LONDON–(BUSINESS WIRE)–A.M. Best has upgraded the Financial Strength Rating to A (Excellent) from A- (Excellent) and the Long-Term Issuer Credit Rating to “a” from “a-” of Nacional de Reaseguros, S.A. (Nacional) (Spain). The outlook of these Credit Ratings (ratings) has been revised to stable from positive. The upgraded ratings reflect Nacional’s excellent risk-adjusted capitalisation, strong operating performance and well-established business profile as a leading reinsurer in Spain. The rati
