Watanabeto Co (TSE:1807) Graham Number: 円3,412.26 (As of Mar. 2026) — 947750% Above Median

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Director of Data and Quant Analytics at GuruFocus
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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.

TSE:1807 Watanabe Sato Co Ltd TSE:1807
61 GF Score
Price 円1,895.00
GF Value 円1,435.48
Valuation Significantly Overvalued
! 4 Warning Signs
View Full Analysis

What is Watanabeto Co Graham Number?

Watanabeto Co TSE:1807 61 Graham Number is 円3,412.26 as of Mar. 2026, which is 100% below its 10-year median of 0.36. GuruFocus rates TSE:1807 with a GF Score™ of 61/100 and a GF Value™ of 円1,435.48 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 1,210 Construction companies, Watanabeto Co ranks better than 79.09% on this metric.

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 (2026-08-21), the stock price of Watanabeto Co is 円1895.00. Watanabeto Co's graham number for the quarter that ended in Mar. 2026 was 円3,412.26. Therefore, Watanabeto Co's Price to Graham Number ratio for today is 0.56.

The historical rank and industry rank for Watanabeto Co's Graham Number or its related term are showing as below:

TSE:1807' s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.24   Med: 0.36   Max: 0.8
Current: 0.56

During the past 13 years, the highest Price to Graham Number ratio of Watanabeto Co was 0.80. The lowest was 0.24. And the median was 0.36.

TSE:1807's Price-to-Graham-Number is ranked better than
79.09% of 1210 companies
in the Construction industry
Industry Median: 0.99 vs TSE:1807: 0.56

Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.


Watanabeto Co  (TSE:1807) Graham Number Explanation

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.

Watanabeto Co's Price to Graham number Ratio for today is calculated as

Price to Graham number=Share Price (Today)/Graham number (Q: Mar. 2026 )
=1895.00/3,412.26
=0.56

* 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.


Watanabeto Co Graham Number Related Terms


Watanabeto Co Graham Number Historical Data

* Premium members only.

The historical data trend for Watanabeto 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.

Watanabeto Co Graham Number Chart

Watanabeto Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Graham Number
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4,597.52 1,540.41 3,807.96 3,311.63 3,413.31

Watanabeto Co Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
Graham Number 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 3,807.96 3,119.14 3,310.51 3,792.72 3,412.26

TSE:1807 vs PWR, FIX, EME: Graham Number Comparison

For the Engineering & Construction subindustry, Watanabeto 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.


Watanabeto Co Price-to-Graham-Number vs Construction Industry

For the Construction industry and Industrials sector, Watanabeto Co's Price-to-Graham-Number distribution charts can be found below:

* The bar in red indicates where Watanabeto Co's Price-to-Graham-Number falls into.


TSE:1807
61GF Score
Watanabe Sato Co Ltd TSE:1807
Graham Number is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Watanabeto Co Graham Number Calculation

Graham Number is a concept based on Ben Graham's conservative valuation of companies.

Watanabeto Co's Graham Number for the fiscal year that ended in Mar. 2026 is calculated as

Graham Number
=sqrt of (22.5* Tangible Book per Share *EPS without NRI)
=sqrt of (22.5*3624.25*142.873)
=3,413.31

Watanabeto Co's Graham Number for the quarter that ended in Mar. 2026 is calculated as

Graham Number
=sqrt of (22.5*Tangible Book per Share*EPS without NRI (TTM))
=sqrt of (22.5*3624.25*142.785)
=3,412.26

* 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.

Frequently Asked Questions Learn more about Graham Number →
What does a Graham Number of 円3,412.26 mean?
Watanabeto Co (TSE:1807) has a Graham Number of 円3,412.26 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Watanabeto Co and its competitors. This is 947750% above median its historical median of 0.36. Over the past decade, Watanabeto Co's Graham Number has ranged from 0.24 to 0.80. According to the industry distribution chart, Watanabeto Co ranks #253 out of 1210 companies in the Construction industry, placing it in the top 20.9%.
Is Watanabeto Co's Graham Number too high?
Watanabeto Co's current Graham Number of 円3,412.26 is 947750% above median its 10-year median of 0.36. Over the past 10 years, this metric has ranged from a low of 0.24 to a high of 0.80. Based on the distribution chart, Watanabeto Co ranks #253 out of 1210 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, Watanabeto Co has a GF Score™ of 61/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Watanabeto Co's Graham Number compare to PWR and FIX?
According to the Construction industry distribution chart, Watanabeto Co ranks #253 out of 1210 companies for Graham Number. This places Watanabeto Co in the top 21% of its industry — outperforming the majority of peers. The industry median Graham Number is 0.99. Historically, Watanabeto Co's own Graham Number has ranged from 0.24 to 0.80 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 Graham Number for a Construction company?
The median Graham Number among Construction companies is 0.99, based on 1,210 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 Watanabeto Co and its competitors. For the Construction industry, the median Graham Number is 0.99 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Watanabeto Co's current Graham Number is 円3,412.26, which is 947750% above median its own 10-year median of 0.36. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Watanabeto Co stock overvalued right now?
Based on GuruFocus' analysis, Watanabeto Co (TSE:1807) is currently considered Significantly Overvalued. The stock's GF Value™ is 円1,435.48, compared to a current price of 円1,895.00 — trading 32% above its estimated fair value. The current Graham Number is 円3,412.26, which is 947750% above median its 10-year median of 0.36. Watanabeto Co's overall GF Score™ is 61/100 with 4 warning signs 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 Watanabeto Co (TSE:1807), the current Graham Number is 円3,412.26 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 Watanabeto Co (TSE:1807) Overvalued in 2026?

Based on GuruFocus' analysis, Watanabeto Co stock appears to be overvalued. The current stock price of 円1,895.00 is trading 32% above its estimated GF Value™ of 円1,435.48. GuruFocus considers Watanabeto Co to be Significantly Overvalued.

Key valuation signals for TSE:1807:

  • Graham Number: 円3,412.26 (947750% above median its 10-year median of 0.36)
  • GF Value™: 円1,435.48 vs. price of 円1,895.00 (32% above fair value)
  • GF Score™: 61/100 with 4 warning signs

No single metric tells the full story. See the TSE:1807 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Watanabeto Co Business Description

Address 1-18-14 Minami Azabu Minato - ku, Tokyo, JPN, 106-8567
Watanabe Sato Co Ltd manufactures and distributes construction materials. It is also engaged in the design, manufacturing, rental, and distribution of construction machines and tools and treatment of industrial wastes. It also designs, manufacture, rent and sale machinery and equipment for construction work.
61GF Score

Get the complete analysis for TSE:1807

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

円1,895.00
Price
円1,435.48
GF Value