What Returns Should You Actually Expect From Your Investments?
The S&P 500 has averaged about 10% per year nominally over the past 100 years — but only about 7% after inflation. For financial planning, use 6%–7% real returns as your baseline assumption. Recent bull market returns above this level reflect valuation expansion, not a new normal. Asset allocation between stocks, bonds, and cash will determine your portfolio's actual return more than any individual stock you pick.
Introduction
One of the most dangerous mistakes investors make is building their retirement plan on unrealistic return assumptions. In a decade of strong markets, it is tempting to extrapolate recent performance and plan for 12–14% annual returns. The historical record tells a more sobering story — and the difference between 7% and 12% compounded over 30 years is the difference between a comfortable retirement and running out of money. Setting realistic expectations is not pessimism; it is the foundation of sound planning.
What the Historical Record Shows
S&P 500 nominal returns (before inflation): approximately 10% per year, averaged over the past 100 years.
S&P 500 real returns (after subtracting inflation): approximately 7% per year.
These are long-term averages and mask enormous year-to-year variability:
- The index has returned positive results in roughly 75% of calendar years
- It has declined 20% or more (a bear market) multiple times per decade
- Individual years range from -38% (2008) to +34% (1995, 2013, 2019)
No year produces exactly 10%. The average is meaningful only over long periods — 15 years or more — which is why short investment horizons carry more risk.
Nominal vs Real: Why the Distinction Matters
If your portfolio earns 10% and inflation runs at 3%, your real return is 7%. Your dollar balance grows, but your purchasing power grows more slowly. For retirement planning, real returns are the honest measure — they tell you how much more stuff your portfolio can actually buy, not just how many dollars you have.
Always ask: "Is this return before or after inflation?" Financial plans built on nominal return assumptions but spending in real dollars will underestimate how much you need to save.
How Asset Allocation Drives Returns
Your expected return is not determined by which individual stocks you pick — it is overwhelmingly determined by how you allocate across asset classes:
Stocks (equities): Highest expected return, highest volatility. U.S. large-cap stocks: ~7% real historically. International developed markets: ~5%–6% real. Emerging markets: ~6%–8% real (with higher risk).
Bonds (fixed income): Lower expected return, lower volatility. U.S. Treasuries and investment-grade corporate bonds: ~2%–3% real historically.
Cash (money market, savings): Near-zero real return over long periods. High-yield savings accounts can match inflation temporarily but not consistently outpace it.
Typical portfolio blends:
- 100% stocks: ~7% real
- 80/20 stocks/bonds: ~6% real
- 60/40 stocks/bonds: ~5%–5.5% real
- 40/60 stocks/bonds: ~4%–4.5% real
The further you are from retirement, the more you can hold in stocks and absorb short-term volatility for higher long-term returns. As retirement approaches, shifting toward bonds reduces risk.
Project Returns at Your Allocation
Enter your expected return and timeline to see what your portfolio could grow to.
Why Recent Returns Can Be Misleading
The decade from 2010 to 2021 was exceptional. The S&P 500 averaged approximately 14% per year — well above the historical norm. This was driven by two factors: genuine earnings growth, and dramatic expansion of price-to-earnings (P/E) ratios as interest rates fell to historic lows.
When P/E ratios expand, stocks become more expensive relative to earnings. This is a one-time tailwind that cannot repeat indefinitely. As rates normalize or rise, P/E ratios tend to compress, acting as a headwind on returns even if earnings grow.
The lesson: do not plan on 12–14% returns simply because that is what happened recently. Academic consensus and forward-looking models from Vanguard, BlackRock, and Schwab generally project U.S. stock returns of 7%–9% nominal (4%–6% real) over the next decade — below the recent historical average.
Key Takeaways
- S&P 500 long-term average: ~10% nominal, ~7% real (inflation-adjusted)
- Use 6%–7% real return as a conservative, historically grounded planning assumption
- Your asset allocation (stocks vs bonds vs cash) drives returns more than stock selection
- 60/40 stock/bond portfolio: expect ~5%–5.5% real over long periods
- Recent bull market returns of 12%–14% reflected valuation expansion — not a new sustainable baseline
What is a realistic expected return for a stock market investment?▾
For long-term planning, most financial planners use 6%–7% per year as a real (inflation-adjusted) return for a broadly diversified U.S. stock portfolio. The S&P 500's nominal average has been roughly 10% annually over the past century, but after subtracting 3% average inflation, the real return is closer to 7%. Bonds have historically returned 2%–3% real, making a balanced portfolio of 60/40 stocks/bonds roughly 5%–5.5% real.
Why shouldn't I just assume the recent bull market returns will continue?▾
Recent strong returns (2010–2021 averaged roughly 14% annually for the S&P 500) reflect both genuine earnings growth and significant expansion of price-to-earnings multiples — valuations rising. Valuation expansion is not sustainably repeatable; earnings growth drives long-term returns. Planning for 10%+ annual returns using recent history as your baseline is likely to result in undersaving for retirement. Use 6%–7% real as a conservative, historically grounded assumption.