LuxNet (ROCO:4979) Interest Coverage: 45.48 (As of Dec. 2025) — 32% Below 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
View Full Analysis

What is LuxNet Interest Coverage?

LuxNet ROCO:4979 +1.74% 61 Interest Coverage is 45.48 as of Dec. 2025, which is 32% below its 10-year median of 66.86. 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 637 Semiconductors companies, LuxNet ranks better than 59.5% on this metric.

Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's Operating Income by its Interest Expense. LuxNet's Operating Income for the three months ended in Dec. 2025 was NT$215 Mil. LuxNet's Interest Expense for the three months ended in Dec. 2025 was NT$-5 Mil. LuxNet's interest coverage for the quarter that ended in Dec. 2025 was 45.48. The higher the ratio, the stronger the company's financial strength is.

The historical rank and industry rank for LuxNet's Interest Coverage or its related term are showing as below:

ROCO:4979' s Interest Coverage Range Over the Past 10 Years
Min: 37.94   Med: 66.86   Max: 304.39
Current: 38.88


ROCO:4979's Interest Coverage is ranked better than
59.5% of 637 companies
in the Semiconductors industry
Industry Median: 20.5 vs ROCO:4979: 38.88

Note: If both Interest Expense and Interest Income are empty, while Net Interest Income is negative, then use Net Interest Income as Interest Expense.


LuxNet  (ROCO:4979) Interest Coverage Explanation

Ben Graham requires that a company has a minimum interest coverage of 5 with the companies he invested. If the interest coverage is less than 2, the company is burdened by debt. Any business slow or recession may drag the company into a situation where it cannot pay the interest on its debt.

Interest Coverage is an important factor when GuruFocus ranks a company's overage Financial Strength .


LuxNet Interest Coverage Related Terms


LuxNet Interest Coverage Historical Data

* Premium members only.

The historical data trend for LuxNet's Interest Coverage 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.

Note: For Interest Coverage, "No debt" indicates no long-term debt. An indication of "No Debt" does not necessarily mean that the company has no long-term debt obligations; it could be due to missing data in the quarterly or annual report. Use caution when interpreting this information.

LuxNet Interest Coverage Chart

LuxNet Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Interest Coverage
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 37.94 94.84 304.39 38.88

LuxNet Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Interest Coverage 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 86.58 41.80 31.66 36.63 45.48

ROCO:4979 vs NVDA, AVGO, MU: Interest Coverage Comparison

For the Semiconductors subindustry, LuxNet's Interest Coverage, along with its competitors' market caps and Interest Coverage 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 Interest Coverage vs Semiconductors Industry

For the Semiconductors industry and Technology sector, LuxNet's Interest Coverage distribution charts can be found below:

* The bar in red indicates where LuxNet's Interest Coverage falls into.


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

LuxNet Interest Coverage Calculation

Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's Operating Income (EBIT) by its Interest Expense:

If Interest Expense is negative and Operating Income is positive, then

Interest Coverage=-1* Operating Income /Interest Expense

Else if Interest Expense is negative and Operating Income is negative, then

The company did not have earnings to cover the interest expense.

Else if Interest Expense is 0 and Long-Term Debt & Capital Lease Obligation is 0, then

The company had no debt (1).


Note: If both Interest Expense and Interest Income are empty, while Net Interest Income is negative, then use Net Interest Income as Interest Expense.

LuxNet's Interest Coverage for the fiscal year that ended in Dec. 2025 is calculated as

Here, for the fiscal year that ended in Dec. 2025, LuxNet's Interest Expense was NT$-19 Mil. Its Operating Income was NT$737 Mil. And its Long-Term Debt & Capital Lease Obligation was NT$724 Mil.

Interest Coverage=-1* Operating Income (A: Dec. 2025 )/Interest Expense (A: Dec. 2025 )
=-1*737.126/-18.959
=38.88

LuxNet's Interest Coverage for the quarter that ended in Dec. 2025 is calculated as

Here, for the three months ended in Dec. 2025, LuxNet's Interest Expense was NT$-5 Mil. Its Operating Income was NT$215 Mil. And its Long-Term Debt & Capital Lease Obligation was NT$724 Mil.

Interest Coverage=-1* Operating Income (Q: Dec. 2025 )/Interest Expense (Q: Dec. 2025 )
=-1*214.9/-4.725
=45.48

* 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.

The higher the ratio, the stronger the company's Financial Strength is.

Frequently Asked Questions Learn more about Interest Coverage →
What does a Interest Coverage of 45.48 mean?
LuxNet (ROCO:4979) has a Interest Coverage of 45.48 as of Dec. 2025. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on LuxNet and its competitors. This is 32% below median its historical median of 66.86. Over the past decade, LuxNet's Interest Coverage has ranged from 37.94 to 304.39. According to the industry distribution chart, LuxNet ranks #258 out of 637 companies in the Semiconductors industry, placing it in the top 40.5%.
Is LuxNet's Interest Coverage too high?
LuxNet's current Interest Coverage of 45.48 is 32% below median its 10-year median of 66.86. Over the past 10 years, this metric has ranged from a low of 37.94 to a high of 304.39. The Semiconductors industry median Interest Coverage is 20.50. LuxNet's value of 45.48 is 121.9% above this industry median. Based on the distribution chart, LuxNet ranks #258 out of 637 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 Interest Coverage compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, LuxNet ranks #258 out of 637 companies for Interest Coverage. This puts LuxNet in the upper half of its industry. The industry median Interest Coverage is 20.50. LuxNet's value of 45.48 is 121.9% above this benchmark. Historically, LuxNet's own Interest Coverage has ranged from 37.94 to 304.39 over the past decade. While the company's 10-year median is 66.86 vs. the industry median of 20.50, LuxNet has consistently been above 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 Interest Coverage for a Semiconductors company?
The median Interest Coverage among Semiconductors companies is 20.50, based on 637 companies in the industry. Companies in the top quartile (top 25%) have a Interest Coverage significantly above this median, while those in the bottom quartile fall well below. However, Interest Coverage should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. LuxNet's current Interest Coverage of 45.48 is 121.9% above 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 Interest Coverage mean?
A high Interest Coverage can signal that a stock is expensive relative to its fundamentals. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on LuxNet and its competitors. For the Semiconductors industry, the median Interest Coverage is 20.50 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. LuxNet's current Interest Coverage is 45.48, which is 32% below median its own 10-year median of 66.86. 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 Interest Coverage is 45.48, which is 32% below median its 10-year median of 66.86 and 121.9% above the Semiconductors industry median of 20.50. 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 Interest Coverage calculated?
Interest Coverage is calculated from a company's financial statements. For LuxNet (ROCO:4979), the current Interest Coverage is 45.48 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:

  • Interest Coverage: 45.48 (32% below median its 10-year median of 66.86)
  • 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: 121.9% above the Semiconductors median (#258 of 637)

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

Interest Coverage 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