The National Association of Insurance Commissioners is examining insurers’ expanding exposure to residential mortgage loans, with potential additional scrutiny ahead.
Wisconsin Insurance Commissioner Nathan Houdek said the asset class has drawn attention as usage extends beyond its original regulatory scope.
Houdek, who chairs the NAIC’s financial condition committee, pointed to growing use of residential mortgage loan classifications through Delaware Statutory Trust structures.
These entities allow multiple investors to hold fractional beneficial interests in real estate or related assets under Delaware law.
He indicated the topic will be presented to the Invested Assets Task Force during the NAIC Spring National Meeting in San Diego from March 22 through March 25. Regulators will determine next steps after reviewing that analysis.
The issue centers on whether disclosure standards, capital treatment, and risk attributes remain aligned with regulatory intent as insurers increase indirect exposure.
According to Beinsure analysts, insurers have sought yield through structured real estate vehicles amid broader fixed-income pressure, raising questions about transparency and capital adequacy.
The NAIC in 2025 restructured its investment oversight framework, elevating the Invested Assets Task Force to the commissioner level.
Three working groups now support the task force: the Investment Analysis Working Group, the Securities Valuation Office and Structured Securities Working Group, and the Credit Rating Provider Working Group.
Parallel to asset review, the NAIC is building a Credit Rating Provider Due Diligence Framework. The initiative formalizes how regulators translate external credit ratings into NAIC designations.
As of Jan. 1, regulators hold authority to challenge and override designations tied to Nationally Recognized Statistical Rating Organization ratings for filing-exempt securities.
Houdek described the shift as moving away from automatic reliance on external ratings toward a more evaluative approach.
The NAIC engaged PwC as an external consultant to assist in designing the due diligence framework. An initial update is expected after the spring meeting, with a final draft targeted by year-end.
Regulators now balance expanded insurer investment strategies against capital standards and rating oversight. Mortgage loan exposure and structured vehicles sit squarely within that review as the NAIC recalibrates its investment supervision model.
