Standard and Poor’s Rating 标准普尔评级
Classification of stocks and bonds according to risk issued by Standard & Poor’s Corporation.S&P’s top four grades,called investment grade AAA,AA,A,and BBB,indicate a minimal risk that a corporate or municipal bond issue will default in its timely payment of interest and principal.Bonds or stocks rated BB or below by Standard & Poor’s are considered speculative,and fiduciaries are not allowed to invest in them.Another form is Standard & Poor’s Rating.