Explained: Wall Street's flip from AI to less-loved stocks accelerates, while oil prices keep easing

The S&P 500 added 0.2% while the Dow Jones Industrial Average jumped 537 points, or 1%, and the Nasdaq composite slipped 0.2%

S&P 500

A stock market index tracking 500 large U.S. companies, used as a broad market benchmark

Brent crude

A major international benchmark price for oil

Treasury yield

The return investors earn on U.S. government bonds, which affects borrowing costs

Strait of Hormuz

A waterway used by oil tankers to move crude, geopolitically sensitive due to Middle East tensions

Conference Board

An organization that surveys and reports on U.S. consumer confidence