AI Bubble Named Biggest Tail Risk for Global Markets in BofA's August Fund Manager Survey
Key Takeaways
- •Bank of America's August Global Fund Manager Survey identified a potential bubble in artificial intelligence assets as the biggest tail risk facing global markets.
- •The monthly survey questions a comparable panel of professional fund managers about asset allocation, growth and inflation outlooks, central bank policy expectations and perceived tail risks.
- •Earlier editions of the survey had cited inflation, geopolitical conflict and trade tensions as tail risks, with AI-related excess now heading the list.
- •A number-one tail-risk ranking reflects managers' judgment of the most significant market threat, not a forecast that such an event will occur.
- •The designation follows several years of heavy investment in AI infrastructure and AI-linked technology stocks across the corporate and financial sectors.

The AI bubble has been identified as the biggest tail risk facing global markets in Bank of America's Global Fund Manager Survey for August, with the monthly poll showing that professional money managers now rank concerns about a potential bubble in artificial intelligence-related assets at the top of their list of risks. In market terminology, a tail risk is a low-probability event that would carry severe consequences for asset prices if it occurred — an outcome that sits in the far "tail" of a probability distribution rather than in the central case.
Bank of America's Global Fund Manager Survey is one of the most closely watched gauges of institutional investor sentiment. Conducted every month among a panel of professional fund managers, the survey asks respondents about their asset allocation across equities, bonds and cash, their outlook for economic growth and inflation, their expectations for central bank policy, and which tail risks they consider the most significant for markets. Because the same questions are put to a comparable panel of managers each month, shifts in the responses — including which threat heads the tail-risk list — are followed as a reading on how institutional sentiment is changing over time.
Tail risks cited by respondents in previous editions of the survey have included inflation, geopolitical conflict and trade tensions. The August reading places AI-related excess at the top of that list. A number-one tail-risk ranking reflects what managers judge to be the most significant threat to markets, not a forecast that such an event will occur. The designation comes after several years of heavy investment in artificial intelligence infrastructure and AI-linked technology stocks, a trend that has been widely documented across the corporate and financial sectors.
Subsequent monthly editions of the survey will show whether AI-related excess keeps the top spot on the tail-risk list, and how the panel's allocation answers across equities, bonds and cash sit alongside that concern. The findings were reported by CNBC-TV18 Markets (source).