S&P 500, Nasdaq Climb as Oil, Treasury Yields Retreat; Intel Jumps 6%

U.S. stocks opened higher on Monday, September 21, 2026, lifted by falling oil prices and easing Treasury yields following a week in which most major indexes closed lower. The S&P 500 rose 0.66%, the Nasdaq gained 1.1%, and the Dow Jones Industrial Average added roughly 99 points, or 0.19%. U.S. crude dropped about 3.5% to around $96.76 a barrel, while Brent fell roughly 2.9% to about $100.85. The 10-year Treasury yield slipped to around 4.97%. AI-linked shares led gains ahead of a summit between President Trump and Chinese President Xi Jinping later this week. Intel surged more than 6%, Advanced Micro Devices jumped over 4%, and Dell rose more than 1%. The rebound follows the Fed's first rate hike in three years. Economist Ed Yardeni said elevated energy costs support further tightening, citing Middle East instability and attacks on Russian refining infrastructure.