The ratings analysis focuses on measuring quantifiable portfolio risk factors, including interest-rate risk, yield curve risk, credit risk, liquidity risk, option risk, and concentration risk.

• 该评级分析集中评价可进行量化的组合的风险因素，包括利率风险、收益率曲线风险、信用风险、流动性风险、转换风险和集中风险。