Atmos EnergyATO +0.88%85 FCF Margin % is -14.27% as of Mar. 2026. GuruFocus rates ATO with a GF Score™ of 85/100 and a GF Value™ of $155.79 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 499 Utilities - Regulated companies, Atmos Energy ranks worse than 93.99% on this metric.
FCF Margin % is calculated as Free Cash Flow divided by its Revenue. Atmos Energy's Free Cash Flow for the
three
months ended in Mar. 2026 was $-280 Mil. Atmos Energy's Revenue for the
three
months ended in Mar. 2026 was $1,962 Mil. Therefore, Atmos Energy's FCF Margin % for the quarter that ended in Mar. 2026 was -14.27%.
The historical rank and industry rank for Atmos Energy's FCF Margin % or its related term are showing as below:
ATO'
s FCF Margin % Range Over the Past 10 Years
Min: -89.62 Med: -26.93 Max: 15.29
Current: -40.8
During the past 13 years, the highest FCF Margin % of Atmos Energy was 15.29%. The lowest was -89.62%. And the median was -26.93%.
ATO's FCF Margin % is ranked worse than 93.99% of 499
companies
in the Utilities - Regulated industry
Industry Median: 2.36
vs ATO: -40.80
Atmos Energy FCF Margin % Related Terms
Atmos Energy FCF Margin % Historical Data
* Premium members only.
The historical data trend for Atmos Energy'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 Utilities - Regulated Gas subindustry, Atmos Energy'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.
Atmos Energy FCF Margin % vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Atmos Energy's FCF Margin % distribution charts can be found below:
* The bar in red indicates where Atmos Energy'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.
Atmos Energy (ATO) has a FCF Margin % of -14.27% as of Mar. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Atmos Energy and its competitors. According to the industry distribution chart, Atmos Energy ranks #469 out of 499 companies in the Utilities - Regulated industry, placing it in the top 94%.
Is Atmos Energy's FCF Margin % too high?
Atmos Energy's current FCF Margin % is -14.27%. Based on the distribution chart, Atmos Energy ranks #469 out of 499 companies in the Utilities - Regulated industry, which is in the bottom quartile relative to peers. Overall, Atmos Energy has a GF Score™ of 85/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Atmos Energy's FCF Margin % compare to NI and UGI?
According to the Utilities - Regulated industry distribution chart, Atmos Energy ranks #469 out of 499 companies for FCF Margin %. This places Atmos Energy in the lower half of its industry. The industry median FCF Margin % is 2.36. 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 Utilities - Regulated company?
The median FCF Margin % among Utilities - Regulated companies is 2.36, based on 499 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. 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 Atmos Energy and its competitors. For the Utilities - Regulated industry, the median FCF Margin % is 2.36 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Atmos Energy's current FCF Margin % is -14.27%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Atmos Energy stock overvalued right now?
Based on GuruFocus' analysis, Atmos Energy (ATO) is currently considered Modestly Overvalued. The stock's GF Value™ is $155.79, compared to a current price of $172.59 — trading 10.8% above its estimated fair value. The current FCF Margin % is -14.27%. Atmos Energy's overall GF Score™ is 85/100 with 4 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 Atmos Energy (ATO), the current FCF Margin % is -14.27% as of Mar. 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 Atmos Energy (ATO) Overvalued in 2026?
Based on GuruFocus' analysis, Atmos Energy stock appears to be overvalued.
The current stock price of $172.59 is trading 10.8% above its estimated GF Value™ of $155.79.
GuruFocus considers Atmos Energy to be Modestly Overvalued.
Key valuation signals for ATO:
FCF Margin %: -14.27%
GF Value™: $155.79 vs. price of $172.59 (10.8% above fair value)
No single metric tells the full story. See the ATO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Atmos Energy is the largest publicly traded, fully regulated, pure-play natural gas utility in the United States, serving more than 3.3 million customers in Texas, Colorado, Kansas, Kentucky, Louisiana, Mississippi, Tennessee, and Virginia. About two thirds of its earnings come from Texas, where it distributes natural gas in northern Texas and owns an intrastate gas pipeline spanning several key shale gas formations and interconnected with five storage facilities.
85GF Score
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