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What is HY OAS?
The High-Yield Option-Adjusted Spread (HY OAS) is the average extra yield investors demand to hold US high-yield (BB and below) corporate bonds versus comparable Treasuries, after adjusting for embedded options like call features. It is the most-watched cyclical credit indicator. Sub-300bp signals risk-on; 500-700bp is neutral cycle; 800bp+ is recession pricing; 1000bp+ is crisis. The pace of change matters more than the level - sudden widening usually leads equity drawdowns.
- <300bp
- Risk-on. Tight cycle conditions.
- 500-700bp
- Neutral. Normal cyclical range.
- 800bp+
- Recession pricing.
- 1000bp+
- Crisis (2008, 2020 COVID, 2022 lows).
What HY OAS measures
- High-yield universe - BB, B, CCC-rated US corporate bonds
- Spread - yield over comparable-maturity Treasury
- Option-adjusted - strips out the value of call/put features so the spread reflects pure credit risk
How to read
Level matters: sub-300bp = expensive credit; 1000bp+ = crisis pricing.
Pace matters more: a 50bp widening in a week is a stress signal regardless of starting level.
Direction vs equities matters most: when HY OAS widens but equities rally, distrust the rally. Credit usually wins these disagreements.
Where to read it
ICE BofA US High Yield OAS index (FRED ticker: BAMLH0A0HYM2) is the standard public reference.
Frequently asked questions
What is a normal level for HY OAS?
Historically the ICE BofA US High Yield OAS has averaged around 500 basis points across cycles. Below 300bp reflects tight, risk-on credit conditions; 500-700bp is a neutral cyclical range; sustained readings above 800bp indicate recession pricing.
How does HY OAS differ from investment-grade OAS?
HY OAS covers BB, B, and CCC-rated corporate bonds and is much more volatile and cyclical than IG OAS (which covers AAA-BBB). HY moves earlier and further in stress events, making it the preferred cyclical credit gauge. IG OAS is used more as a funding-cost and financial-conditions input.
Why does HY OAS widening lead equity drawdowns?
Credit investors have first claim on cash flows and price default risk directly. When HY spreads widen materially, it signals that lenders are re-pricing corporate solvency risk before equity holders do. Historically, sharp HY OAS widening (50bp+ per week) has preceded S&P 500 drawdowns by days to weeks.
Where can I track HY OAS in real time?
The ICE BofA US High Yield Master II Option-Adjusted Spread (FRED series BAMLH0A0HYM2) is the standard public reference and updates daily. Market Ontology's credit spread dashboard tracks it alongside IG OAS, CDX HY, and equity risk metrics for cross-asset context.