Why bond prices fall when yields rise, explained

Bond prices fall when yields rise because most bonds promise fixed payments, and those payments are worth less when investors can buy new bonds offering higher returns. The short answer to “why do bond prices fall when yields rise” is price adjustment: the old bond must trade at a discount so its fixed coupon and principal repayment produce a yield competitive with the new market rate.

That inverse relationship is central to government, corporate and municipal bond markets. It affects a Treasury note in a pension fund, a corporate bond in an exchange-traded fund and the price an investor sees when selling a bond before maturity. The mechanism is arithmetic rather than sentiment, though expectations about inflation, central bank policy and credit risk can all move the arithmetic.

Why do bond prices fall when yields rise?

A bond is a contract. The borrower, called the issuer, receives money upfront and promises to make interest payments, called coupons, and repay the principal, also called face value or par value, at maturity. A typical bond might have a $1,000 face value, a 5% annual coupon and a five-year maturity. That means it pays $50 a year and returns $1,000 at the end, assuming the issuer pays as promised.

Once issued, many bonds trade in the secondary market. Their coupons do not reset just because market rates change. If new five-year bonds of similar credit quality now offer 6%, a bond paying only 5% is less attractive at its original $1,000 price. Buyers will demand a lower price.

The lower price raises the buyer’s effective return. A $50 annual coupon on a $1,000 price is a 5% coupon rate. A $50 coupon on a price closer to $958, plus the eventual repayment of $1,000, produces a yield near 6% under standard annual-payment bond math. The bond’s cash payments did not change. The price changed so the yield matched the market.

The same logic works in reverse. If comparable market yields fall below 5%, the old bond’s $50 coupon becomes more valuable. Buyers may pay more than $1,000, called a premium, because the bond offers income above the rate available on new comparable bonds.

What does “yield” mean on a bond?

Yield is the return a bond buyer earns based on the price paid and the cash flows expected. The term can mean several related measures, so the distinction matters.

• Coupon rate is the stated interest rate on the bond’s face value. A 5% coupon on $1,000 pays $50 a year.

• Current yield is the annual coupon divided by the current market price. A $50 coupon on a $950 bond gives a current yield of about 5.26%.

• Yield to maturity is the annualized return if the bond is held until maturity and all promised payments are made. It includes coupon income and any gain or loss from buying below or above par.

When markets say bond yields rose, they usually mean the yield to maturity on actively traded bonds rose. Those changes are often quoted in basis points, where one basis point equals one-hundredth of a percentage point. A move from 4.50% to 4.75% is a 25-basis-point increase, a convention explained in what a basis point is and why markets use it.

Yield is not the same as the issuer’s coupon obligation. A Treasury or company with an existing fixed-rate bond still owes the stated coupon. The market price moves because buyers and sellers revise the return they require for holding that stream of payments.

How the discount-rate math sets the price

Bond pricing rests on present value, the idea that money received in the future is worth less than money received today. The discount rate is the return investors require to accept that wait and the risks attached to it. In a bond market, the yield is the discount rate that equates the present value of future cash flows with the bond’s current price.

Take the five-year, $1,000 bond paying $50 a year. If investors require 5%, the present value of those five coupon payments plus the $1,000 principal repayment is $1,000. The bond trades at par.

If the required yield rises to 6%, each future payment is discounted more heavily. The $50 due next year is worth less today than before, and the $1,000 due in five years is worth less as well. Add those lower present values together and the bond’s price falls below par. If the required yield falls to 4%, the discount rate is lower, the future payments are worth more today and the price rises above par.

This is why the inverse relationship is mechanical for ordinary fixed-rate bonds. The bond has a set of future payments. The market changes the rate used to value those payments. Price is the balancing item.

Which bonds move the most when yields change?

Not all bonds react by the same amount. The main measure of interest-rate sensitivity is duration. Duration estimates how much a bond’s price changes for a given change in yield. A bond with a duration of five years would be expected, as a rough approximation, to lose about 5% of its price if yields rise by one percentage point, before accounting for more advanced curvature effects known as convexity.

Several features shape duration and price sensitivity:

• Longer maturity usually means more sensitivity. A payment due in 30 years is affected more by a change in the discount rate than a payment due in three months.

• Lower coupons usually mean more sensitivity. If more of the bond’s value comes from the final principal repayment rather than near-term coupons, the price depends more on distant cash flows.

• Higher-quality bonds can be more visibly tied to rate moves. Treasury bonds have minimal credit risk by market convention, so changes in risk-free rates often dominate their prices.

• Credit-risky bonds can move for more than one reason. A corporate bond’s yield includes compensation for default risk, so a widening credit spread can push its price down even if government yields are stable.

The yield curve also matters. A yield curve plots yields across maturities, from short-term bills to long-term bonds. If two-year yields rise while 30-year yields are steady, short- and intermediate-maturity bonds feel the pressure more than long bonds. For a fuller reference, see a yield curve shows how markets price time.

Why do yields rise in the first place?

Yields rise when investors demand more return to hold a bond. That demand can come from several sources, and the source affects which bonds are hit hardest.

Inflation expectations are a common driver. If investors expect future money to buy less, they demand a higher nominal yield, meaning a yield before adjusting for inflation. That higher required yield lowers the price of existing fixed-rate bonds.

Central bank policy is another driver. When a central bank raises short-term policy rates, yields on short-maturity bonds often adjust because investors can earn more on cash-like instruments. The effect can spread to longer maturities if markets expect policy rates to stay higher or inflation to remain firmer. The transmission from the Federal Reserve’s target rate into financial conditions is covered in how the Fed’s rate target reaches the real economy.

Real yields can also rise. A real yield is the return after adjusting for inflation. If investors require a higher real return, prices of inflation-protected and conventional bonds can fall. The distinction matters for securities designed to compensate for inflation, such as Treasury Inflation-Protected Securities, which are compared with savings bonds in TIPS or I bonds for inflation protection.

Credit risk can lift yields as well. If investors think a borrower has become more likely to miss payments, they require a wider spread over safer government debt. In that case, the bond price falls because the market is demanding compensation for default risk, not only for changes in general interest rates.

What if you hold the bond to maturity?

A price decline is a market value loss. Whether it becomes a realized loss depends on what the holder does and whether the issuer pays as promised.

An investor who buys a high-quality fixed-rate bond at par and holds it to maturity will receive the stated coupons and principal if the issuer does not default. Interim market prices can fall when yields rise, but the final contractual payment remains par for a standard non-callable bond. The investor still faces opportunity cost: new bonds may pay higher coupons, while the old bond’s money is locked into a lower rate.

An investor who sells before maturity realizes the market price at the time of sale. If yields have risen since purchase, that sale price may be below the purchase price. Bond funds and exchange-traded funds also mark their holdings to market, so their share prices can fall as yields rise even though individual bonds inside the portfolio continue paying coupons.

Some bonds have additional features. A callable bond can be repaid early by the issuer under stated conditions, which changes the expected cash flows. Floating-rate notes have coupons that reset periodically, so their prices are usually less sensitive to rate moves than fixed-rate bonds with similar credit risk. Inflation-linked bonds adjust principal or payments according to an inflation measure, but their market prices can still fall when real yields rise.

The practical takeaway

Bond prices fall when yields rise because investors reprice fixed future payments against the return available in the market. The coupon and principal promise may be unchanged, but the present value of those cash flows falls when the required yield rises.

For investors, borrowers and policymakers, the useful questions are specific: how long the bond’s duration is, whether the yield move comes from inflation, central bank policy or credit risk, and whether the holder needs to sell before maturity. Those details determine whether a rise in yields is a modest mark-to-market change, a significant portfolio loss or a higher income opportunity on new bonds.

Frequently asked questions

Can you lose money on bonds when interest rates rise?

Yes, if you sell a bond after market yields have risen, its price may be below what you paid. A holder who keeps a standard bond to maturity and the issuer pays as promised receives the stated coupons and principal, but still may have earned less than newer bonds offered after rates rose.

Do bond prices fall when the Fed raises rates?

They often fall, especially at shorter maturities, because the Fed’s policy rate influences the return available on cash and short-term debt. Longer-term bond prices depend on more than the current policy rate, including inflation expectations, growth expectations and the market’s view of future rates.

Why are long-term bonds more sensitive to rising yields?

Long-term bonds have more of their cash flows far in the future, so those payments are discounted for more years. A higher yield therefore reduces their present value more sharply than it reduces the value of a short-term bond with similar credit quality.

Are higher bond yields good or bad?

Higher yields can be good for new buyers because they can earn more income on bonds purchased at the new rate. They are generally negative for existing bond prices, and they can raise borrowing costs for governments, companies and households.