What if you'd held PEO?
A $1,000 investment in Adams Natural Resources Fund, Inc. (PEO) at the month-end close of 1980-03 would be worth $24,480 at the close of 2026-08 — +2348.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $75,502.
Your scenario
Result
If you'd bought $1,000 at the start of each year
Value of $1,000 invested on January 1 of each year, held to 2026-08, dividends included.
Every year, $1,000 from 1980
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1980 | $1,000 | — |
| 1981 | $676 | -32.4% |
| 1982 | $547 | -19.1% |
| 1983 | $563 | +3.1% |
| 1984 | $522 | -7.3% |
| 1985 | $522 | 0.0% |
| 1986 | $566 | +8.4% |
| 1987 | $470 | -16.9% |
| 1988 | $509 | +8.3% |
| 1989 | $721 | +41.7% |
| 1990 | $732 | +1.4% |
| 1991 | $821 | +12.1% |
| 1992 | $824 | +0.4% |
| 1993 | $966 | +17.3% |
| 1994 | $914 | -5.5% |
| 1995 | $1,106 | +21.0% |
| 1996 | $1,453 | +31.4% |
| 1997 | $1,622 | +11.6% |
| 1998 | $1,458 | -10.1% |
| 1999 | $1,644 | +12.8% |
| 2000 | $2,231 | +35.7% |
| 2001 | $2,035 | -8.8% |
| 2002 | $1,757 | -13.7% |
| 2003 | $2,302 | +31.0% |
| 2004 | $2,634 | +14.4% |
| 2005 | $3,376 | +28.2% |
| 2006 | $3,900 | +15.5% |
| 2007 | $5,050 | +29.5% |
| 2008 | $2,899 | -42.6% |
| 2009 | $3,762 | +29.8% |
| 2010 | $4,511 | +19.9% |
| 2011 | $4,407 | -2.3% |
| 2012 | $4,596 | +4.3% |
| 2013 | $5,634 | +22.6% |
| 2014 | $5,261 | -6.6% |
| 2015 | $3,995 | -24.1% |
| 2016 | $4,818 | +20.6% |
| 2017 | $5,042 | +4.6% |
| 2018 | $3,959 | -21.5% |
| 2019 | $4,789 | +21.0% |
| 2020 | $3,452 | -27.9% |
| 2021 | $5,208 | +50.9% |
| 2022 | $7,383 | +41.8% |
| 2023 | $7,450 | +0.9% |
| 2024 | $8,461 | +13.6% |
| 2025 | $9,306 | +10.0% |
| 2026 | $12,835 | +37.9% |
Best and worst month-end to buy
The best single month-end close to have bought PEO was 1986-01 ($1.00): $1,000 then is $28,278 today. The worst was 2026-08 ($28.25): $1,000 then is $1,000.
FAQ
What would $1,000 in PEO be worth today?
A $1,000 investment in Adams Natural Resources Fund, Inc. (PEO) at the start of 1980 would be worth about $24,480 today, a total return of +2348.0%. Dividends are reinvested in these figures.
What were the best and worst years for PEO?
Adams Natural Resources Fund, Inc. (PEO)'s strongest calendar year since 1980 was 2021, a +50.9% return — $1,000 held through that year became about $1,509 by year-end. Its weakest year was 2008, at -42.6%.
Does the calculator include dividends and splits?
Yes where available. Prices are adjusted for both stock splits and reinvested dividends (total return), the same measure brokerages use.
How much would $100 per month in PEO have grown?
Investing $100 at the end of every month since 1980-03 would have grown to about $516,487 on $55,800 invested.
Did PEO beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $75,502. PEO trailed the S&P 500 by +67.6% in total return.
Is this investment advice?
No. Wall Street Regrets is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
Adams Natural Resources Fund, Inc. (PEO) historical total-return data from 1980-03 to 2026-08, reduced to month-end closes for the tables above.
Returns use adjusted close prices from Yahoo Finance historical data — adjusted for stock splits and reinvested dividends — the same convention used by major brokerages. A "year" scenario invests $1,000 at the prior December's month-end close and values it at the latest available month-end close. Non-USD amounts are converted at historical month-end exchange rates (Yahoo Finance): to USD on the buy date and back to your currency at the latest rate, so the return reflects the currency move as well as the asset.
Month-end resolution means intra-month extremes are not captured in tables; the calculator uses exact trading-day closes where daily data is available. Figures ignore taxes, fees, and the currency effects of non-USD listings. History is not a forecast. Wall Street Regrets is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via Yahoo Finance. As of 2026-08. Not financial advice.