A computer-implemented method and system is used for formation on an electronic exchange of a wide range of contractual relationships between a holder of rights or other assets and acquirers of rights and liabilities associated with such assets based on segregated asset participation units. Such parties to the contractual relationships can equally be individuals or business entities in any combination. Furthermore, in some circumstances, the terms of the contractual relation are defined by a sponsor who defines the terms and in some instances provides or arranges for services that are referenced in the contractual terms.