Credit Rating

An agency's assessment of an issuer's likelihood of default.

What is Credit Rating?

Moody's, S&P, and Fitch grade issuers on a scale from AAA down. BBB-/Baa3 and above is investment grade; below that is high yield, or junk. Ratings drive borrowing costs and which bonds institutions are permitted to hold.

Credit Rating: a worked example

A downgrade from BBB- to BB+ forces some institutional holders to sell regardless of price.

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