What if you'd held TAC?
A $1,000 investment in TransAlta Corporation (TAC) at the month-end close of 2001-07 would be worth $2,191 at the close of 2026-08 — +119.1% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $6,364.
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 2001
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2001 | $1,000 | — |
| 2002 | $852 | -14.8% |
| 2003 | $1,200 | +40.9% |
| 2004 | $1,369 | +14.0% |
| 2005 | $2,082 | +52.1% |
| 2006 | $2,261 | +8.6% |
| 2007 | $3,443 | +52.3% |
| 2008 | $2,130 | -38.1% |
| 2009 | $2,505 | +17.6% |
| 2010 | $2,519 | +0.6% |
| 2011 | $2,587 | +2.7% |
| 2012 | $2,046 | -20.9% |
| 2013 | $1,842 | -10.0% |
| 2014 | $1,373 | -25.5% |
| 2015 | $587 | -57.2% |
| 2016 | $936 | +59.4% |
| 2017 | $1,034 | +10.5% |
| 2018 | $727 | -29.7% |
| 2019 | $1,289 | +77.1% |
| 2020 | $1,393 | +8.1% |
| 2021 | $2,074 | +48.9% |
| 2022 | $1,699 | -18.1% |
| 2023 | $1,603 | -5.7% |
| 2024 | $2,790 | +74.0% |
| 2025 | $2,523 | -9.6% |
| 2026 | $2,481 | -1.7% |
Best and worst month-end to buy
The best single month-end close to have bought TAC was 2016-01 ($2.89): $1,000 then is $4,284 today. The worst was 2008-06 ($18.88): $1,000 then is $656.
FAQ
What would $1,000 in TAC be worth today?
A $1,000 investment in TransAlta Corporation (TAC) at the start of 2001 would be worth about $2,191 today, a total return of +119.1%. Dividends are reinvested in these figures.
What were the best and worst years for TAC?
TransAlta Corporation (TAC)'s strongest calendar year since 2001 was 2019, a +77.1% return — $1,000 held through that year became about $1,771 by year-end. Its weakest year was 2015, at -57.2%.
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 TAC have grown?
Investing $100 at the end of every month since 2001-07 would have grown to about $51,101 on $30,200 invested.
Did TAC beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $6,364. TAC trailed the S&P 500 by +65.6% 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
TransAlta Corporation (TAC) historical total-return data from 2001-07 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.