MBUMF (Mabuchi Motor Co) Graham Number: $11.37 (As of Dec. 2025) — 1163% Above Median

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Director of Data and Quant Analytics at GuruFocus
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MBUMF Mabuchi Motor Co Ltd MBUMF
73 GF Score
Price $9.45
GF Value $7.54
Valuation Modestly Overvalued
! 2 Warning Signs
View Full Analysis

What is Mabuchi Motor Co Graham Number?

Mabuchi Motor Co MBUMF 73 Graham Number is $11.37 as of Dec. 2025, which is 1163% above its 10-year median of 0.90. GuruFocus rates MBUMF with a GF Score™ of 73/100 and a GF Value™ of $7.54 (Modestly Overvalued). The stock has 2 warning signs investors should review. Among 986 Vehicles & Parts companies, Mabuchi Motor Co ranks better than 61.56% 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 (2026-08-03), the stock price of Mabuchi Motor Co is $9.45. Mabuchi Motor Co's graham number for the quarter that ended in Dec. 2025 was $11.37. Therefore, Mabuchi Motor Co's Price to Graham Number ratio for today is 0.80.

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

MBUMF' s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.72   Med: 0.9   Max: 1.48
Current: 0.88

During the past 13 years, the highest Price to Graham Number ratio of Mabuchi Motor Co was 1.48. The lowest was 0.72. And the median was 0.90.

MBUMF's Price-to-Graham-Number is ranked better than
61.56% of 986 companies
in the Vehicles & Parts industry
Industry Median: 1.17 vs MBUMF: 0.88

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


Mabuchi Motor Co  (OTCPK:MBUMF) 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.

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

Price to Graham number=Share Price (Today)/Graham number (Q: Dec. 2025 )
=9.45/11.83
=0.80

* 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.


Mabuchi Motor Co Graham Number Related Terms


Mabuchi Motor Co Graham Number Historical Data

* Premium members only.

The historical data trend for Mabuchi Motor 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.

Mabuchi Motor Co Graham Number Chart

Mabuchi Motor Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Graham Number
Get a 7-Day Free Trial Premium Member Only Premium Member Only 9.04 8.25 9.36 9.15 11.14

Mabuchi Motor Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 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 8.18 8.35 11.22 11.37 11.78

MBUMF vs ORLY, AZO: Graham Number Comparison

For the Auto Parts subindustry, Mabuchi Motor 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.


Mabuchi Motor Co Price-to-Graham-Number vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Mabuchi Motor Co's Price-to-Graham-Number distribution charts can be found below:

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


MBUMF
73GF Score
Mabuchi Motor Co Ltd MBUMF
Graham Number is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Mabuchi Motor Co Graham Number Calculation

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

Mabuchi Motor Co's Graham Number for the fiscal year that ended in Dec. 2025 is calculated as

Graham Number
=sqrt of (22.5* Tangible Book per Share *EPS without NRI)
=sqrt of (22.5*8.549*0.645)
=11.14

Mabuchi Motor Co's Graham Number for the quarter that ended in Dec. 2025 is calculated as

Graham Number
=sqrt of (22.5*Tangible Book per Share*EPS without NRI (TTM))
=sqrt of (22.5*8.549*0.728)
=11.83

* 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 $11.37 mean?
Mabuchi Motor Co (MBUMF) has a Graham Number of $11.37 as of Dec. 2025. The Graham Number values a company based on its per-share earnings and book value. View historical data on Mabuchi Motor Co and its competitors. This is 1163% above median its historical median of 0.90. Over the past decade, Mabuchi Motor Co's Graham Number has ranged from 0.72 to 1.48. According to the industry distribution chart, Mabuchi Motor Co ranks #379 out of 986 companies in the Vehicles & Parts industry, placing it in the top 38.4%.
Is Mabuchi Motor Co's Graham Number too high?
Mabuchi Motor Co's current Graham Number of $11.37 is 1163% above median its 10-year median of 0.90. Over the past 10 years, this metric has ranged from a low of 0.72 to a high of 1.48. The Vehicles & Parts industry median Graham Number is 1.17. Mabuchi Motor Co's value of $11.37 is 871.8% above this industry median. Based on the distribution chart, Mabuchi Motor Co ranks #379 out of 986 companies in the Vehicles & Parts industry, which is above the industry midpoint. Overall, Mabuchi Motor 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 Mabuchi Motor Co's Graham Number compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Mabuchi Motor Co ranks #379 out of 986 companies for Graham Number. This puts Mabuchi Motor Co in the upper half of its industry. The industry median Graham Number is 1.17. Mabuchi Motor Co's value of $11.37 is 871.8% above this benchmark. Historically, Mabuchi Motor Co's own Graham Number has ranged from 0.72 to 1.48 over the past decade. While the company's 10-year median is 0.90 vs. the industry median of 1.17, Mabuchi Motor Co has consistently been above 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 Graham Number for a Vehicles & Parts company?
The median Graham Number among Vehicles & Parts companies is 1.17, based on 986 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. Mabuchi Motor Co's current Graham Number of $11.37 is 871.8% above 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 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 Mabuchi Motor Co and its competitors. For the Vehicles & Parts industry, the median Graham Number is 1.17 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Mabuchi Motor Co's current Graham Number is $11.37, which is 1163% above median its own 10-year median of 0.90. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Mabuchi Motor Co stock overvalued right now?
Based on GuruFocus' analysis, Mabuchi Motor Co (MBUMF) is currently considered Modestly Overvalued. The stock's GF Value™ is $7.54, compared to a current price of $9.45 — trading 25.3% above its estimated fair value. The current Graham Number is $11.37, which is 1163% above median its 10-year median of 0.90 and 871.8% above the Vehicles & Parts industry median of 1.17. Mabuchi Motor Co's overall GF Score™ is 73/100 with 2 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 Mabuchi Motor Co (MBUMF), the current Graham Number is $11.37 as of Dec. 2025. 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 Mabuchi Motor Co (MBUMF) Overvalued in 2026?

Based on GuruFocus' analysis, Mabuchi Motor Co stock appears to be overvalued. The current stock price of $9.45 is trading 25.3% above its estimated GF Value™ of $7.54. GuruFocus considers Mabuchi Motor Co to be Modestly Overvalued.

Key valuation signals for MBUMF:

  • Graham Number: $11.37 (1163% above median its 10-year median of 0.90)
  • GF Value™: $7.54 vs. price of $9.45 (25.3% above fair value)
  • GF Score™: 73/100 with 2 warning signs
  • Industry Position: 871.8% above the Vehicles & Parts median (#379 of 986)

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


Mabuchi Motor Co Business Description

Other Exchanges 6592:JapanV94:Germany
Address 430 Matsuhidai, Chiba Prefecture, Matsudo, JPN, 270-2280
Mabuchi Motor Co Ltd is a Japan-based company engaged in the manufacture and sale of small motors. The company operates under a single business model, with four reportable segments: Japan, Asia, America, and Europe, which are based on regional production and sales systems.
73GF Score

Get the complete analysis for MBUMF

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

$9.45
Price
$7.54
GF Value