Junk bonds, also called high-yield bonds, are debt rated below investment grade. That means a real, formal line: BB+ or lower at S&P and Fitch, Ba1 or lower at Moody's.
Below that line, an issuer is judged more likely to miss a payment or fail to repay principal at maturity, so investors ask for a higher yield to hold the debt. A high yield is compensation for that risk. It's not a promised return, and it doesn't reduce the chance the money never comes back.
Key Takeaways
- Junk bonds sit below BB+/Fitch and S&P, or Ba1 at Moody’s—the cutoff for investment grade.
- Coupon, price and yield are different, and a bond can pay interest while losing value.
- Junk bonds usually yield more than investment-grade debt and Treasuries due to higher credit risk.
- Investors can use individual bonds, high-yield ETFs or actively managed funds, each with different tradeoffs.
- Credit spread is the extra yield over a comparable Treasury and a gauge of market risk appetite.
- High-yield spreads and bond prices often move alongside equities, currencies and other risk assets.
What Are Junk Bonds
A bond is a loan. A company or government borrows money from investors and agrees to pay interest on a schedule, then return the principal at maturity. Credit rating agencies, mainly S&P Global, Moody's and Fitch, grade the borrower's ability to keep that promise.
Agency | Lowest Investment-Grade Rating | Highest Junk (Speculative) Rating |
|---|---|---|
S&P Global | BBB- | BB+ |
Fitch | BBB- | BB+ |
Moody's | Baa3 | Ba1 |
Investment grade runs from AAA down to BBB- at S&P and Fitch, or Aaa down to Baa3 at Moody's. Anything rated BB+ or lower at S&P and Fitch, or Ba1 or lower at Moody's, is speculative grade, the technical term for what the market calls junk. The label sounds dismissive, but plenty of large, familiar companies carry it, sometimes because of high debt loads rather than weak businesses.
What the rating actually measures is the odds of missed payments and how much a lender might recover if that happens, according to S&P Global's ratings definitions.
Fast Fact
- The ICE BofA US High Yield Index spread widened from 2.66% to 2.93% between September 21 and September 25, 2026, a 27 basis point move in four trading days.
Coupon, Price and Yield Are Three Different Numbers
These three get used almost interchangeably in casual conversation, and that's where a lot of confusion about bonds starts.
How the Three Connect
The coupon is fixed at issuance, a set dollar amount paid on a set schedule, based on the bond's face value. The market price is whatever investors will pay for the bond today, and it moves constantly. Yield is what you actually earn given the price you paid, not the price at issuance.
When a bond's price falls, its yield rises, because the same fixed coupon now represents a bigger percentage of a smaller purchase price. That relationship runs in both directions and it's the single most important mechanic in fixed income.
How a Bond Can Pay You but Lose Value
Say a company issues a junk bond at $1,000 face value with a 7% annual coupon, paying $70 a year. You buy it at issuance. A year later, the company's outlook worsens and the market starts demanding more compensation for the risk.
The bond's price falls to $900 while you're still holding it. You collected your $70 coupon, but your position is now worth $100 less than what you paid. Sell at $900, and a 7% coupon didn't save you from a net loss of $30 on the year. Nothing about that $70 payment was fake or wrong.
The coupon and the total return on your capital are simply not the same question.
Junk Bonds vs Investment-Grade Corporates vs Treasuries
Treasuries carry the US government's credit, treated as close to risk-free for domestic default purposes, so they sit at the bottom of the yield stack. Investment-grade corporate bonds sit above Treasuries, compensating for a modest amount of credit risk. Junk bonds sit highest, because the credit risk is the whole reason the yield exists in the first place.
Bond Type | Typical Rating | Relative Yield | Main Risk |
|---|---|---|---|
US Treasuries | Not rated (sovereign) | Lowest | Interest-rate risk, minimal default risk |
Investment-grade corporates | AAA to BBB- / Aaa to Baa3 | Moderate | Interest-rate risk, modest credit risk |
Junk (high-yield) bonds | BB+ and below / Ba1 and below | Highest | Credit risk (default, downgrade), plus interest-rate risk |
The gap between junk and Treasury yields isn't fixed. It stretches and compresses with the economic cycle, which is exactly why traders track it as a running gauge rather than a static number.
How People Actually Buy High-Yield Debt
There's no single correct way in. It depends on how much control over individual credit risk you want versus how much diversification you'd rather have handed to someone else.
Route | Diversification | Control | Liquidity |
|---|---|---|---|
Individual bonds | None, single issuer | Full, you choose the credit | Often thin, wide bid-ask |
High-yield ETF/fund | Broad, many issuers | None over individual holdings | Generally easier, but can widen in stress |
Individual Bonds
Buying a single company's bond means betting on that one issuer. You know exactly what you own, but a downgrade or default hits your position directly, with no other holdings to soften it. Minimum purchase sizes and thin secondary markets can also make individual junk bonds harder to trade than most people expect.
High-Yield ETFs and Funds
A high-yield ETF or mutual fund holds dozens or hundreds of issuers at once, spreading single-name risk across the basket. That diversification doesn't remove credit risk from the asset class itself, and in a genuine credit selloff, high-yield funds can still see sharp, correlated price drops, sometimes amplified by investors trying to exit a less liquid market all at once.
The Real Risks of High-Yield Debt
High-yield bonds can provide attractive income, but the higher yield comes with additional risks that investors need to understand. These risks can affect both the bond's market price and the total return an investor ultimately receives.
Risk | What It Means |
|---|---|
Default and recovery | Issuer misses payment; recovery is partial, not guaranteed |
Downgrade | Rating cut can trigger forced selling even without default |
Interest-rate risk | Rising rates pressure bond prices broadly, junk included |
Liquidity risk | Thinner trading, wider spreads, harder exits in stress |
Early redemption | Callable bonds can be repaid early, capping upside |
Default and Recovery
The biggest risk is that the issuer misses an interest payment or cannot repay the principal when the bond matures. If a default occurs, bondholders may recover part of their investment through restructuring, asset sales or other proceedings.
The amount recovered depends on factors such as seniority, collateral and the issuer's financial condition. Recovery can vary widely, and investors should not assume they will receive their full principal back.
Downgrades
A credit-rating downgrade can hurt a bond's price even if the issuer continues making all of its payments. Some institutional investors and funds have rules requiring them to sell bonds that fall below certain rating thresholds.
This can create additional selling pressure and push prices lower. A downgrade can therefore affect investors before an actual default takes place.
Interest-Rate Risk
Junk bonds are still exposed to changes in interest rates, even though credit risk is usually a larger factor in their yields. When rates rise, existing bonds can become less attractive compared with newly issued debt offering higher yields, putting pressure on their prices.
High-yield bonds can therefore be affected by both changes in interest rates and changes in the market's view of credit risk.
Liquidity
High-yield bonds generally trade less frequently than U.S. Treasuries and many investment-grade corporate bonds. In normal markets, this may not be a major issue, but liquidity can deteriorate quickly during periods of stress. Bid-ask spreads may widen, buyers may become harder to find, and investors may have to accept a lower price to sell quickly.
Early Redemption
Many junk bonds include call provisions that allow the issuer to repay the debt before its scheduled maturity. Companies are more likely to do this when interest rates fall and refinancing becomes cheaper.
While early repayment reduces the issuer's borrowing costs, it can limit the investor's potential gains and force them to reinvest the returned capital at lower prevailing yields.
Credit Spreads: What Traders Actually Watch
A credit spread is the extra yield investors demand to hold a risky bond instead of a safer one of similar maturity. It's usually quoted in basis points, where one basis point equals 0.01 percentage points.
Item | Value |
|---|---|
Face value | $1,000 |
Coupon rate | 7% annual |
Coupon received (year 1) | $70 |
Price at purchase | $1,000 |
Price after downgrade | $900 |
Price change | -$100 |
Net result for the year | -$30 |
A Basis-Point Example
If a high-yield bond yields 7.87% and a comparable Treasury yields roughly 4.94%, the spread is about 293 basis points, or 2.93 percentage points. That gap is the market's price for taking on the extra credit risk, separate from the base interest-rate environment both bonds are exposed to.
A Dated Example From FRED
The ICE BofA US High Yield Index Option-Adjusted Spread, tracked on the St. Louis Fed's FRED database, moved from 2.66% on September 21, 2026 to 2.93% on September 25, 2026. Over that same window the index's effective yield rose from 7.46% to 7.87%, according to FRED's BAMLH0A0HYM2 series.
A 27 basis point widening in four sessions is a real, measurable shift in how much extra compensation the market wanted for junk credit risk, not a rounding artifact.
Why Spreads Move With Risk Appetite Elsewhere
Widening spreads generally track a cooling in risk appetite. Narrowing spreads generally track the opposite. That's why traders watch high-yield spreads alongside equity indices, currency pairs and other risk-sensitive markets, they tend to move together during genuine shifts in sentiment, even though none of them causes the others.
A spread reading is context for the broader market mood, not a standalone trading signal on its own, and it should be read alongside price action elsewhere, not instead of it.
Conclusion
Junk bonds carry more credit risk than investment-grade debt, and their yield is compensation for that risk, not a promise of return.
Three numbers matter here, and they're not the same thing: coupon, price and yield. Credit spreads bring them together, offering one of the clearer real-time reads on market risk appetite.
FAQ
Are junk bonds safe?
No. They carry higher default risk than investment-grade bonds.
What happens if a junk bond defaults?
The issuer misses payments or principal. Investors may recover some value, but not necessarily all.
Can you lose money even if the bond pays interest?
Yes. A price decline can outweigh the interest you receive.
Why do traders watch high-yield credit spreads?
They show changes in credit-market risk appetite.
Is a high yield the same as a good investment?
No. Higher yields usually reflect higher credit risk.
Disclaimer: This content is for informational purposes only and should not be considered investment advice. Trading financial markets involves significant risk. Always conduct your own research before making any trading decisions.