A participation rate is the percentage of an index's gain that a fixed index annuity credits to your account. A 55% participation rate means that if the index rises 10%, you are credited 5.5%. It is one of the levers insurers use to set your indexed return.
In plain terms: Your share of the index's gain, expressed as a percentage.
Think of a participation rate like a profit-sharing split. You get an agreed slice of the index's gain, not the whole thing. As of July 30, 2026, Fidelity & Guaranty Life's FG AccumulatorPlus 10 offers a crediting option with a 55% participation rate on the S&P 500. A product may use a participation rate, a cap, a spread, or a mix, so read which levers apply to the option you pick.
Participation rate and cap rate answer the same question in different ways: how much of the index's rise you keep. A product with a high participation rate but no cap can behave very differently from a capped product in a big up year.
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