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Historical returns · 97 years of data

If I invested in the S&P 500: historical return calculator (1928–2024)

Enter an amount and a start year — see what a lump sum in the S&P 500 would have been worth through the end of 2024, with dividends reinvested and inflation stripped out. Data goes back to 1928, so you can model the Great Depression, the 1970s stagflation, 2000-dot-com, 2008-GFC, or the 2020 COVID crash.

By Snowballr Research Team
Fact-checked against primary sourcesEditorial standards
Coverage: Compound interest · Retirement · FIRE · Debt payoff · Mortgages · Fraud prevention
Built from: IRS · FINRA · SEC · BLS · Federal Reserve · Freddie Mac30+ primary sources verified
Your what-if
$
1990
19282024
You would have
$329K
by end of 2024 — from $10K invested at start of 1990
In 1990 dollars (real, after inflation)$130K
Annualized nominal return10.49%
Annualized real return7.60%
Years held35
Cumulative inflation×2.53

Uses annual S&P 500 total return (with dividends reinvested) and CPI-U inflation, 1928–2024. Source: Damodaran (NYU Stern) + Shiller CAPE + BLS. Excludes fees, taxes, and bid/ask. Real return = nominal ÷ cumulative CPI.

The S&P 500 total return series combines price changes with reinvested dividends. Price-only and total-return questions are different, so this calculator keeps the dividend convention visible and then applies CPI-U to show growth in the initial year's purchasing power.

The compounding math is applied year-by-year to the actual annual return, not to a smoothed average. This matters because sequence-of-returns risk is real — a 1929 investor and a 1935 investor had wildly different first decades even though both eventually recovered. Our year-by-year chart lets you see the drawdowns instead of hiding them in an "annualized" number.

Long-run averages can hide the effect of the starting date. The 1970s stagflation period and the years after 1999 produced very different paths from the rebound after 2008. Pick a start year and inspect the annual trail, drawdowns and inflation-adjusted endpoint rather than relying on one average.

Frequently asked

How far back does S&P 500 data go?

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The modern S&P 500 index dates to 1957, but back-tested versions using the same methodology exist from 1928 (Standard Statistics 90-stock composite). Damodaran's dataset covers 1928 forward; Shiller's CAPE dataset goes to 1871 using earlier composites. This calculator uses the 1928–2024 window because it's the longest series that includes dividend data cleanly.

Are dividends reinvested?

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Yes. The return series is "total return" — price change plus dividends reinvested at each year-end. A price-only series answers a different question and will usually understate a shareholder's historical result. Use the calculator's year-by-year trail to see the difference rather than relying on a fixed headline estimate.

What is the average annual return of the S&P 500?

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Nominal annualized total return from 1928–2024 is approximately 10% (geometric mean, dividends reinvested). Real (CPI-adjusted) is approximately 7%. These are historical measurements for this stored series, not a forecast or a recommended planning rate.

How much would $10,000 invested in the S&P 500 in 1990 be worth through 2024?

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A $10,000 lump-sum invested at the start of 1990, with dividends reinvested and held through the end of 2024, is approximately $328,722 nominal and $129,939 in 1990 purchasing power in this dataset. That is a 10.49% nominal CAGR and 7.60% real CAGR over 35 years; change the inputs to reproduce another period.

Does this include fees?

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No. The historical series excludes fund expense ratios, taxes, bid/ask spreads and other investor-specific costs. Check the current prospectus for any fund you are comparing, then model an explicit fee assumption separately if you need an after-cost projection.
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Returns by decade
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Inflation-adjusted savings
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Historical returns are not indicative of future results. Excludes broker/ETF fees, taxes, and bid-ask spread. Data: Damodaran (NYU Stern), Shiller CAPE, BLS CPI-U. See our sources, editorial standards, and disclaimer.