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Keiyo Gas CoTSE:9539 66 PS Ratio is 0.71 as of Jul. 18, 2026, which is 103% above its 10-year median of 0.35. GuruFocus rates TSE:9539 with a GF Score™ of 66/100 and a GF Value™ of 円889.61 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 500 Utilities - Regulated companies, Keiyo Gas Co ranks better than 73% on this metric.
The PS Ratio, or Price-to-Sales ratio, or Price/Sales, is a financial ratio used to compare a company's market price to its Revenue per Share. As of today, Keiyo Gas Co's share price is 円1452.00.
Keiyo Gas Co's Revenue per Share for the trailing twelve months (TTM) ended in Dec. 2025 was 円2,033.61. Hence, Keiyo Gas Co's PS Ratio for today is 0.71.
Good Sign:
Keiyo Gas Co Ltd stock PS Ratio (=0.41) is close to 1-year low of 0.41.
The historical rank and industry rank for Keiyo Gas Co's PS Ratio or its related term are showing as below:
TSE:9539'
s PS Ratio Range Over the Past 10 Years
Min: 0.2 Med: 0.35 Max: 0.74
Current: 0.72
During the past 13 years, Keiyo Gas Co's highest PS Ratio was 0.74. The lowest was 0.20. And the median was 0.35.
TSE:9539's PS Ratio is ranked better than 73% of 500
companies
in the Utilities - Regulated industry
Industry Median: 1.445
vs TSE:9539: 0.72
Keiyo Gas Co Ltd revenue growth has slowed down over the past 12 months.
During the past 12 months, the average Revenue per Share Growth Rate of Keiyo Gas Co was 1.70% per year.
During the past 3 years, the average Revenue per Share Growth Rate was -0.30% per year.
During the past 5 years, the average Revenue per Share Growth Rate was 6.50% per year.
During the past 10 years, the average Revenue per Share Growth Rate was 3.90% per year.
During the past 13 years, Keiyo Gas Co's highest 3-Year average Revenue per Share Growth Rate was 11.50% per year. The lowest was -5.60% per year. And the median was 1.90% per year.
Back to Basics: PS Ratio
Keiyo Gas Co (TSE:9539) PS Ratio Explanation
The PS Ratio is an excellent valuation indicator if you want to compare a stock with its historical valuation or with the stocks in the same industry. The PS Ratio works especially well when you want to compare the stock's current valuation with its historical valuation. The PS Ratio is a great valuation tool for evaluating cyclical businesses where the PE Ratio works poorly. It works the best when comparing the current valuation with the historical valuation because over time, a company's profit margin tends to revert to the mean.
When the PS Ratio is applied to the whole stock market, it can be used to evaluate the current market valuation and projected returns. In this case, the price is the total market cap of all stocks that are traded, and sales are the GDP of the country. This is how Warren Buffett estimates the broad market valuation and project future returns.
The PS Ratio does not tell you how cheap or expensive the stock is. It cannot be used to compare companies in different industries. It works better for companies within the same industry because these companies tend to have similar capital structures and profit margins. It works the best when comparing a company with itself in the past.
Keiyo Gas Co PS Ratio Related Terms
Keiyo Gas Co PS Ratio Historical Data
* Premium members only.
The historical data trend for Keiyo Gas Co's PS 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, Keiyo Gas Co's PS Ratio, along with its competitors' market caps and PS 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.
Keiyo Gas Co PS Ratio vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Keiyo Gas Co's PS Ratio distribution charts can be found below:
* The bar in red indicates where Keiyo Gas Co's PS Ratio falls into.
The PS Ratio, or Price-to-Sales ratio, or Price/Sales, is a financial ratio used to compare a company's market price to its Revenue per Share. It is a ratio widely used to value stocks and it was first used by Ken Fisher.
Keiyo Gas Co's PS Ratio for today is calculated as
Keiyo Gas Co's Share Price of today is 円1452.00. Keiyo Gas Co's Revenue per Share for the trailing twelve months (TTM) ended in Dec. 2025 adds up the quarterly data reported by the company within the most recent 12 months, which was 円2,033.61.
* 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.
It can also be calculated from the numbers for the whole company:
Keiyo Gas Co (TSE:9539) has a PS Ratio of 0.71 as of Jul. 18, 2026. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on Keiyo Gas Co and its competitors. This is 103% above median its historical median of 0.35. Over the past decade, Keiyo Gas Co's PS Ratio has ranged from 0.20 to 0.74. According to the industry distribution chart, Keiyo Gas Co ranks #135 out of 500 companies in the Utilities - Regulated industry, placing it in the top 27%.
Is Keiyo Gas Co's PS Ratio too high?
Keiyo Gas Co's current PS Ratio of 0.71 is 103% above median its 10-year median of 0.35. Over the past 10 years, this metric has ranged from a low of 0.20 to a high of 0.74. The Utilities - Regulated industry median PS Ratio is 1.45. Keiyo Gas Co's value of 0.71 is 50.9% below this industry median. Based on the distribution chart, Keiyo Gas Co ranks #135 out of 500 companies in the Utilities - Regulated industry, which is above 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 PS Ratio compare to ATO and NI?
According to the Utilities - Regulated industry distribution chart, Keiyo Gas Co ranks #135 out of 500 companies for PS Ratio. This puts Keiyo Gas Co in the upper half of its industry. The industry median PS Ratio is 1.45. Keiyo Gas Co's value of 0.71 is 50.9% below this benchmark. Historically, Keiyo Gas Co's own PS Ratio has ranged from 0.20 to 0.74 over the past decade. While the company's 10-year median is 0.35 vs. the industry median of 1.45, Keiyo Gas Co 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 PS Ratio for an Utilities - Regulated company?
The median PS Ratio among Utilities - Regulated companies is 1.45, based on 500 companies in the industry. Companies in the top quartile (top 25%) have a PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, PS Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Keiyo Gas Co's current PS Ratio of 0.71 is 50.9% 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 PS Ratio mean?
A high PS Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on Keiyo Gas Co and its competitors. For the Utilities - Regulated industry, the median PS Ratio is 1.45 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Keiyo Gas Co's current PS Ratio is 0.71, which is 103% above median its own 10-year median of 0.35. 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889.61, compared to a current price of 円1,452.00 — trading 63.2% above its estimated fair value. The current PS Ratio is 0.71, which is 103% above median its 10-year median of 0.35 and 50.9% below the Utilities - Regulated industry median of 1.45. 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 PS Ratio calculated?
PS Ratio is calculated from a company's financial statements. For Keiyo Gas Co (TSE:9539), the current PS Ratio is 0.71 as of Jul. 18, 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 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1,452.00 is trading 63.2% above its estimated GF Value™ of 円889.61.
GuruFocus considers Keiyo Gas Co to be Significantly Overvalued.
Key valuation signals for TSE:9539:
PS Ratio: 0.71 (103% above median its 10-year median of 0.35)
GF Value™: 円889.61 vs. price of 円1,452.00 (63.2% above fair value)
Industry Position: 50.9% below the Utilities - Regulated median (#135 of 500)
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
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