TransAlta Corporation (TAC)
NYSE: TAC · Real-Time Price · USD
12.51
-0.83 (-6.22%)
At close: Oct 22, 2026, 4:00 PM EDT
12.51
0.00 (0.00%)
After-hours: Oct 22, 2026, 6:30 PM EDT
TransAlta Market Cap
TransAlta has a market cap or net worth of $4.21 billion as of October 22, 2026. Its market cap has decreased by 15.87% in one year.
Market Cap
4.21B
Enterprise Value
7.72B
1-Year Change
-15.87%
Global Rank
n/a
Country Rank
n/a
Category
ChartMarket Cap Chart
Since December 31, 2002, TransAlta's market cap has increased from $1.85B to $4.21B, an increase of 127.38%. That is a compound annual growth rate of 3.51%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 21, 2026 | 4.22B | 12.51% |
| Dec 31, 2025 | 3.75B | -11.21% |
| Dec 31, 2024 | 4.22B | 92.96% |
| Dec 29, 2023 | 2.19B | -9.42% |
| Dec 30, 2022 | 2.42B | -19.59% |
| Dec 31, 2021 | 3.01B | 42.80% |
| Dec 31, 2020 | 2.10B | 3.18% |
| Dec 31, 2019 | 2.04B | 71.94% |
| Dec 31, 2018 | 1.19B | -30.75% |
| Dec 29, 2017 | 1.71B | 9.65% |
| Dec 30, 2016 | 1.56B | 60.45% |
| Dec 31, 2015 | 973.70M | -59.93% |
| Dec 31, 2014 | 2.43B | -24.74% |
| Dec 31, 2013 | 3.23B | -5.26% |
| Dec 31, 2012 | 3.41B | -24.99% |
| Dec 30, 2011 | 4.54B | -1.92% |
| Dec 31, 2010 | 4.63B | 5.26% |
| Dec 31, 2009 | 4.40B | 9.22% |
| Dec 31, 2008 | 4.03B | -40.55% |
| Dec 31, 2007 | 6.78B | 53.34% |
| Dec 29, 2006 | 4.42B | 4.31% |
| Dec 30, 2005 | 4.24B | 47.06% |
| Dec 31, 2004 | 2.88B | 19.37% |
| Dec 31, 2003 | 2.41B | 30.45% |
| Dec 31, 2002 | 1.85B | - |
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Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
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