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 2026-09 — +119.1% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $10,228.
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 2001
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2001 | $1,000 | — |
| 2002 | $851 | -14.9% |
| 2003 | $1,200 | +41.0% |
| 2004 | $1,370 | +14.2% |
| 2005 | $2,082 | +52.0% |
| 2006 | $2,261 | +8.6% |
| 2007 | $3,443 | +52.3% |
| 2008 | $2,162 | -37.2% |
| 2009 | $2,544 | +17.7% |
| 2010 | $2,559 | +0.6% |
| 2011 | $2,626 | +2.6% |
| 2012 | $2,078 | -20.9% |
| 2013 | $1,870 | -10.0% |
| 2014 | $1,416 | -24.3% |
| 2015 | $605 | -57.3% |
| 2016 | $964 | +59.4% |
| 2017 | $1,065 | +10.5% |
| 2018 | $754 | -29.2% |
| 2019 | $1,336 | +77.2% |
| 2020 | $1,445 | +8.2% |
| 2021 | $2,149 | +48.7% |
| 2022 | $1,763 | -18.0% |
| 2023 | $1,662 | -5.7% |
| 2024 | $2,893 | +74.1% |
| 2025 | $2,626 | -9.2% |
| 2026 | $2,481 | -5.5% |
Best and worst month-end to buy
The best single month-end close to have bought TAC was 2016-01 ($2.84): $1,000 then is $4,158 today. The worst was 2008-06 ($18.01): $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 +77.2% return — $1,000 held through that year became about $1,772 by year-end. Its weakest year was 2015, at -57.3%.
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 $50,160 on $30,300 invested.
Did TAC 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 $10,228. TAC trailed the S&P 500 by +78.6% 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 2026-09, 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 2026-09-03. Not financial advice.