ETF Bond Duration: All-Term ETFs, or Exchange Traded Funds, are a type of investment that allows traders to diversify their portfolios without having to buy numerous individual assets. ETFs are traded on stock exchanges and can be bought and sold like any other security. Bond ETFs are a type of ETF that invest in bonds instead of stocks. The duration of a bond ETF is the average maturity of the bonds held in the fund. All-Term bond ETFs are a type of bond ETF with no defined maturity date. Instead, the fund managers select bonds with different maturities in order to provide investors with exposure to the entire bond market. All-Term bond ETFs offer investors a higher degree of flexibility and can be used to hedge against rising interest rates.