Global Stock Market Today: AI-Led Tech Jitters Hit Asia, Europe Turns Cautious Before Central Banks, Micron Lifts U.S. Futures (Dec. 18, 2025)
Updated: 5:00 AM EST (10:00 GMT), Thursday, December 18, 2025 Global equities are starting December 18 on an uneasy footing, with investors reassessing the durability of the AI-fueled rally just as a dense run of central bank decisions and a closely watched U.S. inflation report approach. Overnight, a tech-heavy retreat in the U.S. reverberated across Asia, while early European trading stayed muted with rate decisions due from the Bank of England and the European Central Bank (among others). In U.S. premarket trading, Micron’s strong outlook is helping stabilize sentiment, but markets remain tightly focused on inflation data and policy signals