TransAlta to Host Fourth Quarter and Full Year 2025 Results Conference Call
Globe Newswire (Tue, 27-Jan 6:47 PM ET)
TransAlta Provides Notice to Mothball Sheerness Unit 1
Globe Newswire (Thu, 18-Dec 5:22 PM ET)
Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for 90 Days
Globe Newswire (Wed, 17-Dec 7:00 AM ET)
Globe Newswire (Fri, 12-Dec 6:39 PM ET)
Globe Newswire (Tue, 9-Dec 7:00 AM ET)
TransAlta Advances Data Centre Strategy Amid Solid Operational Performance in Q3 2025
Market Chameleon (Thu, 6-Nov 4:10 AM ET)
TransAlta Corp is an independent power producer based in Alberta, Canada. The company operates a diverse and growing fleet of electrical power generation assets in Canada, the United States, and Australia. The company has six reportable segments namely, Hydro, Wind & Solar, Energy Marketing, Gas, Energy Transition segment and Corporate Segment. The company generates the majority of its revenue from the gas segment.
Transalta trades on the NYSE stock market under the symbol TAC.
As of February 23, 2026, TAC stock price declined to $12.90 with 1,119,900 million shares trading.
TAC has a beta of 1.16, meaning it tends to be more sensitive to market movements. TAC has a correlation of 0.27 to the broad based SPY ETF.
TAC has a market cap of $3.83 billion. This is considered a Mid Cap stock.
In the last 3 years, TAC traded as high as $17.88 and as low as $5.94.
The top ETF exchange traded funds that TAC belongs to (by Net Assets): KOMP, DFIS, PID, CNRG, DFIC.
TAC has outperformed the market in the last year with a return of +16.1%, while the SPY ETF gained +13.0%. However, in the most recent history, TAC shares have underperformed the stock market with its stock returning -6.5% in the last 3 month period and -2.6% for the last 2 week period, while SPY has returned +4.9% and -1.2%, respectively.
TAC support price is $13.12 and resistance is $13.88 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that TAC shares will trade within this expected range on the day.