OLDWICK, N.J.–(BUSINESS WIRE)– #insurance–AM Best has assigned a Financial Strength Rating of A++ (Superior) and a Long-Term Issuer Credit Rating of “aa+” (Superior) to Lasso Healthcare Insurance Company (Lasso) (Indianapolis, IN). The outlook assigned to these Credit Ratings (ratings) is stable. The ratings reflect Lasso’s balance sheet strength, which AM Best assesses as very strong, as well as its adequate operating performance, neutral business profile and very strong enterprise risk management (ERM)