Patent ID: 7031938

Claim:
A system for causing investment returns for individual investors in a fund to correspond to occurrence of selected events with respect to investment options selected by said individual investors in said fund, the system comprising a computer having a program including instructions for: defining a plurality of said investment options each having a yield calculator, said calculator having a value related to occurrence, to each said option, of predefined events; selecting a nominal yield of said fund; allocating a portion of said nominal yield to each of said investment options ratably with respect to the portion of said value of each said yield calculator bears to a total of all values of all of said yield calculators; calculating, on a periodic basis, a change in total value of assets owned by said fund and ratably allocating said change to investors in said fund; and periodically redetermining said values in each of said yield calculators by measuring occurrence of said predefined events during a selected measuring period.