A.M. Best has affirmed the issuer credit ratings ("ICR") of "a-" of Everest Re Group, Ltd ( RE ). The company's debt ratings were also affirmed along with the ratings of its subsidiaries. All the ratings carry a Stable outlook. This rating affirmation indicates Everest Re's strong balance sheet profile and better-than-average underwriting performance, along with its ability to perform favorably amidst tough market conditions, a seasoned management team and huge market share in the insurance and reinsurance industry. The company has adequate capital flexibility, which shields from market uncertainties. Moreover, its combined ratio, signifying an insurer's profitability, remained below the breakeven levels over the past five years. The company also has a liquid investment portfolio that has a short duration maturity. It has kept its investment portfolio conservative by investing just 10% of the total investment money in equities.