Indexed annuities are insurance contracts that, depending on the contract, may offer a guaranteed annual interest rate and some participation growth, if any, of a stock market index. Such contracts have substantial variation in terms, costs of guarantees and features and may cap participation or returns in significant ways. Any guarantees offered are backed by the financial strength of the insurance company. Surrender charges apply if not held to the end of the term. Withdrawals are taxed as ordinary income and, if taken prior to 59 ½, a 10% federal tax penalty.  Investors are cautioned to carefully review an indexed annuity for its features, costs, risks, and how the variables are calculated.