If you invested $500 in the S&P 500 in 1970
$500 invested in the S&P 500 at the start of 1970 — with dividends reinvested and held through end of 2024 — would be worth $144,565 nominal, or $16,896 in 1970 purchasing power. That's 10.85% annualized nominal return, or 6.61% real return, over 55 years.
How this was computed
We take the S&P 500 total return series (price change plus dividends reinvested at year-end) from start of 1970 through end of 2024 — a 55-year window — and apply the actual year-by-year return to a starting balance of $500. The nominal figure of $144,565 reflects the market value in 2024 dollars. The real figure of $16,896 strips out cumulative CPI-U inflation over the same window, expressing the end value in terms of 1970 purchasing power.
Total multiplier: 289.13× nominal (real: 33.79×). Cumulative CPI-U inflation over the window: 8.56× — meaning one 1970 dollar buys 0.12 2024 dollars of goods.
What this scenario captures
Every rolling multi-decade window contains its own crisis and recovery. The 55-year window starting 1970 includes the market events of that era — bull runs, drawdowns, monetary regime changes, and inflation cycles — all baked into the compounded number. Long-run S&P 500 real return since 1928 has averaged roughly 6.9%; the 6.61% realized in this specific window trailed that average.
What the calculation excludes
- ETF or mutual fund expense ratios (VOO 0.03%, SPY 0.09%, IVV 0.03%)
- Taxes on dividends (typically 15-20% qualified rate) — inside a Roth IRA or taxable-account brokerage account with reinvested dividends the drag matters
- Bid/ask spread and transaction costs
- Behavioral realities — real investors rarely hold through the worst drawdowns without selling
Try a different scenario
This page precomputes the S&P 500 outcome for $500 starting in 1970. For a custom scenario, use our interactive tool:
Historical returns are not indicative of future results. Data: Damodaran (NYU Stern), Shiller CAPE, BLS CPI-U. See our sources, editorial standards, and disclaimer.