Fulltech Fiber Glass (ROCO:1815) PE Ratio (TTM): 53.90 (As of Jul. 14, 2026) — 198% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:1815 Fulltech Fiber Glass Corp ROCO:1815
61 GF Score
Price NT$88.40
GF Value NT$35.97
Valuation Significantly Overvalued
! 1 Warning Sign
View Full Analysis

What is Fulltech Fiber Glass PE Ratio (TTM)?

Fulltech Fiber Glass ROCO:1815 -6.55% 61 PE Ratio (TTM) is 53.90 as of Jul. 14, 2026, which is 198% above its 10-year median of 18.09. GuruFocus rates ROCO:1815 with a GF Score™ of 61/100 and a GF Value™ of NT$35.97 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 1,641 Hardware companies, Fulltech Fiber Glass ranks worse than 69.59% on this metric.

The PE Ratio (TTM), or Price-to-Earnings ratio, or P/E Ratio, is a financial ratio used to compare a company's market price to its Earnings per Share (Diluted). As of today (2026-07-14), Fulltech Fiber Glass's share price is NT$88.40. Fulltech Fiber Glass's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Dec. 2025 was NT$1.64. Therefore, Fulltech Fiber Glass's PE Ratio (TTM) for today is 53.90.

Good Sign:

Fulltech Fiber Glass Corp stock PE Ratio (=57.93) is close to 1-year low of 53.41.


The historical rank and industry rank for Fulltech Fiber Glass's PE Ratio (TTM) or its related term are showing as below:

ROCO:1815' s PE Ratio (TTM) Range Over the Past 10 Years
Min: 9.28   Med: 18.09   Max: 262.18
Current: 53.91


During the past 13 years, the highest PE Ratio (TTM) of Fulltech Fiber Glass was 262.18. The lowest was 9.28. And the median was 18.09.


ROCO:1815's PE Ratio (TTM) is ranked worse than
69.59% of 1641 companies
in the Hardware industry
Industry Median: 31.05 vs ROCO:1815: 53.91

Fulltech Fiber Glass's Earnings per Share (Diluted) for the three months ended in Dec. 2025 was NT$0.84. Its Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Dec. 2025 was NT$1.64.

As of today (2026-07-14), Fulltech Fiber Glass's share price is NT$88.40. Fulltech Fiber Glass's EPS without NRI for the trailing twelve months (TTM) ended in Dec. 2025 was NT$1.64. Therefore, Fulltech Fiber Glass's PE Ratio without NRI for today is 53.90.

During the past 13 years, Fulltech Fiber Glass's highest PE Ratio without NRI was 262.18. The lowest was 9.28. And the median was 18.09.

Fulltech Fiber Glass's EPS without NRI for the three months ended in Dec. 2025 was NT$0.84. Its EPS without NRI for the trailing twelve months (TTM) ended in Dec. 2025 was NT$1.64.

During the past 12 months, Fulltech Fiber Glass's average EPS without NRI Growth Rate was 1161.50% per year. During the past 3 years, the average EPS without NRI Growth Rate was 188.90% per year.

During the past 13 years, Fulltech Fiber Glass's highest 3-Year average EPS without NRI Growth Rate was 188.90% per year. The lowest was -64.60% per year. And the median was 4.80% per year.

Fulltech Fiber Glass's EPS (Basic) for the three months ended in Dec. 2025 was NT$0.84. Its EPS (Basic) for the trailing twelve months (TTM) ended in Dec. 2025 was NT$1.64.


Fulltech Fiber Glass  (ROCO:1815) PE Ratio (TTM) Explanation

The PE Ratio (TTM) can be viewed as the number of years it takes for the company to earn back the price you pay for the stock. For example, if a company earns $2 a share per year, and the stock is traded at $30, the PE Ratio (TTM) is 15. Therefore it takes 15 years for the company to earn back the $30 you paid for its stock, assuming the earnings stays constant over the next 15 years.

In real business, earnings never stay constant. If a company can grow its earnings, it takes fewer years for the company to earn back the price you pay for the stock. If a company's earnings decline it takes more years. As a shareholder, you want the company to earn back the price you pay as soon as possible. Therefore, lower P/E stocks are more attractive than higher P/E stocks so long as the PE Ratio (TTM) is positive. Also for stocks with the same PE Ratio (TTM), the one with faster growth business is more attractive.

If a company loses money, the PE Ratio (TTM) becomes meaningless.

To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the PE Ratio (TTM) divided by the growth ratio. He thinks a company with a PE Ratio (TTM) equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a PE Ratio (TTM) of 20, instead of a company growing 10% a year with a PE Ratio (TTM) of 10.

Because the PE Ratio (TTM) measures how long it takes to earn back the price you pay, the PE Ratio (TTM) can be applied to the stocks across different industries. That is why it is the one of the most important and widely used indicators for the valuation of stocks.

Similar to the PE Ratio without NRI or PS Ratio or Price-to-Operating-Cash-Flow or Price-to-Free-Cash-Flow , the PE Ratio (TTM) measures the valuation based on the earning power of the company. This is where it is different from the PB Ratio , which measures the valuation based on the company's balance sheet.


Be Aware

Investors need to be aware that the PE Ratio (TTM) can be misleading a lot of times, especially when the underlying business is cyclical and unpredictable. As Peter Lynch pointed out, cyclical businesses have higher profit margins at the peaks of the business cycles. Their earnings are high and PE Ratio (TTM)s are artificially low. It is usually a bad idea to buy a cyclical business when the PE Ratio (TTM) is low. A better ratio to identify the time to buy a cyclical businesses is the PS Ratio .

PE Ratio (TTM) can also be affected by non-recurring-items such as the sale of part of businesses. This may increase for the current year or quarter dramatically. But it cannot be repeated over and over. Therefore PE Ratio without NRI is a more accurate indication of valuation than PE Ratio (TTM).


Fulltech Fiber Glass PE Ratio (TTM) Related Terms


Fulltech Fiber Glass PE Ratio (TTM) Historical Data

* Premium members only.

The historical data trend for Fulltech Fiber Glass's PE Ratio (TTM) 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.

Fulltech Fiber Glass PE Ratio (TTM) Chart

Fulltech Fiber Glass Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
PE Ratio (TTM)
Get a 7-Day Free Trial Premium Member Only Premium Member Only 13.69 163.37 At Loss 200.62 57.56

Fulltech Fiber Glass Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
PE Ratio (TTM) 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 200.62 51.09 66.85 59.20 57.56

ROCO:1815 vs APH, GLW: PE Ratio (TTM) Comparison

For the Electronic Components subindustry, Fulltech Fiber Glass's PE Ratio (TTM), along with its competitors' market caps and PE Ratio (TTM) 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 PE Ratio (TTM) vs Hardware Industry

For the Hardware industry and Technology sector, Fulltech Fiber Glass's PE Ratio (TTM) distribution charts can be found below:

* The bar in red indicates where Fulltech Fiber Glass's PE Ratio (TTM) falls into.


ROCO:1815
61GF Score
Fulltech Fiber Glass Corp ROCO:1815
PE Ratio (TTM) is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Fulltech Fiber Glass PE Ratio (TTM) Calculation

The PE Ratio (TTM), or Price-to-Earnings ratio, or P/E Ratio, is a financial ratio used to compare a company's market price to its Earnings per Share (Diluted). It is the most widely used ratio in the valuation of stocks.

Fulltech Fiber Glass's PE Ratio (TTM) for today is calculated as

PE Ratio (TTM)=Share Price/Earnings per Share (Diluted) (TTM)
=88.40/1.640
=53.90

Fulltech Fiber Glass's Share Price of today is NT$88.40.
Fulltech Fiber Glass's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Dec. 2025 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$1.64.

* 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.

It can also be calculated from the numbers for the whole company:

PE Ratio (TTM)=Market Cap /Net Income

There are at least three kinds of PE Ratio (TTM)s used by different investors. They are Trailing Twelve Month PE Ratio (TTM) or PE Ratio (TTM) (TTM), Forward PE Ratio, or PE Ratio without NRI. A new PE Ratio (TTM) based on inflation-adjusted normalized PE Ratio (TTM) is called Shiller PE Ratio, after Yale professor Robert Shiller.

In the calculation of PE Ratio (TTM), the earnings per share used are the earnings per share over the past 12 months. For Forward PE Ratio, the earnings are the expected earnings for the next twelve months. In the case of PE Ratio without NRI, the reported earnings less the non-recurring items are used.

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. Since it looks at the average over the last 10 years, Shiller PE Ratio is also called PE10.

Frequently Asked Questions Learn more about PE Ratio (TTM) →
What does a PE Ratio (TTM) of 53.90 mean?
Fulltech Fiber Glass (ROCO:1815) has a PE Ratio (TTM) of 53.90 as of Jul. 14, 2026. Trailing 12-month P/E ratio is the ratio of share price to a company's trailing 12-month earnings per share. View historical data on Fulltech Fiber Glass and its competitors. This is 198% above median its historical median of 18.09. Over the past decade, Fulltech Fiber Glass' PE Ratio (TTM) has ranged from 9.28 to 262.18. According to the industry distribution chart, Fulltech Fiber Glass ranks #1142 out of 1641 companies in the Hardware industry, placing it in the top 69.6%.
Is Fulltech Fiber Glass' PE Ratio (TTM) too high?
Fulltech Fiber Glass' current PE Ratio (TTM) of 53.90 is 198% above median its 10-year median of 18.09. Over the past 10 years, this metric has ranged from a low of 9.28 to a high of 262.18. The Hardware industry median PE Ratio (TTM) is 31.05. Fulltech Fiber Glass' value of 53.90 is 73.6% above this industry median. Based on the distribution chart, Fulltech Fiber Glass ranks #1142 out of 1641 companies in the Hardware industry, which is below the industry midpoint. Overall, Fulltech Fiber Glass has a GF Score™ of 61/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Fulltech Fiber Glass' PE Ratio (TTM) compare to APH and GLW?
According to the Hardware industry distribution chart, Fulltech Fiber Glass ranks #1142 out of 1641 companies for PE Ratio (TTM). This places Fulltech Fiber Glass in the lower half of its industry. The industry median PE Ratio (TTM) is 31.05. Fulltech Fiber Glass' value of 53.90 is 73.6% above this benchmark. Historically, Fulltech Fiber Glass' own PE Ratio (TTM) has ranged from 9.28 to 262.18 over the past decade. While the company's 10-year median is 18.09 vs. the industry median of 31.05, Fulltech Fiber Glass 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 PE Ratio (TTM) for a Hardware company?
The median PE Ratio (TTM) among Hardware companies is 31.05, based on 1,641 companies in the industry. Companies in the top quartile (top 25%) have a PE Ratio (TTM) significantly above this median, while those in the bottom quartile fall well below. However, PE Ratio (TTM) should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Fulltech Fiber Glass's current PE Ratio (TTM) of 53.90 is 73.6% 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 PE Ratio (TTM) mean?
A high PE Ratio (TTM) can signal that a stock is expensive relative to its fundamentals. Trailing 12-month P/E ratio is the ratio of share price to a company's trailing 12-month earnings per share. View historical data on Fulltech Fiber Glass and its competitors. For the Hardware industry, the median PE Ratio (TTM) is 31.05 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Fulltech Fiber Glass's current PE Ratio (TTM) is 53.90, which is 198% above median its own 10-year median of 18.09. 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$35.97, compared to a current price of NT$88.40 — trading 145.8% above its estimated fair value. The current PE Ratio (TTM) is 53.90, which is 198% above median its 10-year median of 18.09 and 73.6% above the Hardware industry median of 31.05. Fulltech Fiber Glass' 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 PE Ratio (TTM) calculated?
PE Ratio (TTM) is calculated from a company's financial statements. For Fulltech Fiber Glass (ROCO:1815), the current PE Ratio (TTM) is 53.90 as of Jul. 14, 2026. 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$88.40 is trading 145.8% above its estimated GF Value™ of NT$35.97. GuruFocus considers Fulltech Fiber Glass to be Significantly Overvalued.

Key valuation signals for ROCO:1815:

  • PE Ratio (TTM): 53.90 (198% above median its 10-year median of 18.09)
  • GF Value™: NT$35.97 vs. price of NT$88.40 (145.8% above fair value)
  • GF Score™: 61/100 with 1 warning sign
  • Industry Position: 73.6% above the Hardware median (#1142 of 1641)

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 Business Description

Address No. 8, Dougong 16th Road, Yunlin County, Douliu, TWN
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.
61GF Score

Get the complete analysis for ROCO:1815

PE Ratio (TTM) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$88.40
Price
NT$35.97
GF Value