They style of bond offered. It could be collateral, convertibility, maturity, cost, or transfer method.
As a hard and fast income security, a bond is categorized based on (1) Collateral: perhaps the bond is completely secured by a particular asset that can be sold because of the bondholder to fulfill a claim (see secure relationship), or perhaps is guaranteed only because of the issuer's reputation and credit (see debenture). (2) Convertibility: whether the bond can be exchanged for any other securities of the providing business at a future time (see convertible relationship). (3) Maturity: whether or not the bond has one readiness date or several, and how very long could be the maturity period: much longer the maturity duration, greater the danger and greater the attention rate. (4) cost: whether or not the relationship is sold below par value, at par price, or above par worth. (5) Transfer method: if it is a bearer-bond or a registered relationship.