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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.
IST:SISE'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.43 Med: 0.64 Max: 0.99
Current: 0.45
During the past 13 years, the highest Price to Graham Number ratio of Turkiye Sise ve Cam Fabrikalari AS was 0.99. The lowest was 0.43. And the median was 0.64.
IST:SISE's Price-to-Graham-Number is ranked better than 83.11% of 379
companies
in the Conglomerates industry
Industry Median: 0.94
vs IST:SISE: 0.45
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Turkiye Sise ve Cam Fabrikalari AS (IST:SISE) 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.
Turkiye Sise ve Cam Fabrikalari AS's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
43.14
/
96.92
=
0.45
* 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.
Turkiye Sise ve Cam Fabrikalari AS Graham Number Related Terms
Turkiye Sise ve Cam Fabrikalari AS Graham Number Historical Data
* 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.
Turkiye Sise ve Cam Fabrikalari AS Graham Number Chart
For the Conglomerates subindustry, Turkiye Sise ve Cam Fabrikalari AS'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.
Turkiye Sise ve Cam Fabrikalari AS Price-to-Graham-Number vs Conglomerates Industry
For the Conglomerates industry and Industrials sector, Turkiye Sise ve Cam Fabrikalari AS's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Turkiye Sise ve Cam Fabrikalari AS'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.
Turkiye Sise ve Cam Fabrikalari AS (IST:SISE) has a Graham Number of ₺96.92 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Turkiye Sise ve Cam Fabrikalari AS and its competitors. This is 15044% above median its historical median of 0.64. Over the past decade, Turkiye Sise ve Cam Fabrikalari AS's Graham Number has ranged from 0.43 to 0.99. According to the industry distribution chart, Turkiye Sise ve Cam Fabrikalari AS ranks #64 out of 379 companies in the Conglomerates industry, placing it in the top 16.9%.
Is Turkiye Sise ve Cam Fabrikalari AS's Graham Number too high?
Turkiye Sise ve Cam Fabrikalari AS's current Graham Number of ₺96.92 is 15044% above median its 10-year median of 0.64. Over the past 10 years, this metric has ranged from a low of 0.43 to a high of 0.99. Based on the distribution chart, Turkiye Sise ve Cam Fabrikalari AS ranks #64 out of 379 companies in the Conglomerates industry, which is in the top quartile — a strong position relative to peers. Overall, Turkiye Sise ve Cam Fabrikalari AS has a GF Score™ of 90/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Turkiye Sise ve Cam Fabrikalari AS's Graham Number compare to HON and MMM?
According to the Conglomerates industry distribution chart, Turkiye Sise ve Cam Fabrikalari AS ranks #64 out of 379 companies for Graham Number. This places Turkiye Sise ve Cam Fabrikalari AS in the top 17% of its industry — outperforming the majority of peers. The industry median Graham Number is 0.94. Historically, Turkiye Sise ve Cam Fabrikalari AS's own Graham Number has ranged from 0.43 to 0.99 over the past decade. 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 Conglomerates company?
The median Graham Number among Conglomerates companies is 0.94, based on 379 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 Turkiye Sise ve Cam Fabrikalari AS and its competitors. For the Conglomerates industry, the median Graham Number is 0.94 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Turkiye Sise ve Cam Fabrikalari AS's current Graham Number is ₺96.92, which is 15044% above median its own 10-year median of 0.64. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Turkiye Sise ve Cam Fabrikalari AS stock overvalued right now?
Based on GuruFocus' analysis, Turkiye Sise ve Cam Fabrikalari AS (IST:SISE) is currently considered Modestly Undervalued. The stock's GF Value™ is ₺60.27, compared to a current price of ₺43.14 — trading 28.4% below its estimated fair value. The current Graham Number is ₺96.92, which is 15044% above median its 10-year median of 0.64. Turkiye Sise ve Cam Fabrikalari AS's overall GF Score™ is 90/100 with 8 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 Turkiye Sise ve Cam Fabrikalari AS (IST:SISE), the current Graham Number is ₺96.92 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 Turkiye Sise ve Cam Fabrikalari AS (IST:SISE) Overvalued in 2026?
Based on GuruFocus' analysis, Turkiye Sise ve Cam Fabrikalari AS stock appears to be undervalued.
The current stock price of ₺43.14 is trading 28.4% below its estimated GF Value™ of ₺60.27.
GuruFocus considers Turkiye Sise ve Cam Fabrikalari AS to be Modestly Undervalued.
Key valuation signals for IST:SISE:
Graham Number: ₺96.92 (15044% above median its 10-year median of 0.64)
GF Value™: ₺60.27 vs. price of ₺43.14 (28.4% below fair value)
No single metric tells the full story. See the IST:SISE stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Turkiye Sise ve Cam Fabrikalari AS Business Description
Turkiye Sise ve Cam Fabrikalari AS is a holding company that, through its subsidiaries, manufactures and sells glass products, chemicals, and glass packaging. The firm's five segments are based on product type. The flat glass segment, which generates more revenue than any other segment, sells glass panes used in windows and automobile windshields. The glassware segment sells glass beverage bottles and crystal products. The other three segments are glass packaging, chemicals, and other, which consists primarily of services including insurance and the export and import of goods. The majority of revenue comes from Turkey.
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