Indexes rose in midday trading after Chinese President Xi Jinping eased tensions about a potential trade war between China and the U.S.
The S&P 500 rose 1.6% to 2,654.27. The Dow Jones Industrial Average climbed 1.7% to 24,395.05, and the Nasdaq increased 1.7% to 7,065.05.
The yield on a 10-year Treasury bond increased 0.5% to 2.80%.
The price of gold rose 0.2% to $1,342.
ShiftPixy Inc. (Nasdaq: PIXY) jumped 14% to $3.06 and an $88 million market cap. It's scheduled to report fiscal second-quarter results on April 13. Irvine-based ShiftPixy provides temporary and shift workers via an app.
Impac Mortgage Holdings Inc. (NYSE: IMH) climbed 6.2% to $8.29 and a $173 million market cap. Volume was about half the 90-day average for the Irvine-based mortgage provider.