Fulltech Fiber GlassROCO:1815 -3.02%59 Interest Coverage is 3.92 as of Dec. 2025, which is 25% below its 10-year median of 5.22. GuruFocus rates ROCO:1815 with a GF Score™ of 59/100 and a GF Value™ of NT$35.94 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 1,672 Hardware companies, Fulltech Fiber Glass ranks worse than 74.16% 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. Fulltech Fiber Glass's
Operating Income
for the
three
months ended in Dec. 2025 was NT$199 Mil. Fulltech Fiber Glass's Interest Expense for the
three
months ended in Dec. 2025 was NT$-51 Mil.
Fulltech Fiber Glass's interest coverage for the quarter that ended in Dec. 2025 was 3.92.
The higher the ratio, the stronger the company's financial strength is.
The historical rank and industry rank for Fulltech Fiber Glass's Interest Coverage or its related term are showing as below:
ROCO:1815'
s Interest Coverage Range Over the Past 10 Years
Min: 0.45 Med: 5.22 Max: 8.36
Current: 4.99
ROCO:1815's Interest Coverage is ranked worse than 74.16% of 1672
companies
in the Hardware industry
Industry Median: 13.675
vs ROCO:1815: 4.99
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 .
Fulltech Fiber Glass Interest Coverage Related Terms
Fulltech Fiber Glass Interest Coverage Historical Data
* Premium members only.
The historical data trend for Fulltech Fiber Glass'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.
ROCO:1815 vs APH, GLW: Interest Coverage Comparison
For the Electronic Components subindustry, Fulltech Fiber Glass'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.
Fulltech Fiber Glass Interest Coverage vs Hardware Industry
For the Hardware industry and Technology sector, Fulltech Fiber Glass's Interest Coverage distribution charts can be found below:
* The bar in red indicates where Fulltech Fiber Glass's Interest Coverage falls into.
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:
* 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.
Fulltech Fiber Glass (ROCO:1815) has a Interest Coverage of 3.92 as of Dec. 2025. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on Fulltech Fiber Glass and its competitors. This is 25% below median its historical median of 5.22. Over the past decade, Fulltech Fiber Glass' Interest Coverage has ranged from 0.45 to 8.36. According to the industry distribution chart, Fulltech Fiber Glass ranks #1240 out of 1672 companies in the Hardware industry, placing it in the top 74.2%.
Is Fulltech Fiber Glass' Interest Coverage too high?
Fulltech Fiber Glass' current Interest Coverage of 3.92 is 25% below median its 10-year median of 5.22. Over the past 10 years, this metric has ranged from a low of 0.45 to a high of 8.36. The Hardware industry median Interest Coverage is 13.68. Fulltech Fiber Glass' value of 3.92 is 71.3% below this industry median. Based on the distribution chart, Fulltech Fiber Glass ranks #1240 out of 1672 companies in the Hardware industry, which is below the industry midpoint. Overall, Fulltech Fiber Glass has a GF Score™ of 59/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Fulltech Fiber Glass' Interest Coverage compare to APH and GLW?
According to the Hardware industry distribution chart, Fulltech Fiber Glass ranks #1240 out of 1672 companies for Interest Coverage. This places Fulltech Fiber Glass in the lower half of its industry. The industry median Interest Coverage is 13.68. Fulltech Fiber Glass' value of 3.92 is 71.3% below this benchmark. Historically, Fulltech Fiber Glass' own Interest Coverage has ranged from 0.45 to 8.36 over the past decade. While the company's 10-year median is 5.22 vs. the industry median of 13.68, Fulltech Fiber Glass 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 Interest Coverage for a Hardware company?
The median Interest Coverage among Hardware companies is 13.68, based on 1,672 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. Fulltech Fiber Glass's current Interest Coverage of 3.92 is 71.3% 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 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 Fulltech Fiber Glass and its competitors. For the Hardware industry, the median Interest Coverage is 13.68 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Fulltech Fiber Glass's current Interest Coverage is 3.92, which is 25% below median its own 10-year median of 5.22. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Fulltech Fiber Glass stock overvalued right now?
Based on GuruFocus' analysis, Fulltech Fiber Glass (ROCO:1815) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$35.94, compared to a current price of NT$96.50 — trading 168.5% above its estimated fair value. The current Interest Coverage is 3.92, which is 25% below median its 10-year median of 5.22 and 71.3% below the Hardware industry median of 13.68. Fulltech Fiber Glass' overall GF Score™ is 59/100 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 Fulltech Fiber Glass (ROCO:1815), the current Interest Coverage is 3.92 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 Fulltech Fiber Glass (ROCO:1815) Overvalued in 2026?
Based on GuruFocus' analysis, Fulltech Fiber Glass stock appears to be overvalued.
The current stock price of NT$96.50 is trading 168.5% above its estimated GF Value™ of NT$35.94.
GuruFocus considers Fulltech Fiber Glass to be Significantly Overvalued.
Key valuation signals for ROCO:1815:
Interest Coverage: 3.92 (25% below median its 10-year median of 5.22)
GF Value™: NT$35.94 vs. price of NT$96.50 (168.5% above fair value)
Industry Position: 71.3% below the Hardware median (#1240 of 1672)
No single metric tells the full story. See the ROCO:1815 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Fulltech Fiber Glass Corp is engaged in producing and selling fiberglass yarn and fiberglass fabric, which are the main upstream materials for Printed Circuit Boards. The reportable segments of the company are the Fiberglass Yarn and the Fiberglass Fabric segment. Geographically, the company generates a majority of its revenue from Taiwan and the rest from China.
59GF Score
Get the complete analysis for ROCO:1815
Interest Coverage is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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