Call Risk

The risk for a bond buyer that a callable bond may be redeemed by the issuer before maturity

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What is Call Risk?

Call risk is the risk for a bond buyer that exists in purchasing a callable bond. The chance that the bond may be redeemed (i.e., called) before its scheduled maturity date represents an investment risk for the buyer, as it can result in them earning less from their bond purchase investment than they expected.

Call risk is essentially the same as reinvestment risk, as will be explained below.

Call Risk


  • Call risk is the risk for a bond buyer that exists in purchasing a callable bond – one that may be redeemed by the issuer before maturity.
  • Call risk is essentially reinvestment risk.
  • Callable bonds typically offer a premium over principal repayment in the event that the bond is called – it represents compensation to the bond investor for assuming the call risk.

Callable Bonds

Some corporate and municipal bonds may be called – that is, redeemed early, before their stated maturity date – by the issuer. Such a call feature exists as an embedded option – an option but not an obligation – in the bond indenture, the bond’s purchase agreement that lays out all the terms regarding the bond.

The terms include things such as the bond’s par value, the stated coupon rate, the frequency and schedule of coupon payments, the bond’s maturity date, and the terms of any call provision that exists with the bond.

The right of the issuer to redeem the bond prior to maturity is commonly time-limited. Typically, there is a period of time following the initial issuance of bonds during which the issuer may not exercise its early redemption option.

For example, for a bond with a stated maturity of five years, the bond indenture may state that the issuer cannot redeem the bond prior to two years from the original bond issue date. Such a limitation provides investors with some protection against the bond’s call risk, guaranteeing that – unless the issuer defaults on its debt obligations – they will at least receive coupon payments for a period of two years.

Why Bonds are Called

To understand why bonds may be called, you need to understand the point of view of the bond’s issuer. When a company or a municipality issues bonds, it usually does so by offering interest rates comparable to the prevailing market rates. However, interest rates fluctuate over time. If an issuer sells bonds with a stated maturity date of 10 years, there is a significant likelihood that prevailing market interest rates will rise or fall during the life of the bond.

If interest rates should rise over the bond’s life, then the issuer would benefit, as it is paying less interest on its borrowed money than the current market rate. However, if interest rates decline during the bond’s term, then the issuer finds itself paying a higher rate of interest than the rate it would need to pay if it borrowed money at the current prevailing interest rates.

If the fall in interest rates is substantial enough, for example, a decline from 7% to 4%, then the issuer may want to redeem its outstanding 7% coupon rate bonds and issue new bonds that only require the issuer pay a 4% coupon rate. In short, by redeeming a bond issue early, the issuer has an opportunity to lower its borrowing cost.

Call Risk - Determinants

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Call Risk – Time and Interest

The risk that a buyer of a callable bond faces is the potential lost investment return if their bond is redeemed early, thus depriving them of the full amount of interest that they had expected to receive over the full life of the bond. Call risk is often referred to as reinvestment risk. The following example shows how reinvestment risk works:

Assume that you buy a 10-year bond with a stated coupon rate of 8%. The bond is callable after three years from issue. Three years into the life of the bond, prevailing interest rates have fallen to 4%. The bond issuer exercises its call option and redeems the bond early. Thus, you have only received three years’ worth of 8% interest on your bond, rather than the 10 years of 8% interest payments that you were expecting.

You have received your principal back, the money you paid for the bond, but if you go looking to purchase a new bond, you will most likely only find bonds offering the prevailing market interest rate of 4%. Thus, reinvesting in new bonds effectively costs you seven years’ worth of 4% more interest (8% – 4% = 4%) that you would have earned had your prior bond not been redeemed early.

Because a call provision exposes a bond investor to reinvestment risk, most call provisions specify a call price – the price the issuer must pay an investor to redeem the bond early – that represents a premium to the bond’s original face value. The premium is compensation to the investor for assuming the call risk when they buy a bond.

The primary determinants of call risk are interest rates and time. If prevailing interest rates are in a downtrend, then there is a greater likelihood that rates will fall substantially during the life of a bond and that the issuer may, therefore, call the bond.

The greater the amount of time until the bond’s maturity also represents a higher call risk, as a significant decline in interest rates is more likely to occur over a long span of time rather than within a relatively short period. Thus, for example, there is a higher call risk with a 20-year callable bond than with a five-year callable bond.

More Resources

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