IDKOF (Idemitsu Kosan Co) Growth Rank: 4 (As of Jul. 30, 2026) — Near Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

IDKOF Idemitsu Kosan Co Ltd IDKOF
73 GF Score
Price $7.65
GF Value $6.73
Valuation Modestly Overvalued
! 4 Warning Signs
View Full Analysis

What is Idemitsu Kosan Co Growth Rank?

Idemitsu Kosan Co IDKOF 73 Growth Rank is 4 as of Jul. 30, 2026, which is at its 10-year median of 4.00. GuruFocus rates IDKOF with a GF Score™ of 73/100 and a GF Value™ of $6.73 (Modestly Overvalued). The stock has 4 warning signs investors should review.

Idemitsu Kosan Co has the Growth Rank of 4.

GuruFocus Growth Rank measures the growth of a company in terms of its revenue and profitability, rated on a scale from 1 to 10. Historically, the companies with the highest growth ranks performed the best over the long term. It is calculated using the following criteria:

1. 5-year revenue growth rate, the higher, the better.
2. 3-year revenue growth rate, the higher, the better.
3. 5-year EBITDA growth rate, the higher, the better.
4. The predictability of 5-year revenue. The most consistent it is, the higher the rank.

A higher score reflects a greater ability to drive business growth, with companies considered to have strong and sustainable expansion potential. Conversely, a lower score indicates challenges in achieving consistent growth and scalability.

GuruFocus found that the Growth Rank is the second of the two most-sensitive parameters among the five parameters checked. Please click GF Score to see more details on GF Score's 5 Key Aspects of Analysis.

Please note that we are using the five-year EBITDA growth rate as a parameter, so the company needs to have had positive growth over that time. The reason we use EBITDA instead of earnings per share is that with EBITDA, we can rank a lot more companies since a company may have positive EBITDA but negative EPS. Since we are looking at the growth here, EBITDA gives us a pretty clear picture about the growth in the company's business operations.

Idemitsu Kosan Co Growth Rank Related Terms

IDKOF vs MPC, VLO, PSX: Growth Rank Comparison

For the Oil & Gas Refining & Marketing subindustry, Idemitsu Kosan Co's Growth Rank, along with its competitors' market caps and Growth Rank 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 Growth Rank vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Idemitsu Kosan Co's Growth Rank distribution charts can be found below:

* The bar in red indicates where Idemitsu Kosan Co's Growth Rank falls into.


IDKOF
73GF Score
Idemitsu Kosan Co Ltd IDKOF
Growth Rank is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis
Frequently Asked Questions Learn more about Growth Rank →
What does a Growth Rank of 4 mean?
Idemitsu Kosan Co (IDKOF) has a Growth Rank of 4 as of Jul. 30, 2026. Growth Rank measures the growth of a company in terms of its revenue and profitability. View historical data on Idemitsu Kosan Co and its competitors. This is near median its historical median of 4.00. Over the past decade, Idemitsu Kosan Co's Growth Rank has ranged from 1.00 to 9.00.
Is Idemitsu Kosan Co's Growth Rank too high?
Idemitsu Kosan Co's current Growth Rank of 4 is near median its 10-year median of 4.00. Over the past 10 years, this metric has ranged from a low of 1.00 to a high of 9.00. Overall, Idemitsu Kosan Co has a GF Score™ of 73/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Idemitsu Kosan Co's Growth Rank compare to MPC and VLO?
Idemitsu Kosan Co's Growth Rank of 4 can be compared against companies in the Oil & Gas industry. Historically, Idemitsu Kosan Co's own Growth Rank has ranged from 1.00 to 9.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Growth Rank for an Oil & Gas company?
A good Growth Rank depends on the Oil & Gas industry context. However, Growth Rank 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 Growth Rank mean?
A high Growth Rank can signal that a stock is expensive relative to its fundamentals. Growth Rank measures the growth of a company in terms of its revenue and profitability. View historical data on Idemitsu Kosan Co and its competitors. Idemitsu Kosan Co's current Growth Rank is 4, which is near median its own 10-year median of 4.00. 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 $6.73, compared to a current price of $7.65 — trading 13.7% above its estimated fair value. The current Growth Rank is 4, which is near median its 10-year median of 4.00. Idemitsu Kosan Co's overall GF Score™ is 73/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Growth Rank calculated?
Growth Rank is calculated from a company's financial statements. For Idemitsu Kosan Co (IDKOF), the current Growth Rank is 4 as of Jul. 30, 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 $7.65 is trading 13.7% above its estimated GF Value™ of $6.73. GuruFocus considers Idemitsu Kosan Co to be Modestly Overvalued.

Key valuation signals for IDKOF:

  • Growth Rank: 4 (near median its 10-year median of 4.00)
  • GF Value™: $6.73 vs. price of $7.65 (13.7% above fair value)
  • GF Score™: 73/100 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.
73GF Score

Get the complete analysis for IDKOF

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

$7.65
Price
$6.73
GF Value