Bank of England Governor Warns AI Boom Could Spark Market Shocks

London's central bank chief says the surge of money pouring into artificial intelligence companies could set off shocks in financial markets, and he wants Britain ready for that possibility.

Bank of England Governor Andrew Bailey told the BBC in an interview published October 1 that the bank is tracking AI-related investment "very carefully," warning that a correction in asset prices is possible. The remarks come as AI chipmaker Nvidia sits at a $5.5tn (£4.14tn) market valuation, and as Alphabet, Meta, Microsoft and Amazon pour hundreds of billions of dollars into the technology, according to BBC News.

What exactly did Andrew Bailey say?

Asked directly whether an AI bubble could burst, Bailey told the BBC: "You could see some correction of asset prices at some point." He said the technology has "great potential to strengthen growth in our economies" but "also brings with it substantial risks and so we have to be on top of both of those."

Bailey's sharpest warning was about investor behavior. "Everybody is currently priced to be a winner," he said, "but you look back at the past, not everybody is a winner." He pointed to internet search as a cautionary example: "Google was not the first market leader in internet search. It was Netscape. Nobody can remember Netscape today. It doesn't exist. So not everybody always wins," Bailey said, according to the BBC interview.

Why is the Bank of England worried about AI spending right now?

The concern is about scale and concentration. Nvidia's $5.5tn valuation makes it the world's most valuable listed company, driven largely by investors betting on AI profits, the BBC reported. Tech giants Alphabet, Meta, Microsoft and Amazon are spending hundreds of billions of dollars building out AI infrastructure. On top of that, Anthropic and OpenAI are preparing to sell shares on the US stock market, moves that many expect to pull hundreds of billions more dollars into the sector, per the BBC.

Bailey said that level of investment is "natural because it's a major area of growth," and that rising valuations "reflects the fact that there are high expectations of what it can deliver." His worry is what happens to markets if some of those bets don't pay off. "We are prepared for the fact that there will be, I think, some shocks come along to markets and we have to deal with that," Bailey told the BBC. "We have to make sure the system is resilient."

Is the Bank of England alone in watching this closely?

No. Central banks on both sides of the Atlantic are weighing AI-driven market moves alongside their own policy decisions. In the United States, a top Federal Reserve official recently signaled the central bank is likely to hold interest rates steady at its October meeting, a sign the Fed is also moving carefully as it watches economic conditions, according to HTT News. Bailey's comments suggest the Bank of England is taking a similarly watchful stance on the financial system broadly, rather than reacting to AI valuations in isolation.

What other AI risks did Bailey flag?

Market shocks were not his only concern. Bailey told the BBC that AI has created "a much more powerful way of uncovering vulnerabilities" in computer systems, which could be used for cyber attacks. "It's revealing things that have been in bits of operating software that we've had, and all of us have had," he said. "In the wrong hands... it's a very powerful, potentially very powerful, weapon."

He also raised deepfakes, describing the quality of AI-generated fake images and video as "alarming," a comment captured in the BBC's video interview with Bailey.

What does this mean for people in the UK on Monday morning?

Nothing changes immediately for savers, mortgage holders or pension investors based on Bailey's remarks alone. He did not announce a new Bank of England policy, rate move or regulatory restriction tied to AI investment. What he did signal is that the central bank sees AI-linked asset prices as a watch item for financial stability, the same way it monitors housing, lending and currency markets. Anyone with money in pension funds or index funds that hold heavily AI-exposed stocks, such as those tied to Nvidia or the major tech firms the BBC named, is already exposed to whatever correction Bailey says is possible. The governor did not give a timeline for when such a correction might happen or how large it could be.

The Bank of England has not published a separate report or data release tied to these comments; the warning came in the context of a BBC interview with Bailey about AI's risks and benefits for the UK economy, conducted ahead of further Bank of England communications expected later in the year.