The phrase "historical stock market return" usually refers to the S&P 500 long-run average of approximately 10% per year nominal (dividends reinvested). But this single number obscures the most important fact: historical returns vary enormously depending on which specific years you are invested. An investor who retired at the start of 2000 experienced a very different first decade than one who retired at the start of 2010.
This calculator applies the long-run historical averages to your specific amount and time horizon. Use the "Started 10y earlier" chip to see how timing affects outcomes. Then use Mode A with your actual start and end values to compare your personal return to the historical benchmark for the same period.
How sequence of returns risk affects historical results
Two investors can hold the same index fund for the same number of years and experience dramatically different outcomes if their periods overlap with different market sequences. An investor with a 30-year horizon beginning in 1982 caught one of the greatest bull markets in history. A 30-year period beginning in 1966 included the inflationary 1970s and two major bear markets in the first 15 years.
This is sequence-of-returns risk: the order in which gains and losses occur matters for long-term wealth accumulation, especially for investors making regular withdrawals (as in retirement). During the accumulation phase (saving), bad early years are less damaging because subsequent contributions buy more shares cheaply. In the withdrawal phase, bad early years deplete the portfolio before recovery occurs.
Historical returns by decade
1950s: S&P 500 returned ~20% per year (post-WWII economic boom). 1960s: about 8% per year. 1970s: roughly 6% per year (stagflation era). 1980s: approximately 18% per year (disinflation + falling rates). 1990s: about 18% per year (tech boom). 2000s: approximately −1% per year (two major crashes). 2010s: roughly 14% per year. 2020s (through 2024): approximately 14% per year.
The long-run 10% average includes all of this variation. The key insight: you do not get the average — you get the sequence you happen to live through. This is why broad diversification, consistent contributions (which buy more shares in downturns), and a long time horizon are the tools that bring individual outcomes closer to the historical average.
Frequently asked questions
What were historical stock market returns by decade?
The S&P 500 (total return, dividends reinvested) by decade: 1950s ~20%, 1960s ~8%, 1970s ~6%, 1980s ~18%, 1990s ~18%, 2000s approximately −1%, 2010s ~14%, 2020s ~14% through 2024. The long-run average is ~10%, but any individual decade can deviate substantially — including the "lost decade" of 2000–2009.
What is the historical stock market return from 1900?
U.S. stock market data going back to 1900 (using the Dow Jones or various indices constructed retroactively) shows a long-run real return (after inflation) of approximately 6.5–7% per year. The nominal return is roughly 9–10% depending on the period and methodology. This long-run data is consistent with the modern S&P 500 figures, suggesting the structural drivers of U.S. equity returns have been stable.
How does historical performance predict future returns?
It does not, reliably. Historical averages describe what was; they do not guarantee what will be. Research suggests that valuation levels (P/E ratios) have some predictive power for 10-year forward returns — high valuations tend to predict below-average subsequent returns. But even this relationship has significant uncertainty and is not actionable for most individual investors. Plan with the long-run average as a base case and stress-test with lower rates (5–6%).