VIX vs High Yield Credit Spread
The VIX measures S&P 500 option-implied volatility; the high-yield OAS measures the extra yield investors demand to hold junk bonds over Treasuries. Both surge when markets are stressed.
VIXCLSBAMLH0A0HYM2- VIX
- HY OAS
These two indicators come from different markets but track the same underlying signal: how much risk are investors pricing right now? VIX captures the cost of insuring against equity drawdowns over the next month. High-yield option-adjusted spread (OAS) captures the cost of insuring against corporate default over years.
In calm markets both sit near long-run averages: VIX around 15–18, HY OAS around 350–450 basis points. In stress events both spike. The 2008 crisis: VIX hit 80, HY OAS hit 2,000 bps. The COVID crash: VIX hit 82, HY OAS hit 1,100 bps within weeks. They tend to peak within days of each other.
Divergences are informative. If VIX is elevated but HY spreads aren't widening, the stress is likely equity-specific (a sector rotation, a positioning unwind) rather than a credit-cycle inflection. If HY spreads are widening but VIX stays calm, credit markets are pricing risk that equity hasn't recognized yet — historically a late-cycle warning sign.
The 2022 rate-hike selloff showed an unusual pattern: VIX rose moderately while HY spreads widened more than equity vol implied. The interpretation was that the selloff was orderly (no forced liquidation) but credit-cycle concerns were building — borne out by elevated default rates in 2023.
Indexing both shows when the two markets agree and when they diverge.
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