Report: Bank of England Reviews London Investment Banks' Exposure to Asian Equities, Focusing on AI Stock Concentration and Leverage Risks

According to UK media reports, the Prudential Regulation Authority (PRA), a subsidiary of the Bank of England, is conducting a review of the prime brokerage operations of London-based investment banks. This initiative aims to assess whether banks' exposure to Asian equity markets is overly concentrated, especially in semiconductor and infrastructure companies propelled by the artificial intelligence (AI) boom.

The Financial Times reports that regulators have highlighted specific companies, including Taiwan's TSMC (2330-TW)(TSM-US) and South Korea's SK Hynix (SKHY-US), noting that institutional clients such as hedge funds are excessively concentrating their capital in these firms. Additionally, officials are concerned that some clients are amplifying investment risks through options-based leverage, with part of the funding sourced from retail investors in Asia. Such funding sources are considered unstable and could rapidly withdraw during periods of market stress, potentially triggering systemic risks.

Despite these risks, revenue from Asian markets is highly attractive to major banks like Goldman Sachs, JPMorgan, and Morgan Stanley, with expectations that this region's revenue could even surpass that of Europe this year. Currently, the Bank of England has requested firms to submit detailed data on their internal lending policies and financing provided to non-bank clients.

If the review concludes that risks are excessive, regulators may take a series of actions, including issuing formal warnings, sending letters to chief risk officers, or requiring banks to hold more liquid assets and increase capital buffers to enhance resilience against market sell-offs or the collapse of major clients.

As of now, the Bank of England has declined to comment on the report.