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What Are Junk Bonds

Junk bonds, more formally called high yield or non-investment-grade bonds, are debt securities issued by borrowers that credit rating agencies judge to have a higher chance of failing to pay. Because investors take on more credit risk, these bonds typically offer higher coupon payments than bonds from stronger issuers. Higher income can look attractive, but it is compensation for real risk, not a free bonus. This guide explains how ratings define the category, why yields are higher, and what careful investors should verify before buying high yield debt directly or through funds.

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How credit ratings define junk bonds

Credit rating agencies assess how likely a borrower is to meet its debt payments and assign ratings on a scale. Bonds rated below a certain threshold on that scale are classified as non-investment grade, commonly called high yield or junk. The label does not mean the bond will default; it means the agencies see a meaningfully higher probability of payment problems than for investment-grade issuers. Ratings can change over time. A downgrade can push an investment-grade bond into junk territory, while an improving issuer can be upgraded. Because ratings are opinions rather than guarantees, careful investors read the issuer's financial disclosures alongside the rating rather than relying on the rating alone. Key terms used here are defined in the Glossary at /glossary.

Non-investment-grade ratings signal higher assessed default probability, not certain default.
Ratings are opinions from agencies and can be revised up or down.
Downgrades from investment grade can force some institutional holders to sell.
Issuer financial statements matter as much as the rating letter.

Why yields are higher and what that compensates for

The extra yield on junk bonds exists because investors demand compensation for extra risk. The main risk is credit risk: the issuer may miss coupon payments or fail to repay principal, and in a default investors may recover only part of their money, sometimes after a lengthy process. High yield bonds also tend to be more sensitive to the economic cycle, since weaker borrowers struggle most when conditions tighten. Liquidity is another factor: some high yield issues trade infrequently, so selling quickly may mean accepting a lower price. The gap between high yield and stronger-rated bond yields, often called the spread, widens and narrows over time, which affects prices even when no default occurs.

Credit risk: missed payments or default can mean partial or total loss.
Economic sensitivity: weaker issuers are hit harder in downturns.
Liquidity risk: thin trading can make exits slow or costly.
Spread movements can cause price swings even without defaults.

A research checklist before buying high yield debt

Before buying an individual junk bond, read the offering documents for the coupon terms, maturity, call features, covenants and where the bond ranks in the issuer's capital structure. Review the issuer's recent financial disclosures for debt levels and cash flow. Many investors access high yield through funds instead, which spreads issuer risk but adds fund fees and does not remove credit or market risk. If you plan to buy bonds or bond funds through a broker, confirm in the broker's current documents which instruments are available to your account, the fees and minimums involved and how holdings are custodied. Do not rely on third-party summaries for any of these details. The Education hub at /education has related fixed income guides, and the Find my broker tool at /find-my-broker can help you organize that verification into a research workflow.

Read the bond's full terms: coupon, maturity, calls, covenants and seniority.
Review issuer financials rather than relying on the rating alone.
Funds spread issuer risk but add fees and retain credit and market risk.
Verify instrument availability, fees and custody in current broker documents.

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FAQ

Are junk bonds always a bad investment?

The label describes a credit rating category, not an automatic verdict. High yield bonds pay more because they carry more credit and liquidity risk. Whether a specific bond fits a portfolio depends on the issuer's finances, the bond's terms, the price paid and the investor's capacity for loss.

What happens if a junk bond issuer defaults?

In a default, coupon payments may stop and repayment of principal is uncertain. Recovery depends on the issuer's assets, the bond's seniority in the capital structure and the outcome of any restructuring or insolvency process, which can take considerable time and may return only part of the investment.

Should I buy individual junk bonds or a high yield fund?

Individual bonds concentrate risk in single issuers and require reading each bond's documents, while funds spread issuer risk but charge fees and still carry credit and market risk. Compare both routes against your goals and confirm availability, costs and terms in your broker's or fund provider's current documents.