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Asia Optical CoTPE:3019 +2.79%82 PB Ratio is 2.77 as of Jul. 14, 2026, which is 50% above its 10-year median of 1.85. GuruFocus rates TPE:3019 with a GF Score™ of 82/100 and a GF Value™ of NT$138.21 (Fairly Valued). The stock has 1 warning sign investors should review. Among 2,421 Hardware companies, Asia Optical Co ranks worse than 55.39% on this metric.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-07-14), Asia Optical Co's share price is NT$147.50. Asia Optical Co's Book Value per Share for the quarter that ended in Dec. 2025 was NT$53.26. Hence, Asia Optical Co's PB Ratio of today is 2.77.
The historical rank and industry rank for Asia Optical Co's PB Ratio or its related term are showing as below:
TPE:3019'
s PB Ratio Range Over the Past 10 Years
Min: 0.68 Med: 1.85 Max: 3.88
Current: 2.76
During the past 13 years, Asia Optical Co's highest PB Ratio was 3.88. The lowest was 0.68. And the median was 1.85.
TPE:3019's PB Ratio is ranked worse than 55.39% of 2421
companies
in the Hardware industry
Industry Median: 2.31
vs TPE:3019: 2.76
During the past 12 months, Asia Optical Co's average Book Value Per Share Growth Rate was 1.40% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 6.50% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 6.10% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 2.90% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Asia Optical Co was 6.70% per year. The lowest was -9.80% per year. And the median was 0.70% per year.
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Asia Optical Co PB Ratio Related Terms
Asia Optical Co PB Ratio Historical Data
* Premium members only.
The historical data trend for Asia Optical Co's PB Ratio 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.
For the Electronic Components subindustry, Asia Optical Co's PB Ratio, along with its competitors' market caps and PB Ratio 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.
Asia Optical Co PB Ratio vs Hardware Industry
For the Hardware industry and Technology sector, Asia Optical Co's PB Ratio distribution charts can be found below:
* The bar in red indicates where Asia Optical Co's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
Asia Optical Co's PB Ratio for today is calculated as follows:
* 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:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Asia Optical Co (TPE:3019) has a PB Ratio of 2.77 as of Jul. 14, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Asia Optical Co and its competitors. This is 50% above median its historical median of 1.85. Over the past decade, Asia Optical Co's PB Ratio has ranged from 0.68 to 3.88. According to the industry distribution chart, Asia Optical Co ranks #1341 out of 2421 companies in the Hardware industry, placing it in the top 55.4%.
Is Asia Optical Co's PB Ratio too high?
Asia Optical Co's current PB Ratio of 2.77 is 50% above median its 10-year median of 1.85. Over the past 10 years, this metric has ranged from a low of 0.68 to a high of 3.88. The Hardware industry median PB Ratio is 2.31. Asia Optical Co's value of 2.77 is 19.9% above this industry median. Based on the distribution chart, Asia Optical Co ranks #1341 out of 2421 companies in the Hardware industry, which is below the industry midpoint. Overall, Asia Optical Co has a GF Score™ of 82/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Asia Optical Co's PB Ratio compare to APH and GLW?
According to the Hardware industry distribution chart, Asia Optical Co ranks #1341 out of 2421 companies for PB Ratio. This places Asia Optical Co in the lower half of its industry. The industry median PB Ratio is 2.31. Asia Optical Co's value of 2.77 is 19.9% above this benchmark. Historically, Asia Optical Co's own PB Ratio has ranged from 0.68 to 3.88 over the past decade. While the company's 10-year median is 1.85 vs. the industry median of 2.31, Asia Optical Co 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 PB Ratio for a Hardware company?
The median PB Ratio among Hardware companies is 2.31, based on 2,421 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Asia Optical Co's current PB Ratio of 2.77 is 19.9% 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 PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Asia Optical Co and its competitors. For the Hardware industry, the median PB Ratio is 2.31 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Asia Optical Co's current PB Ratio is 2.77, which is 50% above median its own 10-year median of 1.85. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Asia Optical Co stock overvalued right now?
Based on GuruFocus' analysis, Asia Optical Co (TPE:3019) is currently considered Fairly Valued. The stock's GF Value™ is NT$138.21, compared to a current price of NT$147.50 — trading 6.7% above its estimated fair value. The current PB Ratio is 2.77, which is 50% above median its 10-year median of 1.85 and 19.9% above the Hardware industry median of 2.31. Asia Optical Co's overall GF Score™ is 82/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Asia Optical Co (TPE:3019), the current PB Ratio is 2.77 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 Asia Optical Co (TPE:3019) Overvalued in 2026?
Based on GuruFocus' analysis, Asia Optical Co stock appears to be overvalued.
The current stock price of NT$147.50 is trading 6.7% above its estimated GF Value™ of NT$138.21.
GuruFocus considers Asia Optical Co to be Fairly Valued.
Key valuation signals for TPE:3019:
PB Ratio: 2.77 (50% above median its 10-year median of 1.85)
GF Value™: NT$138.21 vs. price of NT$147.50 (6.7% above fair value)
Industry Position: 19.9% above the Hardware median (#1341 of 2421)
No single metric tells the full story. See the TPE:3019 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Asia Optical Co Inc is engaged in the manufacturing and sale of cameras, rangefinders, riflescopes, photocopier lens, scanner lens and optical components. The companies reportable segments included optical components, contact image sensor modules, optronics components, optronics products and digital camera. The majority of the revenue is generated from optical components. The company operates in two principal geographical areas Asia and America.
82GF Score
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