TAC Stock Summary and Trading Ideas (Transalta | NYSE:TAC)

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 December 22, 2025, TAC stock price declined to $12.46 with 1,273,352 million shares trading.

TAC has a beta of 1.24, meaning it tends to be more sensitive to market movements. TAC has a correlation of 0.25 to the broad based SPY ETF.

TAC has a market cap of $3.70 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, PID, DFIS, CNRG, DFIC.

TAC has underperformed the market in the last year with a price return of -9.0% while the SPY ETF gained +18.8%. TAC has also underperformed the stock market ETF in the last 3 month and 2 week periods returning -8.3% and -11.4%, respectively, while the SPY returned +3.5% and +0.2%, respectively.

TAC support price is $12.18 and resistance is $12.88 (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.