European insurance shares tumble following US broker selloff over AI concerns
European insurance shares fell on Tuesday after a selloff in U.S. brokers. Concerns grow that new AI tools will accelerate disruption across the sector.
Insights:
European insurance stocks fell on Tuesday following a selloff in US 
US insurance brokers, which was triggered by Insurify releasing an AI-powered insurance comparison tool built on ChatGPT. The move drove sharp share declines in major brokers and pulled down insurance sector indices, indicating investor concern that AI tools could accelerate disruption to broker and insurer economics.
US insurance brokers, which was triggered by Insurify releasing an AI-powered insurance comparison tool built on ChatGPT. The move drove sharp share declines in major brokers and pulled down insurance sector indices, indicating investor concern that AI tools could accelerate disruption to broker and insurer economics.The market reaction was most pronounced among top brokers, where Willis Towers Watson Public Limited Company , Aon plc , and Arthur J. Gallagher & Co. slumped between 9% and 12% on Monday. This downward pressure contributed to a 3.9% decline in the S&P 500 Insurance Index, marking its largest single-day drop since October 2025. The volatility immediately prompted a rapid market reassessment of sector disruption risk across the Atlantic.
