A call feature or call provision is part of the agreement a bond issuer makes with a buyer, detailing the schedule and price of redemptions before maturity. Most corporate and municipal bonds have ten-year call features, while government securities usually do not.
A closed-end mortgage is a type of mortgage bond issue with an indenture that prohibits repayment before maturity and the repledging of the same collateral without the permission of the bondholders, also known as a closed mortgage.
An indenture is a formal agreement, also known as a deed of trust, between an issuer of bonds and the bondholder which outlines key considerations such as the form of bond, amount of issue, property pledged, protective covenants, working capital requirements, and redemption rights.
A secured bond is a type of bond backed by some form of collateral such as a mortgage or other lien. The specifics of the security are detailed in the bond agreement, known as an indenture. Unlike secured bonds, debentures (unsecured bonds) are not backed by collateral.
Series bonds are a group of bonds issued at different times with different maturities but under the same indenture.
