U.S. stock markets rose on Wednesday (February 18, 2026), mainly because of strong performance from Nvidia and other technology companies. The S&P 500 increased by 0.6%, while the Dow Jones Industrial Average rose 129 points and the Nasdaq gained 0.8%. Nvidia’s shares climbed after Meta announced a long-term deal to buy millions of chips for artificial-intelligence data centers. Analysts said the news improved market confidence and showed strong demand for AI technology. Several companies also reported strong profits, helping support the positive mood in the market.

Even with the gains, investors remain concerned about the cost of AI projects and the possibility of sudden market changes. Experts say some industries may face pressure if AI tools can perform difficult work faster and cheaper. At the same time, new economic reports showed strong factory activity, rising orders for long-lasting goods, and increased home construction. These results suggested the U.S. economy remains stable. However, the Federal Reserve indicated it may wait longer before reducing interest rates until inflation improves further. Many investors still expect rate cuts later in the year. Overseas markets also rose, including London and Tokyo, after positive economic updates. Overall, the market showed a mix of excitement about AI growth and careful attention to economic policy and future risks.