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Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Nagaoka InternationalTSE:6239 -1.05%63 Median PS Value is 円741.24 as of Jul. 15, 2026, which is 100% below its 10-year median of 1.96. GuruFocus rates TSE:6239 with a GF Score™ of 63/100 and a GF Value™ of 円889.34 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 553 Oil & Gas companies, Nagaoka International ranks worse than 81.01% on this metric.
This valuation method assumes that the stock valuation will revert to its historical (10-Year) median in terms of PS Ratio. The reason we use PS Ratio instead of PE Ratio or PB Ratio is because PS Ratio is independent of profit margin, and can be applied to a broader range of situations.
The historical rank and industry rank for Nagaoka International's Median PS Value or its related term are showing as below:
TSE:6239'
s Price-to-Median-PS-Value Range Over the Past 10 Years
Min: 1.77 Med: 1.96 Max: 1.96
Current: 1.78
During the past 12 years, the highest Price to Median PS Value of Nagaoka International was 1.96. The lowest was 1.77. And the median was 1.96.
TSE:6239's Price-to-Median-PS-Value is ranked worse than 81.01% of 553
companies
in the Oil & Gas industry
Industry Median: 1.12
vs TSE:6239: 1.78
Nagaoka International (TSE:6239) Median PS Value Explanation
This valuation method assumes that the stock valuation will revert to its historical (10-Year) mean in terms of PS Ratio. The reason we use PS Ratio instead of PE Ratio or PB Ratio
is because PS Ratio is independent of profit margin, and can be applied to a broader range of situations.
It also assumes that over time the profit margin is constant. If a company increases its profit margin to a sustainable level, this value might under-estimate its value. If it has permanent declined profit margins, this may over-estimate the company's value.
Nagaoka International's Price to Median PS Value for today is calculated as
Price to Median PS Value
=
Share Price
/
Median PS Value
=
1322.00
/
741.24
=
1.78
* 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.
Nagaoka International Median PS Value Related Terms
Nagaoka International Median PS Value Historical Data
* Premium members only.
The historical data trend for Nagaoka International's Median PS Value 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:6239 vs VLO, MPC, PSX: Median PS Value Comparison
For the Oil & Gas Refining & Marketing subindustry, Nagaoka International's Price-to-Median-PS-Value, along with its competitors' market caps and Price-to-Median-PS-Value 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.
Nagaoka International Price-to-Median-PS-Value vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Nagaoka International's Price-to-Median-PS-Value distribution charts can be found below:
* The bar in red indicates where Nagaoka International's Price-to-Median-PS-Value falls into.
10-Year Median PS Ratio is 0.7939.
Nagaoka International'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933.638.
* 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.
Nagaoka International (TSE:6239) has a Median PS Value of 円741.24 as of Jul. 15, 2026. Median price-sales value is the stock value based on a company's 10-year median price-sales ratio, View historical data on Nagaoka International and its competitors. This is 37718% above median its historical median of 1.96. Over the past decade, Nagaoka International's Median PS Value has ranged from 1.77 to 1.96. According to the industry distribution chart, Nagaoka International ranks #448 out of 553 companies in the Oil & Gas industry, placing it in the top 81%.
Is Nagaoka International's Median PS Value too high?
Nagaoka International's current Median PS Value of 円741.24 is 37718% above median its 10-year median of 1.96. Over the past 10 years, this metric has ranged from a low of 1.77 to a high of 1.96. Based on the distribution chart, Nagaoka International ranks #448 out of 553 companies in the Oil & Gas industry, which is in the bottom quartile relative to peers. Overall, Nagaoka International has a GF Score™ of 63/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Nagaoka International's Median PS Value compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Nagaoka International ranks #448 out of 553 companies for Median PS Value. This places Nagaoka International in the lower half of its industry. The industry median Median PS Value is 1.12. Historically, Nagaoka International's own Median PS Value has ranged from 1.77 to 1.96 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 Median PS Value for an Oil & Gas company?
The median Median PS Value among Oil & Gas companies is 1.12, based on 553 companies in the industry. Companies in the top quartile (top 25%) have a Median PS Value significantly above this median, while those in the bottom quartile fall well below. However, Median PS Value 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 Median PS Value mean?
A high Median PS Value can signal that a stock is expensive relative to its fundamentals. Median price-sales value is the stock value based on a company's 10-year median price-sales ratio, View historical data on Nagaoka International and its competitors. For the Oil & Gas industry, the median Median PS Value is 1.12 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Nagaoka International's current Median PS Value is 円741.24, which is 37718% above median its own 10-year median of 1.96. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nagaoka International stock overvalued right now?
Based on GuruFocus' analysis, Nagaoka International (TSE:6239) is currently considered Significantly Overvalued. The stock's GF Value™ is 円889.34, compared to a current price of 円1,322.00 — trading 48.6% above its estimated fair value. The current Median PS Value is 円741.24, which is 37718% above median its 10-year median of 1.96. Nagaoka International's overall GF Score™ is 63/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Median PS Value calculated?
Median PS Value is calculated from a company's financial statements. For Nagaoka International (TSE:6239), the current Median PS Value is 円741.24 as of Jul. 15, 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 Nagaoka International (TSE:6239) Overvalued in 2026?
Based on GuruFocus' analysis, Nagaoka International stock appears to be overvalued.
The current stock price of 円1,322.00 is trading 48.6% above its estimated GF Value™ of 円889.34.
GuruFocus considers Nagaoka International to be Significantly Overvalued.
Key valuation signals for TSE:6239:
Median PS Value: 円741.24 (37718% above median its 10-year median of 1.96)
GF Value™: 円889.34 vs. price of 円1,322.00 (48.6% above fair value)
No single metric tells the full story. See the TSE:6239 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Nagaoka International Corp is engaged in the manufacturing and sale of equipment and systems for energy and water-related industries. The company has two reportable segments: energy-related business and water-related business. The energy-related business focuses on producing screen internals and internal equipment for oil refineries and petrochemical plants. The water-related business is involved in the manufacture and sale of water intake screens, Chemiless and Hisys systems, and the construction of water treatment plants. It generates the majority of its revenue from the Energy-related business segment.
63GF Score
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