1. Investment Grade vs. High Yield
Investment Grade (IG)
Rating: BBB- or higher (S&P/Fitch)
Default Risk: Low (historically around 2% over 10 years)
Typical Spread: 100-200bps over Treasuries
Examples: Apple, Microsoft, JPMorgan
Investors: Pension funds, insurance companies
High Yield (HY, "Junk")
Rating: BB+ or lower
Default Risk: Much higher (historically roughly 20–30% over 10 years, higher for the lowest ratings)
Typical Spread: 400-700bps over Treasuries
Examples: Energy companies, retailers, leveraged buyouts
Investors: Specialist bond funds, insurers and hedge funds
2. Credit Spread Dynamics
Spreads narrow in economic expansions as default risk falls, and widen in recessions as bankruptcies rise. So the level of spreads tells you something about how worried lenders are. The ranges below are rough guides from past cycles, not rules.
Historical Spread Levels
- • BBB spreads 100-150bps: Normal, healthy credit market
- • BBB spreads 200-250bps: Caution, stress emerging
- • BBB spreads 300+bps: Serious stress, as in 2008 and briefly in 2020
- • HY spreads 400-500bps: Normal
- • HY spreads 700-1000bps: Markets pricing a sharp rise in defaults
- • HY spreads 1500+bps: Financial crisis (2008 hit 2100bps)
3. Credit as Recession Indicator
Some of the clearest past examples of spreads moving with, or ahead of, share prices:
- 2007: HY spreads started widening from record lows of about 250bps in June 2007; the S&P 500 peaked that October
- Dec 2018: HY spreads reached about 530bps as the S&P 500 fell almost 20%; the Fed paused its rate rises the next month
- March 2020: HY spreads reached about 1,100bps in the pandemic panic as the S&P 500 fell 34%
- Oct 2022: IG spreads reached about 160bps (mild stress) as the S&P 500 hit its low for the year, about 25% below its peak
A Useful, Imperfect Signal
Spreads have often widened in the run-up to recessions, but they have also widened sharply without one, as in 2015–16 when an oil price collapse hit energy borrowers. Read them alongside other indicators.
4. Fallen Angels & Rising Stars
Fallen Angels: IG bonds downgraded to HY (forces selling by IG-only funds).
Rising Stars: HY bonds upgraded to IG (forces buying by IG funds).
2020 example: Ford and Occidental Petroleum were cut to high yield, among the largest fallen angels on record. Both later regained investment-grade ratings as conditions recovered. A wave of fallen angels is a sign of broad stress.
How Professionals Read Spreads
- Tight spreads (IG < 150bps): Lenders see little default risk. Historically this has coincided with calm, growing economies, and with investors accepting thin compensation for risk.
- Widening spreads (IG 150-250bps): Often a transition phase. Lenders start demanding more compensation before the stress shows up in earnings or headlines.
- Wide spreads (IG > 250bps): A sign of real stress. In past episodes, money has tended to move towards government bonds and away from high yield.
- High yield above 700bps: Levels reached in 2008, 2015-16 and 2020. Each time, markets were pricing a meaningful rise in defaults.
Bottom Line
The pattern: Credit investors are paid to worry about defaults, so spreads often move before share prices do. When spreads widen well beyond their usual ranges, markets are pricing a real chance of rising defaults. That is why professionals watch spreads as a possible early warning, not just a bond-market statistic.
Related
Educational content only. It describes how markets have behaved in the past and is not investment advice.