Milliman today announced the second quarter (Q2) 2020 results of the Milliman Mortgage Default Index (MMDI), which shows the latest monthly estimate of the lifetime default risk of U.S.-backed mortgages.
During Q2 2020, the economic component of default risk for government-sponsored enterprise (GSE) acquisitions (purchased and refinanced loans backed by Freddie Mac and Fannie Mae) defied expectations, decreasing for the first time since at least Q3 2019 as a result of home price growth and robust refinance volume. In Q2, approximately 70% of mortgage volume was refinance loans, which are considered lower risk relative to purchase loans. Because of this, and an increased demand for housing, overall default risk for GSE loans decreased, from 1.99% in Q1 2020 to 1.74% in Q2.
Low interest rates have driven homeowners to refinance in record numbers, with 2020 refinance volume exceeding $1 trillion and totaling more than the volume of 2018 and 2019 combined. That, coupled with home price growth, has resulted in an improvement in mortgage default risk in Q2, despite the economic stressors from the COVID-19 pandemic.
For Ginnie Mae acquisitions, the MMDI rate increased from 10.33% in Q1 2020 to 10.61% in Q2 2020, driven mainly by increased refinance volume. Many of these loans were originated through streamlined refinance programs, where a credit score is not provided. A credit score of 600 is conservatively assigned, which increases borrower default risk during heavy refinance periods
The models used in Milliman’s MMDI analysis rely on home prices to forecast default rates, and do not rely on unemployment rates, nor do they have specific adjustments for special legislative actions or programs such as the Coronavirus Aid, Relief, and Economic Security (CARES) Act.
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