Macaulay Duration: Definition, How It Works, Formula, and Example

Modified duration provides an estimate of the percentage price change for a bond given a change in its yield-to-maturity. Modified duration provides a linear estimate of the percentage price change. In terms of absolute value, the change is the same for either an increase or decrease in the yield-to-maturity. The modified duration statistic for a fixed-rate bond is easily obtained if the Macaulay duration is already known. An alternative approach is to approximate modified duration directly. | P

Effective Duration & Interest Rate Risk | CFA Level 1

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