Idemitsu Kosan CoIDKOF 68 3-Year ROIIC % is -25.84 as of Mar. 2026. GuruFocus rates IDKOF with a GF Score™ of 68/100 and a GF Value™ of $6.71 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 925 Oil & Gas companies, Idemitsu Kosan Co ranks worse than 74.92% 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.
Idemitsu Kosan Co's 3-Year ROIIC % for the quarter that ended in Mar. 2026 was -25.84%. High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
The industry rank for Idemitsu Kosan Co's 3-Year ROIIC % or its related term are showing as below:
IDKOF's 3-Year ROIIC % is ranked worse than 74.92% of 925
companies
in the Oil & Gas industry
Industry Median: 0.01
vs IDKOF: -25.84
Idemitsu Kosan Co (OTCPK:IDKOF) 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.
Idemitsu Kosan Co 3-Year ROIIC % Related Terms
Idemitsu Kosan Co 3-Year ROIIC % Historical Data
* Premium members only.
The historical data trend for Idemitsu Kosan Co'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.
For the Oil & Gas Refining & Marketing subindustry, Idemitsu Kosan Co'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.
Idemitsu Kosan Co 3-Year ROIIC % vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Idemitsu Kosan Co's 3-Year ROIIC % distribution charts can be found below:
* The bar in red indicates where Idemitsu Kosan Co'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.
Idemitsu Kosan Co (IDKOF) has a 3-Year ROIIC % of -25.84 as of Mar. 2026. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Idemitsu Kosan Co and its competitors. According to the industry distribution chart, Idemitsu Kosan Co ranks #693 out of 925 companies in the Oil & Gas industry, placing it in the top 74.9%.
Is Idemitsu Kosan Co's 3-Year ROIIC % too high?
Idemitsu Kosan Co's current 3-Year ROIIC % is -25.84. Based on the distribution chart, Idemitsu Kosan Co ranks #693 out of 925 companies in the Oil & Gas industry, which is below the industry midpoint. Overall, Idemitsu Kosan Co has a GF Score™ of 68/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Idemitsu Kosan Co's 3-Year ROIIC % compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Idemitsu Kosan Co ranks #693 out of 925 companies for 3-Year ROIIC %. This places Idemitsu Kosan Co in the lower half of its industry. The industry median 3-Year ROIIC % is 0.01. 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?
The median 3-Year ROIIC % among Oil & Gas companies is 0.01, based on 925 companies in the industry. Companies in the top quartile (top 25%) have a 3-Year ROIIC % significantly above this median, while those in the bottom quartile fall well below. 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 Idemitsu Kosan Co and its competitors. For the Oil & Gas industry, the median 3-Year ROIIC % is 0.01 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Idemitsu Kosan Co's current 3-Year ROIIC % is -25.84. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Idemitsu Kosan Co stock overvalued right now?
Based on GuruFocus' analysis, Idemitsu Kosan Co (IDKOF) is currently considered Modestly Overvalued. The stock's GF Value™ is $6.71, compared to a current price of $7.50 — trading 11.8% above its estimated fair value. The current 3-Year ROIIC % is -25.84. Idemitsu Kosan Co's overall GF Score™ is 68/100 with 4 warning signs 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 Idemitsu Kosan Co (IDKOF), the current 3-Year ROIIC % is -25.84 as of Mar. 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 Idemitsu Kosan Co (IDKOF) Overvalued in 2026?
Based on GuruFocus' analysis, Idemitsu Kosan Co stock appears to be overvalued.
The current stock price of $7.50 is trading 11.8% above its estimated GF Value™ of $6.71.
GuruFocus considers Idemitsu Kosan Co to be Modestly Overvalued.
Key valuation signals for IDKOF:
3-Year ROIIC %: -25.84
GF Value™: $6.71 vs. price of $7.50 (11.8% above fair value)
No single metric tells the full story. See the IDKOF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Idemitsu Kosan Co Ltd engages in a variety of activities globally that include petroleum products, oil exploration and production, coal, and other businesses. The company operates through five segments. The Basic Chemicals segment makes and sells olefins and aroma products. Electricity/Renewable Energy covers thermal, solar, and wind power generation, electricity sales, and solar business. Fuel Oil handles production, trading, and import/export of refined petroleum. The Highly Functional Materials segment includes lubricants, chemicals, electronic materials, paving materials, and agri-bio. The Resource segment explores, develops, and sells crude oil, natural gas, and coal. Others cover insurance and intra-group services. It generates the majority of its revenue from the Fuel oil segment.
68GF Score
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