AM Best Affirms Credit Ratings of Mutua de Riesgo Maritimo, Sociedad de Seguros a Prima Fija
AM Best has affirmed the Financial Strength Rating of B++ (Good) and the Long-Term Issuer Credit Rating of “bbb” (Good) of Mutua de Riesgo Maritimo, Sociedad de Seguros a Prima Fija (Murimar) (
The Credit Ratings (ratings) reflect Murimar’s balance sheet strength, which AM Best assesses as strong, as well as its adequate operating performance, limited business profile and appropriate enterprise risk management (ERM).
The negative outlooks reflect concerns regarding the appropriateness of Murimar’s risk management capabilities, including capital management approach, in the context of significant business growth experienced over the past three years and prospective expansion plans.
Murimar’s risk-adjusted capitalisation, as measured by Best’s Capital Adequacy Ratio (BCAR), fell to the very strong level at year-end 2022 from the strongest level in the previous year, primarily driven by higher underwriting risk as a result of significant growth in the mutual’s business profile. The higher capital requirements were only offset partly by higher retained earnings achieved through improved underwriting performance. Murimar’s balance sheet strength also factors in its small capital base, which can give rise to volatility in risk-adjusted capitalisation.
AM Best considers Murimar’s operating performance to be adequate. In 2022, the mutual achieved record profits after-tax of
Murimar is a niche insurer focused on marine hull and cargo insurance for small- to medium-sized vessels in
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 specialising in the insurance industry. Headquartered in
Copyright © 2023 by A.M. Best Rating Services, Inc. and/or its affiliates. ALL RIGHTS RESERVED.
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Source: AM Best


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