What if you'd held CSPI?
A $1,000 investment in CSP Inc. (CSPI) at the month-end close of 1982-01 would be worth $3,929 at the close of 2026-08 — +292.9% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $64,020.
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 1982
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1982 | $1,000 | — |
| 1983 | $738 | -26.2% |
| 1984 | $385 | -47.9% |
| 1985 | $723 | +88.0% |
| 1986 | $354 | -51.1% |
| 1987 | $323 | -8.7% |
| 1988 | $385 | +19.0% |
| 1989 | $354 | -8.0% |
| 1990 | $323 | -8.7% |
| 1991 | $500 | +54.8% |
| 1992 | $646 | +29.2% |
| 1993 | $523 | -19.1% |
| 1994 | $461 | -11.8% |
| 1995 | $554 | +20.0% |
| 1996 | $508 | -8.3% |
| 1997 | $492 | -3.0% |
| 1998 | $591 | +20.1% |
| 1999 | $624 | +5.6% |
| 2000 | $246 | -60.6% |
| 2001 | $291 | +18.4% |
| 2002 | $211 | -27.3% |
| 2003 | $506 | +139.1% |
| 2004 | $851 | +68.3% |
| 2005 | $577 | -32.1% |
| 2006 | $670 | +16.0% |
| 2007 | $548 | -18.2% |
| 2008 | $238 | -56.5% |
| 2009 | $300 | +25.8% |
| 2010 | $303 | +1.1% |
| 2011 | $264 | -12.9% |
| 2012 | $571 | +116.5% |
| 2013 | $752 | +31.7% |
| 2014 | $720 | -4.3% |
| 2015 | $730 | +1.4% |
| 2016 | $1,166 | +59.7% |
| 2017 | $1,835 | +57.4% |
| 2018 | $1,175 | -36.0% |
| 2019 | $1,666 | +41.8% |
| 2020 | $998 | -40.1% |
| 2021 | $1,134 | +13.7% |
| 2022 | $1,226 | +8.1% |
| 2023 | $2,560 | +108.9% |
| 2024 | $4,252 | +66.1% |
| 2025 | $3,335 | -21.6% |
| 2026 | $2,025 | -39.3% |
Best and worst month-end to buy
The best single month-end close to have bought CSPI was 2002-10 ($0.76): $1,000 then is $9,974 today. The worst was 2024-02 ($23.84): $1,000 then is $316.
FAQ
What would $1,000 in CSPI be worth today?
A $1,000 investment in CSP Inc. (CSPI) at the start of 1982 would be worth about $3,929 today, a total return of +292.9%. Dividends are reinvested in these figures.
What were the best and worst years for CSPI?
CSP Inc. (CSPI)'s strongest calendar year since 1982 was 2003, a +139.1% return — $1,000 held through that year became about $2,391 by year-end. Its weakest year was 2000, at -60.6%.
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 CSPI have grown?
Investing $100 at the end of every month since 1982-01 would have grown to about $202,031 on $53,600 invested.
Did CSPI beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $64,020. CSPI trailed the S&P 500 by +93.9% 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
CSP Inc. (CSPI) historical total-return data from 1982-01 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.