U.S Treasury yields were heading back towards 5 percent yesterday, dragging shares around the world to multi-month lows in the middle of a busy week for corporate earnings, with the release of U.S. GDP to come later in the day.
 
A rebound in U.S. home sales and an auction of five-year notes that showed weak demand were the latest trigger for concern in the bond market, which saw the U.S. 10-year Treasury yield rise 11 basis points yesterday.
 
The Dow Jones Industrial Average lost 0.3 percent, the S&P 500 fell 1.4 percent and the Nasdaq Composite tumbled 2.4 percent.