The present invention provides an investment option known as a lifetime income share. Lifetime income shares mitigate survival risk, the risk that an individual will outlive his or her assets. More specifically, the purchase of a plurality of lifetime income shares guarantees an individual a predetermined, periodic income payment for the life of the purchaser. The guaranteed stream of monthly income commences at a specified age. Furthermore, the guaranteed stream is utilized to supplement an existing income level or provide income in the event that the individual outlives his or her accumulated liquid assets.