MBUMY (Mabuchi Motor Co) Cyclically Adjusted PB Ratio: 1.55 (As of Jul. 26, 2026) — 29% Above 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.

MBUMY Mabuchi Motor Co Ltd MBUMY
73 GF Score
Price $10.05
GF Value $7.67
Valuation Significantly Overvalued
! 2 Warning Signs
View Full Analysis

What is Mabuchi Motor Co Cyclically Adjusted PB Ratio?

Mabuchi Motor Co MBUMY +6.78% 73 Cyclically Adjusted PB Ratio is 1.55 as of Jul. 26, 2026, which is 29% above its 10-year median of 1.20. GuruFocus rates MBUMY with a GF Score™ of 73/100 and a GF Value™ of $7.67 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 1,027 Vehicles & Parts companies, Mabuchi Motor Co ranks worse than 54.33% on this metric.

As of today (2026-07-26), Mabuchi Motor Co's current share price is $10.0482. Mabuchi Motor Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was $6.47. Mabuchi Motor Co's Cyclically Adjusted PB Ratio for today is 1.55.

The historical rank and industry rank for Mabuchi Motor Co's Cyclically Adjusted PB Ratio or its related term are showing as below:

MBUMY' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.88   Med: 1.2   Max: 2.2
Current: 1.46

During the past years, Mabuchi Motor Co's highest Cyclically Adjusted PB Ratio was 2.20. The lowest was 0.88. And the median was 1.20.

MBUMY's Cyclically Adjusted PB Ratio is ranked worse than
54.33% of 1027 companies
in the Vehicles & Parts industry
Industry Median: 1.26 vs MBUMY: 1.46

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Mabuchi Motor Co's adjusted book value per share data for the three months ended in Dec. 2025 was $8.727. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $6.47 for the trailing ten years ended in Dec. 2025.

Shiller PE for Stocks: The True Measure of Stock Valuation


Mabuchi Motor Co  (OTCPK:MBUMY) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


Mabuchi Motor Co Cyclically Adjusted PB Ratio Related Terms


Mabuchi Motor Co Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Mabuchi Motor Co's Cyclically Adjusted PB Ratio 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 Cyclically Adjusted PB Ratio Chart

Mabuchi Motor Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.12 1.01 1.19 1.06 1.30

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
Cyclically Adjusted PB Ratio 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 1.07 0.99 1.19 1.30 0.00

MBUMY vs ORLY, AZO: Cyclically Adjusted PB Ratio Comparison

For the Auto Parts subindustry, Mabuchi Motor Co's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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 Cyclically Adjusted PB Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Mabuchi Motor Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Mabuchi Motor Co's Cyclically Adjusted PB Ratio falls into.


MBUMY
73GF Score
Mabuchi Motor Co Ltd MBUMY
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Mabuchi Motor Co Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

Mabuchi Motor Co's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=10.0482/6.47
=1.55

* 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's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 is calculated as:

For example, Mabuchi Motor Co's adjusted Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book=Book Value per Share/CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=8.727/113.0000*113.0000
=8.727

Current CPI (Dec. 2025) = 113.0000.

Mabuchi Motor Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 7.017 97.900 8.099
201606 7.292 98.100 8.400
201609 7.592 98.000 8.754
201612 7.342 98.400 8.431
201703 7.305 98.100 8.415
201706 7.713 98.500 8.848
201709 7.880 98.800 9.013
201712 7.929 99.400 9.014
201803 8.186 99.200 9.325
201806 8.108 99.200 9.236
201809 8.270 99.900 9.354
201812 8.115 99.700 9.198
201903 8.178 99.700 9.269
201906 8.324 99.800 9.425
201909 8.255 100.100 9.319
201912 8.462 100.500 9.514
202003 8.168 100.300 9.202
202006 8.188 99.900 9.262
202009 8.318 99.900 9.409
202012 8.731 99.300 9.936
202103 8.680 99.900 9.818
202106 8.737 99.500 9.922
202109 8.726 100.100 9.851
202112 8.734 100.100 9.860
202203 8.724 101.100 9.751
202206 8.343 101.800 9.261
202209 7.944 103.100 8.707
202212 8.032 104.100 8.719
202303 8.207 104.400 8.883
202306 8.350 105.200 8.969
202309 8.052 106.200 8.568
202312 8.270 106.800 8.750
202403 8.345 107.200 8.797
202406 8.326 108.200 8.695
202409 8.384 108.900 8.700
202412 8.260 110.700 8.432
202503 8.149 111.100 8.288
202506 8.496 111.700 8.595
202509 8.622 112.000 8.699
202512 8.727 113.000 8.727

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

What does a Cyclically Adjusted PB Ratio of 1.55 mean?
Mabuchi Motor Co (MBUMY) has a Cyclically Adjusted PB Ratio of 1.55 as of Jul. 26, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Mabuchi Motor Co and its competitors. This is 29% above median its historical median of 1.20. Over the past decade, Mabuchi Motor Co's Cyclically Adjusted PB Ratio has ranged from 0.88 to 2.20. According to the industry distribution chart, Mabuchi Motor Co ranks #558 out of 1027 companies in the Vehicles & Parts industry, placing it in the top 54.3%.
Is Mabuchi Motor Co's Cyclically Adjusted PB Ratio too high?
Mabuchi Motor Co's current Cyclically Adjusted PB Ratio of 1.55 is 29% above median its 10-year median of 1.20. Over the past 10 years, this metric has ranged from a low of 0.88 to a high of 2.20. The Vehicles & Parts industry median Cyclically Adjusted PB Ratio is 1.26. Mabuchi Motor Co's value of 1.55 is 23% above this industry median. Based on the distribution chart, Mabuchi Motor Co ranks #558 out of 1027 companies in the Vehicles & Parts industry, which is below the industry midpoint. Overall, Mabuchi Motor Co has a GF Score™ of 73/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Mabuchi Motor Co's Cyclically Adjusted PB Ratio compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Mabuchi Motor Co ranks #558 out of 1027 companies for Cyclically Adjusted PB Ratio. This places Mabuchi Motor Co in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.26. Mabuchi Motor Co's value of 1.55 is 23% above this benchmark. Historically, Mabuchi Motor Co's own Cyclically Adjusted PB Ratio has ranged from 0.88 to 2.20 over the past decade. While the company's 10-year median is 1.20 vs. the industry median of 1.26, 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 Cyclically Adjusted PB Ratio for a Vehicles & Parts company?
The median Cyclically Adjusted PB Ratio among Vehicles & Parts companies is 1.26, based on 1,027 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Mabuchi Motor Co's current Cyclically Adjusted PB Ratio of 1.55 is 23% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Mabuchi Motor Co and its competitors. For the Vehicles & Parts industry, the median Cyclically Adjusted PB Ratio is 1.26 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Mabuchi Motor Co's current Cyclically Adjusted PB Ratio is 1.55, which is 29% above median its own 10-year median of 1.20. 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 (MBUMY) is currently considered Significantly Overvalued. The stock's GF Value™ is $7.67, compared to a current price of $10.05 — trading 31% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 1.55, which is 29% above median its 10-year median of 1.20 and 23% above the Vehicles & Parts industry median of 1.26. 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 Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Mabuchi Motor Co (MBUMY), the current Cyclically Adjusted PB Ratio is 1.55 as of Jul. 26, 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 Mabuchi Motor Co (MBUMY) Overvalued in 2026?

Based on GuruFocus' analysis, Mabuchi Motor Co stock appears to be overvalued. The current stock price of $10.05 is trading 31% above its estimated GF Value™ of $7.67. GuruFocus considers Mabuchi Motor Co to be Significantly Overvalued.

Key valuation signals for MBUMY:

  • Cyclically Adjusted PB Ratio: 1.55 (29% above median its 10-year median of 1.20)
  • GF Value™: $7.67 vs. price of $10.05 (31% above fair value)
  • GF Score™: 73/100 with 2 warning signs
  • Industry Position: 23% above the Vehicles & Parts median (#558 of 1027)

No single metric tells the full story. See the MBUMY 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 MBUMY

Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$10.05
Price
$7.67
GF Value