Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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 -1.13%74 3-Year ROIIC % is 35.40 as of Jun. 2025, which is 307% above its 10-year median of 8.70. GuruFocus rates TSE:6239 with a GF Score™ of 74/100 and a GF Value™ of 円891.45 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 924 Oil & Gas companies, Nagaoka International ranks better than 81.82% on this metric.
3-Year Return on Invested Incremental Capital (3-Year ROIIC %) measures the change in earnings as a percentage of change in investment over 3-year.
Nagaoka International's 3-Year ROIIC % for the quarter that ended in Jun. 2025 was 35.40%. High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
The industry rank for Nagaoka International's 3-Year ROIIC % or its related term are showing as below:
TSE:6239's 3-Year ROIIC % is ranked better than 81.82% of 924
companies
in the Oil & Gas industry
Industry Median: -0.005
vs TSE:6239: 35.40
Nagaoka International (TSE:6239) 3-Year ROIIC % Explanation
Return on Incremental Invested Capital (ROIIC) is an extension of Return on Investment Capital (ROIC). ROIC % tells investors how efficiently that profitability is earned per dollar of company capital. ROIIC narrows the focus even further and shows how profitable each additional unit of capital investment could be. ROIIC % is a more powerful metric than ROIC because it measures how much money the company can generate going forward on future capital investments.
High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
Be Aware
It's important to keep in mind that when tracking ROIIC, the metric is better suited to forecasting the trend of future returns rather than measuring current return on investment.
Nagaoka International 3-Year ROIIC % Related Terms
Nagaoka International 3-Year ROIIC % Historical Data
* Premium members only.
The historical data trend for Nagaoka International's 3-Year ROIIC % 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: 3-Year ROIIC % Comparison
For the Oil & Gas Refining & Marketing subindustry, Nagaoka International's 3-Year ROIIC %, along with its competitors' market caps and 3-Year ROIIC % 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 3-Year ROIIC % vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Nagaoka International's 3-Year ROIIC % distribution charts can be found below:
* The bar in red indicates where Nagaoka International's 3-Year ROIIC % 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.
** Annual data of NOPAT and Invested Capital was used to calculate 3-Year ROIIC %.
*** Please be aware that the ROIIC (Return on Invested Capital) calculations are based on company-level data using the primary share class. The calculated data provided is for demonstration purposes and may slightly differ from the results displayed in the title due to potential variations caused by currency exchange rate differences throughout the year.
Nagaoka International (TSE:6239) has a 3-Year ROIIC % of 35.40 as of Jun. 2025. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Nagaoka International and its competitors. This is 307% above median its historical median of 8.70. According to the industry distribution chart, Nagaoka International ranks #168 out of 924 companies in the Oil & Gas industry, placing it in the top 18.2%.
Is Nagaoka International's 3-Year ROIIC % too high?
Nagaoka International's current 3-Year ROIIC % of 35.40 is 307% above median its 10-year median of 8.70. Based on the distribution chart, Nagaoka International ranks #168 out of 924 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, Nagaoka International has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Nagaoka International's 3-Year ROIIC % compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Nagaoka International ranks #168 out of 924 companies for 3-Year ROIIC %. This places Nagaoka International in the top 18% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-Year ROIIC % for an Oil & Gas company?
A good 3-Year ROIIC % depends on the Oil & Gas industry context. However, 3-Year ROIIC % 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 3-Year ROIIC % mean?
A high 3-Year ROIIC % can signal that a stock is expensive relative to its fundamentals. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Nagaoka International and its competitors. Nagaoka International's current 3-Year ROIIC % is 35.40, which is 307% above median its own 10-year median of 8.70. 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891.45, compared to a current price of 円1,310.00 — trading 47% above its estimated fair value. The current 3-Year ROIIC % is 35.40, which is 307% above median its 10-year median of 8.70. Nagaoka International's overall GF Score™ is 74/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year ROIIC % calculated?
3-Year ROIIC % is calculated from a company's financial statements. For Nagaoka International (TSE:6239), the current 3-Year ROIIC % is 35.40 as of Jun. 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 Nagaoka International (TSE:6239) Overvalued in 2026?
Based on GuruFocus' analysis, Nagaoka International stock appears to be overvalued.
The current stock price of 円1,310.00 is trading 47% above its estimated GF Value™ of 円891.45.
GuruFocus considers Nagaoka International to be Significantly Overvalued.
Key valuation signals for TSE:6239:
3-Year ROIIC %: 35.40 (307% above median its 10-year median of 8.70)
GF Value™: 円891.45 vs. price of 円1,310.00 (47% 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.
74GF Score
Get the complete analysis for TSE:6239
3-Year ROIIC % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TSE:6239 has been successfully added to your 
