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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 (2026-09-03), the stock price of Aqualine is 円13.00. Aqualine's graham number for the quarter that ended in Feb. 2026 was 円N/A. Therefore, Aqualine's Price to Graham Number ratio for today is N/A.
The historical rank and industry rank for Aqualine's Graham Number or its related term are showing as below:
During the past 12 years, the highest Price to Graham Number ratio of Aqualine was 2.46. The lowest was 1.11. And the median was 1.96.
TSE:6173's Price-to-Graham-Number is not ranked *
in the Business Services industry.
Industry Median: 1.16 * Ranked among companies with meaningful Price-to-Graham-Number only.
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
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.
Aqualine's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Feb. 2026 )
=
13.00
/
N/A
=
N/A
* 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.
Aqualine Graham Number Related Terms
Aqualine Graham Number Historical Data
* Premium members only.
The historical data trend for Aqualine'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:6173 vs CTAS, CPRT, GPN: Graham Number Comparison
For the Specialty Business Services subindustry, Aqualine'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.
Aqualine Price-to-Graham-Number vs Business Services Industry
For the Business Services industry and Industrials sector, Aqualine's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Aqualine'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.
Aqualine (TSE:6173) has a Graham Number of 円N/A as of Feb. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Aqualine and its competitors.
Is Aqualine's Graham Number too high?
Aqualine's current Graham Number is 円N/A. Overall, Aqualine has a GF Score™ of 22/100, reflecting its overall financial health beyond just this single metric.
How does Aqualine's Graham Number compare to CTAS and CPRT?
Aqualine's Graham Number of 円N/A can be compared against companies in the Business Services industry. The industry median Graham Number is 1.16. 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 Business Services company?
The median Graham Number among Business Services companies is 1.16, based on 699 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 Aqualine and its competitors. For the Business Services industry, the median Graham Number is 1.16 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aqualine's current Graham Number is 円N/A. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aqualine stock overvalued right now?
Aqualine (TSE:6173) has a current Graham Number of 円N/A. The stock's GF Value™ is 円43.95, compared to a current price of 円13.00 — trading 70.4% below its estimated fair value. The current Graham Number is 円N/A. Aqualine's overall GF Score™ is 22/100 with 10 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 Aqualine (TSE:6173), the current Graham Number is 円N/A as of Feb. 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 Aqualine (TSE:6173) Overvalued in 2026?
Based on GuruFocus' analysis, Aqualine stock appears to be undervalued.
The current stock price of 円13.00 is trading 70.4% below its estimated GF Value™ of 円43.95.
Key valuation signals for TSE:6173:
Graham Number: 円N/A
GF Value™: 円43.95 vs. price of 円13.00 (70.4% below fair value)
No single metric tells the full story. See the TSE:6173 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Aqualine Ltd is engaged in the repair of water supply products. The company operates in three reportable segments. The Water-related Service Support Business provides support to franchisees, including call center operations for emergency water-related trouble repairs and response, sales and installation of water-related products, and other repair work. The Advertising Media Business sells internet advertising in the field of emergency care. The Mineral Water Business involves the sale of mineral water and the handling of water dispensers. It generates the majority of its revenue from the Water-related Service Support Business segment.
22GF Score
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