An equity-indexed annuity is different from other fixed annuities because of the way it credits interest to your annuity's value. Some fixed annuities only credit interest calculated at a rate set in the contract. Other fixed annuities also credit interest at rates set form time to time by the insurance company. Equity-indexed annuities credit interest using a formula based on changes in the index to which the annuity is linked. The formula decides how the additional interest, if any is calculated and credited. How much additional interest you get and when you get it depends on the features of your particular annuity.
Annuity Definition
