ECB warns AI bubble could trigger global financial shock

The European Central Bank warns that the current AI investment boom could lead to a major market correction with global consequences. According to ECB economists, US stock valuations tied to AI are near historic peaks, driven by massive data center spending and expectations of transformative productivity gains. The bank argues that past technological revolutions show a pattern of boom and bust, suggesting today’s AI surge may mirror the dot com bubble. European households, pension funds and insurers hold around €440 billion in US tech equities, meaning an AI crash would directly affect Europe even if citizens are unaware of their exposure. The ECB notes that AI enthusiasm is less dominant in Europe’s markets, but historically strong correlations with Wall Street mean any US correction would spill over. A bubble burst could damage not only stock markets but also Europe’s broader non financial economy, leaving policymakers with few tools to contain instability. The researchers conclude that investors should prepare for a potential downturn as overconfidence in AI valuations eventually corrects itself.

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