Tons Lightology (ROCO:4972) Interest Coverage: 0 (At Loss) (As of Dec. 2025)

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ROCO:4972 Tons Lightology Inc ROCO:4972
65 GF Score
Price NT$16.80
GF Value NT$20.13
Valuation Modestly Undervalued
! 3 Warning Signs
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What is Tons Lightology Interest Coverage?

Tons Lightology ROCO:4972 -0.59% 65 Interest Coverage is 0 (At Loss) as of Dec. 2025. GuruFocus rates ROCO:4972 with a GF Score™ of 65/100 and a GF Value™ of NT$20.13 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 294 Furnishings, Fixtures & Appliances companies, Tons Lightology ranks worse than 340135.71% 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. Tons Lightology's Operating Income for the three months ended in Dec. 2025 was NT$-22.1 Mil. Tons Lightology's Interest Expense for the three months ended in Dec. 2025 was NT$-0.1 Mil. did not have earnings to cover the interest expense. The higher the ratio, the stronger the company's financial strength is.

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


ROCO:4972's Interest Coverage is not ranked *
in the Furnishings, Fixtures & Appliances industry.
Industry Median: 10.955
* Ranked among companies with meaningful Interest Coverage only.

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


Tons Lightology  (ROCO:4972) 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 .


Tons Lightology Interest Coverage Related Terms


Tons Lightology Interest Coverage Historical Data

* Premium members only.

The historical data trend for Tons Lightology'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.

Tons Lightology Interest Coverage Chart

Tons Lightology 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 432.45 421.65 0.00 0.00 0.00

Tons Lightology 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 0.00 0.00 0.00 0.00 0.00

ROCO:4972 vs SN, SGI, MHK: Interest Coverage Comparison

For the Furnishings, Fixtures & Appliances subindustry, Tons Lightology'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.


Tons Lightology Interest Coverage vs Furnishings, Fixtures & Appliances Industry

For the Furnishings, Fixtures & Appliances industry and Consumer Cyclical sector, Tons Lightology's Interest Coverage distribution charts can be found below:

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


ROCO:4972
65GF Score
Tons Lightology Inc ROCO:4972
Interest Coverage is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tons Lightology 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.

Tons Lightology'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, Tons Lightology's Interest Expense was NT$-2.2 Mil. Its Operating Income was NT$-122.7 Mil. And its Long-Term Debt & Capital Lease Obligation was NT$0.3 Mil.

Tons Lightology did not have earnings to cover the interest expense.

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

Here, for the three months ended in Dec. 2025, Tons Lightology's Interest Expense was NT$-0.1 Mil. Its Operating Income was NT$-22.1 Mil. And its Long-Term Debt & Capital Lease Obligation was NT$0.3 Mil.

Tons Lightology did not have earnings to cover the interest expense.

* 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 0 (At Loss) mean?
Tons Lightology (ROCO:4972) has a Interest Coverage of 0 (At Loss) as of Dec. 2025. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on Tons Lightology and its competitors. According to the industry distribution chart, Tons Lightology ranks #999999 out of 294 companies in the Furnishings, Fixtures & Appliances industry.
Is Tons Lightology's Interest Coverage too high?
Tons Lightology's current Interest Coverage is 0 (At Loss). Based on the distribution chart, Tons Lightology ranks #999999 out of 294 companies in the Furnishings, Fixtures & Appliances industry, which is in the bottom quartile relative to peers. Overall, Tons Lightology has a GF Score™ of 65/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Tons Lightology's Interest Coverage compare to SN and SGI?
According to the Furnishings, Fixtures & Appliances industry distribution chart, Tons Lightology ranks #999999 out of 294 companies for Interest Coverage. This places Tons Lightology in the lower half of its industry. The industry median Interest Coverage is 10.96. 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 Furnishings, Fixtures & Appliances company?
The median Interest Coverage among Furnishings, Fixtures & Appliances companies is 10.96, based on 294 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. 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 Tons Lightology and its competitors. For the Furnishings, Fixtures & Appliances industry, the median Interest Coverage is 10.96 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tons Lightology's current Interest Coverage is 0 (At Loss). However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tons Lightology stock overvalued right now?
Based on GuruFocus' analysis, Tons Lightology (ROCO:4972) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$20.13, compared to a current price of NT$16.80 — trading 16.5% below its estimated fair value. The current Interest Coverage is 0 (At Loss). Tons Lightology's overall GF Score™ is 65/100 with 3 warning signs 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 Tons Lightology (ROCO:4972), the current Interest Coverage is 0 (At Loss) 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 Tons Lightology (ROCO:4972) Overvalued in 2026?

Based on GuruFocus' analysis, Tons Lightology stock appears to be undervalued. The current stock price of NT$16.80 is trading 16.5% below its estimated GF Value™ of NT$20.13. GuruFocus considers Tons Lightology to be Modestly Undervalued.

Key valuation signals for ROCO:4972:

  • Interest Coverage: 0 (At Loss)
  • GF Value™: NT$20.13 vs. price of NT$16.80 (16.5% below fair value)
  • GF Score™: 65/100 with 3 warning signs

No single metric tells the full story. See the ROCO:4972 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tons Lightology Business Description

Address No. 236, Bo’ai Street, 4th Floor, Shulin District, New Taipei, TWN, 23845
Tons Lightology Inc engages in the design, manufacture, and sale of commercial lighting fixtures. The company's operating segment includes Tons Lightology Inc; Titan Lighting Co. Ltd, Zhongshan Tons Lighting Co. Ltd, and StrongLED Lighting System (Cayman) Co. Ltd. It generates maximum revenue from the Tons Lightology Inc. segment. Geographically, it derives a majority of revenue from Europe and also has a presence in Asia, Oceania, and other countries. It focuses on indoor lighting and outdoor lighting. The company's products are used for museum/gallery, commercial, hotel, club, office, and Outdoor applications.
65GF Score

Get the complete analysis for ROCO:4972

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

NT$16.80
Price
NT$20.13
GF Value