Bank of England Considers Incorporating AI Risks into Next System-Wide Stress Test
nashnova research
The Bank of England is discussing whether to make AI-driven financial turmoil a core scenario in its next system-wide stress test — a sign that AI risk is graduating from industry chatter to central-bank-level systemic oversight.
What exactly is this stress test?
The test in question is the SWES — the System-Wide Exploratory Scenario, a stress test that gauges the entire UK financial system's resilience to a hypothetical shock, not just one bank or insurer in isolation.
This means → if AI is chosen, it would no longer be treated as an internal risk-management item for individual firms. It would be examined as a potential shock to the whole system.
The BoE's first-ever SWES — focused on private-market risk — is still wrapping up and is expected to finish next year. AI is one candidate theme for the next round, but no final decision has been made.
What specifically worries regulators about AI?
Valuation bubble burst: a sudden collapse in AI-related asset prices could trigger cascading economic damage.
Trading herd behaviour: AI trading agents — algorithms that buy and sell autonomously — may converge on the same decisions under stress, amplifying volatility in a collective stampede.
Cybersecurity breach: next-generation AI models could expose gaps in corporate defences, creating systemic cyber risk.
In plain terms = the worry spans three layers — inflated prices, machines crowding the same exit, and hackers wielding AI as a battering ram.
What did the BoE governor say?
Governor Andrew Bailey put it bluntly: "Everyone is pricing in that they are a winner."
His point: markets are pricing AI assets as though future earnings are a certainty — the cash flows may indeed be positive, but the market may be overstating them.
Bailey also disclosed that since this spring, AI has become "a very significant issue" for the BoE on the cybersecurity front.
Why single out AI for a dedicated test now?
The current private-market SWES already includes AI valuation damage as part of its hypothetical scenario, but at the time the scope was narrow — AI was just one factor among many.
This reflects how fast AI has penetrated the financial system — evolving from a back-office tool into a trading decision-maker, a valuation driver, and even an attack vector. The regulatory lens had to widen to match.
Whether the BoE ultimately selects AI as the next SWES core scenario will be a key signal of how major central banks worldwide plan to confront AI-related financial risk systematically.
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