Investing for the Duration
Duration is an important concept in the world of Bonds. It measures the sensitivity of a bond to changes in interest rates. Thus, a bond (or a portfolio of bonds) that has a duration of 5 will be expected to move 5% in price for a change of 1% in the discount rate (i.e .the market rate of interest). A bond/portfolio with a duration of 10 would see a 10% rise/fall in price for a given 1% move in rates etc,etc. Ceteris Paribus, the longer the maturity, and the lower the coupon, the longer the duration of a bond – think of it in terms of how long it takes to get your money back; the lower the coupon payment on a bond, the longer an investor must wait before his/her investment is fully returned.