NEW YORK Stock markets fell and the euro hit a two-year low on Tuesday as rising Spanish borrowing costs drove Madrid closer to a full-scale bailout, while Greece's membership in the euro zone was at risk as its finances appeared to be off its aid package terms.
U.S. equities, pressured further by lowered 2012 U.S. profit forecasts, staged a late-day comeback off technical support on the S&P 500 and as the Wall Street Journal said the Federal Reserve was ready to act in support of a flagging U.S. economy.
Top Fed officials recently have spelled out what measures they might take to boost growth and hiring, including Chairman Ben Bernanke in a speech last week.
Risk aversion during the session drove the benchmark U.S. 10-year Treasury note yield to a fresh historic low.
Spanish yields climbed above 7.6 percent on its 10-year bond, reflecting a growing belief that the country will need a bailout that the euro zone can ill afford.
As inspectors from Greece's three international creditors returned to Athens to decide whether to keep a 130-billion-euro lifeline active, three European Union officials said they were likely to conclude the country cannot repay what it owes.
"People are jumping to the conclusion (Greece) won't get any more money than (what) they need to in order to pay back the ECB and therefore they will exit the euro," said Gail Dudack, chief investment strategist at Dudack Research Group in New York.
She said she didn't see the Greek exit as imminent but "much further out in history."
The Dow Jones industrial average .DJI fell 104.14 points, or 0.82 percent, to 12,617.32. The S&P 500 Index .SPX dropped 12.21 points, or 0.90 percent, to 1,338.31. The Nasdaq Composite .IXIC lost 27.16 points, or 0.94 percent, to 2,862.99.
The late bounce in equities was linked to expectations of a Fed move to support the economy, a recurring theme of late on Wall Street as macro data has softened in the last several weeks.
"Given the events going on around the world, I think the odds are increasing the Fed will take action at one of the next two meetings," said Michael Sheldon, chief market strategist at RDM Financial in Westport, Connecticut.
Quarterly results from Apple (AAPL.O), which missed analysts' revenue forecasts, could snap hopes for a rebound on Wall Street on Wednesday.
Apple shares dropped more than 5 percent after the closing bell. S&P futures fell 6 points, or 0.5 percent in light trading after Apple's earnings report.
In the regular session, the MSCI world equity index .MIWD00000PUS fell 0.7 percent after losing 1.7 percent on Monday. The FTSEurofirst 300 index .FTEU3 of top European shares closed down 0.55 percent a day after a 2.4 percent drop.
Italy's benchmark FTSE MIB .FTMIB stock index fell 2.7 percent to close at its lowest since the 1999 launch of the euro.
Further weighing on Wall Street, U.S. manufacturers lowered on Tuesday 2012 sales and profit forecasts even as several companies reported higher-than-expected quarterly earnings.
Shares of UPS, seen as a bellwether of the overall economy, dropped 4.6 percent, and its top rival FedEx (FDX.N) lost nearly 2 percent.
"You look at UPS and FedEx and you think they are sort of the temperature-takers of what is going on. If they are tanking, why should I step in front of that moving train?" said Cummins Catherwood, managing director at Boenning and Scattergood in West Conshohocken, Pennsylvania.
The euro hit $1.2040, its lowest since June 2010 versus the U.S. dollar, and was last down 0.4 percent, marking its fifth day of declines for a total drop of 1.9 percent.
Rating agency Moody's on Monday changed its outlook for Germany to negative, in part on the potential cost to Berlin if Spain needs more financial help. Moody's also cut the outlook for the Netherlands and Luxembourg to negative from stable.
"It is underlining the fact that whatever resolution for Europe ... will ultimately undermine the stronger members of the euro zone," said Tommy Molloy, chief dealer at FX Solutions in Ridgewood, New Jersey.
U.S. and European manufacturing showed signs of weakness. A stronger factory reading out of China gave commodities support, but the sharp decline in the euro reversed gains in copper and stalled the recent advance in oil prices.
Data showed Europe's economic troubles caused a sharp slowdown in German factory activity, although an improvement in China's manufacturing sector supported oil and copper prices.
U.S. data showed manufacturing expanded at its slowest pace since late 2010, hobbled by weak overseas demand for American goods, though a rise in domestic orders helped cushion the blow.
U.S. Treasuries were steady at higher levels after a 2-year note auction, part of $99 billion in new debt sales planned for this week. The benchmark 10-year note was up 14/32, with the yield at 1.3892 percent, an all-time low.
Three-month copper on the London Metal Exchange fell 0.1 percent after having risen more than 1 percent.
Oil prices fluctuated in choppy trading. Brent edged up 4 cents to $103.30 a barrel and U.S. crude gained 7 cents to trade at $88.21.