What if you'd held DAIO?
A $1,000 investment in Data I/O Corporation (DAIO) at the month-end close of 1989-01 would be worth $617 at the close of 2026-08 — -38.3% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $25,912.
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 1989
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1989 | $1,000 | — |
| 1990 | $643 | -35.7% |
| 1991 | $1,500 | +133.3% |
| 1992 | $1,357 | -9.5% |
| 1993 | $697 | -48.7% |
| 1994 | $1,571 | +125.6% |
| 1995 | $1,964 | +25.0% |
| 1996 | $1,500 | -23.6% |
| 1997 | $1,750 | +16.7% |
| 1998 | $491 | -71.9% |
| 1999 | $786 | +60.0% |
| 2000 | $589 | -25.0% |
| 2001 | $440 | -25.4% |
| 2002 | $260 | -40.9% |
| 2003 | $1,011 | +289.0% |
| 2004 | $849 | -16.1% |
| 2005 | $1,200 | +41.4% |
| 2006 | $1,029 | -14.3% |
| 2007 | $1,871 | +81.9% |
| 2008 | $686 | -63.4% |
| 2009 | $1,274 | +85.8% |
| 2010 | $1,640 | +28.7% |
| 2011 | $1,069 | -34.8% |
| 2012 | $471 | -55.9% |
| 2013 | $734 | +55.8% |
| 2014 | $966 | +31.5% |
| 2015 | $720 | -25.4% |
| 2016 | $1,194 | +65.9% |
| 2017 | $3,440 | +188.0% |
| 2018 | $1,429 | -58.5% |
| 2019 | $1,214 | -15.0% |
| 2020 | $1,177 | -3.1% |
| 2021 | $1,317 | +11.9% |
| 2022 | $1,134 | -13.9% |
| 2023 | $840 | -25.9% |
| 2024 | $791 | -5.8% |
| 2025 | $906 | +14.4% |
| 2026 | $823 | -9.1% |
Best and worst month-end to buy
The best single month-end close to have bought DAIO was 2002-07 ($0.70): $1,000 then is $4,114 today. The worst was 2017-11 ($13.06): $1,000 then is $221.
FAQ
What would $1,000 in DAIO be worth today?
A $1,000 investment in Data I/O Corporation (DAIO) at the start of 1989 would be worth about $617 today, a total return of -38.3%. Dividends are reinvested in these figures.
What were the best and worst years for DAIO?
Data I/O Corporation (DAIO)'s strongest calendar year since 1989 was 2003, a +289.0% return — $1,000 held through that year became about $3,890 by year-end. Its weakest year was 1998, at -71.9%.
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 DAIO have grown?
Investing $100 at the end of every month since 1989-01 would have grown to about $40,839 on $45,200 invested.
Did DAIO beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $25,912. DAIO trailed the S&P 500 by +97.6% 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
Data I/O Corporation (DAIO) historical total-return data from 1989-01 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.