New Delhi, April 23 -- US stock indices jumped at the open on Wednesday after President Donald Trump said he has no plans to remove Federal Reserve Chair Jerome Powell and on hopes for a trade deal with China.

At 10:52 AMEDT, the Dow Jones Industrial Average rose 2.54%, the S&P 500 surged 3.04%, and the Nasdaq Composite advanced 4.04%.

At the opening bell, the Dow Jones Industrial Average rose 628.0 points, or 1.60%, to 39,815.01. The S&P 500 rose 108.2 points, or 2.05%, to 5,395.92​, while the Nasdaq Composite rose 579.9 points, or 3.56%, to 16,880.29.

In the bond market, Treasury yields fell sharply after Trump's comments. The yield on the 10-year Treasury dropped to 4.27% from 4.41% late on Tuesday.

After days of criticism of...