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Home › Fixed-Income Investing › Basics

Bond Maturity Explained: Duration, Perpetuals, & Interest Rate Impact

January 17, 2025 · Ahmad Nasrudin

Bond Maturity A Closer Look

Contents

  • Understanding bond maturity
  • Maturity date, term to maturity, and tenor
  • Bond maturity and investment horizon
  • Perpetual bonds with no maturity

Bond maturity is a fundamental concept in fixed-income investing. It refers to the date when a bond issuer must repay the principal amount to the bondholder.

Understanding this and grasping the concept of bond duration is crucial. It is also important to consider the nuances of perpetual bonds when making informed investment decisions. In the following sections, we will delve deeper into these concepts and explore their implications for investors.

Understanding bond maturity

A bond maturity signifies the day when the issuer is obligated to return the principal amount to the bondholder. This principal amount, also known as the face value or par value, is the initial amount invested in the bond.

A bond maturity is a crucial factor to consider when making investment decisions. It directly impacts the bond’s risk profile and potential returns.

Generally, longer-term bonds offer higher interest rates to compensate for the increased risk of holding them for an extended period. However, they are more sensitive to interest rate fluctuations.

Conversely, shorter-term bonds typically offer lower interest rates but are less susceptible to interest rate risk. By understanding a bond’s maturity, investors can align their investment horizon with its term and make informed choices based on their risk tolerance and return objectives.

Maturity date, term to maturity, and tenor

A bond maturity is the date when the issuer is obligated to repay the principal amount to the bondholder. This principal amount, or the face value or par value, is the initial amount invested in the bond.

For instance, if a bond is issued on January 1, 2024, with a maturity date of January 1, 2029, the issuer will repay the principal amount to the bondholder on January 1, 2029.

Term to maturity refers to the time remaining until the bond’s maturity date. It’s essentially the countdown to the bond’s expiration. For example, if it’s currently December 1, 2025, its term to maturity is approximately three years and 1 month.

Maturity date, term to maturity, and tenor
Maturity date, term to maturity, and tenor

The tenor of a bond is synonymous with its term to maturity. It’s a measure of the bond’s duration, indicating the length of time the investor will hold the bond until it matures. So, a bond issued on January 1, 2024, with a maturity date of January 1, 2029, has a tenor of 5 years.

Bond maturity and investment horizon

Your investment horizon plays a crucial role when considering bond investments. This horizon represents the length of time you intend to hold the bond. It’s essential to align your investment horizon with the bond maturity.

Short-term bonds: These bonds mature within a year. They offer lower interest rates but are less susceptible to interest rate fluctuations.

Intermediate-term bonds: These bonds mature in 2 to 10 years. They balance risk and reward, offering moderate interest rates and sensitivity to interest rate changes.

Long-term bonds: These bonds mature in 10 years or more. They typically offer higher interest rates but are more vulnerable to interest rate fluctuations. In a more precise definition, “bonds” actually refer to them. The short—and medium-term ones are called bills and notes.

The impact of interest rate changes

Interest rate fluctuations can significantly impact bond prices, especially for longer-term bonds. The relationship between interest rates and bond prices is inversely proportional. This means that when interest rates rise, bond prices typically fall, and vice versa.

To understand this, consider a simple analogy: if you’re lending money to a friend at a fixed interest rate of 5%, and suddenly, the prevailing interest rate in the market rises to 7%, your loan becomes less attractive. Why? Because new lenders can offer loans at a higher rate.

Similarly, when interest rates rise, newly issued bonds offer higher coupon rates to attract investors. As a result, the value of existing bonds with lower fixed interest rates declines. Investors demand a higher price for older bonds to compensate for their lower interest rates.

Conversely, when interest rates fall:

  • New bonds offer lower coupon rates.
  • Existing bonds with higher coupon rates become more attractive.
  • Investors are willing to pay a premium for these bonds.

Bond duration

A bond’s duration measures its sensitivity to interest rate changes. In simpler terms, it quantifies how much a bond’s price will fluctuate in response to a change in interest rates.

Longer-term bonds have higher durations and are more susceptible to interest rate fluctuations because their cash flows are more distant in time. Shorter-term bonds, on the other hand, are less sensitive to interest rate changes.

In addition, the coupon rate, or the interest rate paid on the bond, also influences duration. Lower-coupon bonds tend to have higher durations, as a larger portion of their value is derived from future cash flows.

Perpetual bonds with no maturity

Perpetual bonds, also known as perpetual securities or infinity bonds, are a unique type of bond that has no specific maturity date. Unlike traditional bonds, where the issuer must repay the principal at a fixed date, perpetual bondholders receive regular interest payments indefinitely.

Key characteristics of perpetual bonds

  • No maturity date: The bond never matures, and the principal is not repaid.
  • Continuous interest payments: Investors receive regular interest payments, often structured as a fixed or floating rate tied to a benchmark index.
  • Callable feature: Many perpetual bonds have a call feature, allowing the issuer to redeem the bonds at a predetermined price after a certain period.

Why invest in perpetual bonds?

Perpetual bonds can be an attractive investment for various reasons. Firstly, they often offer higher yields than traditional bonds, primarily due to their perpetual nature and the associated increased perceived risk. 

Secondly, they provide a steady income stream through continuous interest payments, making them suitable for investors seeking regular income. Lastly, perpetual bonds may appreciate in value, particularly in a declining interest rate environment.

Risks associated with perpetual bonds

While offering unique investment opportunities, perpetual bonds come with inherent risks. Changes in interest rates can significantly impact their market value. Additionally, the issuer’s default could result in the loss of both principal and interest payments. 

Furthermore, many perpetual bonds are callable, meaning the issuer can redeem them at a predetermined price, potentially leaving investors with a lower return than expected. Given these risks, perpetual bonds are best suited for investors with a long-term perspective and a higher risk tolerance.

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About the Author

I'm Ahmad. As an introvert with a passion for storytelling, I leverage my analytical background in equity research and credit risk to provide you with clear, insightful information for your business and investment journeys. My expertise also extends to Wellsifyu.com, where I empower you with smart shopping insights. Learn more about me

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