Duration
Duration is one of the most useful measures for understanding a bond's sensitivity to changes in interest rates. In general, bonds with higher duration tend to experience larger price movements for a given rate change.
Interest rate risk is the possibility that changing interest rates will affect the value, income or performance of an investment. It is especially important for bond investors, but rate changes can also influence stocks, real estate, borrowing costs and broader portfolio valuations.
Interest rates influence the cost of borrowing, the value of future cash flows and the attractiveness of different investments. Understanding these relationships can make portfolio risk easier to evaluate.
For many existing fixed-rate bonds, market prices generally move in the opposite direction from prevailing interest rates. When newly issued bonds offer higher yields, an older bond with a lower fixed coupon may become less attractive. Its market price may therefore fall so that its overall yield is more competitive with newer bonds.
The reverse can happen when market interest rates decline. Existing bonds with higher fixed coupon payments can become relatively more attractive, which may support their market prices.
For many fixed-rate bonds, prices and market interest rates generally move in opposite directions.
The actual price response depends on factors such as maturity, coupon, duration, credit quality and market expectations.
Interest rate risk is not identical across every bond or portfolio. The maturity, duration, coupon and structure of an investment can all influence its sensitivity.
Duration is one of the most useful measures for understanding a bond's sensitivity to changes in interest rates. In general, bonds with higher duration tend to experience larger price movements for a given rate change.
Longer-maturity bonds can generally have greater exposure to changes in market rates.
The size and timing of a bond's cash flows can affect its sensitivity to interest-rate movements.
The relationship between current yields and existing bond coupons can affect market pricing.
Investments receiving more cash flows sooner can have different rate sensitivity than investments with distant cash flows.
Interest rates do more than influence bond prices. They can affect borrowing costs, business investment, consumer spending, real estate activity and the valuation of financial assets.
Existing fixed-rate bonds can experience price changes when market yields move. Longer-duration bonds can be particularly sensitive.
Higher rates can influence company financing costs, consumer demand and the present value investors place on future earnings.
Mortgage rates and financing conditions can influence property affordability, demand, investment activity and valuations.
Interest-rate changes can affect yields available on savings accounts, certificates of deposit and other cash-oriented products.
Consider a hypothetical bond paying a fixed annual coupon. If new bonds begin offering higher yields, investors may demand a lower price for the older bond to compensate for its relatively smaller coupon.
If market yields decline instead, the older bond's fixed payment can become more attractive compared with newly issued securities, which can support its market price.
Duration is not a guarantee of how much a bond will move, but it provides a useful way to compare interest-rate sensitivity across fixed-income investments.
Generally less sensitive to rate changes than longer-duration bonds.
Offers a middle ground between shorter and longer interest-rate exposure.
Generally more sensitive to changes in market interest rates.
Managing interest rate risk does not necessarily mean avoiding bonds or interest-sensitive investments. It means understanding the exposure and matching it with your time horizon, income needs and risk tolerance.
Holding investments with different maturities and rate sensitivities can reduce dependence on one particular rate environment. Diversification should be considered alongside credit quality, asset allocation and overall portfolio objectives.
Understand how maturity can influence price sensitivity.
Compare duration when evaluating fixed-income exposure.
Consider when you expect to need the money.
Rate risk should be assessed alongside other investment risks.
The same portfolio can behave differently when interest rates are rising, falling or moving within a narrow range.
Existing fixed-rate bond prices may face pressure as newly issued securities begin offering higher yields. Borrowing costs can also increase.
Existing fixed-rate bonds may become relatively more attractive when new securities offer lower yields, potentially supporting bond prices.
When rates remain relatively stable, other factors such as credit quality, economic growth and issuer fundamentals may become more prominent.
Investors sometimes focus on coupon income without considering how market rates can affect the value and future opportunity cost of a fixed-income investment.
A bond's coupon tells you about its scheduled interest payment, but it does not tell you everything about market-price sensitivity or total return.
Two bonds can have similar credit quality but very different sensitivity to interest-rate movements because their durations differ.
Treasury securities, corporate bonds, municipal bonds and other fixed-income investments can have different risk characteristics.
When rates fall, investors receiving coupons or maturing principal may have to reinvest that money at lower available rates.
Learn how broad market movements can influence investment values and portfolio performance.
Explore Market Risk → 02Understand how rising prices can reduce purchasing power and affect real investment returns.
Explore Inflation Risk → 03Learn why the ability to sell or access an investment can matter during changing market conditions.
Explore Liquidity Risk →
Interest rate risk is the possibility that changes in market interest rates will affect the value, income or performance of an investment. It is most commonly associated with fixed-income securities such as bonds.
When new bonds are issued with higher yields, existing bonds with lower fixed coupons can become less attractive. Their market prices may decline so that their effective yield becomes more competitive with newer securities.
When market rates decline, existing fixed-rate bonds with higher coupons can become relatively more attractive. Their market prices may rise, although the actual result depends on the bond and market conditions.
Duration is a measure commonly used to estimate a bond's sensitivity to changes in interest rates. In general, a bond with higher duration tends to experience larger price movements for a given change in rates.
Yes. Changes in interest rates can influence borrowing costs, consumer demand, business investment and the value investors place on future corporate earnings. The impact varies by company and market environment.
Interest rate risk generally cannot be eliminated completely. Investors can manage exposure by considering maturity, duration, diversification, asset allocation and the time horizon for which the money is invested.
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