Big Tech Stocks Today (Dec. 17, 2025): Magnificent Seven Slide on AI Infrastructure Jitters as Amazon–OpenAI Talks and Fed Rate Outlook Take Center Stage
Big Tech stocks fell midday Wednesday, with Nvidia down 3.6% and Alphabet off 2.4%, after Oracle’s $10 billion Michigan data center project for OpenAI lost key funding. Amazon shares edged higher on reports of a potential $10 billion OpenAI investment. Semiconductor and AI-linked stocks led declines, with the VanEck Semiconductor ETF down 3%.