TransAltaTAC 51 Market Cap is $4,345 Mil 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 484 Utilities - Independent Power Producers companies, TransAlta ranks better than 85.74% on this metric.
Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). TransAlta's share price for the quarter that ended in Mar. 2026 was $13.1. TransAlta's Shares Outstanding (EOP) for the quarter that ended in Mar. 2026 was 298 Mil. Therefore, TransAlta's market cap for the quarter that ended in Mar. 2026 was $3,900 Mil.
TransAlta's quarterly market cap
declined
from Sep. 2025 ($4,056 Mil) to Dec. 2025 ($3,750 Mil) but then
increased
from Dec. 2025 ($3,750 Mil) to Mar. 2026 ($3,900 Mil).
TransAlta's annual market cap
increased
from Dec. 2023 ($2,551 Mil) to Dec. 2024 ($4,210 Mil) but then
declined
from Dec. 2024 ($4,210 Mil) to Dec. 2025 ($3,750 Mil).
Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. TransAlta's Enterprise Value for Today is $8,027 Mil.
TransAlta (NYSE:TAC) Market Cap Explanation
Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the companys debt. The real price you pay is the Enterprise Value.
Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.
TransAlta Market Cap Related Terms
TransAlta Market Cap Historical Data
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The historical data trend for TransAlta's Market Cap 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 Market Cap, along with its competitors' market caps and Market Cap 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 Market Cap vs Utilities - Independent Power Producers Industry
For the Utilities - Independent Power Producers industry and Utilities sector, TransAlta's Market Cap distribution charts can be found below:
* The bar in red indicates where TransAlta's Market Cap falls into.
Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.
TransAlta's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as
* 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.
TransAlta (TAC) has a Market Cap of $4,345 Mil as of Jun. 24, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on TransAlta and its competitors. According to the industry distribution chart, TransAlta ranks #69 out of 484 companies in the Utilities - Independent Power Producers industry, placing it in the top 14.3%.
Is TransAlta's Market Cap too high?
TransAlta's current Market Cap is $4,345 Mil. The Utilities - Independent Power Producers industry median Market Cap is 214.65. TransAlta's value of $4,345 Mil is 1924.3% above this industry median. Based on the distribution chart, TransAlta ranks #69 out of 484 companies in the Utilities - Independent Power Producers industry, which is in the top quartile — a strong position 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 Market Cap compare to CEG and VST?
According to the Utilities - Independent Power Producers industry distribution chart, TransAlta ranks #69 out of 484 companies for Market Cap. This places TransAlta in the top 14% of its industry — outperforming the majority of peers. The industry median Market Cap is 214.65. TransAlta's value of $4,345 Mil is 1924.3% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for an Utilities - Independent Power Producers company?
The median Market Cap among Utilities - Independent Power Producers companies is 214.65, based on 484 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. TransAlta's current Market Cap of $4,345 Mil is 1924.3% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on TransAlta and its competitors. For the Utilities - Independent Power Producers industry, the median Market Cap is 214.65 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. TransAlta's current Market Cap is $4,345 Mil. 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 Market Cap is $4,345 Mil and 1924.3% above the Utilities - Independent Power Producers industry median of 214.65. 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 Market Cap calculated?
Market Cap is calculated from a company's financial statements. For TransAlta (TAC), the current Market Cap is $4,345 Mil 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:
Market Cap: $4,345 Mil
GF Value™: $6.86 vs. price of $13.69 (99.6% above fair value)
Industry Position: 1924.3% above the Utilities - Independent Power Producers median (#69 of 484)
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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