Nvidia shares slumped 17% in a single day, erasing about $590 billion from the company’s market capitalization, after the Chinese AI startup claimed high performance at a lower cost. The stock has ...

The Dow Jones sold off Wednesday on a hot CPI inflation report ahead of more testimony from Fed Chair Powell. Nvidia partner Super Micro surged.

US economists are looking for monthly headline CPI at 0.31%, which would keep the year-on-year rate at 2.9%. Core CPI is ...