Lee Chang Yung Technology (TPE:4989) ROC (Joel Greenblatt) %: -1.76% (As of Dec. 2025)

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TPE:4989 Lee Chang Yung Technology Corp TPE:4989
51 GF Score
Price NT$72.50
GF Value NT$16.61
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Lee Chang Yung Technology ROC (Joel Greenblatt) %?

Lee Chang Yung Technology TPE:4989 +5.07% 51 ROC (Joel Greenblatt) % is -1.76% as of Dec. 2025. GuruFocus rates TPE:4989 with a GF Score™ of 51/100 and a GF Value™ of NT$16.61 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 2,500 Metals & Mining companies, Lee Chang Yung Technology ranks worse than 56.44% 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. Lee Chang Yung Technology's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was -1.76%.

The historical rank and industry rank for Lee Chang Yung Technology's ROC (Joel Greenblatt) % or its related term are showing as below:

TPE:4989' s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -32.7   Med: 10.34   Max: 94.2
Current: -32.7

During the past 13 years, Lee Chang Yung Technology's highest ROC (Joel Greenblatt) % was 94.20%. The lowest was -32.70%. And the median was 10.34%.

TPE:4989's ROC (Joel Greenblatt) % is ranked worse than
56.44% of 2500 companies
in the Metals & Mining industry
Industry Median: -22.14 vs TPE:4989: -32.70

Lee Chang Yung Technology's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.


Lee Chang Yung Technology  (TPE:4989) 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.

Joel Greenblatt uses his definition of Return on Capital and Earnings Yield (Joel Greenblatt) % to rank companies.


Lee Chang Yung Technology ROC (Joel Greenblatt) % Related Terms


Lee Chang Yung Technology ROC (Joel Greenblatt) % Historical Data

* Premium members only.

The historical data trend for Lee Chang Yung Technology'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.

Lee Chang Yung Technology ROC (Joel Greenblatt) % Chart

Lee Chang Yung Technology Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROC (Joel Greenblatt) %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 45.10 16.82 -10.49 -19.98 -31.48

Lee Chang Yung Technology Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
ROC (Joel Greenblatt) % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -28.23 -24.59 -75.94 -30.04 -1.76

TPE:4989 vs SCCO, FCX: ROC (Joel Greenblatt) % Comparison

For the Copper subindustry, Lee Chang Yung Technology'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.


Lee Chang Yung Technology ROC (Joel Greenblatt) % vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Lee Chang Yung Technology's ROC (Joel Greenblatt) % distribution charts can be found below:

* The bar in red indicates where Lee Chang Yung Technology's ROC (Joel Greenblatt) % falls into.


TPE:4989
51GF Score
Lee Chang Yung Technology Corp TPE:4989
ROC (Joel Greenblatt) % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Lee Chang Yung Technology 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:

ROC (Joel Greenblatt) %=EBIT/Average of (Net fixed Assets + Net Working Capital)

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.

Working Capital(Q: Sep. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(490.999 + 640.911 + 82.342) - (289.545 + 0 + 23.863)
=900.844

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(591.565 + 727.33 + 68.15) - (333.373 + 0 + 14.034)
=1039.638

When net working capital is negative, 0 is used.

So ROC (Joel Greenblatt) % of Lee Chang Yung Technology for the quarter that ended in Dec. 2025 can be restated as:

ROC (Joel Greenblatt) %(Q: Dec. 2025 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Sep. 2025  Q: Dec. 2025
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=-25/( ( (454.122 + max(900.844, 0)) + (446.167 + max(1039.638, 0)) )/ 2 )
=-25/( ( 1354.966 + 1485.805 )/ 2 )
=-25/1420.3855
=-1.76 %

Note: The EBIT data used here is four times the quarterly (Dec. 2025) 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 -1.76% mean?
Lee Chang Yung Technology (TPE:4989) has a ROC (Joel Greenblatt) % of -1.76% as of Dec. 2025. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Lee Chang Yung Technology and its competitors. According to the industry distribution chart, Lee Chang Yung Technology ranks #1411 out of 2500 companies in the Metals & Mining industry, placing it in the top 56.4%.
Is Lee Chang Yung Technology's ROC (Joel Greenblatt) % too high?
Lee Chang Yung Technology's current ROC (Joel Greenblatt) % is -1.76%. Based on the distribution chart, Lee Chang Yung Technology ranks #1411 out of 2500 companies in the Metals & Mining industry, which is below the industry midpoint. Overall, Lee Chang Yung Technology has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Lee Chang Yung Technology's ROC (Joel Greenblatt) % compare to SCCO and FCX?
According to the Metals & Mining industry distribution chart, Lee Chang Yung Technology ranks #1411 out of 2500 companies for ROC (Joel Greenblatt) %. This places Lee Chang Yung Technology in the lower half of its industry. 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 Metals & Mining company?
A good ROC (Joel Greenblatt) % depends on the Metals & Mining industry context. However, ROC (Joel Greenblatt) % 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 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 Lee Chang Yung Technology and its competitors. Lee Chang Yung Technology's current ROC (Joel Greenblatt) % is -1.76%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Lee Chang Yung Technology stock overvalued right now?
Based on GuruFocus' analysis, Lee Chang Yung Technology (TPE:4989) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$16.61, compared to a current price of NT$72.50 — trading 336.5% above its estimated fair value. The current ROC (Joel Greenblatt) % is -1.76%. Lee Chang Yung Technology's overall GF Score™ is 51/100 with 4 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 Lee Chang Yung Technology (TPE:4989), the current ROC (Joel Greenblatt) % is -1.76% as of Dec. 2025. 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 Lee Chang Yung Technology (TPE:4989) Overvalued in 2026?

Based on GuruFocus' analysis, Lee Chang Yung Technology stock appears to be overvalued. The current stock price of NT$72.50 is trading 336.5% above its estimated GF Value™ of NT$16.61. GuruFocus considers Lee Chang Yung Technology to be Significantly Overvalued.

Key valuation signals for TPE:4989:

  • ROC (Joel Greenblatt) %: -1.76%
  • GF Value™: NT$16.61 vs. price of NT$72.50 (336.5% above fair value)
  • GF Score™: 51/100 with 4 warning signs

No single metric tells the full story. See the TPE:4989 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Lee Chang Yung Technology Business Description

Address Bade Road, 5th Floor, No. 83, Section 4, Songshan District, Taipei City, TWN
Lee Chang Yung Technology Corp produces, manufactures, and sells electrolytic copper foil, an upstream material for printed circuit boards. The Group currently sells a single product, copper foil.
51GF Score

Get the complete analysis for TPE:4989

ROC (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$72.50
Price
NT$16.61
GF Value