TransAlta (STU:TZ1) OCF Yield %: 12.36 (As of Jun. 24, 2026) — 59% Below Median


STU:TZ1 TransAlta Corp STU:TZ1
55 GF Score
Price €12.40
GF Value €6.22
Valuation Significantly Overvalued
! 6 Warning Signs
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What is TransAlta OCF Yield %?

TransAlta STU:TZ1 55 OCF Yield % is 12.36 as of Jun. 24, 2026, which is 59% below its 10-year median of 30.20. GuruFocus rates STU:TZ1 with a GF Score™ of 55/100 and a GF Value™ of €6.22 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 438 Utilities - Independent Power Producers companies, TransAlta ranks better than 61.87% on this metric.

OCF Yield % is calculated as Cash Flow from Operations divided by Market Capitalization. It is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.

As of today, TransAlta's Trailing 12-Month Cash Flow from Operations is €475 Mil, and Market Cap is €3,811 Mil. Therefore, TransAlta's OCF Yield % for today is 12.36%.

The historical rank and industry rank for TransAlta's OCF Yield % or its related term are showing as below:

STU:TZ1' s OCF Yield % Range Over the Past 10 Years
Min: 8.56   Med: 30.2   Max: 56.16
Current: 12.36


During the past 13 years, the highest OCF Yield % of TransAlta was 56.16%. The lowest was 8.56%. And the median was 30.20%.

STU:TZ1's OCF Yield % is ranked better than
61.87% of 438 companies
in the Utilities - Independent Power Producers industry
Industry Median: 7.57 vs STU:TZ1: 12.36

TransAlta's OCF Margin % for the quarter that ended in Mar. 2026 was %.


TransAlta OCF Yield % Explanation

Similar to Earnings Yield %, OCF Yield % is financial solvency ratio. A lower ratio suggests a less attractive investment, indicating that investors might not receive substantial returns in proportion to their investment. Conversely, a high operating cash flow yield signals that a company generates sufficient cash to comfortably meet its debts, obligations, and dividend payments, making it a promising investment choice.


TransAlta OCF Yield % Related Terms


TransAlta OCF Yield % Historical Data

* Premium members only.

The historical data trend for TransAlta's OCF Yield % 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.

TransAlta OCF Yield % Chart

TransAlta Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
OCF Yield %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 26.88 27.20 43.76 13.46 12.56

TransAlta Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
OCF Yield % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.71 14.62 17.93 17.96 9.22

STU:TZ1 vs CEG, VST, NRG: OCF Yield % Comparison

For the Utilities - Independent Power Producers subindustry, TransAlta's OCF Yield %, along with its competitors' market caps and OCF Yield % 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 OCF Yield % vs Utilities - Independent Power Producers Industry

For the Utilities - Independent Power Producers industry and Utilities sector, TransAlta's OCF Yield % distribution charts can be found below:

* The bar in red indicates where TransAlta's OCF Yield % falls into.


STU:TZ1
55GF Score
TransAlta Corp STU:TZ1
OCF Yield % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

TransAlta OCF Yield % Calculation

OCF Yield % is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.

TransAlta's OCF Yield % for the fiscal year that ended in Dec. 2025 is calculated as

OCF Yield %=Cash Flow from Operations / Market Cap
=399.916 / 3185.0745
=12.56%

TransAlta's annualized OCF Yield % for the quarter that ended in Mar. 2026 is calculated as

OCF Yield %=Cash Flow from Operations * Annualized Factor / Market Cap
=77.547 * 4 / 3362.5215
=9.22%

* 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.

Frequently Asked Questions Learn more about OCF Yield % →
What does a OCF Yield % of 12.36 mean?
TransAlta (STU:TZ1) has a OCF Yield % of 12.36 as of Jun. 24, 2026. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on TransAlta and its competitors. This is 59% below median its historical median of 30.20. Over the past decade, TransAlta's OCF Yield % has ranged from 8.56 to 56.16. According to the industry distribution chart, TransAlta ranks #167 out of 438 companies in the Utilities - Independent Power Producers industry, placing it in the top 38.1%.
Is TransAlta's OCF Yield % too high?
TransAlta's current OCF Yield % of 12.36 is 59% below median its 10-year median of 30.20. Over the past 10 years, this metric has ranged from a low of 8.56 to a high of 56.16. The Utilities - Independent Power Producers industry median OCF Yield % is 7.57. TransAlta's value of 12.36 is 63.3% above this industry median. Based on the distribution chart, TransAlta ranks #167 out of 438 companies in the Utilities - Independent Power Producers industry, which is above the industry midpoint. Overall, TransAlta has a GF Score™ of 55/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does TransAlta's OCF Yield % compare to CEG and VST?
According to the Utilities - Independent Power Producers industry distribution chart, TransAlta ranks #167 out of 438 companies for OCF Yield %. This puts TransAlta in the upper half of its industry. The industry median OCF Yield % is 7.57. TransAlta's value of 12.36 is 63.3% above this benchmark. Historically, TransAlta's own OCF Yield % has ranged from 8.56 to 56.16 over the past decade. While the company's 10-year median is 30.20 vs. the industry median of 7.57, TransAlta has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good OCF Yield % for an Utilities - Independent Power Producers company?
The median OCF Yield % among Utilities - Independent Power Producers companies is 7.57, based on 438 companies in the industry. Companies in the top quartile (top 25%) have a OCF Yield % significantly above this median, while those in the bottom quartile fall well below. However, OCF Yield % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. TransAlta's current OCF Yield % of 12.36 is 63.3% 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 OCF Yield % mean?
A high OCF Yield % can signal that a stock is expensive relative to its fundamentals. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on TransAlta and its competitors. For the Utilities - Independent Power Producers industry, the median OCF Yield % is 7.57 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. TransAlta's current OCF Yield % is 12.36, which is 59% below median its own 10-year median of 30.20. 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 (STU:TZ1) is currently considered Significantly Overvalued. The stock's GF Value™ is €6.22, compared to a current price of €12.40 — trading 99.4% above its estimated fair value. The current OCF Yield % is 12.36, which is 59% below median its 10-year median of 30.20 and 63.3% above the Utilities - Independent Power Producers industry median of 7.57. TransAlta's overall GF Score™ is 55/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Yield % calculated?
OCF Yield % is calculated from a company's financial statements. For TransAlta (STU:TZ1), the current OCF Yield % is 12.36 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 (STU:TZ1) Overvalued in 2026?

Based on GuruFocus' analysis, TransAlta stock appears to be overvalued. The current stock price of €12.40 is trading 99.4% above its estimated GF Value™ of €6.22. GuruFocus considers TransAlta to be Significantly Overvalued.

Key valuation signals for STU:TZ1:

  • OCF Yield %: 12.36 (59% below median its 10-year median of 30.20)
  • GF Value™: €6.22 vs. price of €12.40 (99.4% above fair value)
  • GF Score™: 55/100 with 6 warning signs
  • Industry Position: 63.3% above the Utilities - Independent Power Producers median (#167 of 438)

No single metric tells the full story. See the STU:TZ1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


TransAlta Business Description

Address 1100 1st Street SE, TransAlta Place, Suite 1400, Calgary, AB, CAN, T2G 1B1
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.
55GF Score

Get the complete analysis for STU:TZ1

OCF Yield % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€12.40
Price
€6.22
GF Value