About This Indicator
The ICE BofA US High Yield Index Option-Adjusted Spread (BAMLH0A0HYM2) measures the yield premium investors demand for holding below-investment-grade (junk) corporate bonds over comparable U.S. Treasuries. The index includes USD-denominated corporate debt rated BB or lower (averaged across Moody's, S&P, and Fitch), with at least one year to maturity and $100M minimum outstanding. The OAS is calculated as the spread between a market-cap-weighted index of constituent bond OAS values and the spot Treasury curve.
Why This Matters
High yield spreads are one of the cleanest real-time signals of credit market stress and broader risk appetite. Because junk-rated borrowers are most sensitive to economic conditions, spread movements lead changes in default expectations, GDP growth, and equity risk premia. The series is a core component of nearly every institutional risk-regime model.
Trading Implications
Treat the trend in HY spreads as a regime overlay on equity positioning. Sustained widening above 4.5% signals risk-off, favoring hedging, quality, and defensive sectors. Tightening or compressed levels under 3.5% signal risk-on, with pullbacks buyable and momentum holding. Sharp single-day moves matter less than 5 to 10 day directional shifts. When equity indices rally but HY spreads widen, fade the rally.
Data Details
- Source: ICE Data Indices, LLC via FRED
- Frequency: Daily, Not Seasonally Adjusted
- Units: Percent
- History: Since 1996-12-31