Stamped Security

Stamped Security Over the life of a security or bond, many different things will change and all of this has to be documented well by the issuers so that the investor is fully aware of these changes. That is what a stamped security is used for, as this type of security is stamped for the purpose of showing that a feature has been changed since the security was originally issued. One of the more common changes that is made is to the maturity date, as this will change depending on various market factors that are not always predictable for the issuer.