Wall Street’s biggest lenders are running fresh internal stress checks on their loan books after a chain of high-profile credit blowups exposed the limits of risk controls and reignited fears that more bad debt is hiding inside bank balance sheets. The pressure intensified this month after the Financial Stability Board warned in a May 6 report that the rapid expansion of private credit and its deepening ties to traditional banks have created vulnerabilities that could amplify stress in a downturn.
The FSB report — the most authoritative primary-source assessment so far — estimated that banks across member jurisdictions hold roughly $220 billion in drawn and undrawn credit lines extended directly to private credit funds, with commercial estimates running as high as $500 billion. Private credit assets themselves now total between $1.5 trillion and $2 trillion, the FSB said, and have not yet been tested by a prolonged economic downturn. Borrowers in the sector typically carry lower credit quality and higher leverage than companies that tap public markets, while payment-in-kind structures — where struggling firms defer cash interest payments — have climbed sharply.
The warning landed against a backdrop of mounting real-world losses already rippling through the financial system. HSBC Holdings Plc disclosed first-quarter expected credit losses of $1.3 billion on May 5, roughly $400 million higher than a year earlier and approximately 9% above analyst consensus estimates. The bank tied a significant portion of the charge to fraud-related exposure connected to a UK financial sponsor. Pam Kaur, HSBC’s Chief Financial Officer, told CNBC the bank remains adequately reserved based on its current outlook, though the disclosure added to mounting investor concern surrounding hidden credit deterioration inside leveraged lending markets.
The losses follow several major lending failures that have already shaken segments of Wall Street. The collapse of subprime auto lender Tricolor Holdings and auto-parts supplier First Brands Group left banks and investors facing more than $1 billion in combined losses while triggering federal investigations into approximately $2.3 billion in missing funds tied to financing arrangements and questionable receivables.
The fallout quickly spread through regional banks and prime brokerage units. Zions Bancorporation and Western Alliance Bancorporation disclosed fraud-related losses tied to commercial lending exposures. UBS Group AG booked more than $500 million in exposure connected to First Brands, while Jefferies Financial Group revealed roughly $715 million in questionable receivables through its Leucadia Asset Management division.
Concerns intensified again in February when the implosion of London-based mortgage provider Market Financial Solutions triggered a sharp selloff in shares of Barclays Plc, Santander SA, and Jefferies in a single trading session. The episode revived comments made by JPMorgan Chase & Co. Chief Executive Jamie Dimon, who warned during the bank’s October earnings call that financial markets often discover “cockroaches” only after the first hidden problem surfaces.
The growing strain is now beginning to affect lending conditions across the broader economy. Banks have started repricing facilities extended to non-bank lenders, while private credit funds — formally known as business development companies — are facing higher borrowing costs even as yields on direct loans compress.
That shift is already altering the competitive balance between traditional banks and private lenders. According to data compiled by Bloomberg, private credit lending volumes fell 14% in the first quarter, while traditional bank lending to companies rose 12.7%, the fastest growth pace since 2022.
For small and middle-market borrowers — particularly in sectors such as software, healthcare, and business services where private credit concentration remains highest — the tightening environment is translating into stricter lending terms, slower deal activity, and rising borrowing costs that could eventually filter into payrolls, investment activity, and consumer prices.
Major U.S. banks have also begun disclosing the scale of their exposure to private credit markets. JPMorgan Chase reported approximately $50 billion in private credit exposure. Citigroup Inc. disclosed roughly $118 billion in loans to non-bank financial institutions, including approximately $22 billion tied directly to private credit. Wells Fargo & Co. reported $36.2 billion in corporate debt finance exposure concentrated heavily in business services, software, and healthcare lending.
Meanwhile, Moody’s Ratings estimated last year that total U.S. bank exposure to private credit lenders was approaching $300 billion, underscoring the growing interconnectedness between regulated banks and the rapidly expanding private lending sector.
Industry data increasingly suggest the deterioration may be deeper than headline default numbers imply. Lincoln International, which conducts more than 6,500 quarterly valuations of private companies, reported that covenant defaults in direct lending markets rose to 3.5%, up from 2.2% in 2024. The firm also found that distressed payment-in-kind structures — where borrowers can no longer cover cash interest obligations — now account for more than half of all PIK arrangements, up sharply from roughly one-third previously.
Researchers tracking broader credit markets argue the commonly cited default rate of under 2% significantly understates the real picture. When selective defaults and out-of-court restructurings are included, analysts estimate the effective stress rate may already be approaching 5%.
Regulators are increasingly calling for stronger transparency. While Securities and Exchange Commission Chairman Paul Atkins has publicly downplayed systemic risks from non-bank lending, the Financial Stability Board urged regulators to close data gaps, harmonize reporting standards, and deepen oversight of bank-fund interconnections.
Several major banks have also quietly begun reducing the internal collateral values assigned to private credit fund assets, according to people familiar with the matter cited by Reuters. The move suggests some bank risk officers no longer fully trust valuation marks placed on underlying private loans.
For now, executives at the nation’s largest banks continue insisting that diversified portfolios and disciplined underwriting standards will absorb the losses.
The unanswered question is how many more cockroaches are still in the walls.
JBizNews Desk
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