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ONE GasOGS +0.74%77 Shiller PE Ratio is 17.98 as of Sep. 04, 2026, which is 3% below its 10-year median of 18.54. GuruFocus rates OGS with a GF Score™ of 77/100 and a GF Value™ of $73.43 (Fairly Valued). The stock has 4 warning signs investors should review. Among 395 Utilities - Regulated companies, ONE Gas ranks worse than 54.94% on this metric.
As of today (2026-09-04), ONE Gas's current share price is $80.54. ONE Gas's E10 for the quarter that ended in Jun. 2026 was $4.48. ONE Gas's Shiller PE Ratio for today is 17.98.
The historical rank and industry rank for ONE Gas's Shiller PE Ratio or its related term are showing as below:
OGS'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 15.34 Med: 18.54 Max: 27.1
Current: 17.98
During the past years, ONE Gas's highest Shiller PE Ratio was 27.10. The lowest was 15.34. And the median was 18.54.
OGS's Shiller PE Ratio is ranked worse than 54.94% of 395
companies
in the Utilities - Regulated industry
Industry Median: 16.8
vs OGS: 17.98
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.
ONE Gas's adjusted earnings per share data for the three months ended in Jun. 2026 was $0.740. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $4.48 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
ONE Gas Shiller PE Ratio Related Terms
ONE Gas Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for ONE Gas's Shiller PE Ratio 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, ONE Gas's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio 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.
ONE Gas Shiller PE Ratio vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, ONE Gas's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where ONE Gas's Shiller PE Ratio falls into.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
ONE Gas's Shiller PE Ratio for today 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.
ONE Gas's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, ONE Gas's adjusted earnings per share data for the three months ended in Jun. 2026 was:
Add all the adjusted EPS together and divide 10 will get our E10.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
ONE Gas (OGS) has a Shiller PE Ratio of 17.98 as of Sep. 04, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on ONE Gas and its competitors. This is near median its historical median of 18.54. Over the past decade, ONE Gas' Shiller PE Ratio has ranged from 15.34 to 27.10. According to the industry distribution chart, ONE Gas ranks #217 out of 395 companies in the Utilities - Regulated industry, placing it in the top 54.9%.
Is ONE Gas' Shiller PE Ratio too high?
ONE Gas' current Shiller PE Ratio of 17.98 is near median its 10-year median of 18.54. Over the past 10 years, this metric has ranged from a low of 15.34 to a high of 27.10. The Utilities - Regulated industry median Shiller PE Ratio is 16.80. ONE Gas' value of 17.98 is 7% above this industry median. Based on the distribution chart, ONE Gas ranks #217 out of 395 companies in the Utilities - Regulated industry, which is below the industry midpoint. Overall, ONE Gas has a GF Score™ of 77/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does ONE Gas' Shiller PE Ratio compare to SR and NJR?
According to the Utilities - Regulated industry distribution chart, ONE Gas ranks #217 out of 395 companies for Shiller PE Ratio. This places ONE Gas in the lower half of its industry. The industry median Shiller PE Ratio is 16.80. ONE Gas' value of 17.98 is 7% above this benchmark. Historically, ONE Gas' own Shiller PE Ratio has ranged from 15.34 to 27.10 over the past decade. While the company's 10-year median is 18.54 vs. the industry median of 16.80, ONE Gas 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 Shiller PE Ratio for an Utilities - Regulated company?
The median Shiller PE Ratio among Utilities - Regulated companies is 16.80, based on 395 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. ONE Gas's current Shiller PE Ratio of 17.98 is 7% 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 Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on ONE Gas and its competitors. For the Utilities - Regulated industry, the median Shiller PE Ratio is 16.80 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. ONE Gas's current Shiller PE Ratio is 17.98, which is near median its own 10-year median of 18.54. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ONE Gas stock overvalued right now?
Based on GuruFocus' analysis, ONE Gas (OGS) is currently considered Fairly Valued. The stock's GF Value™ is $73.43, compared to a current price of $80.54 — trading 9.7% above its estimated fair value. The current Shiller PE Ratio is 17.98, which is near median its 10-year median of 18.54 and 7% above the Utilities - Regulated industry median of 16.80. ONE Gas' overall GF Score™ is 77/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For ONE Gas (OGS), the current Shiller PE Ratio is 17.98 as of Sep. 04, 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 ONE Gas (OGS) Overvalued in 2026?
Based on GuruFocus' analysis, ONE Gas stock appears to be overvalued.
The current stock price of $80.54 is trading 9.7% above its estimated GF Value™ of $73.43.
GuruFocus considers ONE Gas to be Fairly Valued.
Key valuation signals for OGS:
Shiller PE Ratio: 17.98 (near median its 10-year median of 18.54)
GF Value™: $73.43 vs. price of $80.54 (9.7% above fair value)
Industry Position: 7% above the Utilities - Regulated median (#217 of 395)
No single metric tells the full story. See the OGS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
ONE Gas Inc is a regulated natural gas utility company. It is involved in the distribution and sale of natural gas to residential, commercial, industrial, and transportation consumers through its network of pipelines and service lines. Almost all of the company's revenue is derived from natural gas sales in the states of Oklahoma, Kansas, and Texas. It operates in one reportable business segment: regulated public utilities that deliver natural gas to residential, commercial, and transportation customers.
77GF Score
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