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APAC Opto ElectronicsROCO:4908 +4.71%65 PE Ratio (TTM) is 73.35 as of Jul. 23, 2026, which is 280% above its 10-year median of 19.32. GuruFocus rates ROCO:4908 with a GF Score™ of 65/100 and a GF Value™ of NT$74.32 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 1,639 Hardware companies, APAC Opto Electronics ranks worse than 77.55% 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 (2026-07-23), APAC Opto Electronics's share price is
NT$144.50.
APAC Opto Electronics's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Dec. 2025 was NT$1.97. Therefore, APAC Opto Electronics's PE Ratio (TTM) for today is 73.35.
The historical rank and industry rank for APAC Opto Electronics's PE Ratio (TTM) or its related term are showing as below:
ROCO:4908'
s PE Ratio (TTM) Range Over the Past 10 Years
Min: 8.4 Med: 19.32 Max: 135.53
Current: 73.35
During the past 13 years, the highest PE Ratio (TTM) of APAC Opto Electronics was 135.53. The lowest was 8.40. And the median was 19.32.
ROCO:4908's PE Ratio (TTM) is ranked worse than 77.55% of 1639
companies
in the Hardware industry
Industry Median: 29.16
vs ROCO:4908: 73.35
During the past 12 months, APAC Opto Electronics's average EPS without NRIGrowth Rate was -29.90% per year.
During the past 3 years, the average EPS without NRIGrowth Rate was -15.70% per year.
During the past 5 years, the average EPS without NRIGrowth Rate was 6.70% per year.
During the past 10 years, the average EPS without NRIGrowth Rate was 10.80% per year.
During the past 13 years, APAC Opto Electronics's highest 3-Year average EPS without NRI Growth Rate was 29.80% per year. The lowest was -31.50% per year. And the median was 3.55% per year.
APAC Opto Electronics's EPS (Basic) for the
three
months ended in Dec. 2025 was NT$0.59.
Its EPS (Basic) for the trailing twelve months (TTM) ended in Dec. 2025 was NT$1.97.
APAC Opto Electronics (ROCO:4908) 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.
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).
APAC Opto Electronics PE Ratio (TTM) Related Terms
APAC Opto Electronics PE Ratio (TTM) Historical Data
* Premium members only.
The historical data trend for APAC Opto Electronics'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.
ROCO:4908 vs CSCO, CIEN, MSI: PE Ratio (TTM) Comparison
For the Communication Equipment subindustry, APAC Opto Electronics'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.
APAC Opto Electronics PE Ratio (TTM) vs Hardware Industry
For the Hardware industry and Technology sector, APAC Opto Electronics's PE Ratio (TTM) distribution charts can be found below:
* The bar in red indicates where APAC Opto Electronics's PE Ratio (TTM) falls into.
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.
APAC Opto Electronics's Share Price of today is NT$144.50.
APAC Opto Electronics'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$1.97.
* 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:
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.
APAC Opto Electronics (ROCO:4908) has a PE Ratio (TTM) of 73.35 as of Jul. 23, 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 APAC Opto Electronics and its competitors. This is 280% above median its historical median of 19.32. Over the past decade, APAC Opto Electronics' PE Ratio (TTM) has ranged from 8.40 to 135.53. According to the industry distribution chart, APAC Opto Electronics ranks #1271 out of 1639 companies in the Hardware industry, placing it in the top 77.5%.
Is APAC Opto Electronics' PE Ratio (TTM) too high?
APAC Opto Electronics' current PE Ratio (TTM) of 73.35 is 280% above median its 10-year median of 19.32. Over the past 10 years, this metric has ranged from a low of 8.40 to a high of 135.53. The Hardware industry median PE Ratio (TTM) is 29.16. APAC Opto Electronics' value of 73.35 is 151.5% above this industry median. Based on the distribution chart, APAC Opto Electronics ranks #1271 out of 1639 companies in the Hardware industry, which is in the bottom quartile relative to peers. Overall, APAC Opto Electronics has a GF Score™ of 65/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does APAC Opto Electronics' PE Ratio (TTM) compare to CSCO and CIEN?
According to the Hardware industry distribution chart, APAC Opto Electronics ranks #1271 out of 1639 companies for PE Ratio (TTM). This places APAC Opto Electronics in the lower half of its industry. The industry median PE Ratio (TTM) is 29.16. APAC Opto Electronics' value of 73.35 is 151.5% above this benchmark. Historically, APAC Opto Electronics' own PE Ratio (TTM) has ranged from 8.40 to 135.53 over the past decade. While the company's 10-year median is 19.32 vs. the industry median of 29.16, APAC Opto Electronics 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 29.16, based on 1,639 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. APAC Opto Electronics's current PE Ratio (TTM) of 73.35 is 151.5% 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 APAC Opto Electronics and its competitors. For the Hardware industry, the median PE Ratio (TTM) is 29.16 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. APAC Opto Electronics's current PE Ratio (TTM) is 73.35, which is 280% above median its own 10-year median of 19.32. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is APAC Opto Electronics stock overvalued right now?
Based on GuruFocus' analysis, APAC Opto Electronics (ROCO:4908) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$74.32, compared to a current price of NT$144.50 — trading 94.4% above its estimated fair value. The current PE Ratio (TTM) is 73.35, which is 280% above median its 10-year median of 19.32 and 151.5% above the Hardware industry median of 29.16. APAC Opto Electronics' overall GF Score™ is 65/100 with 2 warning signs 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 APAC Opto Electronics (ROCO:4908), the current PE Ratio (TTM) is 73.35 as of Jul. 23, 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 APAC Opto Electronics (ROCO:4908) Overvalued in 2026?
Based on GuruFocus' analysis, APAC Opto Electronics stock appears to be overvalued.
The current stock price of NT$144.50 is trading 94.4% above its estimated GF Value™ of NT$74.32.
GuruFocus considers APAC Opto Electronics to be Significantly Overvalued.
Key valuation signals for ROCO:4908:
PE Ratio (TTM): 73.35 (280% above median its 10-year median of 19.32)
GF Value™: NT$74.32 vs. price of NT$144.50 (94.4% above fair value)
Industry Position: 151.5% above the Hardware median (#1271 of 1639)
No single metric tells the full story. See the ROCO:4908 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
APAC Opto Electronics Inc is a manufacturer of wired and wireless communication equipment and electronic components, and the wholesale and retail of telecommunications equipment and electronic materials. The products of the company include optical extender modules, optical transceiver modules, Optical extender modules, and copper transceiver modules.
65GF Score
Get the complete analysis for ROCO:4908
PE Ratio (TTM) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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