Lee Chang Yung Technology (TPE:4989) OCF Margin %: -15.68% (As of Dec. 2025)


TPE:4989 Lee Chang Yung Technology Corp TPE:4989
40 GF Score
Price NT$82.40
GF Value NT$17.58
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Lee Chang Yung Technology OCF Margin %?

Lee Chang Yung Technology TPE:4989 -9.85% 40 OCF Margin % is -15.68% as of Dec. 2025. GuruFocus rates TPE:4989 with a GF Score™ of 40/100 and a GF Value™ of NT$17.58 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 846 Metals & Mining companies, Lee Chang Yung Technology ranks worse than 72.7% on this metric.

OCF Margin % is calculated as Cash Flow from Operations divided by its Revenue. Lee Chang Yung Technology's Cash Flow from Operations for the three months ended in Dec. 2025 was NT$-125 Mil. Lee Chang Yung Technology's Revenue for the three months ended in Dec. 2025 was NT$798 Mil. Therefore, Lee Chang Yung Technology's OCF Margin % for the quarter that ended in Dec. 2025 was -15.68%.

As of today, Lee Chang Yung Technology's current OCF Yield % is -3.35%.

The historical rank and industry rank for Lee Chang Yung Technology's OCF Margin % or its related term are showing as below:

TPE:4989' s OCF Margin % Range Over the Past 10 Years
Min: -14.84   Med: 7.06   Max: 17.67
Current: -14.84


During the past 13 years, the highest OCF Margin % of Lee Chang Yung Technology was 17.67%. The lowest was -14.84%. And the median was 7.06%.

TPE:4989's OCF Margin % is ranked worse than
72.7% of 846 companies
in the Metals & Mining industry
Industry Median: 4.465 vs TPE:4989: -14.84


Lee Chang Yung Technology OCF Margin % Related Terms


Lee Chang Yung Technology OCF Margin % Historical Data

* Premium members only.

The historical data trend for Lee Chang Yung Technology's OCF Margin % 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 OCF Margin % Chart

Lee Chang Yung Technology Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
OCF Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 9.18 8.14 -1.65 -6.48 -14.84

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
OCF Margin % 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 34.51 -13.01 -9.39 -21.86 -15.68

TPE:4989 vs SCCO, FCX: OCF Margin % Comparison

For the Copper subindustry, Lee Chang Yung Technology's OCF Margin %, along with its competitors' market caps and OCF Margin % 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 OCF Margin % vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Lee Chang Yung Technology's OCF Margin % distribution charts can be found below:

* The bar in red indicates where Lee Chang Yung Technology's OCF Margin % falls into.


TPE:4989
40GF Score
Lee Chang Yung Technology Corp TPE:4989
OCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Lee Chang Yung Technology OCF Margin % Calculation

OCF Margin % is the ratio of Cash Flow from Operations divided by net sales or Revenue, usually presented in percent.

Lee Chang Yung Technology's OCF Margin for the fiscal year that ended in Dec. 2025 is calculated as

OCF Margin=Cash Flow from Operations (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=-395.081/2661.652
=-14.84 %

Lee Chang Yung Technology's OCF Margin for the quarter that ended in Dec. 2025 is calculated as

OCF Margin=Cash Flow from Operations (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=-125.135/798.044
=-15.68 %

* 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.

Frequently Asked Questions Learn more about OCF Margin % →
What does a OCF Margin % of -15.68% mean?
Lee Chang Yung Technology (TPE:4989) has a OCF Margin % of -15.68% as of Dec. 2025. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Lee Chang Yung Technology and its competitors. According to the industry distribution chart, Lee Chang Yung Technology ranks #615 out of 846 companies in the Metals & Mining industry, placing it in the top 72.7%.
Is Lee Chang Yung Technology's OCF Margin % too high?
Lee Chang Yung Technology's current OCF Margin % is -15.68%. Based on the distribution chart, Lee Chang Yung Technology ranks #615 out of 846 companies in the Metals & Mining industry, which is below the industry midpoint. Overall, Lee Chang Yung Technology has a GF Score™ of 40/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Lee Chang Yung Technology's OCF Margin % compare to SCCO and FCX?
According to the Metals & Mining industry distribution chart, Lee Chang Yung Technology ranks #615 out of 846 companies for OCF Margin %. This places Lee Chang Yung Technology in the lower half of its industry. The industry median OCF Margin % is 4.47. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good OCF Margin % for a Metals & Mining company?
The median OCF Margin % among Metals & Mining companies is 4.47, based on 846 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % 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 OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Lee Chang Yung Technology and its competitors. For the Metals & Mining industry, the median OCF Margin % is 4.47 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Lee Chang Yung Technology's current OCF Margin % is -15.68%. 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$17.58, compared to a current price of NT$82.40 — trading 368.7% above its estimated fair value. The current OCF Margin % is -15.68%. Lee Chang Yung Technology's overall GF Score™ is 40/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For Lee Chang Yung Technology (TPE:4989), the current OCF Margin % is -15.68% 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$82.40 is trading 368.7% above its estimated GF Value™ of NT$17.58. GuruFocus considers Lee Chang Yung Technology to be Significantly Overvalued.

Key valuation signals for TPE:4989:

  • OCF Margin %: -15.68%
  • GF Value™: NT$17.58 vs. price of NT$82.40 (368.7% above fair value)
  • GF Score™: 40/100 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.
40GF Score

Get the complete analysis for TPE:4989

OCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$82.40
Price
NT$17.58
GF Value