U.S. stocks moved higher on Wednesday (February 18, 2026) as Nvidia led gains across major indexes following a new artificial-intelligence partnership announcement. The S&P 500 rose 0.6%, approaching its recent record, while the Dow Jones Industrial Average gained 129 points and the Nasdaq increased 0.8%. Nvidia climbed 1.6% after Meta Platforms confirmed a long-term plan to purchase millions of chips for expanding AI data centers. Analysts described the agreement as a catalyst that strengthened optimism about the technology sector and reinforced expectations of continued AI investment. Strong corporate earnings from major technology and semiconductor firms further supported the market rally.

Investors, however, remain cautious about the long-term impact of heavy AI spending and the possibility of market volatility. Some analysts warned that industries such as software and logistics could face disruption if AI reduces costs for complex tasks. At the same time, encouraging economic reports boosted confidence that the U.S. economy remains resilient. Industrial production, durable-goods orders, and housing construction all exceeded expectations. Federal Reserve officials signaled that interest-rate cuts may be delayed until inflation shows clearer improvement, though many investors still anticipate reductions later in the year. Global markets also reacted positively, with gains in London and Tokyo following inflation updates and political developments. Overall, the day’s trading reflected strong enthusiasm for AI-driven growth balanced by uncertainty about future interest-rate policy and the broader economic outlook.