US Treasuries fell amid signs of better-than-expected growth in the American services sector last month, ahead of key reports on economic growth and employment.
Reports on the latest GDP and jobs data, due on Thursday and Friday respectively, are a key focus this week to gauge the odds that the US Federal Reserve might start easing its pace of bond buying.
The Institute for Supply Management's non-manufacturing, or services, index increased more than expected to 55.4 in October, from 54.4 in September. That helped push yields on 10-year bonds 5 basis points higher to 2.66 per cent.
"Today's data was generally stronger than anticipated and is suggesting that the economy may have withstood the shutdown better than anticipated," Christopher Sullivan, chief investment officer at United Nations Federal Credit Union in New York.
In afternoon trading in New York, the Dow Jones Industrial Average eked out a 0.02 per cent gain, while the Nasdaq Composite Index rose 0.11 per cent. The Standard & Poor's 500 Index edged 0.11 per cent lower.