LuxNet (ROCO:4979) OCF Margin %: 4.84% (As of Dec. 2025) — 38% Above Median

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ROCO:4979 LuxNet Corp ROCO:4979
61 GF Score
Price NT$410.00
GF Value NT$261.95
Valuation Significantly Overvalued
! 1 Warning Sign
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What is LuxNet OCF Margin %?

LuxNet ROCO:4979 +1.74% 61 OCF Margin % is 4.84% as of Dec. 2025, which is 38% above its 10-year median of 3.52. GuruFocus rates ROCO:4979 with a GF Score™ of 61/100 and a GF Value™ of NT$261.95 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 1,022 Semiconductors companies, LuxNet ranks better than 64.87% on this metric.

OCF Margin % is calculated as Cash Flow from Operations divided by its Revenue. LuxNet's Cash Flow from Operations for the three months ended in Dec. 2025 was NT$56 Mil. LuxNet's Revenue for the three months ended in Dec. 2025 was NT$1,154 Mil. Therefore, LuxNet's OCF Margin % for the quarter that ended in Dec. 2025 was 4.84%.

As of today, LuxNet's current OCF Yield % is 1.12%.

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

ROCO:4979' s OCF Margin % Range Over the Past 10 Years
Min: -18.36   Med: 3.52   Max: 22.21
Current: 15.54


During the past 13 years, the highest OCF Margin % of LuxNet was 22.21%. The lowest was -18.36%. And the median was 3.52%.

ROCO:4979's OCF Margin % is ranked better than
64.87% of 1022 companies
in the Semiconductors industry
Industry Median: 9.5 vs ROCO:4979: 15.54


LuxNet OCF Margin % Related Terms


LuxNet OCF Margin % Historical Data

* Premium members only.

The historical data trend for LuxNet'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.

LuxNet OCF Margin % Chart

LuxNet 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 -3.17 19.42 16.99 22.21 15.54

LuxNet 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 29.47 13.30 11.72 33.08 4.84

ROCO:4979 vs NVDA, AVGO, MU: OCF Margin % Comparison

For the Semiconductors subindustry, LuxNet'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.


LuxNet OCF Margin % vs Semiconductors Industry

For the Semiconductors industry and Technology sector, LuxNet's OCF Margin % distribution charts can be found below:

* The bar in red indicates where LuxNet's OCF Margin % falls into.


ROCO:4979
61GF Score
LuxNet Corp ROCO:4979
OCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

LuxNet OCF Margin % Calculation

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

LuxNet'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 )
=681.288/4384.846
=15.54 %

LuxNet'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 )
=55.884/1154.36
=4.84 %

* 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 4.84% mean?
LuxNet (ROCO:4979) has a OCF Margin % of 4.84% as of Dec. 2025. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on LuxNet and its competitors. This is 38% above median its historical median of 3.52. According to the industry distribution chart, LuxNet ranks #359 out of 1022 companies in the Semiconductors industry, placing it in the top 35.1%.
Is LuxNet's OCF Margin % too high?
LuxNet's current OCF Margin % of 4.84% is 38% above median its 10-year median of 3.52. The Semiconductors industry median OCF Margin % is 9.50. LuxNet's value of 4.84% is 49.1% below this industry median. Based on the distribution chart, LuxNet ranks #359 out of 1022 companies in the Semiconductors industry, which is above the industry midpoint. Overall, LuxNet has a GF Score™ of 61/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does LuxNet's OCF Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, LuxNet ranks #359 out of 1022 companies for OCF Margin %. This puts LuxNet in the upper half of its industry. The industry median OCF Margin % is 9.50. LuxNet's value of 4.84% is 49.1% below this benchmark. While the company's 10-year median is 3.52 vs. the industry median of 9.50, LuxNet 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 OCF Margin % for a Semiconductors company?
The median OCF Margin % among Semiconductors companies is 9.50, based on 1,022 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. LuxNet's current OCF Margin % of 4.84% is 49.1% 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 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 LuxNet and its competitors. For the Semiconductors industry, the median OCF Margin % is 9.50 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. LuxNet's current OCF Margin % is 4.84%, which is 38% above median its own 10-year median of 3.52. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is LuxNet stock overvalued right now?
Based on GuruFocus' analysis, LuxNet (ROCO:4979) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$261.95, compared to a current price of NT$410.00 — trading 56.5% above its estimated fair value. The current OCF Margin % is 4.84%, which is 38% above median its 10-year median of 3.52 and 49.1% below the Semiconductors industry median of 9.50. LuxNet's overall GF Score™ is 61/100 with 1 warning sign 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 LuxNet (ROCO:4979), the current OCF Margin % is 4.84% 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 LuxNet (ROCO:4979) Overvalued in 2026?

Based on GuruFocus' analysis, LuxNet stock appears to be overvalued. The current stock price of NT$410.00 is trading 56.5% above its estimated GF Value™ of NT$261.95. GuruFocus considers LuxNet to be Significantly Overvalued.

Key valuation signals for ROCO:4979:

  • OCF Margin %: 4.84% (38% above median its 10-year median of 3.52)
  • GF Value™: NT$261.95 vs. price of NT$410.00 (56.5% above fair value)
  • GF Score™: 61/100 with 1 warning sign
  • Industry Position: 49.1% below the Semiconductors median (#359 of 1022)

No single metric tells the full story. See the ROCO:4979 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


LuxNet Business Description

Address No. 6, Hejiang Road, Zhongli District, Taoyuan, TWN, 32061
LuxNet Corp is engaged in the manufacturing, processing and sale of electronic components and active components for optical communication and the retail sale of electronic materials. Its products include CHIP, TO-CAN and OPTICAL SUB-ASSEMBLY, and its main product is active components for optical communication and modules. It also provides OEM services including Contract Manufacturing Service, Module Manufacturing Service and Optical Engine Manufacturing Service. The Group's revenues are mainly from active components for optical communication and are recognized when control of the goods is transferred to the customer. It operates in Taiwan, China, North America and other regions, with North America generating maximum revenue.
61GF Score

Get the complete analysis for ROCO:4979

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

NT$410.00
Price
NT$261.95
GF Value