![]() ![]() Modified duration is used more often than Macaulay duration in modern finance. The concept of modified duration can be applied to interest-rate-sensitive instruments with non-fixed cash flows and can thus be applied to a wider range of instruments than can Macaulay duration. (Price sensitivity with respect to yields can also be measured in absolute ( dollar or euro, etc.) terms, and the absolute sensitivity is often referred to as dollar (euro) duration, DV01, BPV, or delta (δ or Δ) risk). Modified duration, on the other hand, is a mathematical derivative (rate of change) of price and measures the percentage rate of change of price with respect to yield. ![]() It is equal to the maturity if and only if the bond is a zero-coupon bond. For a standard bond, the Macaulay duration will be between 0 and the maturity of the bond. Macaulay duration is a time measure with units in years and really makes sense only for an instrument with fixed cash flows. īoth measures are termed "duration" and have the same (or close to the same) numerical value, but it is important to keep in mind the conceptual distinctions between them. Modified duration is the name given to the price sensitivity and is the percentage change in price for a unit change in yield. Strictly speaking, Macaulay duration is the name given to the weighted average time until cash flows are received and is measured in years. The dual use of the word "duration", as both the weighted average time until repayment and as the percentage change in price, often causes confusion. When the price of an asset is considered as a function of yield, duration also measures the price sensitivity to yield, the rate of change of price with respect to yield, or the percentage change in price for a parallel shift in yields. In finance, the duration of a financial asset that consists of fixed cash flows, such as a bond, is the weighted average of the times until those fixed cash flows are received.
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