What if you'd held AGEN?
A $1,000 investment in Agenus Inc. (AGEN) at the month-end close of 2000-02 would be worth $1.56 at the close of 2026-08 — -99.8% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $5,641.
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 2000
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2000 | $1,000 | — |
| 2001 | $1,482 | +48.2% |
| 2002 | $926 | -37.6% |
| 2003 | $1,025 | +10.7% |
| 2004 | $915 | -10.8% |
| 2005 | $430 | -53.0% |
| 2006 | $165 | -61.6% |
| 2007 | $184 | +11.5% |
| 2008 | $43.39 | -76.5% |
| 2009 | $57.85 | +33.3% |
| 2010 | $91.30 | +57.8% |
| 2011 | $30.13 | -67.0% |
| 2012 | $61.77 | +105.0% |
| 2013 | $39.78 | -35.6% |
| 2014 | $59.81 | +50.4% |
| 2015 | $68.40 | +14.4% |
| 2016 | $62.07 | -9.3% |
| 2017 | $49.11 | -20.9% |
| 2018 | $35.85 | -27.0% |
| 2019 | $61.32 | +71.0% |
| 2020 | $47.91 | -21.9% |
| 2021 | $48.51 | +1.3% |
| 2022 | $36.16 | -25.5% |
| 2023 | $12.74 | -64.8% |
| 2024 | $2.10 | -83.5% |
| 2025 | $2.41 | +14.6% |
| 2026 | $6.34 | +163.1% |
Best and worst month-end to buy
The best single month-end close to have bought AGEN was 2025-03 ($1.51): $1,000 then is $5,470 today. The worst was 2000-02 ($5,299): $1,000 then is $1.56.
FAQ
What would $1,000 in AGEN be worth today?
A $1,000 investment in Agenus Inc. (AGEN) at the start of 2000 would be worth about $1.56 today, a total return of -99.8%. Dividends are reinvested in these figures.
What were the best and worst years for AGEN?
Agenus Inc. (AGEN)'s strongest calendar year since 2000 was 2026, a +163.1% return — $1,000 held through that year became about $2,631 by year-end. Its weakest year was 2024, at -83.5%.
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 AGEN have grown?
Investing $100 at the end of every month since 2000-02 would have grown to about $8,799 on $31,900 invested.
Did AGEN beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $5,641. AGEN trailed the S&P 500 by +100.0% 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
Agenus Inc. (AGEN) historical total-return data from 2000-02 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.