Average maturity shows when the fund's underlying bonds are expected to mature, macaulay duration indicates how long it takes to recover the investment through cash flows, and modified duration measures how sensitive the fund's NAV is to changes in interest rates. Average maturity shows when the fund's underlying bonds are expected to mature, macaulay duration indicates how long it takes to recover the investment through cash flows, and modified duration measures how sensitive the fund's NAV is to changes in interest rates. by Soban News (international And National News)