Big Tech Stocks Today: Nvidia, Apple, Microsoft, Amazon, Alphabet, Meta and Tesla — The AI Rally Meets a 2026 Reality Check (Dec. 20, 2025)
Global data-center dealmaking reached a record $61 billion in 2025, fueled by AI demand, according to S&P Global. Investors are warning of concentration and valuation risks, with AustralianSuper planning to cut global equities exposure. Nvidia shares closed at $180.99 after analysts raised price targets, but U.S.–China tech tensions persist over chip access.