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.
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.
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 (2026-08-28), the stock price of Osaki Electric Co is 円1554.00. Osaki Electric Co's graham number for the quarter that ended in Mar. 2026 was 円1,411.32. Therefore, Osaki Electric Co's Price to Graham Number ratio for today is 1.00.
The historical rank and industry rank for Osaki Electric Co's Graham Number or its related term are showing as below:
TSE:6644'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.59 Med: 0.76 Max: 1.69
Current: 0.99
During the past 13 years, the highest Price to Graham Number ratio of Osaki Electric Co was 1.69. The lowest was 0.59. And the median was 0.76.
TSE:6644's Price-to-Graham-Number is ranked better than 73.48% of 1648
companies
in the Hardware industry
Industry Median: 1.785
vs TSE:6644: 0.99
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Osaki Electric Co (TSE:6644) 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.
Osaki Electric Co's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
1554.00
/
1,555.45
=
1.00
* 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.
Osaki Electric Co Graham Number Related Terms
Osaki Electric Co Graham Number Historical Data
* Premium members only.
The historical data trend for Osaki Electric 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:6644 vs COHR, KEYS, GRMN: Graham Number Comparison
For the Scientific & Technical Instruments subindustry, Osaki Electric 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.
Osaki Electric Co Price-to-Graham-Number vs Hardware Industry
For the Hardware industry and Technology sector, Osaki Electric Co's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Osaki Electric 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.
Osaki Electric Co (TSE:6644) has a Graham Number of 円1,411.32 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Osaki Electric Co and its competitors. According to the industry distribution chart, Osaki Electric Co ranks #437 out of 1648 companies in the Hardware industry, placing it in the top 26.5%.
Is Osaki Electric Co's Graham Number too high?
Osaki Electric Co's current Graham Number is 円1,411.32. Based on the distribution chart, Osaki Electric Co ranks #437 out of 1648 companies in the Hardware industry, which is above the industry midpoint. Overall, Osaki Electric Co has a GF Score™ of 72/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Osaki Electric Co's Graham Number compare to COHR and KEYS?
According to the Hardware industry distribution chart, Osaki Electric Co ranks #437 out of 1648 companies for Graham Number. This puts Osaki Electric Co in the upper half of its industry. The industry median Graham Number is 1.79. 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 Hardware company?
The median Graham Number among Hardware companies is 1.79, based on 1,648 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 Osaki Electric Co and its competitors. For the Hardware industry, the median Graham Number is 1.79 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Osaki Electric Co's current Graham Number is 円1,411.32. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Osaki Electric Co stock overvalued right now?
Based on GuruFocus' analysis, Osaki Electric Co (TSE:6644) is currently considered Significantly Overvalued. The stock's GF Value™ is 円840.63, compared to a current price of 円1,554.00 — trading 84.9% above its estimated fair value. The current Graham Number is 円1,411.32. Osaki Electric Co's overall GF Score™ is 72/100. 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 Osaki Electric Co (TSE:6644), the current Graham Number is 円1,411.32 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 Osaki Electric Co (TSE:6644) Overvalued in 2026?
Based on GuruFocus' analysis, Osaki Electric Co stock appears to be overvalued.
The current stock price of 円1,554.00 is trading 84.9% above its estimated GF Value™ of 円840.63.
GuruFocus considers Osaki Electric Co to be Significantly Overvalued.
Key valuation signals for TSE:6644:
Graham Number: 円1,411.32
GF Value™: 円840.63 vs. price of 円1,554.00 (84.9% above fair value)
No single metric tells the full story. See the TSE:6644 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Osaki Electric Co Ltd is a Japan based company engaged in manufacturing measurement and control equipment. Its product offering includes electricity meter, meter transformer, power distribution automation equipment, time switch, demand control equipment, energy management system, automatic meter reading system, smart home-related equipment, optical communications equipment, distribution board, other manufacturing and sales of electrical machinery and equipment.
72GF Score
Get the complete analysis for TSE:6644
Graham Number is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TSE:6644 has been successfully added to your 
