
AI Stock Frenzy: Nvidia’s $100B OpenAI Bet and Major Tech AI Moves Send Shares Surging (Sept 24–25, 2025)
Market Snapshot (Sep 24–25, 2025) US and global indices treaded water after the blistering tech rally. On Sept. 24 the S&P 500 and Nasdaq slipped about 0.3–0.5% investopedia.com, as profit-taking hit “Magnificent 7”