What if you'd held DNN?
A $1,000 investment in Denison Mines Corp Ordinary Shares (Canada) (DNN) at the month-end close of 2005-02 would be worth $763 at the close of 2026-09 — -23.7% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $9,650.
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 | $2,326 | +132.6% |
| 2007 | $2,036 | -12.5% |
| 2008 | $269 | -86.8% |
| 2009 | $290 | +7.6% |
| 2010 | $780 | +169.4% |
| 2011 | $285 | -63.4% |
| 2012 | $337 | +18.1% |
| 2013 | $324 | -4.0% |
| 2014 | $251 | -22.5% |
| 2015 | $135 | -46.2% |
| 2016 | $138 | +2.0% |
| 2017 | $148 | +7.8% |
| 2018 | $124 | -16.4% |
| 2019 | $113 | -8.7% |
| 2020 | $175 | +54.8% |
| 2021 | $370 | +110.8% |
| 2022 | $310 | -16.1% |
| 2023 | $477 | +53.9% |
| 2024 | $486 | +1.7% |
| 2025 | $718 | +47.8% |
| 2026 | $923 | +28.6% |
Best and worst month-end to buy
The best single month-end close to have bought DNN was 2020-03 ($0.25): $1,000 then is $13,680 today. The worst was 2007-10 ($11.97): $1,000 then is $286.
FAQ
What would $1,000 in DNN be worth today?
A $1,000 investment in Denison Mines Corp Ordinary Shares (Canada) (DNN) at the start of 2005 would be worth about $763 today, a total return of -23.7%. Dividends are reinvested in these figures.
What were the best and worst years for DNN?
Denison Mines Corp Ordinary Shares (Canada) (DNN)'s strongest calendar year since 2005 was 2010, a +169.4% return — $1,000 held through that year became about $2,694 by year-end. Its weakest year was 2008, at -86.8%.
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 DNN have grown?
Investing $100 at the end of every month since 2005-02 would have grown to about $88,582 on $26,000 invested.
Did DNN 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 $9,650. DNN trailed the S&P 500 by +92.1% 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
Denison Mines Corp Ordinary Shares (Canada) (DNN) historical total-return data from 2005-02 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.