High Yield Spread

The high yield spread is the extra interest rate that lower-rated corporate bonds pay over safer government bonds of the same maturity.

Why it matters

This spread tends to widen, meaning junk-rated borrowers suddenly look relatively more expensive to lend to, when investors expect more corporate defaults or a slowing economy, which makes it a widely watched early-warning signal.

How CORVIX uses it

High yield spread widening is one of the inputs behind CORVIX's correction risk estimate, alongside other measures of market stress.