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AM Best Affirms Credit Ratings of Operating Subsidiaries of MGIC Investment Corporation

OLDWICK, N.J.--(BUSINESS WIRE)--AM Best has affirmed the Financial Strength Rating of A (Excellent) and the Long-Term Issuer Credit Rating of “a” (Excellent) of the operating subsidiaries of MGIC Investment Corporation [NYSE: MTG]. The operating subsidiaries are Mortgage Guaranty Insurance Corporation, MGIC Indemnity Corporation, and MGIC Assurance Corporation (collectively referred to as MGIC). All companies are domiciled in Milwaukee, WI. The outlook of these Credit Ratings (ratings) is stable.

The ratings reflect MGIC’s balance sheet strength, which AM Best assesses as strongest, as well as its strong operating performance, limited business profile and appropriate enterprise risk management (ERM).

MGIC’s balance sheet strength assessment of strongest is supported by its risk-adjusted capitalization being at the strongest level in stressed and unstressed scenarios, as measured by Best’s Capital Adequacy Ratio (BCAR). The assessment of strongest is supported further by MGIC’s use of reinsurance and compliance with private mortgage insurer eligibility requirements.

MGIC’s operating performance is assessed as strong based on solid underwriting and earnings trends over the past five years. Underwriting results have been strong with very low loss ratios reflecting favorable credit performance of loans being insured. Underwriting gains were supplemented by investment income, which has favorably contributed to overall earnings over the past three years.

The business profile is assessed as limited because the company is focused on U.S. single family mortgage risk. A high degree of product risk is considered to be in the limited business profile assessment as the performance of the mortgage insurance industry is linked to the macroeconomic environment and the standards set by the government-sponsored enterprises: Fannie Mae and Freddie Mac. However, this risk is mitigated by the various reinsurance programs that MGIC utilizes. As one of the six private mortgage insurers in the United States, MGIC faces strong competition from the other private mortgage insurers and governmental agencies (e.g., Federal Housing Administration and Veterans Affairs) providing mortgage insurance.

MGIC’s overall ERM assessment is appropriate, as the company employs a robust ERM framework and infrastructure. The ERM framework is commensurate with the size, nature and complexity of its mortgage insurance business, which AM Best considers to be aligned appropriately with its risk profile.

This press release relates to Credit Ratings that have been published on AM Best’s website. For all rating information relating to the release and pertinent disclosures, including details of the office responsible for issuing each of the individual ratings referenced in this release, please see AM Best’s Recent Rating Activity web page. For additional information regarding the use and limitations of Credit Rating opinions, please view Guide to Best's Credit Ratings. For information on the proper use of Best’s Credit Ratings, Best’s Performance Assessments, Best’s Preliminary Credit Assessments and AM Best press releases, please view Guide to Proper Use of Best’s Ratings & Assessments.

AM Best is a global credit rating agency, news publisher and data analytics provider specializing in the insurance industry. Headquartered in the United States, the company does business in over 100 countries with regional offices in London, Amsterdam, Dubai, Hong Kong, Singapore and Mexico City. For more information, visit www.ambest.com.

Copyright © 2025 by A.M. Best Rating Services, Inc. and/or its affiliates. ALL RIGHTS RESERVED.

Contacts

Matt Tuite
Director
+1 908 882 2403
matt.tuite@ambest.com

Wai Tang
Senior Director
+1 908 882 2388
wai.tang@ambest.com

Christopher Sharkey
Associate Director, Public Relations
+1 908 882 2310
christopher.sharkey@ambest.com

Al Slavin
Senior Public Relations Specialist
+1 908 882 2318
al.slavin@ambest.com

AM Best


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Contacts

Matt Tuite
Director
+1 908 882 2403
matt.tuite@ambest.com

Wai Tang
Senior Director
+1 908 882 2388
wai.tang@ambest.com

Christopher Sharkey
Associate Director, Public Relations
+1 908 882 2310
christopher.sharkey@ambest.com

Al Slavin
Senior Public Relations Specialist
+1 908 882 2318
al.slavin@ambest.com

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