OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has revised the outlooks to positive from stable and affirmed the Financial Strength Rating (FSR) of A- (Excellent) and the Long-Term Issuer Credit Ratings (Long-Term ICR) of “a-” for Optimum Re Insurance Company (Dallas, TX) and Optimum Reassurance Inc. (Montreal, QC) (collectively referred to as Optimum Re). The ratings reflect Optimum Re’s balance sheet strength, which A.M. Best categorizes as very strong, as well as its adequate operating performanc