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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchWhen market yields rise, the prices of existing fixed-rate bonds generally fall. A bond fund that owns those securities can therefore lose value, even if it holds U.S. Treasuries. To assess your exposure, look beyond the fund’s name: review its duration, maturity profile, holdings, credit quality, stated risks, and whether you may need to sell during a decline.
Why rising yields can lower Treasury prices
A conventional fixed-rate Treasury note or bond pays a coupon set at auction, while its market price changes. When newly available yields are higher, an existing bond’s lower coupon is less attractive, so its price generally falls. That lower price raises the existing bond’s yield to maturity relative to its old coupon. TreasuryDirect explains that a Treasury note or bond trades below par when its yield to maturity is above its coupon rate, and above par when the yield is below its coupon rate. Notes and bonds pay interest every six months. TreasuryDirect’s Treasury notes overview describes these features.
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The SEC illustrates the mechanics with a hypothetical 10-year Treasury that has a 3% coupon and $1,000 face value. With nine years remaining, if market rates move from 3% to 4%, the example’s price falls to $925. That is an illustration, not a forecast for every one-percentage-point rate move: the actual change depends on the bond’s cash flows and remaining maturity. The SEC’s investor bulletin on interest-rate risk explains the example and the general relationship.
How a Treasury yield change reaches a bond fund
A bond fund owns a portfolio of bonds and other debt securities. If market prices of its existing holdings fall, the value of the portfolio—and typically the fund’s net asset value (NAV)—can be pressured. Treasury backing reduces issuer credit risk compared with many other borrowers, but it does not prevent market-price losses before a bond matures. The SEC notes that investors can lose money in bond funds, including funds holding only U.S. government bonds, and that nearly all bond funds face interest-rate risk. The SEC’s overview of bond risks distinguishes these risks.
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A rate change alone does not determine a fund’s total return. A fund may receive interest income, reinvest proceeds from maturing or sold holdings at prevailing yields, and change its portfolio over time. Those factors do not guarantee that income will quickly offset a price decline; the result depends on the fund and the market path.
What to check before judging your fund’s rate risk
Use the fund’s latest prospectus and shareholder report rather than relying on a broad category label. The SEC recommends reading these disclosures, which explain a fund’s strategy, holdings, and risks. Its mutual fund and ETF overview explains where investors can find fund information.
Duration
Duration is a practical measure of how sensitive a bond or portfolio is to interest-rate changes. All else equal, a fund with longer duration is generally more sensitive to rate moves than one with shorter duration. Treat the reported figure as a sensitivity measure, not a guaranteed estimate of the fund’s realized loss or return: actual results also depend on holdings, changing rates, income, and portfolio activity. The SEC discusses duration and bond-fund risk in its bond-investing guidance.
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Check how soon the fund’s bonds are due to mature and how much exposure it has to longer maturities. Longer-maturity holdings generally have more interest-rate risk than otherwise comparable shorter-maturity holdings. A fund’s name or broad category may not tell you the maturity exposure of its current portfolio.
Holdings and credit quality
Identify whether the fund owns Treasuries, corporate debt, mortgage-backed securities, or other instruments, and review the credit quality of those holdings. Treasury exposure generally carries less issuer credit risk than lower-quality corporate debt, but it still carries interest-rate risk. Different security types can also respond differently to market conditions.
Other disclosed risks
Interest-rate movements are not the only potential source of loss. SEC materials identify credit risk—the possibility that an issuer will not make scheduled payments—and prepayment risk, which can arise when debt is repaid earlier than expected. Read the prospectus’s risk section for the risks relevant to the fund’s particular securities and strategy. See the SEC’s discussion of bond risks.
Your time horizon and liquidity needs
Consider whether you might need to sell shares to raise cash while the fund’s value is down. A potential price decline matters differently to someone who needs near-term access to the money than to someone whose plans allow more flexibility. Do not assume that every investor can or should hold through a recovery.
How to compare two bond funds
Compare each fund’s current disclosures on the same terms. A similar label does not establish similar exposure, and a Treasury-focused fund can still have meaningful rate sensitivity.
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| What to compare | What to look for | Why it matters |
|---|---|---|
| Duration | Each fund’s currently reported duration | Longer duration generally means greater sensitivity to rate changes, all else equal. |
| Maturity exposure | The portfolio’s maturity profile and concentration in longer-dated holdings | Longer maturities generally carry more interest-rate risk than otherwise similar shorter maturities. |
| Holdings and credit quality | The types of debt securities held and their credit quality | Security type and issuer quality affect credit exposure and how the portfolio may respond to market conditions. |
| Stated risks | The prospectus’s descriptions of interest-rate, credit, prepayment, and other applicable risks | Yield changes are only one possible source of a fund’s risk. |
| Objective and fees | Each fund’s current objective and fee disclosures | These help establish what the fund is designed to do and what it charges; the objective does not remove investment risk. |
Use the prospectus and latest shareholder report for the funds you are actually considering; this comparison is a framework, not a ranking or a recommendation of a particular fund.
What Treasury backing does—and does not—protect
Treasury backing relates to the U.S. government’s obligation to make scheduled payments on Treasury securities. It does not hold a fund’s market price or NAV constant when yields change. Credit risk and interest-rate risk are different: a security may have low issuer credit risk yet still decline in market value before maturity.
Scope and limitations
This is general investor education, not an individualized portfolio recommendation. The figures above are a hypothetical example published by the SEC in 2013; they are not current Treasury yields or a prediction of a particular fund’s performance. No specific fund can be judged from the topic alone: its current disclosures and an investor’s circumstances matter.
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