Moody's Demands Stricter Oversight of Private Credit Ratings

Moody's Ratings has urged the National Association of Insurance Commissioners to tighten its treatment of private credit ratings used by insurers. The rating agency argues that the current system allows borrowers to shop around for the most flattering grade, effectively inflating the capital framework for insurers.

US life insurers have invested roughly $807 billion in private credit, accounting for about 20% of their $4 trillion total fixed-income portfolio. For some individual insurers, private credit holdings may represent up to one-third of their cash and invested assets.

The NAIC has already begun implementing new transparency requirements, including mandating that insurers submit private rating letter rationale reports within 90 days of any updates to those ratings. The NAIC also restructured its Valuation of Securities Task Force in 2026 into four separate groups designed to sharpen oversight of private credit ratings specifically.

Moody's intervention is partly self-interested, as the agency competes with smaller, specialized firms that have gained market share in private credit. For insurers, stricter NAIC treatment could mean higher capital charges on certain private credit holdings if ratings get downgraded under the new challenge process.