What is the average S&P 500 return over 10 years?

The S&P 500 10-year rolling average has ranged from -1% (2000 to 2009) to +20% (1990 to 1999) across different starting points in history. The most recent completed 10-year period (2015 to 2024) delivered approximately 14% annualized including dividends, well above the long-run average, partly driven by the extraordinary performance of mega-cap technology companies.

Is 10% a realistic return for S&P 500 investments?

10% is the historical long-run nominal average including dividends. It is not realistic as a near-term expectation given current elevated valuations. For planning purposes, 7% nominal is more conservative and appropriate for projections involving the next 10 to 30 years. The 10% historical average included decades with lower starting valuations and higher dividend yields than today's market.

How do dividends affect S&P 500 returns?

Dividends have historically contributed approximately 40% to 50% of total S&P 500 returns over long periods. In the high-yield eras of the 1950s to 1970s, dividends added 4% to 6% annually to price appreciation returns. Today's S&P 500 dividend yield is approximately 1.3%, lower than historical averages. Reinvesting dividends automatically in index funds captures this yield as additional shares.

How long do S&P 500 recoveries typically take?

Recovery times vary enormously: the 2020 COVID crash recovered in six months. The 2007 to 2009 financial crisis took 5.5 years to break even. The 2000 to 2002 dot-com crash took seven years. The 1929 to 1932 crash took 25 years at price return only, but with dividends reinvested it took approximately seven years. Investors who needed their money during the recovery period experienced real permanent losses. This is why time horizon matters enormously for equity investment.

What is the S&P 500 real return after inflation?

The historical real return (after inflation) of the S&P 500 including dividends is approximately 6.5% to 7% per year. At 2.5% current inflation expectations and the 10% nominal historical average, the real return is approximately 7.3%. At 7% nominal with 2.5% inflation, the real return is 4.4%. For long-term planning, the real return shows how purchasing power grows, which is ultimately what retirement wealth is about.

S&P 500 Historical Returns: What the Data Really Shows

The S&P 500 long-run average return of approximately 10% per year is the most cited number in investing and one of the most commonly misunderstood. It is a nominal average before inflation, before taxes, and before fees. It includes dividends reinvested, which add 1.5% to 2% annually to total return. It is an arithmetic average that does not reflect the actual compound growth rate experienced by investors. And it is a backward-looking historical statistic from a century with conditions that may not fully repeat. This guide breaks down S&P 500 historical returns decade by decade, shows the full picture including the worst periods that are often omitted from marketing materials, explains what a realistic return assumption looks like for 2025 investment projections, and gives you the specific numbers to use in your investment calculator.

S&P 500 Returns by Decade

S&P 500 total and annualized returns by decade with best and worst single year (total return including dividends)

Decade	Total Return	Annualized Return	Best Single Year	Worst Single Year
1930s	+155%	~10%	1935: +47%	1931: -43%
1940s	+186%	~11%	1945: +36%	1941: -12%
1950s	+487%	~20%	1954: +53%	1957: -11%
1960s	+112%	~8%	1961: +27%	1966: -10%
1970s	+77%	~6%	1975: +37%	1974: -26%
1980s	+432%	~18%	1985: +32%	1981: -5%
1990s	+432%	~18%	1997: +33%	1990: -3%
2000s	-9%	~-1%	2003: +29%	2008: -37%
2010s	+257%	~14%	2013: +32%	2018: -4%
2020s (2020-2024)	+97%	~15%	2021: +29%	2022: -18%

The Long-Run Average: What 10% Actually Means

The commonly cited 10% or 10.2% S&P 500 average return is the arithmetic average of annual returns over approximately 100 years. The CAGR (compound annual growth rate), which is the number most relevant to investors, is slightly lower at approximately 9.8% including dividends. After adjusting for inflation of approximately 3% historically, the real CAGR is approximately 6.5% to 7%. After modern low-cost index fund fees of 0.03% to 0.05%, the real after-fee after-inflation CAGR is approximately 6.4% to 6.9%. This is the number to use for inflation-adjusted projections.

📈The Lost Decade: When 10% Averages Do Not Help

The 2000s produced approximately -1% annualized S&P 500 returns for the decade. An investor who put $100,000 into the S&P 500 in January 2000 had approximately $91,000 in December 2009, not $260,000 that a 10% average would have projected. This lost decade is not unique: similar 10-year periods of flat or negative returns have occurred multiple times. This is why having a sufficiently long time horizon and not relying on any specific 10-year outcome is essential.

Major S&P 500 Drawdowns and Recovery Times

Major S&P 500 bear markets, decline magnitude, and recovery timeline

Bear Market	Peak to Trough Decline	Time to Trough	Recovery to Breakeven	Key Cause
1929 to 1932	-86%	34 months	25 years (with dividends, 7 years)	Great Depression
1973 to 1974	-48%	21 months	7 years	Oil crisis and inflation
1987 Black Monday	-34%	3 months	2 years	Portfolio insurance/program trading
2000 to 2002	-49%	31 months	7 years	Dot-com bubble bust
2007 to 2009	-56%	17 months	5.5 years	Financial crisis/housing collapse
2020 COVID crash	-34%	1 month	6 months	Pandemic economic shutdown
2022 bear market	-25%	12 months	1.5 years	Fed rate hike cycle

Forward Return Expectations for 2025

U.S. stock valuations entering 2025 are elevated by historical standards. The cyclically adjusted price-to-earnings ratio (CAPE or Shiller P/E) of approximately 35 to 37 is well above the historical average of 16 to 17. Multiple academic studies have shown that the CAPE ratio has meaningful predictive power for 10-year forward returns: higher CAPE generally predicts lower forward returns. With CAPE at current levels, forward 10-year U.S. equity returns are estimated at 4% to 7% by most valuation-based models.

What Return Rate to Use in 2025

For a 30-year retirement projection: 7% nominal is reasonable, combining historical long-run average with modest conservatism for current valuations
For a 10-year goal: 5% to 6% is more appropriate given elevated current valuations and shorter forward horizon
For stress testing: always run a 5% scenario to see the downside case
For inflation-adjusted projections: use 4.5% to 5% real return (after 2.5% inflation)
International stocks (developed markets): use 7% to 8% given lower current valuations
Global diversified portfolio: 7% as the base case captures U.S. and international blend

💡The International Diversification Opportunity

International developed market stocks (Europe, Japan, Australia) trade at CAPE ratios of 10 to 15 in 2025, significantly below the U.S. at 35 to 37. Lower valuations suggest higher prospective returns. Vanguard Total International ETF (VXUS) provides exposure to 8,000+ non-U.S. stocks. A global portfolio including 30% to 40% international allocation potentially improves forward return prospects while adding geographic diversification.

Project Returns at Different Rate Assumptions

Run the same projection at 5%, 7%, and 9% to see your range of outcomes.

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S&P 500 Historical Returns: What the Data Really Shows

S&P 500 Returns by Decade

The Long-Run Average: What 10% Actually Means

Major S&P 500 Drawdowns and Recovery Times

Forward Return Expectations for 2025

What Return Rate to Use in 2025

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Frequently Asked Questions

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