Duration and convexity metrics for a 6 Mo Treasury bond yielding 3.72% as of April 27, 2026. Modified duration is 0.49 years, meaning a 1 basis point change in yield moves the price by approximately $0.0049 per $100 face value. These metrics help fixed income investors measure and manage interest rate risk across the maturity spectrum.
| Price | Mod Duration | Mac Duration | DV01 | Convexity | ΔP (+100bp) |
|---|---|---|---|---|---|
| $100.00 | 0.49 yr | 0.50 yr | $0.0049 | 0.48 | $-0.49 |
Par bond (coupon = yield). Semiannual compounding.
Modified duration measures the percentage price change of a bond for a 1% parallel shift in yields. At a modified duration of 0.49 years, the 6 Mo Treasury will lose approximately $0.0049 per $100 face value for each basis point rise in rates (its DV01). Convexity captures the curvature in the price-yield relationship — for large rate moves, a bond with higher convexity will outperform a linear duration estimate on both rallies and selloffs. These metrics are computed assuming a par bond with semiannual compounding at the current 3.72% yield, making them directly comparable across maturities. Portfolio managers use duration to size interest rate hedges and to evaluate the risk-return tradeoff when extending or shortening portfolio maturity.