US stocks hit record highs in April 2026 on strong earnings and AI investment.

U.S. stocks surged to record highs in April 2026, marking the best monthly performance since late 2020. Driven by strong corporate earnings, robust economic growth, and AI investments, the S&P 500 and Nasdaq reached record levels while the Dow jumped significantly. Despite inflation concerns and Middle East tensions, resilient data and solid profit forecasts fueled investor optimism.