They are not competing for the same job. One owns the market; the other is a contract that borrows a little of its upside in exchange for never going below zero.
This is the question people ask before they will trust anyone selling annuities, and it deserves a straight answer. An index fund and a fixed index annuity are not two versions of the same thing. One owns the market. The other is an insurance contract that credits you part of the market's gain in good years and nothing in bad ones.
So the useful question is not which one returns more. Over most long stretches the index fund will. It is what you give up for the 0% floor, and whether that trade is worth it for the specific money you are deciding about.
General comparison. Specific contracts and funds vary. Cap ranges reflect published industry figures as of September 2026 and are not any single carrier's rates.
Here is the same $100,000 run through two made-up ten-year stretches. The index fund gets the price return plus 1.5% in dividends, minus a 0.05% expense ratio. The annuity is credited on price return with a 10% annual cap and a 0% floor.
Hypothetical sequences for illustration only, not historical returns and not a prediction. Assumes the 10% cap holds for all ten years, which it may not, and no rider fees or withdrawals. Not an illustration of any specific product.
Over a full market cycle, usually not. With a 10% cap and a 0% floor, averaging 7% requires most years to hit the cap and very few to be flat, which is what happened in the strong decade above and is not what full cycles typically look like.
The 7% figure people are quoted usually comes from somewhere else entirely. Many annuities with income riders advertise a guaranteed roll-up rate of 6% or 7%. That rate grows a benefit base used to calculate your lifetime income payments. It is not your cash value, you cannot withdraw it, and it is not a return. It is one of the most common sources of confusion in this whole market, and worth asking about directly if someone quotes you a guaranteed 7%.
Not from the index. In 2008 the S&P 500 fell roughly 37% including dividends, and in 2022 roughly 18%. An index annuity credited 0% in those years, and the value already credited stayed put.
But the floor is not a promise that your balance never goes down. Surrender charges apply if you take out more than the free amount early. A market value adjustment can reduce an early withdrawal. Income rider fees are deducted whether the index rises or not, so in a flat year with a rider attached, the value can fall. And a 0% year is still a year of losing ground to inflation. More on what an annuity actually costs.
Usually the honest answer is that the question is about which money, not which product.
Over most long periods an index fund returns more, because it keeps the dividends and the full upside while an index annuity caps gains and usually excludes dividends. What the annuity offers instead is a 0% floor, so index losses never reduce your value. Which is better depends on the money: long-term growth money has historically been better served by owning the market, while money needed within about ten years or intended for guaranteed income is where the floor can earn its cost.
Over a full market cycle, usually not. With a typical 10% cap and 0% floor, averaging 7% requires most years to hit the cap. The 7% figures people are often quoted are income rider roll-up rates, which grow a benefit base used to calculate lifetime income. That is not cash value, cannot be withdrawn, and is not an investment return.
Not from index losses, because the floor is almost always 0%. You can still see your value fall from surrender charges on early withdrawals above the free amount, a market value adjustment, or income rider fees deducted regardless of index performance. A 0% year also loses ground to inflation.
The contract is typically credited 0% for that period, so the loss does not reach your value, and interest credited in earlier years stays locked in. In 2008 the S&P 500 fell roughly 37% including dividends and in 2022 roughly 18%; an index annuity credited nothing in those years rather than losing value. The trade is that in strong years the annuity is limited by its cap.
Most do not. Index annuity strategies usually credit interest based on the index's price change alone, so the dividends that make up part of an index fund's total return are not included. That is one of the main reasons index annuities trail index funds over long strong periods.
It depends on which money and what job it has. Long-term growth money that can ride out a large decline has historically been better served by owning the market; that is a question for a registered investment adviser. Money needed within roughly ten years, money you cannot afford to see fall at the wrong time, or money you want converted to guaranteed income is where an annuity can fit. Emergency money belongs in neither, because of the surrender period.
Outside a retirement account, index fund gains held long-term and qualified dividends are taxed at capital gains rates, while annuity gains grow tax-deferred and are taxed as ordinary income when withdrawn, which is higher for most people. Inside an IRA the difference largely disappears, since both are tax-deferred. Texas has no state income tax. Confirm your situation with a CPA.