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FCF Margin % is calculated as Free Cash Flow divided by its Revenue. AltaGas's Free Cash Flow for the
three
months ended in Jun. 2026 was $42 Mil. AltaGas's Revenue for the
three
months ended in Jun. 2026 was $2,706 Mil. Therefore, AltaGas's FCF Margin % for the quarter that ended in Jun. 2026 was 1.55%.
The historical data trend for AltaGas's FCF Margin % 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 Oil & Gas Midstream subindustry, AltaGas's FCF Margin %, along with its competitors' market caps and FCF Margin % 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.
AltaGas FCF Margin % vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, AltaGas's FCF Margin % distribution charts can be found below:
* The bar in red indicates where AltaGas's FCF Margin % 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.
AltaGas (ATGFF) has a FCF Margin % of 1.55% as of Jun. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on AltaGas and its competitors. According to the industry distribution chart, AltaGas ranks #640 out of 909 companies in the Oil & Gas industry, placing it in the top 70.4%.
Is AltaGas' FCF Margin % too high?
AltaGas' current FCF Margin % is 1.55%. The Oil & Gas industry median FCF Margin % is 3.40. AltaGas' value of 1.55% is 54.4% below this industry median. Based on the distribution chart, AltaGas ranks #640 out of 909 companies in the Oil & Gas industry, which is below the industry midpoint. Overall, AltaGas has a GF Score™ of 69/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does AltaGas' FCF Margin % compare to WMB and EPD?
According to the Oil & Gas industry distribution chart, AltaGas ranks #640 out of 909 companies for FCF Margin %. This places AltaGas in the lower half of its industry. The industry median FCF Margin % is 3.40. AltaGas' value of 1.55% is 54.4% below this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for an Oil & Gas company?
The median FCF Margin % among Oil & Gas companies is 3.40, based on 909 companies in the industry. Companies in the top quartile (top 25%) have a FCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, FCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. AltaGas's current FCF Margin % of 1.55% is 54.4% below 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on AltaGas and its competitors. For the Oil & Gas industry, the median FCF Margin % is 3.40 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. AltaGas's current FCF Margin % is 1.55%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is AltaGas stock overvalued right now?
Based on GuruFocus' analysis, AltaGas (ATGFF) is currently considered Significantly Overvalued. The stock's GF Value™ is $26.14, compared to a current price of $40.08 — trading 53.3% above its estimated fair value. The current FCF Margin % is 1.55% and 54.4% below the Oil & Gas industry median of 3.40. AltaGas' overall GF Score™ is 69/100 with 13 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For AltaGas (ATGFF), the current FCF Margin % is 1.55% as of Jun. 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 AltaGas (ATGFF) Overvalued in 2026?
Based on GuruFocus' analysis, AltaGas stock appears to be overvalued.
The current stock price of $40.08 is trading 53.3% above its estimated GF Value™ of $26.14.
GuruFocus considers AltaGas to be Significantly Overvalued.
Key valuation signals for ATGFF:
FCF Margin %: 1.55%
GF Value™: $26.14 vs. price of $40.08 (53.3% above fair value)
Industry Position: 54.4% below the Oil & Gas median (#640 of 909)
No single metric tells the full story. See the ATGFF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
AltaGas Ltd is a North American energy infrastructure company that connects customers and markets to energy sources. AltaGas has three reporting segments: Utilities, Midstream, and Corporate/Other. The majority of its revenue is generated from the Midstream segment, which operates a North American energy platform that moves natural gas and LPGs from the wellhead to markets. It exports propane and butane to Asia through its LPG terminals, and runs natural gas gathering, processing, fractionation, liquids handling, and storage infrastructure. The segment also includes its natural gas and natural gas liquids (NGLs) marketing business, domestic logistics, trucking and rail terminals, and liquid and natural gas storage capability. Geographically, the firm derives its key revenue from the U.S.
69GF Score
Get the complete analysis for ATGFF
FCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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