What if you'd held PDEX?
A $1,000 investment in Pro-Dex, Inc. (PDEX) at the month-end close of 1986-08 would be worth $4,250 at the close of 2026-08 — +325.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $30,475.
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 1986
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1986 | $1,000 | — |
| 1987 | $357 | -64.3% |
| 1988 | $143 | -60.0% |
| 1989 | $71.43 | -50.0% |
| 1990 | $179 | +150.0% |
| 1991 | $393 | +120.0% |
| 1992 | $589 | +50.0% |
| 1993 | $500 | -15.2% |
| 1994 | $589 | +17.9% |
| 1995 | $1,000 | +69.7% |
| 1996 | $679 | -32.1% |
| 1997 | $732 | +7.9% |
| 1998 | $464 | -36.6% |
| 1999 | $402 | -13.5% |
| 2000 | $821 | +104.4% |
| 2001 | $234 | -71.5% |
| 2002 | $131 | -43.9% |
| 2003 | $897 | +582.6% |
| 2004 | $791 | -11.8% |
| 2005 | $700 | -11.6% |
| 2006 | $414 | -40.8% |
| 2007 | $414 | 0.0% |
| 2008 | $123 | -70.3% |
| 2009 | $146 | +18.6% |
| 2010 | $191 | +31.4% |
| 2011 | $234 | +22.4% |
| 2012 | $195 | -16.7% |
| 2013 | $231 | +18.5% |
| 2014 | $235 | +1.6% |
| 2015 | $230 | -2.0% |
| 2016 | $448 | +94.2% |
| 2017 | $648 | +44.7% |
| 2018 | $1,150 | +77.6% |
| 2019 | $1,671 | +45.3% |
| 2020 | $2,950 | +76.5% |
| 2021 | $2,210 | -25.1% |
| 2022 | $1,514 | -31.5% |
| 2023 | $1,669 | +10.2% |
| 2024 | $4,452 | +166.8% |
| 2025 | $3,665 | -17.7% |
| 2026 | $6,375 | +74.0% |
Best and worst month-end to buy
The best single month-end close to have bought PDEX was 1989-08 ($0.75): $1,000 then is $89,253 today. The worst was 2026-08 ($66.94): $1,000 then is $1,000.
FAQ
What would $1,000 in PDEX be worth today?
A $1,000 investment in Pro-Dex, Inc. (PDEX) at the start of 1986 would be worth about $4,250 today, a total return of +325.0%. Dividends are reinvested in these figures.
What were the best and worst years for PDEX?
Pro-Dex, Inc. (PDEX)'s strongest calendar year since 1986 was 2003, a +582.6% return — $1,000 held through that year became about $6,826 by year-end. Its weakest year was 2001, at -71.5%.
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 PDEX have grown?
Investing $100 at the end of every month since 1986-08 would have grown to about $851,891 on $48,100 invested.
Did PDEX beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $30,475. PDEX trailed the S&P 500 by +86.1% 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
Pro-Dex, Inc. (PDEX) historical total-return data from 1986-08 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.