Credit Spread
A credit spread is the extra yield a bond pays over a comparable government bond. It compensates investors for default risk and lower liquidity; widening spreads signal rising worry about borrowers.
A company borrowing for ten years has to pay more than the government does for the same period. That difference — the credit spread — is the market’s price for the chance that the company does not pay. Spreads are watched closely: when they widen, investors are getting nervous about borrowers; when they narrow, confidence is high. This entry explains how spreads work, how ratings relate to them, and what changes in spreads say about the market.
- Category
- Bonds and Interest Rates
- Reading time
- 4 min
- Also called
- Yield spread, Spread over Treasuries, High-yield spread
- Updated
Credit spreads in plain words
Bonds with lower credit ratings are seen as riskier and are typically issued at higher yields than more creditworthy bonds.1 The gap between a corporate bond’s yield and a similar government bond’s yield is its credit spread.
Investment-grade bonds — rated BBB/Baa or above — are believed to have a lower default risk and tend to yield less.2 High-yield (junk) bonds, rated BB/Ba or below, must offer more. See Treasury Bills, Notes and Bonds.
How to read credit spreads, step by step
Find the bond’s yield
Its yield to maturity. See Yield to Maturity.
Find a comparable government yield
Same currency and similar maturity.
Subtract
Spread = corporate yield − government yield, often quoted in basis points (0.01%).
Compare with peers
Similar rating and sector.
Watch the trend
Widening spreads signal rising concern; narrowing spreads signal confidence.
Remember default
A default is a failure to pay principal or interest when due.3
Worked examples
Example 1 — Calculating a spread
CalculationA 10-year corporate bond yields 5.6%; the 10-year Treasury yields 4.1%.
| Credit spread | 5.6% − 4.1% = 1.5% (150 basis points) |
Investors demand 1.5 percentage points extra for lending to the company.
Example 2 — Ratings and spreads
RatingsTwo companies issue 5-year bonds: one rated A, one rated B.
| A-rated spread | Smaller |
| B-rated spread | Much larger |
Lower ratings mean higher yields to compensate for default risk.
Example 3 — Widening in a downturn
StressDuring a sell-off, high-yield spreads widen from 3.5% to 6.0% while Treasury yields fall.
| Treasuries | Prices rise |
| High-yield bonds | Prices fall |
Wider spreads signal fear about borrowers and often accompany stock-market stress. See Recession.
Investment grade vs. high yield
| Aspect | Investment grade | High yield |
|---|---|---|
| Ratings | BBB/Baa and above | BB/Ba and below |
| Default risk | Lower | Higher |
| Typical spread | Smaller | Larger |
| Behaviour in sell-offs | Moderate widening | Sharp widening |
Why traders watch spreads
Risk sentiment
Widening spreads often warn of stress. See Bear Market.
Bond selection
Is the extra yield worth the risk?
Recession signals
Spreads tend to widen ahead of and during downturns.
Equity context
Credit stress often spills into stocks.
Advantages and disadvantages
Advantages
- Shows the market’s price for default risk.
- A useful early-warning indicator of stress.
- Makes bonds with different ratings comparable.
Disadvantages
- Includes liquidity as well as default risk.
- Comparable government yields must match maturity and currency.
- Spreads can stay narrow until conditions change suddenly.
Going deeper
Read as far as you need. Each level builds on the one before it.
Basis points
Beginner
Spreads are often quoted in basis points: 100 basis points = 1 percentage point.
Two moving parts
Intermediate
A corporate bond’s yield can change because government yields move or because its spread moves. Separating the two shows whether the change is about rates or about credit. See Interest Rate.
Credit derivatives
Advanced
Credit default swaps let investors trade default risk directly; their prices move closely with credit spreads. See Credit Default Swap.
Common mistakes
Chasing high yields without checking ratings
Higher yield means higher risk.
Using mismatched benchmarks
Compare with a government bond of similar maturity.
Ignoring liquidity
Thinly traded bonds carry extra spread.
Assuming narrow spreads mean safety
They can widen quickly.
Check your understanding
Test yourself before moving on. Each answer comes with an explanation.
Key points to remember
- A credit spread is the extra yield over a comparable government bond.
- It compensates for default and liquidity risk.
- Lower ratings mean wider spreads.
- Widening spreads signal stress; narrowing spreads signal confidence.
- Quoted in basis points: 100 bp = 1%.
Frequently asked questions
What is a high-yield bond?
Why do spreads widen in recessions?
Is a credit spread the same as an options credit spread?
Further learning
- Treasury Bills, Notes and Bonds
The benchmark for spreads.
- Yield to Maturity
How bond yields are measured.
- Recession
When spreads usually widen.
- Interest Rate
The other driver of bond yields.
Sources
This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.
- Investor.gov (SEC). High-Yield Bond or Junk Bond (glossary) (opens in a new tab) Checked .
- Investor.gov (SEC). Investment-Grade Bond (glossary) (opens in a new tab) Checked .
- Investor.gov (SEC). Default (glossary) (opens in a new tab) Checked .
Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. We are not affiliated with any publisher linked above. Last reviewed . Report an error or request a source credit.