Nvidia, Cerebras lead U.S. stock movers as AI chip demand lifts tech shares

Nvidia (NVDA) hit a record $5.7 trillion market value on May 14, 2026, rising more than 4% after Reuters reported the U.S. Commerce Department approved about 10 Chinese companies to buy its H200 AI chips. The gain came ahead of Nvidia’s earnings due the week of May 18, 2026. Cerebras Systems (CBRS) surged 68% in its Wall Street debut on May 14, closing with a market value of about $95 billion and briefly approaching the rare $100 billion first-day valuation threshold. Applied Materials (AMAT) rose as much as 4.5% after hours after reporting record fiscal second-quarter results and issuing guidance above Wall Street expectations, citing continued demand from data center and AI infrastructure spending. Apple (AAPL) also drew attention after Bloomberg reported OpenAI is considering legal action tied to a deteriorating AI partnership. Investors on May 15 will watch the New York Fed’s May manufacturing survey, April industrial production and capacity utilization.