...Favorable Business Profile: Arch Mortgage Insurance Company (AMIC), United Guaranty Residential Insurance Company (UGRIC) and Arch Mortgage Guaranty Company (AMGC)--collectively Arch MI--have a leading position in U.S. mortgage insurance (USMI), with a 15.7% share of the private mortgage insurance industry's new insurance written at YE 2025, down slightly from 16.2% at YE 2024. Arch Capital Group Ltd. (ACGL also has leading positions in government-sponsored enterprise (GSE) credit risk transfer, European significant risk transfer and Australian primary mortgage insurance. Arch MI's standalone Insurer Financial Strength (IFS) assessment of 'a' is one notch below its implied IFS of 'a+' because the company profile score (a- IFS credit factor score) has a strong impact on Fitch Ratings' overall view of Arch MI's credit profile. Ownership and Group Benefit: Fitch views ACGL as having two separate businesses: primary insurance and reinsurance and mortgage insurance. Fitch considers the two businesses...
