Where do I find a fund's duration?

On the fund's fact sheet, as average or effective duration.

Duration (bonds)

📈 Economics By CampusDown Wiki Editorial Team Last updated October 26, 2026

Duration measures a bond's sensitivity to interest rates: roughly how much its price changes for a 1-point move in yields. It's also the weighted-average time to receive its cash flows.

Contents

1. Two meanings
2. Why it matters
3. FAQ
4. References

Two meanings

Macaulay duration is the present-value-weighted average time until you get your coupons and principal. Modified duration converts that into price sensitivity: a bond fund with a duration of 7 should lose about 7% if rates rise 1 percentage point.

Why it matters

Longer maturities and lower coupons mean longer duration and more rate risk. When the Fed hiked rates in 2022, long-term Treasury funds dropped more than 30%. Expect rates to fall? Extend duration. Worried they'll rise? Shorten it. For big moves, convexity refines the estimate.

FAQ

Is duration the same as maturity?: Only for zero-coupon bonds.
Where do I find a fund's duration?: On the fund's fact sheet, as average or effective duration.

Sources reviewed: 2026-10-26

References

Macaulay, F. R. (1938). Some Theoretical Problems Suggested by the Movements of Interest Rates, Bond Yields and Stock Prices in the United States since 1856. NBER.
Fabozzi, F. J. (2015). Bond Markets, Analysis, and Strategies (9th ed.). Pearson.

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This article was last updated on October 26, 2026. It is based on widely recognized original works and textbooks; when citing it in a paper, please check the original sources listed in the references.