Data showing a stronger-than-expected advance in pending US home sales last month has underpinned Wall Street at the start of the week, and an easing of the price of oil also helped.
In early afternoon trading in New York, the Dow Jones Industrial Average eked out a 0.11 per cent gain, the Standard & Poor's 500 Index rose 0.13 per cent and the Nasdaq Composite Index advanced 0.18 per cent.
In the US, the National Association of Realtors said its Pending Home Sales Index, based on contracts signed in January, rose 2 per cent to 97.0, the highest reading since April 2010. December's reading was revised down to 95.1 from a previously reported 96.6.
Economists polled by Reuters had expected signed contracts to advance 1.0 per cent.
"Housing demand has bottomed, and we should see some gradual improvement in sales," Yelena Shulyatyeva, an economist at BNP Paribas in New York, told Bloomberg News.