Historical Stock Market Returns: What the Data Actually Shows
The U.S. stock market has averaged roughly 10% per year in nominal terms (before inflation) over nearly a century of data. That number is real — but what the average obscures is almost as important as the average itself.
The Long-Run Average
The S&P 500 and its predecessors have delivered approximately:
- ~10% nominal (before inflation) annualized return, 1926–present
- ~7% real (after inflation) annualized return over the same period
These figures include dividends reinvested. The 7% real return is the number most commonly used in retirement planning and the default assumption in most FIRE calculators (including this one).
What the Average Hides
The headline number is an annualized average. The actual year-by-year returns look nothing like it.
Some notable years:
- 1954: +52.6%
- 1958: +43.4%
- 1995: +37.6%
- 2003: +28.7%
- 2008: -37.0%
- 2002: -22.1%
- 2000: -9.1%
- 2020: -34% (peak to trough in February–March), then recovered to finish the year +18.4%
A "10% per year" portfolio doesn't return 10% any given year. It returns wildly variable amounts, with the average working out over decades.
Major Crashes and Recoveries
Every major crash in U.S. market history eventually recovered — though the timelines varied dramatically.
Great Depression (1929–1932): The Dow fell ~89% from peak to trough. Full recovery took approximately 25 years in nominal terms (shorter in real terms for investors who reinvested dividends throughout).
Stagflation bear market (1973–1974): Down ~48% over two years. Recovery took about 7 years in real terms.
Dot-com bust (2000–2002): The S&P 500 fell ~49%. Recovery took about 7 years.
2008–2009 financial crisis: Down ~57% from peak to trough. Recovery took about 4–5 years (faster for investors who kept investing through the downturn).
COVID-19 (2020): Down ~34% in 33 days — the fastest crash in history — then recovered fully within months.
The pattern: crashes happen, recoveries follow, and long-term returns reflect the underlying growth of the economy.
Time in Market vs. Timing the Market
Missing even a small number of the market's best days has an enormous impact on long-run returns.
A J.P. Morgan analysis found that if you missed the 10 best trading days in the market from 2003–2023, your annualized return would have been roughly half of a buy-and-hold investor's. Miss the best 20 days: roughly a third.
The problem is that the best days often come during or immediately after the worst periods. Investors who sell during a crash to "wait for things to calm down" frequently miss the recovery.
Sequence of Returns Risk
Here's a counterintuitive risk: two portfolios can have the same average return over a period but produce very different outcomes depending on the order returns arrive.
For an investor who is still accumulating, early bad years aren't catastrophic — you're buying shares at lower prices. But for a retiree taking withdrawals, bad years early in retirement deplete principal at the worst time, leaving less to participate in the recovery.
This is sequence of returns risk, and it's the primary reason the 4% rule involves uncertainty. A retiree who faces a 2008-level crash in their first year of retirement is in a much more precarious position than one who faces it 15 years in.
International Returns
The U.S. has been an exceptional performer over the past century. International developed markets (Europe, Japan, Australia) have had lower long-run returns and longer periods of underperformance.
This is part of the case for international diversification: you don't know in advance which markets will lead. Holding a global index captures returns wherever they come from, at the cost of holding markets that sometimes lag the U.S.
What This Means for Your Plan
The 7% real return used in this calculator is a long-run historical average. It's the most reasonable single-number assumption for a diversified portfolio over a 30–50 year period.
But "average" doesn't mean "what you'll get every year." Stress-testing your plan against lower returns (5–6% real) gives you a sense of how much your retirement depends on achieving average results.