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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.
Taiwan Glass IndTPE:1802 +1.30%44 Graham Number is NT$7.15 as of Mar. 2026, which is 100% below its 10-year median of 1.11. GuruFocus rates TPE:1802 with a GF Score™ of 44/100 and a GF Value™ of NT$18.93 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 286 Building Materials companies, Taiwan Glass Ind ranks worse than 97.9% 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 (2026-08-07), the stock price of Taiwan Glass Ind is NT$54.60. Taiwan Glass Ind's graham number for the quarter that ended in Mar. 2026 was NT$7.15. Therefore, Taiwan Glass Ind's Price to Graham Number ratio for today is 7.64.
The historical rank and industry rank for Taiwan Glass Ind's Graham Number or its related term are showing as below:
TPE:1802'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.53 Med: 1.11 Max: 16.57
Current: 7.64
During the past 13 years, the highest Price to Graham Number ratio of Taiwan Glass Ind was 16.57. The lowest was 0.53. And the median was 1.11.
TPE:1802's Price-to-Graham-Number is ranked worse than 97.9% of 286
companies
in the Building Materials industry
Industry Median: 1
vs TPE:1802: 7.64
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Taiwan Glass Ind (TPE:1802) 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.
Taiwan Glass Ind's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
54.60
/
7.15
=
7.64
* 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.
Taiwan Glass Ind Graham Number Related Terms
Taiwan Glass Ind Graham Number Historical Data
* Premium members only.
The historical data trend for Taiwan Glass Ind'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.
TPE:1802 vs CRH, VMC, MLM: Graham Number Comparison
For the Building Materials subindustry, Taiwan Glass Ind'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.
Taiwan Glass Ind Price-to-Graham-Number vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, Taiwan Glass Ind's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Taiwan Glass Ind'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.
Taiwan Glass Ind (TPE:1802) has a Graham Number of NT$7.15 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Taiwan Glass Ind and its competitors. This is 544% above median its historical median of 1.11. Over the past decade, Taiwan Glass Ind's Graham Number has ranged from 0.53 to 16.57. According to the industry distribution chart, Taiwan Glass Ind ranks #280 out of 286 companies in the Building Materials industry, placing it in the top 97.9%.
Is Taiwan Glass Ind's Graham Number too high?
Taiwan Glass Ind's current Graham Number of NT$7.15 is 544% above median its 10-year median of 1.11. Over the past 10 years, this metric has ranged from a low of 0.53 to a high of 16.57. Based on the distribution chart, Taiwan Glass Ind ranks #280 out of 286 companies in the Building Materials industry, which is in the bottom quartile relative to peers. Overall, Taiwan Glass Ind has a GF Score™ of 44/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Glass Ind's Graham Number compare to CRH and VMC?
According to the Building Materials industry distribution chart, Taiwan Glass Ind ranks #280 out of 286 companies for Graham Number. This places Taiwan Glass Ind in the lower half of its industry. The industry median Graham Number is 1.00. Historically, Taiwan Glass Ind's own Graham Number has ranged from 0.53 to 16.57 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 Building Materials company?
The median Graham Number among Building Materials companies is 1.00, based on 286 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 Taiwan Glass Ind and its competitors. For the Building Materials industry, the median Graham Number is 1.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Taiwan Glass Ind's current Graham Number is NT$7.15, which is 544% above median its own 10-year median of 1.11. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiwan Glass Ind stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Glass Ind (TPE:1802) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$18.93, compared to a current price of NT$54.60 — trading 188.4% above its estimated fair value. The current Graham Number is NT$7.15, which is 544% above median its 10-year median of 1.11. Taiwan Glass Ind's overall GF Score™ is 44/100 with 5 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 Taiwan Glass Ind (TPE:1802), the current Graham Number is NT$7.15 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 Taiwan Glass Ind (TPE:1802) Overvalued in 2026?
Based on GuruFocus' analysis, Taiwan Glass Ind stock appears to be overvalued.
The current stock price of NT$54.60 is trading 188.4% above its estimated GF Value™ of NT$18.93.
GuruFocus considers Taiwan Glass Ind to be Significantly Overvalued.
Key valuation signals for TPE:1802:
Graham Number: NT$7.15 (544% above median its 10-year median of 1.11)
GF Value™: NT$18.93 vs. price of NT$54.60 (188.4% above fair value)
No single metric tells the full story. See the TPE:1802 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Taiwan Glass Ind Corp is engaged in the manufacturing, processing, and selling of various glass products. Its products include flat glass, auto glass, ultra-thin glass, photoelectric glass, fiber glass, and containers, tableware & kitchenware. The company's segments include Flat Glass Segment, engaged in the manufacturing and selling of flat glass; Glass Container Segment, engaged in the manufacturing and selling of glass containers; and Glass Fiber Segment, engaged in the manufacturing and selling of glass fibers. It derives the majority of its revenue from the Flat Glass segment. Geographically, its operations are spread across Taiwan, China, and Other countries.
44GF Score
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