IDKOF (Idemitsu Kosan Co) Other Operating Expense: $3,572 Mil (TTM As of Mar. 2026)


IDKOF Idemitsu Kosan Co Ltd IDKOF
68 GF Score
Price $7.50
GF Value $6.74
Valuation Modestly Overvalued
! 4 Warning Signs
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What is Idemitsu Kosan Co Other Operating Expense?

Idemitsu Kosan Co IDKOF 68 Other Operating Expense is $3,572 Mil as of Mar. 2026. GuruFocus rates IDKOF with a GF Score™ of 68/100 and a GF Value™ of $6.74 (Modestly Overvalued). The stock has 4 warning signs investors should review.

Idemitsu Kosan Co's Other Operating Expense for the three months ended in Mar. 2026 was $930 Mil. Its Other Operating Expense for the trailing twelve months (TTM) ended in Mar. 2026 was $3,572 Mil.

Idemitsu Kosan Co's quarterly Other Operating Expense declined from Sep. 2025 ($896 Mil) to Dec. 2025 ($876 Mil) but then increased from Dec. 2025 ($876 Mil) to Mar. 2026 ($930 Mil).

Idemitsu Kosan Co's annual Other Operating Expense increased from Mar. 2024 ($3,343 Mil) to Mar. 2025 ($3,537 Mil) but then declined from Mar. 2025 ($3,537 Mil) to Mar. 2026 ($3,417 Mil).

Idemitsu Kosan Co Other Operating Expense Historical Data

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The historical data trend for Idemitsu Kosan Co's Other Operating Expense 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 Other Operating Expense Chart

Idemitsu Kosan Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Other Operating Expense
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3,792.65 3,827.36 3,342.74 3,537.06 3,417.39

Idemitsu Kosan Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Other Operating Expense Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 962.10 869.44 896.35 875.85 929.94
IDKOF
68GF Score
Idemitsu Kosan Co Ltd IDKOF
Other Operating Expense is just one metric. See GF Score™, valuation, warning signs, and more.
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Idemitsu Kosan Co Other Operating Expense Calculation

GuruFocus uses a standardized financial statement format for all companies. For non-financial companies, GuruFocus lists Selling, General, & Admin. Expense, , Research & Development, and Other Operating Expense under the "Total Operating Expense" section.

Other Operating Expense sometimes includes:
Restructuring, and merger
Acquisition related and other
Litigation settlement charge
Other (too numerous to list)

Some companies can and do choose to report each of these items separately. Yet, there are a variety of Other Operating Expense which are simply too numerous to list.

Other Operating Expense for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $3,572 Mil.

* 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.

What does a Other Operating Expense of $3,572 Mil mean?
Idemitsu Kosan Co (IDKOF) has a Other Operating Expense of $3,572 Mil as of Mar. 2026. Other operating expenses that a company records on its income statement. View historical data on Idemitsu Kosan Co and its competitors.
Is Idemitsu Kosan Co's Other Operating Expense too high?
Idemitsu Kosan Co's current Other Operating Expense is $3,572 Mil. 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 Other Operating Expense compare to VLO and MPC?
Idemitsu Kosan Co's Other Operating Expense of $3,572 Mil can be compared against companies in the Oil & Gas industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Other Operating Expense for an Oil & Gas company?
A good Other Operating Expense depends on the Oil & Gas industry context. However, Other Operating Expense 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 Other Operating Expense mean?
A high Other Operating Expense can signal that a stock is expensive relative to its fundamentals. Other operating expenses that a company records on its income statement. View historical data on Idemitsu Kosan Co and its competitors. Idemitsu Kosan Co's current Other Operating Expense is $3,572 Mil. 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 $6.74, compared to a current price of $7.50 — trading 11.3% above its estimated fair value. The current Other Operating Expense is $3,572 Mil. 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 Other Operating Expense calculated?
Other Operating Expense is calculated from a company's financial statements. For Idemitsu Kosan Co (IDKOF), the current Other Operating Expense is $3,572 Mil 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 11.3% above its estimated GF Value™ of $6.74. GuruFocus considers Idemitsu Kosan Co to be Modestly Overvalued.

Key valuation signals for IDKOF:

  • Other Operating Expense: $3,572 Mil
  • GF Value™: $6.74 vs. price of $7.50 (11.3% above fair value)
  • GF Score™: 68/100 with 4 warning signs

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 Business Description

Industry EnergyOil & Gas
Address 1-2-1 Otemachi, Chiyoda-ku, Tokyo, JPN, 100-8321
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

Get the complete analysis for IDKOF

Other Operating Expense is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$7.50
Price
$6.74
GF Value