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Idemitsu Kosan CoIDKOF 68 Owner Earnings per Share (TTM) is 0.00 as of Mar. 2026. GuruFocus rates IDKOF with a GF Score™ of 68/100 and a GF Value™ of $6.70 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 454 Oil & Gas companies, Idemitsu Kosan Co ranks worse than 220264.1% on this metric.
"These represent (a) reported earnings plus (b) depreciation, depletion, amortization, and certain other non-cash charges...less (c) the average annual amount of capitalized expenditures for plant and equipment, etc. that the business requires to fully maintain its long-term competitive position and its unit volume (If the business requires additional working capital to maintain its competitive position and unit volume, the increment also should be included in (c))...Our owner-earnings equation does not yield the deceptively precise figures provided by GAAP, since (c) must be a guess - and one sometimes very difficult to make. Despite this problem, we consider the owner earnings figure, not the GAAP figure, to be the relevant item for valuation purposes - both for investors in buying stocks and for managers in buying entire businesses...All of this points up the absurdity of the 'cash flow' numbers that are often set forth in Wall Street reports. These numbers routinely include (a) plus (b) - but do not subtract (c)."
Idemitsu Kosan Co does not have enough data to calculate Owner Earnings per Share (TTM), so as Price-to-Owner-Earnings ratio.
The historical rank and industry rank for Idemitsu Kosan Co's Owner Earnings per Share (TTM) or its related term are showing as below:
IDKOF's Price-to-Owner-Earnings is not ranked *
in the Oil & Gas industry.
Industry Median: 11.58 * Ranked among companies with meaningful Price-to-Owner-Earnings only.
Assumption: Companies usually do not report maintenance capital expenditures and growth capital expenditures separately. Here we use estimated numbers and average them over 5 years. The method to estimate maintenance capital expenditures can be found in above part 4.
Note: GuruFocus' Change In Working Capital is provided by Morningstar. It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement from original financial report. And it includes non-current parts of assets and liabilities.
Idemitsu Kosan Co Owner Earnings per Share (TTM) Related Terms
Idemitsu Kosan Co Owner Earnings per Share (TTM) Historical Data
* Premium members only.
The historical data trend for Idemitsu Kosan Co's Owner Earnings per Share (TTM) 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.
Idemitsu Kosan Co Owner Earnings per Share (TTM) Chart
IDKOF vs VLO, MPC, PSX: Owner Earnings per Share (TTM) Comparison
For the Oil & Gas Refining & Marketing subindustry, Idemitsu Kosan Co's Price-to-Owner-Earnings, along with its competitors' market caps and Price-to-Owner-Earnings 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 Price-to-Owner-Earnings vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Idemitsu Kosan Co's Price-to-Owner-Earnings distribution charts can be found below:
* The bar in red indicates where Idemitsu Kosan Co's Price-to-Owner-Earnings falls into.
"These represent (a) reported earnings plus (b) depreciation, depletion, amortization, and certain other non-cash charges...less (c) the average annual amount of capitalized expenditures for plant and equipment, etc. that the business requires to fully maintain its long-term competitive position and its unit volume. (If the business requires additional working capital to maintain its competitive position and unit volume, the increment also should be included in (c))...Our owner-earnings equation does not yield the deceptively precise figures provided by GAAP, since (c) must be a guess - and one sometimes very difficult to make. Despite this problem, we consider the owner earnings figure, not the GAAP figure, to be the relevant item for valuation purposes - both for investors in buying stocks and for managers in buying entire businesses...All of this points up the absurdity of the 'cash flow' numbers that are often set forth in Wall Street reports. These numbers routinely include (a) plus (b) - but do not subtract (c)."
What does a Owner Earnings per Share (TTM) of 0.00 mean?
Idemitsu Kosan Co (IDKOF) has a Owner Earnings per Share (TTM) of 0.00 as of Mar. 2026. Warren Buffett defined owner earnings as reported earnings plus depreciation less average maintenance capital expenditure. View historical data on Idemitsu Kosan Co. According to the industry distribution chart, Idemitsu Kosan Co ranks #999999 out of 454 companies in the Oil & Gas industry.
Is Idemitsu Kosan Co's Owner Earnings per Share (TTM) too high?
Idemitsu Kosan Co's current Owner Earnings per Share (TTM) is 0.00. Based on the distribution chart, Idemitsu Kosan Co ranks #999999 out of 454 companies in the Oil & Gas industry, which is in the bottom quartile relative to peers. 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 Owner Earnings per Share (TTM) compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Idemitsu Kosan Co ranks #999999 out of 454 companies for Owner Earnings per Share (TTM). This places Idemitsu Kosan Co in the lower half of its industry. The industry median Owner Earnings per Share (TTM) is 11.58. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Owner Earnings per Share (TTM) for an Oil & Gas company?
The median Owner Earnings per Share (TTM) among Oil & Gas companies is 11.58, based on 454 companies in the industry. Companies in the top quartile (top 25%) have a Owner Earnings per Share (TTM) significantly above this median, while those in the bottom quartile fall well below. However, Owner Earnings per Share (TTM) 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 Owner Earnings per Share (TTM) mean?
A high Owner Earnings per Share (TTM) can signal that a stock is expensive relative to its fundamentals. Warren Buffett defined owner earnings as reported earnings plus depreciation less average maintenance capital expenditure. View historical data on Idemitsu Kosan Co. For the Oil & Gas industry, the median Owner Earnings per Share (TTM) is 11.58 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Idemitsu Kosan Co's current Owner Earnings per Share (TTM) is 0.00. 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 $6.70, compared to a current price of $7.50 — trading 11.9% above its estimated fair value. The current Owner Earnings per Share (TTM) is 0.00. 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 Owner Earnings per Share (TTM) calculated?
Owner Earnings per Share (TTM) is calculated from a company's financial statements. For Idemitsu Kosan Co (IDKOF), the current Owner Earnings per Share (TTM) is 0.00 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 11.9% above its estimated GF Value™ of $6.70.
GuruFocus considers Idemitsu Kosan Co to be Modestly Overvalued.
Key valuation signals for IDKOF:
Owner Earnings per Share (TTM): 0.00
GF Value™: $6.70 vs. price of $7.50 (11.9% 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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