All three major US indices—the Dow Jones, S&P 500, and Nasdaq Composite—hit fresh intraday highs as traders priced in an 85 percent probability of a Federal Reserve rate cut next week. The S&P 500 advanced 0.7 percent, the Dow 0.6 percent, and the Nasdaq 1.1 percent, led by gains in semiconductor and artificial-intelligence stocks. Analysts cited falling Treasury yields and strong corporate earnings as catalysts. Market participants said expectations for easier monetary policy reinforced optimism that the Fed’s tightening cycle may have concluded, boosting investor sentiment across equity sectors.