Glossary

Junk Bond

A junk bond is a debt security issued by a company or government that credit rating agencies rate below investment grade, meaning it carries higher default risk and typically offers higher yields.

What Is a Junk Bond?

A junk bond is a type of bond that has been rated below investment grade by a credit rating agency. Rating agencies such as Moody's, S&P Global, and Fitch assess how likely a borrower is to repay its debt. Bonds rated at or above the investment-grade threshold are considered relatively safe, while those rated below it are considered speculative. Because of this speculative status, junk bonds are also called high-yield bonds or sub-investment-grade bonds.

Why Issuers Sell Junk Bonds

Companies with weaker finances, higher existing debt, or limited operating history often cannot borrow cheaply from banks or issue bonds with top ratings. To raise money, they may sell junk bonds and promise investors a higher coupon rate to compensate for the greater chance that they will fall behind on payments. Some junk bonds are also issued by companies that are taking on debt for a specific purpose, such as financing an acquisition or a leveraged buyout.

How Investors Evaluate Them

Investors in junk bonds usually focus on the difference between the bond's yield to maturity and the yield on safer government debt, known as the credit spread. A wider spread generally signals that the market sees more risk. Investors also look closely at the issuer's cash flow, debt levels, and ability to cover interest payments, since a default can result in partial or total loss of principal.

Advantages and Disadvantages

Junk bonds can offer higher income than investment-grade bonds and can perform well when the economy is strong and companies are meeting their obligations. They are also often more sensitive to the economy, and they tend to fall in value during periods of market stress or recession. Their prices can be volatile, and they are less liquid than many other bonds, which can make them harder to sell quickly at a fair price.

Why It Matters to Investors

Junk bonds are a distinct segment of the bond market that behaves differently from both government bonds and stocks. Many investors access them through mutual funds or exchange-traded funds to spread out the risk of any single issuer defaulting. Understanding a junk bond's credit rating, yield, and risk profile is important before adding one to a portfolio.

Updated October 15, 2026. For general education only; not financial, tax or legal advice.

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Related Terms

Bond

A bond is a loan that an investor makes to a borrower, such as a government or company, in exchange for regular interest payments and the return of the principal at a set maturity date.

Coupon Rate

A coupon rate is the fixed annual interest a bond pays, stated as a percentage of its face value. It determines the periodic coupon payments the bondholder receives until maturity.

Yield to Maturity (YTM)

Yield to maturity is the annualized total return an investor earns from a bond if it is held until maturity and all coupon payments are reinvested at the same yield.

Credit Spread

A credit spread is an options strategy that involves selling one option and buying a cheaper one on the same underlying, receiving a net credit upfront; the term also describes bond yield gaps.

Mutual Fund

A mutual fund is a pooled investment in which many investors combine money under professional management to buy a diversified portfolio of securities, with shares priced once per trading day.

Exchange-Traded Fund (ETF)

An exchange-traded fund is a pooled investment holding a basket of assets, such as stocks or bonds, that trades on a stock exchange throughout the day like an individual share.

Investment Grade

A credit rating assigned to a bond or issuer indicating relatively low default risk, specifically BBB- or higher from S&P and Fitch, or Baa3 or higher from Moody's.

Credit Rating

A credit rating is an independent assessment, usually expressed as a letter grade, of how likely a borrower is to repay its debt in full and on time.