Relationship Between Bonds & Interest Rates
When you buy a bond you're lending money to the bond's issuer, who promises to pay back the principal when the loan is due or the maturity date. While holding the bond, the issuer also promises to pay you periodic interest payments to compensate you for the use of your money. The rate at which the issuer pays you, the bond's stated interest rate or coupon rate, is generally fixed at issuance.
An Inverse Relationship
When new bonds are issued, they usually carry coupon rates at or close to the prevailing market interest rate. Interest rates and bond prices have what's called an "inverse relationship." When one goes up, the other goes down. How does the market interest rate affect the value of a bond you already own or a bond you want to buy from or sell to someone else? The answer lies in the concept of "opportunity cost."
Investors constantly compare the returns on their current investments to what they could get elsewhere in the market. As market interest rates change, a bond's coupon rate becomes more or less attractive to investors, who are therefore willing to pay more or less for the bond itself.
Suppose the Dewey, Cheatum & Howe Company offers a new issue of bonds carrying a 7% coupon. This means it would pay you $70 a year in interest. After evaluating your investment alternatives, you decide this is a good deal, so you purchase a bond at its par value, $1,000.
What if Rates Go Up?
Now let's suppose that later that year, interest rates in general go up. If new bonds costing $1,000 are paying an 8% coupon ($80 a year in interest), buyers will be reluctant to pay you face value ($1,000) for your 7% Dewey bond. In order to sell, you'd have to offer your bond at a lower price, a discount, that would enable it to generate approximately 8% to the new owner. In this case, that would mean a price of about $875.
What if Rates Fall?
Similarly, if rates dropped to below your original coupon rate of 7%, your bond would be worth more than $1,000. It would be priced at a premium, since it would be carrying a higher interest rate than what was currently available on the market.
Sincerely,
Susan Wallace
Carteret Mortgage Corp
571-283-1337
Susan@Susan-W.com |