Intel Stock Slides as Nvidia Pauses 18A Testing; Nike Jumps on Tim Cook Buy and Dynavax Soars on Sanofi Deal
U.S. stocks were largely flat in thin, holiday-shortened trading on Wednesday, December 24, 2025, with investors watching whether the market can extend a year-end “Santa Claus rally” even as headlines moved individual names sharply. The S&P 500 hovered near its all-time highs after a record close the prior session, while standout moves centered on three widely followed companies: Intel, Nike, and Dynavax Technologies. Reuters Intel’s shares fell after a report said Nvidia halted a test of Intel’s next-generation 18A manufacturing process, a development that reignited investor concerns about Intel’s effort to become a major contract chipmaker. Nike climbed after Apple