Provided by Business Wire AM Best Revises Outlooks to Negative for Reunion Re Compañia de Reaseguros S.A. AM Best has affirmed the Financial Strength Rating of B++ (Good) and the Long-Term Issuer Credit Rating of âbbbâ of Reunion Re Compañia de Reaseguros S.A. (Reunion Re) (Argentina). The outlooks of these Credit Ratings (ratings) have been revised to negative from stable. The ratings reflect Reunion Reâs balance sheet strength, which AM Best assesses as very strong, as well as its adequate operating performance, neutral business profile and appropriate enterprise risk management. The revision of the outlooks to negative from stable reflects pressure on Reunion Reâs balance sheet driven by a more challenging macroeconomic environment in Argentina and volatility in reinsurance recoverables.