By Ryan Vlastelica
NEW YORK (Reuters) - U.S. stocks fell on Tuesday after opening higher as uncertainty surrounded Spain's financial bailout and investors worried about disappointing third-quarter U.S. earnings.
The Dow was pressured by stocks closely tied to the pace of growth, including Caterpillar Inc
Spain was said to be ready to ask the euro zone for help, but Germany has signaled that Madrid should hold off on making its request, according to European officials on Monday.
"Spain being rescued would be good for risk assets and ultimately global growth, but while the benefits are largely priced in, we're still getting conflicting signals that understandably have investors apprehensive," said Brian Barish, president of Cambiar Investors LLC in Denver.
The S&P rose nearly 6 percent in the third quarter, lifted by accommodative actions by the U.S. Federal Reserve and European Central Bank, which market participants bet would boost flagging growth.
If Madrid were to seek a rescue, it would trigger European Central Bank buying of its bonds and help to ease U.S. investors' nervousness about the euro zone's impact on the U.S. economy.
"Until we get some kind of clarity, we should expect a lot of volatility and difficulty holding onto gains," said Barish, who helps oversee $7 billion in assets.
The Dow Jones industrial average <.DJI> was down 81.90 points, or 0.61 percent, at 13,433.21. The Standard & Poor's 500 Index <.SPX> was down 3.73 points, or 0.26 percent, at 1,440.76. The Nasdaq Composite Index <.IXIC> was down 1.92 points, or 0.06 percent, at 3,111.61.
The Dow and S&P 500 extended losses and the Nasdaq turned negative, with weaker-than-expected results from Mosaic
Mosaic tumbled 4.7 percent to $55.27 as the S&P's biggest percentage decliner after reporting earnings and revenue that missed expectations.
JPMorgan Chase & Co
JPMorgan shares edged down 0.8 percent to $40.65.
Major car companies reported September sales, with General Motors
GM, the largest U.S. automaker, reported a 1.5 percent increase, while Ford reported sales on par with its results from a year earlier. Chrysler showed a 12 percent jump in sales.
PetSmart Inc
Hedge fund manager David Einhorn again made critical comments about Green Mountain Coffee Roasters Inc
Shares of ArQule Inc
(Editing by Kenneth Barry)