DURATION Definition

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DURATION, in securities, is a measure in years of interest rate risk for a specific security or portfolio. Duration is the weighted average time to receive the present value of cash flows from a specific security or portfolio. When the duration is divided by the discount rate plus one, the resulting modified duration measures the sensitivity of a bond to changes in interest rates. Used by bond managers instead of maturity as it accounts for all principal and interest cash flows in addition to the final maturity payment. For example, the duration of a 10-year zero-coupon bond equals its maturity of 10, while the duration of a 10-year 7.5% coupon bond is less than seven years.

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MILLAGE is a rate (as of taxation) expressed in mills per dollar.

UNIFORM CAPITALIZATION RULES (UNICAP), in the U.S., is a method of valuing inventory for tax purposes that requires capitalization of direct costs, e.g. material and labor, and an allocable portion of indirect costs that benefit or are incurred because of production or resale activities. Certain expenses must be included in the basis of the property or in inventory costs rather than currently deducted. These costs are then recovered through depreciation or amortization or as cost of goods sold.

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