Abstract: Computer implemented methods, systems and computer programs for creating, managing and supporting financial instruments referred to as Call Put Referenced Structures (CPRS) as provided. CPRS units are a derivative of real estate financial options and convey the right to future compensation to the CPRS owner based on CPRS algorithms used to determine the CPRS terms and values over the life of the CPRS rather than the theoretical change in market value of the subject property. The system references associated property price indices, evaluated by the system and selected by the counterparties, based on (a) the probability that the referenced property price indices rise and fall over the term of the CPRS will correlate to the rise and fall of the theoretical market value of the subject property, (b) the secondary market liquidity of the referenced indices and (c) the ability to directly or indirectly trade the referenced indices.