In late afternoon trading in New York, the Dow Jones Industrial Average gained 0.18 per cent, while the Standard & Poor's 500 Index fell 0.22 per cent and the Nasdaq Composite Index edged up 0.04 per cent.
US economic data released today were better than anticipated, though failed to brighten the mood. Initial claims for state unemployment benefits fell 23,000 to a seasonally adjusted 340,000 last week, according to Labor Department data.
New single family home sales increased 2.3 per cent in April to a 454,000-unit pace, while the median sales price for a new home rose 14.9 per cent from a year ago to a record US$271,600.
"All the eggs are in housing and the consumers' baskets this quarter. Outside that, there is going to be little support to growth," Ryan Sweet, a senior economist at Moody's Analytics in West Chester, Pennsylvania, told Reuters.
Bucking the trend today, shares of Hewlett-Packard jumped, last up 14.7 per cent, after the computer maker lifted its 2013 earnings outlook.
"She [Chief Executive Officer Meg Whitman] clearly has the company focused on profit and cash flow and that's coming through in the earnings," Shannon Cross, an analyst at Cross Research in Millburn, New Jersey, who rates the stock a hold, told Bloomberg. "It shows they're able to drive margin at businesses that are under significant revenue pressure."
Europe's benchmark Stoxx 600 Index shed 2.1 per cent. Yesterday European shares had closed higher, ending the session before Bernanke suggested the US central bank could taper its bond-buying as soon as next month.
The UK's FTSE 100, France's CAC 40 and Germany's DAX each also closed with declines of 2.1 per cent.