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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 (2026-09-05), the stock price of Ishizuka Glass Co is 円3055.00. Ishizuka Glass Co's graham number for the quarter that ended in Mar. 2026 was 円11,390.06. Therefore, Ishizuka Glass Co's Price to Graham Number ratio for today is 0.27.
The historical rank and industry rank for Ishizuka Glass Co's Graham Number or its related term are showing as below:
TSE:5204'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.2 Med: 0.26 Max: 0.31
Current: 0.27
During the past 13 years, the highest Price to Graham Number ratio of Ishizuka Glass Co was 0.31. The lowest was 0.20. And the median was 0.26.
TSE:5204's Price-to-Graham-Number is ranked better than 96.76% of 309
companies
in the Packaging & Containers industry
Industry Median: 1.05
vs TSE:5204: 0.27
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Ishizuka Glass Co (TSE:5204) 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.
Ishizuka Glass Co's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
3055.00
/
11,359.24
=
0.27
* 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.
Ishizuka Glass Co Graham Number Related Terms
Ishizuka Glass Co Graham Number Historical Data
* Premium members only.
The historical data trend for Ishizuka Glass 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:5204 vs SW, AMCR, PKG: Graham Number Comparison
For the Packaging & Containers subindustry, Ishizuka Glass 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.
Ishizuka Glass Co Price-to-Graham-Number vs Packaging & Containers Industry
For the Packaging & Containers industry and Consumer Cyclical sector, Ishizuka Glass Co's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Ishizuka Glass 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.
Ishizuka Glass Co (TSE:5204) has a Graham Number of 円11,390.06 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Ishizuka Glass Co and its competitors. According to the industry distribution chart, Ishizuka Glass Co ranks #10 out of 309 companies in the Packaging & Containers industry, placing it in the top 3.2%.
Is Ishizuka Glass Co's Graham Number too high?
Ishizuka Glass Co's current Graham Number is 円11,390.06. Based on the distribution chart, Ishizuka Glass Co ranks #10 out of 309 companies in the Packaging & Containers industry, which is in the top quartile — a strong position relative to peers. Overall, Ishizuka Glass Co has a GF Score™ of 60/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Ishizuka Glass Co's Graham Number compare to SW and AMCR?
According to the Packaging & Containers industry distribution chart, Ishizuka Glass Co ranks #10 out of 309 companies for Graham Number. This places Ishizuka Glass Co in the top 3% of its industry — outperforming the majority of peers. The industry median Graham Number is 1.05. 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 Packaging & Containers company?
The median Graham Number among Packaging & Containers companies is 1.05, based on 309 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 Ishizuka Glass Co and its competitors. For the Packaging & Containers industry, the median Graham Number is 1.05 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ishizuka Glass Co's current Graham Number is 円11,390.06. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ishizuka Glass Co stock overvalued right now?
Based on GuruFocus' analysis, Ishizuka Glass Co (TSE:5204) is currently considered Fairly Valued. The stock's GF Value™ is 円2,867.03, compared to a current price of 円3,055.00 — trading 6.6% above its estimated fair value. The current Graham Number is 円11,390.06. Ishizuka Glass Co's overall GF Score™ is 60/100 with 3 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 Ishizuka Glass Co (TSE:5204), the current Graham Number is 円11,390.06 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 Ishizuka Glass Co (TSE:5204) Overvalued in 2026?
Based on GuruFocus' analysis, Ishizuka Glass Co stock appears to be overvalued.
The current stock price of 円3,055.00 is trading 6.6% above its estimated GF Value™ of 円2,867.03.
GuruFocus considers Ishizuka Glass Co to be Fairly Valued.
Key valuation signals for TSE:5204:
Graham Number: 円11,390.06
GF Value™: 円2,867.03 vs. price of 円3,055.00 (6.6% above fair value)
No single metric tells the full story. See the TSE:5204 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ishizuka Glass Co Ltd is engaged in the production and distribution of glass bottles, glass tableware, paper package products, plastic containers, ceramic products in Japan. It offers preforms for PET bottles; mechanical recycled resins for PET bottles; chinaware and other ceramic products; metal caps; and paper packaging products for beverages.
60GF Score
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