The Bank of England has warned that global stock markets are overvalued and likely to fall, as the world economy grapples with trade tensions, geopolitical instability and the growing risks of an artificial intelligence bubble.
Speaking on Wednesday, a deputy governor of the Bank said share prices around the world do not reflect the many risks facing the global economy, and that a significant correction could be on the way. The warning represents one of the starkest assessments yet from Threadneedle Street about the fragility of current market conditions.
AI at the Centre of Concerns
The Bank’s Financial Policy Committee has repeatedly flagged that equity valuations — particularly among technology firms focused on artificial intelligence — appear “overstretched on several measures”. Comparisons have been drawn to the dotcom boom of the late 1990s, when sky-high valuations in the technology sector eventually gave way to a dramatic and painful crash.
The Bank warned that growing concentration within major market indices makes them especially vulnerable to any shift in sentiment around AI. Crucially, it noted that AI infrastructure investment is increasingly being financed by rapidly rising corporate debt — a dynamic that could amplify losses across the broader financial system if valuations correct sharply.
Global Risks Piling Up
The Bank’s concerns extend well beyond AI. Heightened geopolitical tensions, fragmented trade relationships, and pressure on sovereign debt markets have all contributed to what the Bank described as a landscape where markets may not have “fully priced in possible adverse outcomes”.
The Bank also raised alarms about the potential erosion of confidence in major central banks, warning that a sudden shift in perceptions around the credibility of the US Federal Reserve could trigger a rapid repricing of dollar assets, including in government bond markets.
The Bank of England is not alone in its unease. Jamie Dimon, chief executive of JP Morgan Chase, has similarly warned of a heightened likelihood of a significant market correction, while the International Monetary Fund has cautioned that “markets appear complacent as the ground shifts”.
What It Means for UK Households
For households and businesses in the United Kingdom, a sharp market correction would not be a distant financial abstraction. The Bank warned it could have a direct knock-on effect on borrowing costs and economic confidence at a time when many are already feeling the strain of elevated living costs.
The Bank stressed it is not predicting an imminent crash, but that the risk of one has “increased materially” — and that complacency would be misplaced.
