The Dow Jones fell Wednesday ahead of the CPI inflation report and more testimony from Fed Chair Powell. Nvidia partner Super Micro surged.

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 ...

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 ...