UFA's quarterly index tracking national default risk — and why sharp regional divergence means the national number tells only part of the story.
The UFA National Default Risk Index (NDRI) rose in the third quarter of 2026. It stands at 131, a 10‑point increase from the revised second‑quarter reading of 121. In practical terms, today’s economic climate implies that a newly originated mortgage carries a 31% higher probability of default than an equivalent loan made in the 1990s—an estimate derived solely from shifts in local and national economic fundamentals. That is the central finding of the latest analysis from University Financial Associates of Ann Arbor.
As Robert Frost expressed so memorably, when paths diverge, choices matter. UFA has been alerting readers to a growing divergence across housing and mortgage markets. Many housing markets continue to appreciate, while others have already experienced price declines of 15-20%.
“This divergence matters because mortgage defaults respond to house prices in a highly nonlinear fashion. Once prices fall below prior levels, the borrower's calculus changes dramatically. Economic stresses that might otherwise be manageable become much more likely to result in mortgage default when homeowners have little or no equity cushion,” said Dennis Capozza, Professor Emeritus of Finance at the University of Michigan and a founding principal of UFA. “With affordability so poor for recent vintages, stressors such as unemployment, divorce, or health issues can therefore have an outsized impact. This is not to suggest that a repeat of the Great Financial Crisis is imminent. It does mean, however, that lenders and investors should recognize that the environment for mortgage investment has become materially less favorable for some locations.”
The NDRI measures the default risk on newly originated prime and nonprime mortgages, holding borrower and loan characteristics constant. By isolating the economic environment, the index provides a clean read on how current and expected conditions influence mortgage performance. Today’s environment is materially less favorable than in prior years, and the index reflects that shift.
Because the NDRI is calibrated to historical default rates, investors can easily adjust internal models. A pool with an expected default rate of 1 percent under past conditions would, under today’s environment, be recalibrated to:
1% × (131/100) = 1.31% expected defaults.
Each quarter, UFA evaluates U.S. economic conditions and their implications for defaults, prepayments, recoveries, and loan values. The firm’s constant quality framework highlights the central role of macroeconomic stress: recessions erode both borrower resilience and collateral values, while monetary easing tends to mitigate those pressures. Founded in 1990 by two finance professors, UFA brings more than fifty years of combined experience in mathematical modeling and data analysis to the mortgage market.
UFA’s default and prepayment risk indices are now available for every ZIP code in the country. Research consistently shows that local economic variation accounts for half or more of loan losses. With ForeScore ZIP, lenders, investors, and regulators can incorporate these local dynamics directly into underwriting and portfolio management.
