Stock Market Recap for Monday, March 23, 2026

The major U.S. stock indexes rallied today, March 23, 2026, driven by relief after President Trump announced postponing strikes on Iranian energy infrastructure amid productive talks with Tehran, easing geopolitical tensions and pushing oil prices lower. The S&P 500 climbed 1.15% (+74.52 points) to close at 6,581.00, the Dow Jones Industrial Average rose 1.38% (+631.00 points) to close at 46,208.47, and the Nasdaq Composite gained 1.38% (+299.15 points) to close at 21,946.76. In dollar terms, the broader market (approximated by the S&P 500's roughly $58–60 trillion cap) added an estimated $650–700 billion in value during the solid relief-driven rally.