BML (BMLKF) Graham Number: $23.98 (As of Mar. 2026) — 2228% 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.

BMLKF BML Inc BMLKF
73 GF Score
Price $25.21
GF Value $26.37
! 2 Warning Signs
View Full Analysis

What is BML Graham Number?

BML BMLKF 73 Graham Number is $23.98 as of Mar. 2026, which is 2228% above its 10-year median of 1.03. GuruFocus rates BMLKF with a GF Score™ of 73/100 and a GF Value™ of $26.37. The stock has 2 warning signs investors should review. Among 71 Medical Diagnostics & Research companies, BML ranks better than 84.51% 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 (2026-07-18), the stock price of BML is $25.207. BML's graham number for the quarter that ended in Mar. 2026 was $23.98. Therefore, BML's Price to Graham Number ratio for today is 1.05.

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

BMLKF' s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.42   Med: 1.03   Max: 1.31
Current: 0.99

During the past 13 years, the highest Price to Graham Number ratio of BML was 1.31. The lowest was 0.42. And the median was 1.03.

BMLKF's Price-to-Graham-Number is ranked better than
84.51% of 71 companies
in the Medical Diagnostics & Research industry
Industry Median: 2.63 vs BMLKF: 0.99

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


BML  (OTCPK:BMLKF) 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.

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

Price to Graham number=Share Price (Today)/Graham number (Q: Mar. 2026 )
=25.207/23.98
=1.05

* 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.


BML Graham Number Related Terms


BML Graham Number Historical Data

* Premium members only.

The historical data trend for BML'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.

BML Graham Number Chart

BML 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 61.66 38.81 22.05 23.13 23.37

BML 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 15.67 20.37 24.25 24.25 23.98

BMLKF vs TMO, DHR, IDXX: Graham Number Comparison

For the Diagnostics & Research subindustry, BML'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.


BML Price-to-Graham-Number vs Medical Diagnostics & Research Industry

For the Medical Diagnostics & Research industry and Healthcare sector, BML's Price-to-Graham-Number distribution charts can be found below:

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


BMLKF
73GF Score
BML Inc BMLKF
Graham Number is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

BML Graham Number Calculation

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

BML'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*20.674*1.174)
=23.37

BML'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*20.674*1.236)
=23.98

* 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 $23.98 mean?
BML (BMLKF) has a Graham Number of $23.98 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on BML and its competitors. This is 2228% above median its historical median of 1.03. Over the past decade, BML's Graham Number has ranged from 0.42 to 1.31. According to the industry distribution chart, BML ranks #11 out of 71 companies in the Medical Diagnostics & Research industry, placing it in the top 15.5%.
Is BML's Graham Number too high?
BML's current Graham Number of $23.98 is 2228% above median its 10-year median of 1.03. Over the past 10 years, this metric has ranged from a low of 0.42 to a high of 1.31. The Medical Diagnostics & Research industry median Graham Number is 2.63. BML's value of $23.98 is 811.8% above this industry median. Based on the distribution chart, BML ranks #11 out of 71 companies in the Medical Diagnostics & Research industry, which is in the top quartile — a strong position relative to peers. Overall, BML has a GF Score™ of 73/100, reflecting its overall financial health beyond just this single metric.
How does BML's Graham Number compare to TMO and DHR?
According to the Medical Diagnostics & Research industry distribution chart, BML ranks #11 out of 71 companies for Graham Number. This places BML in the top 16% of its industry — outperforming the majority of peers. The industry median Graham Number is 2.63. BML's value of $23.98 is 811.8% above this benchmark. Historically, BML's own Graham Number has ranged from 0.42 to 1.31 over the past decade. While the company's 10-year median is 1.03 vs. the industry median of 2.63, BML 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 Medical Diagnostics & Research company?
The median Graham Number among Medical Diagnostics & Research companies is 2.63, based on 71 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. BML's current Graham Number of $23.98 is 811.8% 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 BML and its competitors. For the Medical Diagnostics & Research industry, the median Graham Number is 2.63 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. BML's current Graham Number is $23.98, which is 2228% above median its own 10-year median of 1.03. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is BML stock overvalued right now?
BML (BMLKF) has a current Graham Number of $23.98. The stock's GF Value™ is $26.37, compared to a current price of $25.21 — trading 4.4% below its estimated fair value. The current Graham Number is $23.98, which is 2228% above median its 10-year median of 1.03 and 811.8% above the Medical Diagnostics & Research industry median of 2.63. BML'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 BML (BMLKF), the current Graham Number is $23.98 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 BML (BMLKF) Overvalued in 2026?

Based on GuruFocus' analysis, BML stock appears to be undervalued. The current stock price of $25.21 is trading 4.4% below its estimated GF Value™ of $26.37.

Key valuation signals for BMLKF:

  • Graham Number: $23.98 (2228% above median its 10-year median of 1.03)
  • GF Value™: $26.37 vs. price of $25.21 (4.4% below fair value)
  • GF Score™: 73/100 with 2 warning signs
  • Industry Position: 811.8% above the Medical Diagnostics & Research median (#11 of 71)

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


BML Business Description

Other Exchanges 4694:Japan
Address 5-21-3 Sendagaya, Shibuya-ku, Tokyo, JPN, 1510051
BML Inc provides laboratory testing services in Japan through a network of regional facilities. Its core clinical testing business provides a range of general and specialty laboratory tests, as well as microbiological tests that can be used for applications like food sanitation and environmental analysis. BML often uses automated systems to process and analyze these test samples. In addition to its clinical testing business, BML also has a medical information systems business and a genome-related business. The medical information systems business provides electronic medical charts and information systems that can be used in conjunction with its laboratory tests. The genome business provides gene analysis services.
73GF Score

Get the complete analysis for BMLKF

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

$25.21
Price
$26.37
GF Value