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Nagaoka InternationalTSE:6239 -1.05%63 PEG Ratio is 1.69 as of Jul. 15, 2026, which is 90% above its 10-year median of 0.89. 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 305 Oil & Gas companies, Nagaoka International ranks worse than 67.54% on this metric.
* The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
The historical rank and industry rank for Nagaoka International's PEG Ratio or its related term are showing as below:
TSE:6239'
s PEG Ratio Range Over the Past 10 Years
Min: 0.24 Med: 0.89 Max: 4.51
Current: 1.69
During the past 12 years, Nagaoka International's highest PEG Ratio was 4.51. The lowest was 0.24. And the median was 0.89.
TSE:6239's PEG Ratio is ranked worse than 67.54% of 305
companies
in the Oil & Gas industry
Industry Median: 0.96
vs TSE:6239: 1.69
Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.
Nagaoka International (TSE:6239) PEG Ratio Explanation
To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.
* 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 Oil & Gas Refining & Marketing subindustry, Nagaoka International's PEG Ratio, along with its competitors' market caps and PEG 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.
Nagaoka International PEG Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Nagaoka International's PEG Ratio distribution charts can be found below:
* The bar in red indicates where Nagaoka International's PEG Ratio falls into.
* 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.
* Note: The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
Nagaoka International (TSE:6239) has a PEG Ratio of 1.69 as of Jul. 15, 2026. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on Nagaoka International and its competitors. This is 90% above median its historical median of 0.89. Over the past decade, Nagaoka International's PEG Ratio has ranged from 0.24 to 4.51. According to the industry distribution chart, Nagaoka International ranks #206 out of 305 companies in the Oil & Gas industry, placing it in the top 67.5%.
Is Nagaoka International's PEG Ratio too high?
Nagaoka International's current PEG Ratio of 1.69 is 90% above median its 10-year median of 0.89. Over the past 10 years, this metric has ranged from a low of 0.24 to a high of 4.51. The Oil & Gas industry median PEG Ratio is 0.96. Nagaoka International's value of 1.69 is 76% above this industry median. Based on the distribution chart, Nagaoka International ranks #206 out of 305 companies in the Oil & Gas industry, which is below the industry midpoint. 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 PEG Ratio compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Nagaoka International ranks #206 out of 305 companies for PEG Ratio. This places Nagaoka International in the lower half of its industry. The industry median PEG Ratio is 0.96. Nagaoka International's value of 1.69 is 76% above this benchmark. Historically, Nagaoka International's own PEG Ratio has ranged from 0.24 to 4.51 over the past decade. While the company's 10-year median is 0.89 vs. the industry median of 0.96, Nagaoka International 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 PEG Ratio for an Oil & Gas company?
The median PEG Ratio among Oil & Gas companies is 0.96, based on 305 companies in the industry. Companies in the top quartile (top 25%) have a PEG Ratio significantly above this median, while those in the bottom quartile fall well below. However, PEG Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Nagaoka International's current PEG Ratio of 1.69 is 76% 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 PEG Ratio mean?
A high PEG Ratio can signal that a stock is expensive relative to its fundamentals. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on Nagaoka International and its competitors. For the Oil & Gas industry, the median PEG Ratio is 0.96 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Nagaoka International's current PEG Ratio is 1.69, which is 90% above median its own 10-year median of 0.89. 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 PEG Ratio is 1.69, which is 90% above median its 10-year median of 0.89 and 76% above the Oil & Gas industry median of 0.96. 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 PEG Ratio calculated?
PEG Ratio is calculated from a company's financial statements. For Nagaoka International (TSE:6239), the current PEG Ratio is 1.69 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:
PEG Ratio: 1.69 (90% above median its 10-year median of 0.89)
GF Value™: 円889.34 vs. price of 円1,322.00 (48.6% above fair value)
Industry Position: 76% above the Oil & Gas median (#206 of 305)
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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