TransAltaTAC 51 PEG Ratio is 0.00 as of Jun. 24, 2026. GuruFocus rates TAC with a GF Score™ of 51/100 and a GF Value™ of $6.86 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 140 Utilities - Independent Power Producers companies, TransAlta ranks worse than 714285% on this metric.
PE Ratio without NRI / 5-Year EBITDA Growth Rate*
PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The growth rate we use is the 5-Year EBITDA growth rate. As of today, TransAlta's PE Ratio without NRI is 0.00. TransAlta's 5-Year EBITDA growth rate is 5.40%. Therefore, TransAlta's PEG Ratio for today is 0.00.
* The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
The historical rank and industry rank for TransAlta's PEG Ratio or its related term are showing as below:
During the past 13 years, TransAlta's highest PEG Ratio was 56.61. The lowest was 0.30. And the median was 1.82.
TAC's PEG Ratio is not ranked *
in the Utilities - Independent Power Producers industry.
Industry Median: 2.015 * Ranked among companies with meaningful PEG Ratio only.
Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.
TransAlta (NYSE:TAC) PEG Ratio Explanation
To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.
TransAlta PEG Ratio Related Terms
TransAlta PEG Ratio Historical Data
* Premium members only.
The historical data trend for TransAlta's PEG Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Utilities - Independent Power Producers subindustry, TransAlta's PEG Ratio, along with its competitors' market caps and PEG Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
TransAlta PEG Ratio vs Utilities - Independent Power Producers Industry
For the Utilities - Independent Power Producers industry and Utilities sector, TransAlta's PEG Ratio distribution charts can be found below:
* The bar in red indicates where TransAlta's PEG Ratio falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
* Note: The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
TransAlta (TAC) has a PEG Ratio of 0.00 as of Jun. 24, 2026. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on TransAlta and its competitors. Over the past decade, TransAlta's PEG Ratio has ranged from 0.30 to 56.61. According to the industry distribution chart, TransAlta ranks #999999 out of 140 companies in the Utilities - Independent Power Producers industry.
Is TransAlta's PEG Ratio too high?
TransAlta's current PEG Ratio is 0.00. Over the past 10 years, this metric has ranged from a low of 0.30 to a high of 56.61. Based on the distribution chart, TransAlta ranks #999999 out of 140 companies in the Utilities - Independent Power Producers industry, which is in the bottom quartile relative to peers. Overall, TransAlta has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does TransAlta's PEG Ratio compare to CEG and VST?
According to the Utilities - Independent Power Producers industry distribution chart, TransAlta ranks #999999 out of 140 companies for PEG Ratio. This places TransAlta in the lower half of its industry. The industry median PEG Ratio is 2.02. Historically, TransAlta's own PEG Ratio has ranged from 0.30 to 56.61 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PEG Ratio for an Utilities - Independent Power Producers company?
The median PEG Ratio among Utilities - Independent Power Producers companies is 2.02, based on 140 companies in the industry. Companies in the top quartile (top 25%) have a PEG Ratio significantly above this median, while those in the bottom quartile fall well below. However, PEG Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PEG Ratio mean?
A high PEG Ratio can signal that a stock is expensive relative to its fundamentals. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on TransAlta and its competitors. For the Utilities - Independent Power Producers industry, the median PEG Ratio is 2.02 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. TransAlta's current PEG Ratio is 0.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TransAlta stock overvalued right now?
Based on GuruFocus' analysis, TransAlta (TAC) is currently considered Significantly Overvalued. The stock's GF Value™ is $6.86, compared to a current price of $13.69 — trading 99.6% above its estimated fair value. The current PEG Ratio is 0.00. TransAlta's overall GF Score™ is 51/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PEG Ratio calculated?
PEG Ratio is calculated from a company's financial statements. For TransAlta (TAC), the current PEG Ratio is 0.00 as of Jun. 24, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is TransAlta (TAC) Overvalued in 2026?
Based on GuruFocus' analysis, TransAlta stock appears to be overvalued.
The current stock price of $13.69 is trading 99.6% above its estimated GF Value™ of $6.86.
GuruFocus considers TransAlta to be Significantly Overvalued.
Key valuation signals for TAC:
PEG Ratio: 0.00
GF Value™: $6.86 vs. price of $13.69 (99.6% above fair value)
No single metric tells the full story. See the TAC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
TransAlta Corp is an independent power producer based in Alberta, Canada. The company operates a diverse electrical power generation assets in Canada, the United States, and Western Australia. The company has reportable segments namely, Hydro, Wind & Solar, Gas, Energy Transition segment and Corporate Segment. The company generates the majority of its revenue from the gas segment.
51GF Score
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