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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OFF-FRONT PAYMENT see UP-FRONT PAYMENT.

STOCK OPTION is a contractual right granted by a company to the named holder of the option the right to purchase the companys stock at a fixed price stated on the stock option within a specified period of time. If the stock option is not exercised within the specified period of time, then the contractual right lapses.

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