What if you'd held OII?
A $1,000 investment in Oceaneering International, Inc. (OII) at the month-end close of 1975-10 would be worth $20,080 at the close of 2026-08 — +1908.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $86,568.
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 1975
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1975 | $1,000 | — |
| 1976 | $594 | -40.6% |
| 1977 | $730 | +22.8% |
| 1978 | $568 | -22.3% |
| 1979 | $594 | +4.7% |
| 1980 | $2,203 | +270.6% |
| 1981 | $2,027 | -8.0% |
| 1982 | $1,284 | -36.7% |
| 1983 | $676 | -47.4% |
| 1984 | $392 | -42.0% |
| 1985 | $209 | -46.6% |
| 1986 | $118 | -43.5% |
| 1987 | $297 | +151.2% |
| 1988 | $291 | -2.3% |
| 1989 | $1,162 | +300.0% |
| 1990 | $1,271 | +9.3% |
| 1991 | $1,000 | -21.3% |
| 1992 | $1,392 | +39.2% |
| 1993 | $1,473 | +5.8% |
| 1994 | $1,108 | -24.8% |
| 1995 | $1,392 | +25.6% |
| 1996 | $1,716 | +23.3% |
| 1997 | $2,136 | +24.4% |
| 1998 | $1,622 | -24.1% |
| 1999 | $1,615 | -0.4% |
| 2000 | $2,102 | +30.1% |
| 2001 | $2,391 | +13.8% |
| 2002 | $2,675 | +11.8% |
| 2003 | $3,027 | +13.2% |
| 2004 | $4,035 | +33.3% |
| 2005 | $5,382 | +33.4% |
| 2006 | $8,585 | +59.5% |
| 2007 | $14,564 | +69.6% |
| 2008 | $6,301 | -56.7% |
| 2009 | $12,654 | +100.8% |
| 2010 | $15,922 | +25.8% |
| 2011 | $20,132 | +26.4% |
| 2012 | $23,784 | +18.1% |
| 2013 | $35,283 | +48.3% |
| 2014 | $26,691 | -24.4% |
| 2015 | $17,437 | -34.7% |
| 2016 | $13,561 | -22.2% |
| 2017 | $10,342 | -23.7% |
| 2018 | $5,920 | -42.8% |
| 2019 | $7,295 | +23.2% |
| 2020 | $3,889 | -46.7% |
| 2021 | $5,533 | +42.3% |
| 2022 | $8,557 | +54.6% |
| 2023 | $10,411 | +21.7% |
| 2024 | $12,759 | +22.6% |
| 2025 | $11,756 | -7.9% |
| 2026 | $25,778 | +119.3% |
Best and worst month-end to buy
The best single month-end close to have bought OII was 1986-04 ($0.22): $1,000 then is $238,416 today. The worst was 2013-10 ($78.29): $1,000 then is $673.
FAQ
What would $1,000 in OII be worth today?
A $1,000 investment in Oceaneering International, Inc. (OII) at the start of 1975 would be worth about $20,080 today, a total return of +1908.0%. Dividends are reinvested in these figures.
What were the best and worst years for OII?
Oceaneering International, Inc. (OII)'s strongest calendar year since 1975 was 1989, a +300.0% return — $1,000 held through that year became about $4,000 by year-end. Its weakest year was 2008, at -56.7%.
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 OII have grown?
Investing $100 at the end of every month since 1975-10 would have grown to about $1.31M on $61,100 invested.
Did OII beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $86,568. OII trailed the S&P 500 by +76.8% 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
Oceaneering International, Inc. (OII) historical total-return data from 1975-10 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. 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.