Atmos EnergyATO +0.88%85 Piotroski F-Score is 5 as of Jun. 24, 2026, which is 17% below its 10-year median of 6.00. 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 490 Utilities - Regulated companies, Atmos Energy ranks worse than 53.27% on this metric.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Atmos Energy has an F-score of 5 indicating the company's financial situation is typical for a stable company.
The historical rank and industry rank for Atmos Energy's Piotroski F-Score or its related term are showing as below:
ATO'
s Piotroski F-Score Range Over the Past 10 Years
Min: 3 Med: 6 Max: 7
Current: 5
During the past 13 years, the highest Piotroski F-Score of Atmos Energy was 7. The lowest was 3. And the median was 6.
Atmos Energy (NYSE:ATO) Piotroski F-Score Explanation
The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
Atmos Energy Piotroski F-Score Related Terms
Atmos Energy Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Atmos Energy's Piotroski F-Score 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 Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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 Piotroski F-Score vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Atmos Energy's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Atmos Energy's Piotroski F-Score 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.
This Year (Mar26) TTM:
Last Year (Mar25) TTM:
Net Income was 186.429 + 174.891 + 402.964 + 581.899 = $1,346 Mil. Cash Flow from Operations was 496.373 + 348.124 + 308.058 + 723.489 = $1,876 Mil. Revenue was 838.774 + 737.48 + 1342.585 + 1962.402 = $4,881 Mil. Gross Profit was 562.834 + 498.045 + 816.776 + 1099.294 = $2,977 Mil.
Average Total Assets from the begining of this year (Mar25)
to the end of this year (Mar26) was
(26980.381 + 27712.527 + 28249.522 + 29798.395 + 30380.096) / 5 = $28624.1842 Mil. Total Assets at the begining of this year (Mar25) was $26,980 Mil. Long-Term Debt & Capital Lease Obligation was $9,618 Mil. Total Current Assets was $1,262 Mil. Total Current Liabilities was $1,258 Mil.
Net Income was 165.564 + 134.016 + 351.858 + 485.576 = $1,137 Mil.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Atmos Energy's current Net Income (TTM) was 1,346.
==> Positive ==> Score 1.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
Atmos Energy's return on assets of this year was 0.04989488. Atmos Energy's return on assets of last year was 0.04736643.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Atmos Energy's gearing of this year was 0.33600888. Atmos Energy's gearing of last year was 0.33262046.
==> Last year is lower than this year ==> Score 0.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
Atmos Energy's current ratio of this year was 1.00280575. Atmos Energy's current ratio of last year was 1.32771886.
==> Last year's current ratio is higher ==> Score 0.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
Atmos Energy's number of shares in issue this year was 167.812. Atmos Energy's number of shares in issue last year was 160.426.
==> There is larger number of shares in issue this year. ==> Score 0.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
Atmos Energy's gross margin of this year was 0.60987544. Atmos Energy's gross margin of last year was 0.58157702.
==> This year's gross margin is higher. ==> Score 1.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
Atmos Energy's asset turnover of this year was 0.18091816. Atmos Energy's asset turnover of last year was 0.18688029.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
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5
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Atmos Energy has an F-score of 5 indicating the company's financial situation is typical for a stable company.
Atmos Energy (ATO) has a Piotroski F-Score of 5 as of Jun. 24, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Atmos Energy and its competitors. This is 17% below median its historical median of 6.00. Over the past decade, Atmos Energy's Piotroski F-Score has ranged from 3.00 to 7.00. According to the industry distribution chart, Atmos Energy ranks #261 out of 490 companies in the Utilities - Regulated industry, placing it in the top 53.3%.
Is Atmos Energy's Piotroski F-Score too high?
Atmos Energy's current Piotroski F-Score of 5 is 17% below median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 7.00. The Utilities - Regulated industry median Piotroski F-Score is 6.00. Atmos Energy's value of 5 is 16.7% below this industry median. Based on the distribution chart, Atmos Energy ranks #261 out of 490 companies in the Utilities - Regulated industry, which is below the industry midpoint. 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 Piotroski F-Score compare to NI and UGI?
According to the Utilities - Regulated industry distribution chart, Atmos Energy ranks #261 out of 490 companies for Piotroski F-Score. This places Atmos Energy in the lower half of its industry. The industry median Piotroski F-Score is 6.00. Atmos Energy's value of 5 is 16.7% below this benchmark. Historically, Atmos Energy's own Piotroski F-Score has ranged from 3.00 to 7.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 6.00, Atmos Energy has consistently been below 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 Piotroski F-Score for an Utilities - Regulated company?
The median Piotroski F-Score among Utilities - Regulated companies is 6.00, based on 490 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Atmos Energy's current Piotroski F-Score of 5 is 16.7% 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Atmos Energy and its competitors. For the Utilities - Regulated industry, the median Piotroski F-Score is 6.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Atmos Energy's current Piotroski F-Score is 5, which is 17% below median its own 10-year median of 6.00. 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 Piotroski F-Score is 5, which is 17% below median its 10-year median of 6.00 and 16.7% below the Utilities - Regulated industry median of 6.00. 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 Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Atmos Energy (ATO), the current Piotroski F-Score is 5 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 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:
Piotroski F-Score: 5 (17% below median its 10-year median of 6.00)
GF Value™: $155.79 vs. price of $172.59 (10.8% above fair value)
Industry Position: 16.7% below the Utilities - Regulated median (#261 of 490)
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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