Stock markets waver after Nvidia's earnings report

What happened

Wall Street stocks swung between gains and losses in late trading hours following Nvidia's earnings release. Traders grew cautious, and bond prices fell as expectations grew that the Federal Reserve could raise interest rates this year.

Why it matters

Nvidia is one of the world's most important companies for the tech-heavy stock indexes that show up in your investment portfolio or retirement fund. When Nvidia reports earnings and the stock moves sharply, it tugs on the entire market. A stock market that wavers is a sign investors are uncertain about what comes next, which affects job security and the value of any savings you have in stocks.