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The Daily Horizon

What does a bond rating of AAA mean?

Author

Matthew Underwood

Published Jan 20, 2026

What Is AAA? AAA is the highest possible rating that may be assigned to an issuer’s bonds by any of the major credit rating agencies. AAA-rated bonds have a high degree of creditworthiness because their issuers are easily able to meet financial commitments and have the lowest risk of default.

What bonds are AAA rated?

Investment grade bonds contain “AAA” to “BBB-“ ratings from Standard and Poor’s, and “Aaa” to “Baa3” ratings from Moody’s. Investment grade bonds usually see bond yields increase as ratings decrease. U.S. Treasury bonds are the most common AAA rated bond securities.

Are AAA bonds high risk?

An investment-grade rating signals that a corporate or municipal bond has a relatively low risk of default. Standard and Poor’s awards a “AAA” rating to companies it deems least likely to default. Moody’s awards an “Aaa” rating to companies it considers to be the least likely to default.

What is a good municipal bond rating?

“Aaa” – Issuers or issues rated Aaa demonstrate the strongest creditworthiness relative to other U.S. municipal or tax-exempt issuers or issues. “Aa” – Issuers or issues rated Aa demonstrate very strong creditworthiness relative to other U.S. municipal or tax-exempt issuers or issues.

Is a BBB bond rating good?

Bonds with a rating of BBB- (on the Standard & Poor’s and Fitch scale) or Baa3 (on Moody’s) or better are considered “investment-grade.” Bonds with lower ratings are considered “speculative” and often referred to as “high-yield” or “junk” bonds.

What does it mean when a bond has a relatively high credit rating?

A bond rating is a grade given to a bond by a rating service that indicates its credit quality. Generally, a “AAA” high-grade rated bond offers more security and lower profit potential (lower yield) than a “B-” rated speculative bond.

Are there any AAA rated bonds in the US?

This may be good news for investors, since the number of AAA rated issuers is small and shrinking. The three main rating agencies of Standard & Poor’s, Moody’s and Fitch Ratings use very similar letter scales, and the ratings of a bond issuer will be the same or very similar from each.

Which is the highest rating for municipal bonds?

AAA: Denotes the highest rating. This rating is given to those with the lowest default risk relative to all other issuers or obligations in the same country. AA: Denotes expectations of very low default risk relative to other issuers or obligations in the same country.

What’s the difference between a AAA and a AAA rating?

The credit agency letter ratings of bond issuers allow investors to quickly compare the safety of different bond investment choices. As the top two possible ratings, there will be little difference in either safety or yield between bonds with AA and AAA ratings.

What kind of bond rating does a Triple A have?

Triple-A bonds, or AAA bonds, are those considered the absolute safest by bond rating agencies (Fitch, Moody’s and Standard & Poor’s), while grades can go as low as D. By granting AAA rating, the bond rating agencies are signaling that they think default is all but unthinkable except in the most remote of circumstances.