What if you'd held TSSI?
A $1,000 investment in TSS, Inc. (TSSI) at the month-end close of 2005-09 would be worth $1,671 at the close of 2026-09 — +67.1% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $9,354.
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 2026-09, dividends included.
Every year, $1,000 from 2005
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2005 | $1,000 | — |
| 2006 | $1,069 | +6.9% |
| 2007 | $926 | -13.4% |
| 2008 | $181 | -80.4% |
| 2009 | $120 | -33.7% |
| 2010 | $261 | +117.5% |
| 2011 | $168 | -35.8% |
| 2012 | $91.60 | -45.5% |
| 2013 | $83.97 | -8.3% |
| 2014 | $70.61 | -15.9% |
| 2015 | $24.81 | -64.9% |
| 2016 | $7.63 | -69.2% |
| 2017 | $99.24 | +1200.0% |
| 2018 | $160 | +61.5% |
| 2019 | $311 | +94.0% |
| 2020 | $135 | -56.4% |
| 2021 | $85.88 | -36.6% |
| 2022 | $107 | +24.4% |
| 2023 | $51.53 | -51.8% |
| 2024 | $2,263 | +4292.6% |
| 2025 | $1,349 | -40.4% |
| 2026 | $1,607 | +19.1% |
Best and worst month-end to buy
The best single month-end close to have bought TSSI was 2016-12 ($0.04): $1,000 then is $210,500 today. The worst was 2025-06 ($28.83): $1,000 then is $292.
FAQ
What would $1,000 in TSSI be worth today?
A $1,000 investment in TSS, Inc. (TSSI) at the start of 2005 would be worth about $1,671 today, a total return of +67.1%. Dividends are reinvested in these figures.
What were the best and worst years for TSSI?
TSS, Inc. (TSSI)'s strongest calendar year since 2005 was 2024, a +4292.6% return — $1,000 held through that year became about $43,926 by year-end. Its weakest year was 2008, at -80.4%.
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 TSSI have grown?
Investing $100 at the end of every month since 2005-09 would have grown to about $440,080 on $25,300 invested.
Did TSSI beat the S&P 500?
Over the same period, $1,000 in the S&P 500 with dividends reinvested (the S&P 500 Total Return index) would be worth $9,354. TSSI trailed the S&P 500 by +82.1% 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
TSS, Inc. (TSSI) historical total-return data from 2005-09 to 2026-09, reduced to month-end closes for the tables above.
Returns use adjusted close prices — adjusted for stock splits and reinvested dividends, the same convention used by major brokerages. End-of-day and live prices come from EODHD; parts of the deep historical series are carried over from Yahoo Finance data. 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 (EODHD): 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 EODHD and Yahoo Finance. As of 2026-09-04. Not financial advice.