Accrual Bond

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Dictionary Says

Definition of 'Accrual Bond'

A bond that does not pay periodic interest payments. Instead, interest is added to the principal balance of the bond and is either paid at maturity or, at some point, the bond begins to pay both principal and interest based on the accrued principal and interest to that point. 
Investopedia Says

Investopedia explains 'Accrual Bond'

When the bond begins to pay both principal and interest based on the accrued principal and interest at that point, this is known as a Z tranche and is common in collateralized mortgage obligations (CMOs). In a CMO that includes a Z tranche, the interest payments that otherwise would be paid to the Z-tranche holder are used to pay down the principal of another tranche. After that tranche is paid off, the Z tranche begins to pay down based on the original principal of the tranche plus the accrued interest.

Similar to a zero-coupon bond, an accrual bond or Z tranche has limited or no reinvestment risk. However, accrual bonds, by definition, have a longer duration than bonds with the same maturity that make regular interest or principal and interest payments. As such, accrual bonds are subject to greater interest rate risk than bonds that make periodic payments over their entire terms.

Related Definitions

  • Z-Tranche

    A special type of bond class in a sequential pay collateralized mortgage obligation. This class of bond does not receive any interest or principal payments until all other tranches have ...
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  • Zero-Coupon Bond

    A debt security that doesn't pay interest (a coupon) but is traded at a deep discount, rendering profit at maturity when the bond is redeemed for its full face value. Also known as an ...
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  • Collateralized Mortgage Obligation - CMO

    A type of mortgage-backed security that creates separate pools of pass-through rates for different classes of bondholders with varying maturities, called tranches. The repayments from ...
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    • Duration

      A measure of the sensitivity of the price (the value of principal) of a fixed-income investment to a change in interest rates. Duration is expressed as a number of years. Rising interest ...
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    • Accumulation Bond

      A bond issued at an original issue discount (OID). This means that the interest accumulates but is not paid until maturity; there are no semi-annual coupon payments as with most bonds. ...
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    • Accrual Rate

      The rate of interest that is added to the principal of a financial instrument between cash payments of that interest. For example, a six-month bond with interest payable semiannually ...
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