What is an Unsecured Bond?

Unsecured Bond

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Unsecured Bond

An unsecured bond, also known as a “debenture,” is a type of debt security that does not have specific assets pledged as collateral. In other words, the issuer of the bond does not designate particular assets that would be seized or liquidated in the case of default. Instead, unsecured bonds are backed solely by the issuer’s creditworthiness and general ability to generate revenue and profits to repay the bondholders.


  • Interest Rate: Unsecured bonds typically carry a higher interest rate compared to secured bonds to compensate investors for the added risk they take on by not having collateral backing the bond.
  • Maturity: These bonds have a fixed maturity date by which the issuer promises to pay back the principal amount.
  • Credit Rating: The creditworthiness of the issuer is extremely important for unsecured bonds. Credit rating agencies assess the issuer’s ability to meet its obligations, which influences the bond’s interest rate.
  • Covenants: Many unsecured bonds come with covenants or agreements that place certain restrictions on the issuer, such as maintaining specific financial ratios or limiting additional debt issuance, to protect the interests of bondholders.


  • Credit Risk: Unsecured bonds carry a higher degree of risk since they are not backed by collateral. If the issuer defaults, bondholders are general creditors and stand behind secured creditors in the hierarchy of claimants.
  • Interest Rate Risk: Like all bonds, unsecured bonds are subject to interest rate risk. Their value falls as interest rates rise.
  • Liquidity Risk: Depending on the issuer and market conditions, there may be less liquidity for certain unsecured bonds, making them harder to sell at market value.

In summary, an unsecured bond is a debt instrument that offers potentially higher returns but comes with higher risks, largely dependent on the issuer’s financial health.

Example of an Unsecured Bond

Let’s use a hypothetical scenario to illustrate the concept of an unsecured bond.


  • GreenEnergy Corp. is a company focused on renewable energy solutions. They have been in business for 10 years and have a good track record, but they are not currently sitting on a lot of tangible assets like property or heavy machinery.
  • The company needs to raise $20 million for research and development in new green technologies and decides to issue bonds to finance this effort.

Bond Terms:

  • Type: Unsecured Bond (Debenture)
  • Principal Amount: $20 million
  • Maturity: 7 years
  • Interest Rate: 5% per annum, paid semi-annually
  • Credit Rating: BBB (indicating moderate level of risk)

Investor Decision:

  • Sophie, an investor, decides to buy $10,000 worth of GreenEnergy Corp.’s unsecured bonds. She is confident in the company’s future prospects and is willing to accept the 5% annual interest rate in return for the level of risk involved, which she considers moderate based on the company’s credit rating and history.

Possible Outcomes:

  • Successful Payback: If GreenEnergy Corp. is successful in its R&D and other business operations, it will generate sufficient revenue to pay the interest on the bonds every six months and return the principal amount to Sophie and other bondholders at the end of the 7-year term.
  • Default: If GreenEnergy Corp. faces financial difficulties and cannot meet its obligations, Sophie stands to lose her investment or receive less than she invested. Because the bond is unsecured, there are no specific assets that Sophie could lay claim to in the event of default.

In Summary:

Sophie’s $10,000 investment in GreenEnergy Corp.’s unsecured bond carries certain risks, primarily related to the company’s ability to meet its future financial obligations. However, she is willing to take that risk based on her confidence in the company’s mission and its moderate credit rating. She expects to earn a 5% return per year for the next 7 years, without having the assurance of collateral backing her investment.

This example shows how an unsecured bond functions from both the issuer’s and the investor’s perspectives, along with the risks and rewards associated with it.

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