A method, machine, article for a specified event bond. The method can include: storing in memory terms of a bond indenture for a bond, the indenture including a contingent liability obligation whereby an issuer of the bond is obligated to pay to an investor in the bond if a specified event occurs; determining, by a computer accessing the memory and receiving market data, an amount of contingent liability corresponding to the obligation; and outputting, by the computer, the determined amount of the contingent liability.