Find Maryland Heights Missouri libraries, such as state, town, city, public, private, college and university library branches. Libraries provide information on applications, borrowing books, ebooks, library programs, online databases and research. Maryland Heights Library. Find Maryland Heights Missouri libraries, such as state, town, city, public, private, college and university library branches. Libraries provide information on applications, borrowing books, ebooks, library programs, online databases and research.
By David Ashworth | Mar 12, 2015 10:09 am EDT. Investment-grade bonds are fixed-income issuances with a rating of BBB and above as provided by credit ratings agency S&P (Standard & Poorâs). The agency uses modifiers + and â to show relative standing within the major rating categories.
A similar investment grade bond with a duration of 14.5 (30-year maturity, 4.5 percent coupon) might experience a loss in value of 26 percent1. The higher level of loss for the longer-term bond happens because its duration number is higher, making it react more dramatically to interest rate changes.