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Keiyo Gas CoTSE:9539 -1.53%66 Operating Margin % is 0.00% as of Dec. 2025. GuruFocus rates TSE:9539 with a GF Score™ of 66/100 and a GF Value™ of 円889.63 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 499 Utilities - Regulated companies, Keiyo Gas Co ranks worse than 65.13% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Keiyo Gas Co's Operating Income for the
three
months ended in Dec. 2025 was 円0 Mil. Keiyo Gas Co's Revenue for the
three
months ended in Dec. 2025 was 円0 Mil. Therefore, Keiyo Gas Co's Operating Margin % for the quarter that ended in Dec. 2025 was 0.00%.
Warning Sign:
Keiyo Gas Co Ltd operating margin has been in a 5-year decline. The average rate of decline per year is -4.6%.
The historical rank and industry rank for Keiyo Gas Co's Operating Margin % or its related term are showing as below:
TSE:9539'
s Operating Margin % Range Over the Past 10 Years
Min: 0.03 Med: 4.34 Max: 8.98
Current: 8.98
TSE:9539's Operating Margin % is ranked worse than 65.13% of 499
companies
in the Utilities - Regulated industry
Industry Median: 14.85
vs TSE:9539: 8.98
Keiyo Gas Co's 5-Year Average Operating Margin % Growth Rate was -4.60% per year.
Keiyo Gas Co's Operating Income for the
three
months ended in Dec. 2025 was 円0 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was 円5,868 Mil.
Keiyo Gas Co (TSE:9539) Operating Margin % Explanation
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
Keiyo Gas Co Operating Margin % Related Terms
Keiyo Gas Co Operating Margin % Historical Data
* Premium members only.
The historical data trend for Keiyo Gas Co's Operating 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.
TSE:9539 vs ATO, NI: Operating Margin % Comparison
For the Utilities - Regulated Gas subindustry, Keiyo Gas Co's Operating Margin %, along with its competitors' market caps and Operating 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.
Keiyo Gas Co Operating Margin % vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Keiyo Gas Co's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Keiyo Gas Co's Operating Margin % falls into.
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
Keiyo Gas Co's Operating Margin % for the fiscal year that ended in Dec. 2025 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.
Keiyo Gas Co (TSE:9539) has a Operating Margin % of 0.00% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Keiyo Gas Co and its competitors. Over the past decade, Keiyo Gas Co's Operating Margin % has ranged from 0.03 to 8.98. According to the industry distribution chart, Keiyo Gas Co ranks #325 out of 499 companies in the Utilities - Regulated industry, placing it in the top 65.1%.
Is Keiyo Gas Co's Operating Margin % too high?
Keiyo Gas Co's current Operating Margin % is 0.00%. Over the past 10 years, this metric has ranged from a low of 0.03 to a high of 8.98. Based on the distribution chart, Keiyo Gas Co ranks #325 out of 499 companies in the Utilities - Regulated industry, which is below the industry midpoint. Overall, Keiyo Gas Co has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Keiyo Gas Co's Operating Margin % compare to ATO and NI?
According to the Utilities - Regulated industry distribution chart, Keiyo Gas Co ranks #325 out of 499 companies for Operating Margin %. This places Keiyo Gas Co in the lower half of its industry. The industry median Operating Margin % is 14.85. Historically, Keiyo Gas Co's own Operating Margin % has ranged from 0.03 to 8.98 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Margin % for an Utilities - Regulated company?
The median Operating Margin % among Utilities - Regulated companies is 14.85, based on 499 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Keiyo Gas Co and its competitors. For the Utilities - Regulated industry, the median Operating Margin % is 14.85 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Keiyo Gas Co's current Operating Margin % is 0.00%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Keiyo Gas Co stock overvalued right now?
Based on GuruFocus' analysis, Keiyo Gas Co (TSE:9539) is currently considered Significantly Overvalued. The stock's GF Value™ is 円889.63, compared to a current price of 円1,476.00 — trading 65.9% above its estimated fair value. The current Operating Margin % is 0.00%. Keiyo Gas Co's overall GF Score™ is 66/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Keiyo Gas Co (TSE:9539), the current Operating Margin % is 0.00% as of Dec. 2025. 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 Keiyo Gas Co (TSE:9539) Overvalued in 2026?
Based on GuruFocus' analysis, Keiyo Gas Co stock appears to be overvalued.
The current stock price of 円1,476.00 is trading 65.9% above its estimated GF Value™ of 円889.63.
GuruFocus considers Keiyo Gas Co to be Significantly Overvalued.
Key valuation signals for TSE:9539:
Operating Margin %: 0.00%
GF Value™: 円889.63 vs. price of 円1,476.00 (65.9% above fair value)
No single metric tells the full story. See the TSE:9539 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Keiyo Gas Co Ltd is engaged in gas business. The company produces, process and sells gas byproducts. It is also engaged in production, sales, rental, installation, repair, maintenance and management of gas appliances, kitchen equipment, water supply, and drainage equipment, air conditioning equipment and housing equipment.
66GF Score
Get the complete analysis for TSE:9539
Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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