Course 101: Bond Market Interest Rates
Bond Maturities and Interest Rates
 In this course 1 Introduction 2 Interest Rates and Bond Pricing 3 Bond Yields and Market Pricing 4 Bond Maturities and Interest Rates 5 Duration, Interest, and Maturity 6 Watch Bond Interest Rates Carefully

Changing interest rates affect bonds with varying maturities differently. Bond prices change with changing interest rates, so the effective yield of a previously issued bond will be more in line with that of current issues. Bonds sell for a premium in a declining interest rate environment and sell at a discount in a rising interest rate environment. The redemption value at maturity is less for the premium bond and is more for the discount bond. The difference between the purchase price and the redemption price is a component of the bond's yield. The further a bond is from maturity, the greater will be the difference between the purchase price and the redemption value at maturity. Let's look at an example.

Bonds sell for a premium in a declining interest rate environment and sell at a discount in a rising interest rate environment.

If a bond with a 5% coupon and a ten-year maturity is sold on the secondary market today while newly issued ten-year bonds have a 6% coupon, then the 5% bond will sell for \$92.56 (par value \$100). The \$5 coupon payment (5.4% of the \$92.56 selling price) plus the additional \$7.44 received at maturity (\$100 par value - \$92.56 = \$7.44) produces a 6% yield-to-maturity. Now what happens if this 5% bond matured in twenty years? It would sell at a discounted price of \$88.44 to produce a 6% yield-to-maturity. So, when interest rates rise, the longer a bond's maturity, the more a bond seller will discount its price. The shorter the bond's maturity, the smaller the discount.

This also means that when interest rates fall and bonds are sold at a premium, bonds with shorter maturities will have smaller premiums than bonds with longer maturities.

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