Today’s Market Recap: Microsoft’s AI Spending Sparks Concerns, 10% Plunge Weighs on U.S. Markets
TradingKey - On January 29, 2026, the S&P 500 Index ended lower by 9.02 points, or 0.13%, at 6,969.01. The Dow Jones Industrial Average rose 55.96 points, or 0.11%, to close at 49,071.56. The Nasdaq Composite fell 172.33 points, or 0.72%, to close at 23,685.12.