Global stock markets fall sharply over AI bubble fears

<p>Drop in US, Asia and Europe follows warning from bank bosses that market correction could lie ahead</p><ul><li><p><a href="https://www.theguardian.com/business/live/2025/nov/05/china-ends-tariffs-us-imports-soy-bean-levies-ms-profits-cyber-attack-business-live">Business live – latest updates</a></p></li></ul><p>Global stock markets have fallen sharply amid concerns that a boom in valuations of artificial intelligence (AI) companies could be rapidly cooling.</p><p>Markets in the US, Asia and Europe have fallen after bank bosses warned a serious stock market correction could lie ahead, after a run of record stock market highs led <a href="https://www.theguardian.com/technology/2025/oct/01/leading-uk-tech-investor-warns-of-disconcerting-signs-of-ai-stock-bubble">some companies to appear overvalued</a>.</p> <a href="https://www.theguardian.com/business/2025/nov/05/global-stock-markets-fall-sharply-over-ai-bubble-fears">Continue reading...</a>