwarz in Frankfurt, Germany.
"U.S. company earnings have been good, but investors are still staying on the sideline."
U.S. stocks drifted lower on losses in health care and energy stocks, offsetting strong gains by blue chips Apple Inc <AAPL.O> and Morgan Stanley after their earnings beat analysts' expectations. [
]"There is a rotation of money flow from health-care stocks to technology, supported by strong earnings from the sector, including Apple," said Arthur Hogan, chief market analyst at Jefferies & Co in New York.
Other U.S. bellwethers that surprised on the upside included AT&T Inc <T.N>, Boeing Co <BA.N>, McDonald's Corp <MCD.N> and diversified U.S. manufacturer United Technologies Corp <UTX.N>, all of which are Dow components.
The Dow Jones industrial average <
> was up 20.63 points, or 0.19 percent, at 11,137.69. The Standard & Poor's 500 Index <.SPX> was up 0.89 points, or 0.07 percent, at 1,208.06. The Nasdaq Composite Index < > was up 1.95 points, or 0.08 percent, at 2,502.26.The S&P health care sector <.GSPA> fell more than 1 percent, with Abbott Laboratories <ABT.N> down 2 percent to $52 after it trimmed its current-year forecast, citing the costs of U.S. health-care reform.
Oil prices rose above $84 a barrel even after U.S. government data showed an unexpected increase in crude inventories and fuel stocks. [
]U.S. crude futures <CLc1> rose 40 cents to $84.25 a barrel, reversing earlier declines.
Copper prices fell more than 1 percent and gold trimmed earlier gains as the euro fell broadly. Bullion managed to hold its ground as worries about Greece spurred safe-haven buying. ID:nLDE63K13B
Industrial metals analysts said robust Chinese imports data kept them bullish about copper for the longer-term. [
]Prices of longer-dated U.S. government debt rose while shorter-dated notes and bills held steady, as investors swapped risky Greek and Portuguese bonds for Treasuries and German bunds.
The benchmark 10-year U.S. Treasury note <US10YT=RR> was up 10/32 in price to yield 3.76 percent. The 2-year U.S. Treasury note <US2YT=RR> was down 1/32 in price to yield 1.02 percent.
Spot gold prices <XAU=> rose $7.35 to $1,147.30 an ounce. (Reporting by Rodrigo Campos, Wanfeng Zhou, Emily Flitter in New York; William James, Harpreet Bhal, Joe Brock and Humeyra Pamuk in London; Writing by Herbert Lash; Editing by Leslie Adler)