Barclays reports AI-driven dispersion is fueling Europe's outperformance over U.S. equity markets. Analyst Emmanuel Cau notes extreme AI-led momentum reversals create a growing divide between sectors vulnerable to AI disruption and those insulated from technological change.

Europe benefits from what Barclays calls the "HALO effect" (Heavy Assets, Low Obsolescence), with EU and U.K. markets hitting new highs while the S&P 500 struggles. Investors trim exposure to U.S. tech amid concerns about business models, AI job risks, and software-related private credit exposure.

The bank highlights valuation convergence as the key driver of this rotation, raising whether earnings will eventually validate these moves. Even strong Nvidia results failed to reverse the trend, suggesting structural changes in how investors value different business models in the AI era.