Keiyo Gas Co (TSE:9539) 1-Year Sharpe Ratio: 0.63 (As of Sep. 11, 2026)

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TSE:9539 Keiyo Gas Co Ltd TSE:9539
69 GF Score
Price 円1,355.00
GF Value 円964.51
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Keiyo Gas Co 1-Year Sharpe Ratio?

Keiyo Gas Co TSE:9539 +0.67% 69 1-Year Sharpe Ratio is 0.63 as of Sep. 11, 2026. GuruFocus rates TSE:9539 with a GF Score™ of 69/100 and a GF Value™ of 円964.51 (Significantly Overvalued). The stock has 6 warning signs investors should review.

The 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past year. As of today (2026-09-11), Keiyo Gas Co's 1-Year Sharpe Ratio is 0.63.

Keiyo Gas Co  (TSE:9539) 1-Year Sharpe Ratio Explanation

The 1-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past year. It is calculated as the annualized result of the average monthly excess return divided by its standard deviation over the past year. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

The greater a portfolio's Sharpe Ratio, the better its risk-adjusted performance. A negative Sharpe Ratio means the risk-free rate is greater than the portfolio’s historical or projected return, or else the portfolio's return is expected to be negative.

Keiyo Gas Co 1-Year Sharpe Ratio Related Terms

TSE:9539 vs ATO, NI: 1-Year Sharpe Ratio Comparison

For the Utilities - Regulated Gas subindustry, Keiyo Gas Co's 1-Year Sharpe Ratio, along with its competitors' market caps and 1-Year Sharpe 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 1-Year Sharpe Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Keiyo Gas Co's 1-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where Keiyo Gas Co's 1-Year Sharpe Ratio falls into.


TSE:9539
69GF Score
Keiyo Gas Co Ltd TSE:9539
1-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Keiyo Gas Co 1-Year Sharpe Ratio Calculation

The 1-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset. A stock / portfolio's 1-Year Sharpe Ratio can be calculated by dividing the difference between the one-year returns of the investment and the risk-free rate, by the standard deviation of the investment returns over one year.

Frequently Asked Questions Learn more about 1-Year Sharpe Ratio →
What does a 1-Year Sharpe Ratio of 0.63 mean?
Keiyo Gas Co (TSE:9539) has a 1-Year Sharpe Ratio of 0.63 as of Sep. 11, 2026. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Keiyo Gas Co and its competitors.
Is Keiyo Gas Co's 1-Year Sharpe Ratio too high?
Keiyo Gas Co's current 1-Year Sharpe Ratio is 0.63. Overall, Keiyo Gas Co has a GF Score™ of 69/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Keiyo Gas Co's 1-Year Sharpe Ratio compare to ATO and NI?
Keiyo Gas Co's 1-Year Sharpe Ratio of 0.63 can be compared against companies in the Utilities - Regulated industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 1-Year Sharpe Ratio for an Utilities - Regulated company?
A good 1-Year Sharpe Ratio depends on the Utilities - Regulated industry context. However, 1-Year Sharpe Ratio 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 1-Year Sharpe Ratio mean?
A high 1-Year Sharpe Ratio can signal that a stock is expensive relative to its fundamentals. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Keiyo Gas Co and its competitors. Keiyo Gas Co's current 1-Year Sharpe Ratio is 0.63. 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964.51, compared to a current price of 円1,355.00 — trading 40.5% above its estimated fair value. The current 1-Year Sharpe Ratio is 0.63. Keiyo Gas Co's overall GF Score™ is 69/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 1-Year Sharpe Ratio calculated?
1-Year Sharpe Ratio is calculated from a company's financial statements. For Keiyo Gas Co (TSE:9539), the current 1-Year Sharpe Ratio is 0.63 as of Sep. 11, 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1,355.00 is trading 40.5% above its estimated GF Value™ of 円964.51. GuruFocus considers Keiyo Gas Co to be Significantly Overvalued.

Key valuation signals for TSE:9539:

  • 1-Year Sharpe Ratio: 0.63
  • GF Value™: 円964.51 vs. price of 円1,355.00 (40.5% above fair value)
  • GF Score™: 69/100 with 6 warning signs

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 Business Description

Address 2-8-8 Minami Ichikawa, Chiba Prefecture, Ichikawa, JPN, 272-8580
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.
69GF Score

Get the complete analysis for TSE:9539

1-Year Sharpe Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

円1,355.00
Price
円964.51
GF Value