How major US stock indexes fared Monday 4/27/2026

The U.S. stock market’s record-breaking rally slowed after uncertainty rose over the weekend about what will happen next in the Iran war. The Dow Jones Industrial Average dipped 0.1%, and the Nasdaq composite added 0.2% to its own record. Crude prices climbed more than 2% as oil tankers still find the Strait of Hormuz effectively closed to traffic.