Standard & Poor’s: AAA, AA+, AA, AA–, A+, A, A–, BBB+, BBB, BBB–, BB+, BB, BB–, B+, B, B–, CCC+, CCC, CCC–, D
Moody’s: Aaa, Aa1, Aa2, Aa3, A1, A2, A3, Baa1, Baa2, Baa3, Ba1, Ba2, Ba3, B1, B2, B3, Caa1, Caa2, Caa3, Ca, C
Fitch: AAA, AA+, AA, AA–, A+, A, A–, BBB+, BBB, BBB–, BB+, BB, BB–, B+, B, B–, CCC, DDD, DD, D
A credit rating is not a recommendation to purchase a particular bond. Bonds with higher ratings typically have a lower yield. Bonds with lower ratings generally offer higher yields, but the risk that the issuer will default is greater. You should carefully weigh the risks of investing in these bonds.
In addition to credit risks, bonds are subject to interest rate and inflation risks, and they have different maturities. The principal value of bonds fluctuates with changes in market conditions. If sold prior to maturity, a bond may be worth more or less than its original value.