Senator Elizabeth Warren, Ranking Member of the U.S. Senate Committee on Banking, Housing and Urban Affairs, published letters urging the Financial Stability Oversight Council (FSOC) to design and conduct a stress test focused on nonbank financial institutions’ private credit exposures and seeking information from credit rating agencies following reports of inflated ratings for private credit products. The letters point to a USD 1.7 trillion private credit market and cite a 145% increase in the volume of bank loans to private debt funds. Warren referenced FSOC’s 2024 annual report discussion of potential risks in private credit, including opacity, credit risk, liquidity risk, and growing interconnectedness with banks, insurance companies, and other institutions, and urged FSOC to work with the Office of Financial Research to run an exploratory stress test aligned with exercises conducted by international regulators. Separate letters asked S&P Global Ratings, Moody’s Investors Service, Fitch Ratings, Morningstar DBRS, A.M. Best, Demotech, KBRA, and Egan-Jones to explain business practices, management of conflicts of interest, and rating methodologies for private credit products.