What if you'd held OKE?
A $1,000 investment in ONEOK, Inc. (OKE) at the month-end close of 1980-10 would be worth $170,533 at the close of 2026-08 — +16953.3% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $60,469.
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 | $731 | -26.9% |
| 1982 | $705 | -3.6% |
| 1983 | $808 | +14.7% |
| 1984 | $765 | -5.3% |
| 1985 | $880 | +15.0% |
| 1986 | $1,004 | +14.1% |
| 1987 | $541 | -46.1% |
| 1988 | $632 | +16.7% |
| 1989 | $1,126 | +78.3% |
| 1990 | $1,102 | -2.2% |
| 1991 | $1,338 | +21.5% |
| 1992 | $1,549 | +15.7% |
| 1993 | $1,675 | +8.1% |
| 1994 | $1,699 | +1.5% |
| 1995 | $2,282 | +34.3% |
| 1996 | $3,139 | +37.6% |
| 1997 | $4,387 | +39.8% |
| 1998 | $4,060 | -7.5% |
| 1999 | $2,944 | -27.5% |
| 2000 | $5,885 | +99.9% |
| 2001 | $4,502 | -23.5% |
| 2002 | $5,009 | +11.3% |
| 2003 | $5,970 | +19.2% |
| 2004 | $7,985 | +33.8% |
| 2005 | $7,759 | -2.8% |
| 2006 | $13,017 | +67.8% |
| 2007 | $13,919 | +6.9% |
| 2008 | $9,410 | -32.4% |
| 2009 | $15,179 | +61.3% |
| 2010 | $19,624 | +29.3% |
| 2011 | $31,650 | +61.3% |
| 2012 | $32,124 | +1.5% |
| 2013 | $48,077 | +49.7% |
| 2014 | $45,513 | -5.3% |
| 2015 | $23,932 | -47.4% |
| 2016 | $59,741 | +149.6% |
| 2017 | $58,477 | -2.1% |
| 2018 | $62,143 | +6.3% |
| 2019 | $91,823 | +47.8% |
| 2020 | $51,929 | -43.4% |
| 2021 | $85,511 | +64.7% |
| 2022 | $101,637 | +18.9% |
| 2023 | $115,062 | +13.2% |
| 2024 | $172,711 | +50.1% |
| 2025 | $133,090 | -22.9% |
| 2026 | $180,470 | +35.6% |
Best and worst month-end to buy
The best single month-end close to have bought OKE was 1988-03 ($0.18): $1,000 then is $533,389 today. The worst was 2024-11 ($104): $1,000 then is $924.
FAQ
What would $1,000 in OKE be worth today?
A $1,000 investment in ONEOK, Inc. (OKE) at the start of 1980 would be worth about $170,533 today, a total return of +16953.3%. Dividends are reinvested in these figures.
What were the best and worst years for OKE?
ONEOK, Inc. (OKE)'s strongest calendar year since 1980 was 2016, a +149.6% return — $1,000 held through that year became about $2,496 by year-end. Its weakest year was 2015, at -47.4%.
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 OKE have grown?
Investing $100 at the end of every month since 1980-10 would have grown to about $4.16M on $55,100 invested.
Did OKE beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $60,469. OKE beat the S&P 500 by +182.0% in total return.
Is this investment advice?
No. What If I'd Held is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
ONEOK, Inc. (OKE) historical total-return data from 1980-10 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. What If I'd Held is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via Yahoo Finance. As of 2026-08. Not financial advice.