Time machine · S&P 500 · 2015–2026
If you had invested $1,000 in the S&P 500 in 2015
Month by month, in dollars of each date and in today's dollars, with the worst fall on the way and the same money in other assets.
That is what $1,000 put in the S&P 500 in January 2015, when the index averaged 2,028 points, would be worth by October 2026. Prices rose by 43.7% in that time, so its purchasing power grew 3.23 times: 10.5% a year after inflation, 13.9% before.
The same money elsewhereOver the same years it would have become $1,040 in Treasuries, $3,280 in gold, $356,000 in bitcoin (in today's dollars). Kept as cash, its purchasing power fell by 30.4%.
On the way it fell 19.3%From $2,620 in Dec 2021 to $2,120 in Oct 2022, in dollars of those dates.
Monthly averagesShiller's S&P 500 prices are averages of daily closes in each month, so the start and end values are not exact closing prices; dividends are reinvested every month.
No taxes or feesThe numbers ignore taxes, fees, commissions and spreads: a real investor would have kept somewhat less.
Try another amount, dates or assets in the time machine
The same $1,000 in other assets, Jan 2015 – Oct 2026
| Asset | Worth in Oct 2026 | Purchasing power | A year, real | Worst fall |
|---|---|---|---|---|
| S&P 500 with dividends | $4,640 | ×3.23 | 10.5% | −19.3% |
| US 10-year Treasuries | $1,040 | ×0.72 | −2.8% | −25.2% |
| Gold | $3,280 | ×2.28 | 7.3% | −18.9% |
| Bitcoin | $356,000 | ×248 | 59.9% | −75.5% |
| Cash under the mattress | $1,000 | ×0.7 | −3.0% | 0.0% |
Lump sum, in today's dollars; real means after inflation. Source: Robert J. Shiller (S&P 500, bonds, inflation) · Source: World Bank (gold, CC BY 4.0) · Data: Coin Metrics (bitcoin, ether; CC BY-NC 4.0)
Year by year
| Date | Value | In today's dollars | Change |
|---|---|---|---|
| Jan 2015 | $1,000 | $1,440 | |
| Jan 2016 | $966 | $1,370 | −3.4% |
| Jan 2017 | $1,170 | $1,620 | 21.1% |
| Jan 2018 | $1,460 | $1,980 | 25.0% |
| Jan 2019 | $1,390 | $1,860 | −4.7% |
| Jan 2020 | $1,780 | $2,320 | 28.1% |
| Jan 2021 | $2,100 | $2,700 | 17.9% |
| Jan 2022 | $2,570 | $3,070 | 22.2% |
| Jan 2023 | $2,260 | $2,540 | −12.0% |
| Jan 2024 | $2,790 | $3,040 | 23.5% |
| Jan 2025 | $3,520 | $3,720 | 25.8% |
| Jan 2026 | $4,120 | $4,260 | 17.3% |
| Oct 2026 | $4,640 | $4,640 | 12.4% |
More scenarios
S&P 500 in other years: 1950 · 1970 · 1980 · 1990 · 2000 · 2005 · 2008 · 2010 · 2015 · 2020
2015 in other assets: Bitcoin · Ether
The calculator and all scenarios · Model portfolios of stocks and bonds
How it is calculated
- What is counted. S&P 500: the index with dividends reinvested every month (Robert Shiller's data; before 1957 a reconstruction, see the S&P 500 page). Treasuries: a 10-year US government bond bought new every month, coupons reinvested (Shiller's bond returns). Gold: the World Bank's monthly average price. Bitcoin and ether: the Coin Metrics price on the last day of each month. Cash: dollars kept at home, earning nothing.
- Monthly steps. Money goes in at a month's value and the result is read at the end month's value. Shiller's S&P 500 prices, the bond yields and gold are monthly averages, which smooth out moves inside a month: the real highs and lows were somewhat more extreme.
- Worst fall is the largest drop from a high to a later low within the period, using the monthly values; “real” also counts inflation. Falls inside a month are not seen.
- Today's dollars are Oct 2026 dollars: a value is multiplied by the rise in US consumer prices (CPI-U; before 1913 the Warren and Pearson reconstruction) from its date to Oct 2026. “Real” returns are after this inflation.
- No taxes, fees or spreads. Real investors paid commissions, fund fees, and taxes on dividends, coupons and gains, so they kept less than shown here.
- Preliminary data. S&P 500 dividends from July 2026 on are estimated from the last known value. Shiller's notes on the latest month: Oct price is Oct 2nd close; Sept/Oct CPI estimated; Oct GS10 is Oct 2nd value.