IDKOF (Idemitsu Kosan Co) 5-Year Yield-on-Cost %: 5.05 (As of Jul. 08, 2026) — Near Median


IDKOF Idemitsu Kosan Co Ltd IDKOF
64 GF Score
Price $7.50
GF Value $6.73
Valuation Modestly Overvalued
! 4 Warning Signs
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What is Idemitsu Kosan Co 5-Year Yield-on-Cost %?

Idemitsu Kosan Co IDKOF 64 5-Year Yield-on-Cost % is 5.05 as of Jul. 08, 2026, which is 9% below its 10-year median of 5.58. GuruFocus rates IDKOF with a GF Score™ of 64/100 and a GF Value™ of $6.73 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 504 Oil & Gas companies, Idemitsu Kosan Co ranks worse than 52.78% on this metric.

Idemitsu Kosan Co's yield on cost for the quarter that ended in Mar. 2026 was 5.05.


The historical rank and industry rank for Idemitsu Kosan Co's 5-Year Yield-on-Cost % or its related term are showing as below:

IDKOF' s 5-Year Yield-on-Cost % Range Over the Past 10 Years
Min: 2.13   Med: 5.58   Max: 12.15
Current: 5.05


During the past 13 years, Idemitsu Kosan Co's highest Yield on Cost was 12.15. The lowest was 2.13. And the median was 5.58.


IDKOF's 5-Year Yield-on-Cost % is ranked worse than
52.78% of 504 companies
in the Oil & Gas industry
Industry Median: 5.31 vs IDKOF: 5.05

Idemitsu Kosan Co  (OTCPK:IDKOF) 5-Year Yield-on-Cost % Explanation

Of course the risk here is that the company may not raise its dividends as it did before. The key is to select the companies that can consistently raise its dividends. Usually companies with long history of raising dividends tend to do so.


Idemitsu Kosan Co 5-Year Yield-on-Cost % Related Terms


IDKOF vs VLO, MPC, PSX: 5-Year Yield-on-Cost % Comparison

For the Oil & Gas Refining & Marketing subindustry, Idemitsu Kosan Co's 5-Year Yield-on-Cost %, along with its competitors' market caps and 5-Year Yield-on-Cost % 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 5-Year Yield-on-Cost % vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Idemitsu Kosan Co's 5-Year Yield-on-Cost % distribution charts can be found below:

* The bar in red indicates where Idemitsu Kosan Co's 5-Year Yield-on-Cost % falls into.


IDKOF
64GF Score
Idemitsu Kosan Co Ltd IDKOF
5-Year Yield-on-Cost % is just one metric. See GF Score™, valuation, warning signs, and more.
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Idemitsu Kosan Co 5-Year Yield-on-Cost % Calculation

Dividend Yield % and dividend growth of a stock is an important factor for income investors. But if company A raises its dividend constantly faster than company B, company A's future dividend yield might be much higher than Company B's even if their yields are the same now and their stock prices do not change.

Yield on Cost assumes that you buy and the stock today, and hold it for 5 years. If the company raises it dividends at the same rate as it did over the past 5 years, the dividends investors receive annually in 5 years relative to the stock price today.

Therefore, Yield-on-Cost of Idemitsu Kosan Co is calculated as

Yield-on-Cost=Dividend Yield %*(1+Dividend Growth Rate)^5
Frequently Asked Questions Learn more about 5-Year Yield-on-Cost % →
What does a 5-Year Yield-on-Cost % of 5.05 mean?
Idemitsu Kosan Co (IDKOF) has a 5-Year Yield-on-Cost % of 5.05 as of Jul. 08, 2026. 5-Year Yield on Cost measures the expected yield based on a company's current yield and 5-year dividend growth. View historical data on Idemitsu Kosan Co and its competitors. This is near median its historical median of 5.58. Over the past decade, Idemitsu Kosan Co's 5-Year Yield-on-Cost % has ranged from 2.13 to 12.15. According to the industry distribution chart, Idemitsu Kosan Co ranks #266 out of 504 companies in the Oil & Gas industry, placing it in the top 52.8%.
Is Idemitsu Kosan Co's 5-Year Yield-on-Cost % too high?
Idemitsu Kosan Co's current 5-Year Yield-on-Cost % of 5.05 is near median its 10-year median of 5.58. Over the past 10 years, this metric has ranged from a low of 2.13 to a high of 12.15. The Oil & Gas industry median 5-Year Yield-on-Cost % is 5.31. Idemitsu Kosan Co's value of 5.05 is 4.9% below this industry median. Based on the distribution chart, Idemitsu Kosan Co ranks #266 out of 504 companies in the Oil & Gas industry, which is below the industry midpoint. Overall, Idemitsu Kosan Co has a GF Score™ of 64/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Idemitsu Kosan Co's 5-Year Yield-on-Cost % compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Idemitsu Kosan Co ranks #266 out of 504 companies for 5-Year Yield-on-Cost %. This places Idemitsu Kosan Co in the lower half of its industry. The industry median 5-Year Yield-on-Cost % is 5.31. Idemitsu Kosan Co's value of 5.05 is 4.9% below this benchmark. Historically, Idemitsu Kosan Co's own 5-Year Yield-on-Cost % has ranged from 2.13 to 12.15 over the past decade. While the company's 10-year median is 5.58 vs. the industry median of 5.31, Idemitsu Kosan Co has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 5-Year Yield-on-Cost % for an Oil & Gas company?
The median 5-Year Yield-on-Cost % among Oil & Gas companies is 5.31, based on 504 companies in the industry. Companies in the top quartile (top 25%) have a 5-Year Yield-on-Cost % significantly above this median, while those in the bottom quartile fall well below. However, 5-Year Yield-on-Cost % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Idemitsu Kosan Co's current 5-Year Yield-on-Cost % of 5.05 is 4.9% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high 5-Year Yield-on-Cost % mean?
A high 5-Year Yield-on-Cost % can signal that a stock is expensive relative to its fundamentals. 5-Year Yield on Cost measures the expected yield based on a company's current yield and 5-year dividend growth. View historical data on Idemitsu Kosan Co and its competitors. For the Oil & Gas industry, the median 5-Year Yield-on-Cost % is 5.31 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Idemitsu Kosan Co's current 5-Year Yield-on-Cost % is 5.05, which is near median its own 10-year median of 5.58. 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 $7.50 — trading 11.4% above its estimated fair value. The current 5-Year Yield-on-Cost % is 5.05, which is near median its 10-year median of 5.58 and 4.9% below the Oil & Gas industry median of 5.31. Idemitsu Kosan Co's overall GF Score™ is 64/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 5-Year Yield-on-Cost % calculated?
5-Year Yield-on-Cost % is calculated from a company's financial statements. For Idemitsu Kosan Co (IDKOF), the current 5-Year Yield-on-Cost % is 5.05 as of Jul. 08, 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 11.4% above its estimated GF Value™ of $6.73. GuruFocus considers Idemitsu Kosan Co to be Modestly Overvalued.

Key valuation signals for IDKOF:

  • 5-Year Yield-on-Cost %: 5.05 (near median its 10-year median of 5.58)
  • GF Value™: $6.73 vs. price of $7.50 (11.4% above fair value)
  • GF Score™: 64/100 with 4 warning signs
  • Industry Position: 4.9% below the Oil & Gas median (#266 of 504)

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.
64GF Score

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5-Year Yield-on-Cost % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$7.50
Price
$6.73
GF Value