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Taiwan Glass IndTPE:1802 -6.08%45 ROC (Joel Greenblatt) % is 6.13% as of Mar. 2026, which is 191% above its 10-year median of 2.11. GuruFocus rates TPE:1802 with a GF Score™ of 45/100 and a GF Value™ of NT$18.84 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 407 Building Materials companies, Taiwan Glass Ind ranks worse than 73.71% on this metric.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Taiwan Glass Ind's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 6.13%.
The historical rank and industry rank for Taiwan Glass Ind's ROC (Joel Greenblatt) % or its related term are showing as below:
TPE:1802'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -1.4 Med: 2.11 Max: 28.21
Current: 2.01
During the past 13 years, Taiwan Glass Ind's highest ROC (Joel Greenblatt) % was 28.21%. The lowest was -1.40%. And the median was 2.11%.
TPE:1802's ROC (Joel Greenblatt) % is ranked worse than 73.71% of 407
companies
in the Building Materials industry
Industry Median: 8.57
vs TPE:1802: 2.01
Taiwan Glass Ind's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.
Taiwan Glass Ind (TPE:1802) ROC (Joel Greenblatt) % Explanation
The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.
Taiwan Glass Ind ROC (Joel Greenblatt) % Related Terms
Taiwan Glass Ind ROC (Joel Greenblatt) % Historical Data
* Premium members only.
The historical data trend for Taiwan Glass Ind's ROC (Joel Greenblatt) % 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: ROC (Joel Greenblatt) % Comparison
For the Building Materials subindustry, Taiwan Glass Ind's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (Joel Greenblatt) % 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 ROC (Joel Greenblatt) % vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, Taiwan Glass Ind's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Taiwan Glass Ind's ROC (Joel Greenblatt) % falls into.
Taiwan Glass Ind ROC (Joel Greenblatt) % Calculation
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:
EBIT stands for Earnings Before Interest and Taxes.
Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.
GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.
Note:
The EBIT data used here is four times the quarterly (Mar. 2026) EBIT 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.
What does a ROC (Joel Greenblatt) % of 6.13% mean?
Taiwan Glass Ind (TPE:1802) has a ROC (Joel Greenblatt) % of 6.13% as of Mar. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Taiwan Glass Ind and its competitors. This is 191% above median its historical median of 2.11. According to the industry distribution chart, Taiwan Glass Ind ranks #300 out of 407 companies in the Building Materials industry, placing it in the top 73.7%.
Is Taiwan Glass Ind's ROC (Joel Greenblatt) % too high?
Taiwan Glass Ind's current ROC (Joel Greenblatt) % of 6.13% is 191% above median its 10-year median of 2.11. The Building Materials industry median ROC (Joel Greenblatt) % is 8.57. Taiwan Glass Ind's value of 6.13% is 28.5% below this industry median. Based on the distribution chart, Taiwan Glass Ind ranks #300 out of 407 companies in the Building Materials industry, which is below the industry midpoint. Overall, Taiwan Glass Ind has a GF Score™ of 45/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Glass Ind's ROC (Joel Greenblatt) % compare to CRH and VMC?
According to the Building Materials industry distribution chart, Taiwan Glass Ind ranks #300 out of 407 companies for ROC (Joel Greenblatt) %. This places Taiwan Glass Ind in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 8.57. Taiwan Glass Ind's value of 6.13% is 28.5% below this benchmark. While the company's 10-year median is 2.11 vs. the industry median of 8.57, Taiwan Glass Ind has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC (Joel Greenblatt) % for a Building Materials company?
The median ROC (Joel Greenblatt) % among Building Materials companies is 8.57, based on 407 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Taiwan Glass Ind's current ROC (Joel Greenblatt) % of 6.13% is 28.5% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high ROC (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Taiwan Glass Ind and its competitors. For the Building Materials industry, the median ROC (Joel Greenblatt) % is 8.57 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Taiwan Glass Ind's current ROC (Joel Greenblatt) % is 6.13%, which is 191% above median its own 10-year median of 2.11. 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$18.84, compared to a current price of NT$51.00 — trading 170.7% above its estimated fair value. The current ROC (Joel Greenblatt) % is 6.13%, which is 191% above median its 10-year median of 2.11 and 28.5% below the Building Materials industry median of 8.57. Taiwan Glass Ind's overall GF Score™ is 45/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Taiwan Glass Ind (TPE:1802), the current ROC (Joel Greenblatt) % is 6.13% 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$51.00 is trading 170.7% above its estimated GF Value™ of NT$18.84.
GuruFocus considers Taiwan Glass Ind to be Significantly Overvalued.
Key valuation signals for TPE:1802:
ROC (Joel Greenblatt) %: 6.13% (191% above median its 10-year median of 2.11)
GF Value™: NT$18.84 vs. price of NT$51.00 (170.7% above fair value)
Industry Position: 28.5% below the Building Materials median (#300 of 407)
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.
45GF Score
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