Stock Market Today, April 30: Caterpillar's Jump After Earnings Helped Fuel Surge in Dow

Midday U.S. markets were mixed but modestly positive as industrial strength lifted the Dow while large-cap tech weighed on the Nasdaq and S&P. Caterpillar surged double digits after beating Q1 expectations, reporting 22% revenue growth and raising its full-year revenue outlook, which helped drive the Dow's outperformance. By contrast, Meta plunged roughly 9% and Microsoft fell about 5% after signaling much higher AI-related capex, highlighting investor concern about the profit impact of rising hardware and infrastructure spending. The S&P 500 and Nasdaq posted smaller gains, and the 10-year Treasury yield hovered around 4.40% following the Fed’s decision to hold rates. Investors are parsing a busy slate of big-cap earnings, with Apple’s report due after the close.