This document summarizes different types of bonds. It discusses bonds in terms of:
1. Security - whether they are secured (backed by collateral like property) or unsecured (backed only by the issuer's promise to repay). Common types of secured bonds include mortgage-backed securities.
2. Redeemability - whether they can be redeemed or "called" by the issuer before maturity (redeemable) or must be held until maturity (non-redeemable). Redeemable bonds often have call features.
3. Convertibility - whether the bond can be converted to equity/stock (convertible bond) or must be held as a debt instrument (non-convertible