A bond is the present value of its coupons and its face amount. The yield is the discount rate.
Coupon is not yield
The coupon is what the bond pays. The yield is the return a buyer earns at the market price. When you demand a higher yield than the coupon, you will only buy the bond below face value. When you accept a lower yield, you pay a premium.
The bond calculator discounts each coupon and the face amount. It assumes the next coupon is a full period away. A bond bought between coupon dates has accrued interest on top of that clean price.
Run the same question with your figures
Bond Prices Fall When Yields Rise points to the Bond Calculator because the note is about price moves when the yield and the coupon disagree. The form on that page asks for Face value ($1,000.00), Coupon rate (5%), Yield (4.50%), Years to maturity (10), Payments per year (2). Its opening example produces Bond price is $1,039.91. Use the article to see which piece of the payment, the tax, or the balance the heading is talking about. Use the calculator when you want the same relationship with your own inputs. The two pages are not copies of each other.
Bond Prices Fall When Yields Rise points to the Present Value Calculator because the note is about what a future sum is worth today. The form on that page asks for Periods (10), Discount rate per year (6%), Payment each period ($0.00), Future value ($15,000.00), P/Y, periods per year (1). Its opening example produces Present value is -$8,375.92. Use the article to see which piece of the payment, the tax, or the balance the heading is talking about. Use the calculator when you want the same relationship with your own inputs. The two pages are not copies of each other.
How to read this note
Bond Prices Fall When Yields Rise is one question, not a plan for every account you own. The opening claim is this: A bond is the present value of its coupons and its face amount. The yield is the discount rate. The sections above stay on that claim. They use a worked figure so the relationship is visible. A worked figure is not a prediction that your loan, your fund, or your tax year will match it.
Read the headings in order. Coupon is not yield. If a sentence names a calculator, that link is the place to change the inputs. If a sentence names a limit, the limit is the one published for the year written on the page, which is 2026 where this desk cites a retirement or tax figure.
A senior reading of a finance page looks for three things. The formula should match the labels. The example should be reproducible on the calculator. The page should say what it leaves out. This note tries to do those three. It does not tell you to borrow, to sell, to contribute the maximum, or to file a return from the illustration.
What the note leaves out
Bond Prices Fall When Yields Rise ignores facts it does not mention. Fees, state tax, a credit score, an employer match you have not typed, and a market that refuses to pay a flat rate are all outside the paragraph. When one of those facts is the actual question, open the calculator that asks for it or read the disclaimer before you move money.
Published 25 Oct 2026. If a public figure in the note is later revised by the IRS, a lender, or a data source, the calculator page and the methodology are the places this desk updates. The note does not store what you type, and it is not a message from a broker or a tax preparer.
Before you treat the example as yours
Bond Prices Fall When Yields Rise uses a specific illustration so the relationship is easy to see. The category is Investing. The tools sitting next to the note are Bond Calculator, Present Value Calculator. Open one of them, replace the example, and press Calculate if the decision in front of you depends on your balance, your rate, or your income. The article does not update itself when those facts change.
A careful reading checks three matches. The heading should be the question you have. The worked number should use inputs you can point to. The omitted items, named above, should be irrelevant or added back in a field. If any of the three fails, do not stretch the conclusion. A bond is the present value of its coupons and its face amount. The yield is the discount rate.
Keep the note and the calculator apart in your notes. The note explains why the pieces move. The calculator shows how far they move once you type them. Publishing date 25 Oct 2026 is the version of the explanation you are reading. Public limits can change after that date, and the methodology is where this desk records the figures it is willing to stand behind.
FAQs
Why did my bond fund drop when rates rose?
The existing bonds pay yesterday’s coupon. New bonds pay more, so yesterday’s bonds are worth less until they mature. The price move is the math, not a broken fund.
What is Bond Prices Fall When Yields Rise actually deciding?
A bond is the present value of its coupons and its face amount. The yield is the discount rate.
Where do I put my own numbers?
Open Bond Calculator or Present Value Calculator. The article’s example is already explained. The calculator is the place to change the fields and press Calculate.
Does the example include every fee and tax?
Only the pieces the note names. Anything missing from the example is missing from the result. Add it in the matching field or treat the figure as incomplete.
Is this a recommendation?
No. Bond Prices Fall When Yields Rise shows a relationship so you can see it. It is not advice to buy, sell, borrow, or contribute. The disclaimer states that limit in one place.