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Graham Number is a figure that measures a stock's fundamental value by taking into account the company's earnings per share and book value per share. The Graham number is the upper bound of the price range that a defensive investor should pay for the stock. According to the theory, any stock price below the Graham number is considered undervalued, and thus worth investing in.
As of today (2026-09-04), the stock price of Insource Co is 円736.00. Insource Co's graham number for the quarter that ended in Mar. 2026 was 円391.16. Therefore, Insource Co's Price to Graham Number ratio for today is 1.86.
The historical rank and industry rank for Insource Co's Graham Number or its related term are showing as below:
TSE:6200'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 1.73 Med: 6.48 Max: 12.44
Current: 1.73
During the past 11 years, the highest Price to Graham Number ratio of Insource Co was 12.44. The lowest was 1.73. And the median was 6.48.
TSE:6200's Price-to-Graham-Number is ranked worse than 64.71% of 153
companies
in the Education industry
Industry Median: 1.23
vs TSE:6200: 1.73
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Ben Graham actually did not publish a formula like this. But he wrote in The Intelligent Investor (1948 version) regarding to the criteria for purchases:
Current price should not be more than 15 times average earnings of the past three years.
Current price should not be more than 1.5 times the book value last reported. However, a multiplier of earnings below 15 could justify a correspondingly higher multiplier of assets. As a rule of thumb we suggest that the product of the multiplier times the ratio of price to book value should not exceed 22.5. (This figure corresponds to 15 times earnings and 1.5 times book value. It would admit an issue selling at only 9 times earnings and 2.5 times asset value, etc.)
Unlike valuation methods such as DCF or Discounted Earnings, the Graham number does not take growth into the valuation. Unlike the valuation methods based on book value alone, it takes into account the earnings power. Therefore, the Graham Number is a combination of asset valuation and earnings power valuation.
In general, the Graham number is a very conservative way of valuing a stock. It cannot be applied to companies with negative book values.
Insource Co's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
736.00
/
395.77
=
1.86
* 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.
Be Aware
Please keep these in mind:
1. Graham Number does not take growth into account. Therefore it underestimates the values of the companies that have good earnings growth. We feel that if the earnings per share grows more than 10% a year, Graham Number underestimates the value.
2. Graham Number punishes the companies that have temporarily low earnings. Therefore, an average of earnings makes more sense in the calculation of Graham Number.
3. Graham Numbers underestimates companies that are light with book.
Insource Co Graham Number Related Terms
Insource Co Graham Number Historical Data
* Premium members only.
The historical data trend for Insource Co's Graham Number 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.
TSE:6200 vs EDU, TAL, LAUR: Graham Number Comparison
For the Education & Training Services subindustry, Insource Co's Price-to-Graham-Number, along with its competitors' market caps and Price-to-Graham-Number 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.
Insource Co Price-to-Graham-Number vs Education Industry
For the Education industry and Consumer Defensive sector, Insource Co's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Insource Co's Price-to-Graham-Number 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.
Insource Co (TSE:6200) has a Graham Number of 円391.16 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Insource Co and its competitors. According to the industry distribution chart, Insource Co ranks #99 out of 153 companies in the Education industry, placing it in the top 64.7%.
Is Insource Co's Graham Number too high?
Insource Co's current Graham Number is 円391.16. Based on the distribution chart, Insource Co ranks #99 out of 153 companies in the Education industry, which is below the industry midpoint. Overall, Insource Co has a GF Score™ of 89/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Insource Co's Graham Number compare to EDU and TAL?
According to the Education industry distribution chart, Insource Co ranks #99 out of 153 companies for Graham Number. This places Insource Co in the lower half of its industry. The industry median Graham Number is 1.23. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Graham Number for an Education company?
The median Graham Number among Education companies is 1.23, based on 153 companies in the industry. Companies in the top quartile (top 25%) have a Graham Number significantly above this median, while those in the bottom quartile fall well below. However, Graham Number 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 Graham Number mean?
A high Graham Number can signal that a stock is expensive relative to its fundamentals. The Graham Number values a company based on its per-share earnings and book value. View historical data on Insource Co and its competitors. For the Education industry, the median Graham Number is 1.23 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Insource Co's current Graham Number is 円391.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Insource Co stock overvalued right now?
Based on GuruFocus' analysis, Insource Co (TSE:6200) is currently considered Significantly Undervalued. The stock's GF Value™ is 円1,191.84, compared to a current price of 円736.00 — trading 38.2% below its estimated fair value. The current Graham Number is 円391.16. Insource Co's overall GF Score™ is 89/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Graham Number calculated?
Graham Number is calculated from a company's financial statements. For Insource Co (TSE:6200), the current Graham Number is 円391.16 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 Insource Co (TSE:6200) Overvalued in 2026?
Based on GuruFocus' analysis, Insource Co stock appears to be undervalued.
The current stock price of 円736.00 is trading 38.2% below its estimated GF Value™ of 円1,191.84.
GuruFocus considers Insource Co to be Significantly Undervalued.
Key valuation signals for TSE:6200:
Graham Number: 円391.16
GF Value™: 円1,191.84 vs. price of 円736.00 (38.2% below fair value)
No single metric tells the full story. See the TSE:6200 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Insource Co Ltd provides corporate training and business-related open courses. Also, it offers HR related system and transition support for employment, as well as production of e-learning and corporate movies. The group consists of a single segment, Education Services. It provides human resource development and organizational consulting services, mainly through four businesses: Instructor-Dispatch Training Services and Open Seminar Services related to training, IT Services related to the IT implementation of human resources departments, and Other Businesses.
89GF Score
Get the complete analysis for TSE:6200
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