What if you'd held AMS?
A $1,000 investment in American Shared Hospital Services (AMS) at the month-end close of 1984-07 would be worth $350 at the close of 2026-08 — -65.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $51,161.
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 1984
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1984 | $1,000 | — |
| 1985 | $750 | -25.0% |
| 1986 | $333 | -55.6% |
| 1987 | $1,167 | +250.1% |
| 1988 | $1,271 | +8.9% |
| 1989 | $563 | -55.7% |
| 1990 | $188 | -66.7% |
| 1991 | $833 | +344.4% |
| 1992 | $500 | -40.0% |
| 1993 | $438 | -12.5% |
| 1994 | $83.26 | -81.0% |
| 1995 | $219 | +162.7% |
| 1996 | $302 | +38.1% |
| 1997 | $292 | -3.4% |
| 1998 | $198 | -32.1% |
| 1999 | $708 | +257.7% |
| 2000 | $375 | -47.1% |
| 2001 | $523 | +39.6% |
| 2002 | $739 | +41.2% |
| 2003 | $1,131 | +52.9% |
| 2004 | $1,156 | +2.2% |
| 2005 | $1,258 | +8.9% |
| 2006 | $1,372 | +9.1% |
| 2007 | $432 | -68.5% |
| 2008 | $220 | -49.0% |
| 2009 | $619 | +181.0% |
| 2010 | $591 | -4.4% |
| 2011 | $558 | -5.7% |
| 2012 | $573 | +2.6% |
| 2013 | $581 | +1.5% |
| 2014 | $589 | +1.4% |
| 2015 | $386 | -34.5% |
| 2016 | $703 | +82.1% |
| 2017 | $545 | -22.4% |
| 2018 | $499 | -8.5% |
| 2019 | $512 | +2.5% |
| 2020 | $466 | -9.0% |
| 2021 | $497 | +6.8% |
| 2022 | $615 | +23.6% |
| 2023 | $499 | -18.8% |
| 2024 | $669 | +34.0% |
| 2025 | $443 | -33.9% |
| 2026 | $321 | -27.5% |
Best and worst month-end to buy
The best single month-end close to have bought AMS was 1994-08 ($0.25): $1,000 then is $6,169 today. The worst was 1988-06 ($8.94): $1,000 then is $171.
FAQ
What would $1,000 in AMS be worth today?
A $1,000 investment in American Shared Hospital Services (AMS) at the start of 1984 would be worth about $350 today, a total return of -65.0%. Dividends are reinvested in these figures.
What were the best and worst years for AMS?
American Shared Hospital Services (AMS)'s strongest calendar year since 1984 was 1991, a +344.4% return — $1,000 held through that year became about $4,444 by year-end. Its weakest year was 1994, at -81.0%.
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 AMS have grown?
Investing $100 at the end of every month since 1984-07 would have grown to about $37,037 on $50,600 invested.
Did AMS beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $51,161. AMS trailed the S&P 500 by +99.3% 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
American Shared Hospital Services (AMS) historical total-return data from 1984-07 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.