https://www.live-feeds.com/feed/mark-zuckerberg-loses-9-billion-in-a-day-amid-ai-overspending-fearsContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/mark-zuckerberg-loses-9-billion-in-a-day-amid-ai-overspending-fearshttps://www.live-feeds.com/feed/mark-zuckerberg-loses-9-billion-in-a-day-amid-ai-overspending-fears#u90894Wed, 30 Sep 2026 12:26:36 +0000Meta Platforms shares fell roughly 4 percent, erasing nearly $9 billion from CEO Mark Zuckerberg's estimated net worth and knocking him down two places on global wealth rankings. The stock reversal followed a warning from Goldman Sachs that soaring artificial intelligence spending could cost hyperscalers billions. The market reaction highlights growing investor anxiety over massive technology sector expenditures tied to artificial intelligence development, despite recent consumer adoption milestones achieved by Meta products like the Muse personal AI agent.Why it mattersThe sharp drop rev