Applied Optoelectronics (FRA:A59) PB Ratio: 8.10 (As of Jul. 14, 2026) — 440% Above Median

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FRA:A59 Applied Optoelectronics Inc FRA:A59
46 GF Score
Price €98.17
GF Value €17.78
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Applied Optoelectronics PB Ratio?

Applied Optoelectronics FRA:A59 -7.63% 46 PB Ratio is 8.10 as of Jul. 14, 2026, which is 440% above its 10-year median of 1.50. GuruFocus rates FRA:A59 with a GF Score™ of 46/100 and a GF Value™ of €17.78 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 2,421 Hardware companies, Applied Optoelectronics ranks worse than 86.53% 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), Applied Optoelectronics's share price is €98.17. Applied Optoelectronics's Book Value per Share for the quarter that ended in Mar. 2026 was €12.11. Hence, Applied Optoelectronics's PB Ratio of today is 8.10.

The historical rank and industry rank for Applied Optoelectronics's PB Ratio or its related term are showing as below:

FRA:A59' s PB Ratio Range Over the Past 10 Years
Min: 0.2   Med: 1.5   Max: 13.58
Current: 7.99

During the past 13 years, Applied Optoelectronics's highest PB Ratio was 13.58. The lowest was 0.20. And the median was 1.50.

FRA:A59's PB Ratio is ranked worse than
86.53% of 2421 companies
in the Hardware industry
Industry Median: 2.29 vs FRA:A59: 7.99

During the past 12 months, Applied Optoelectronics's average Book Value Per Share Growth Rate was 141.20% per year. During the past 3 years, the average Book Value Per Share Growth Rate was 14.90% per year. During the past 5 years, the average Book Value Per Share Growth Rate was -7.80% per year. During the past 10 years, the average Book Value Per Share Growth Rate was -8.30% per year.

During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Applied Optoelectronics was 67.90% per year. The lowest was -22.00% per year. And the median was 9.05% per year.

Back to Basics: PB Ratio


Applied Optoelectronics  (FRA:A59) PB Ratio Explanation

Unlike valuation ratios relative to the earning power such as PE Ratio, PE Ratio without NRI, PS Ratio, Price-to-Operating-Cash-Flow , or Price-to-Free-Cash-Flow, the PB Ratio measures the valuation of the stock relative to the underlying asset of the company.

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.


Applied Optoelectronics PB Ratio Related Terms


Applied Optoelectronics PB Ratio Historical Data

* Premium members only.

The historical data trend for Applied Optoelectronics'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.

Applied Optoelectronics PB Ratio Chart

Applied Optoelectronics Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.57 0.29 3.81 8.08 3.69

Applied Optoelectronics Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
PB Ratio 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 2.76 3.63 3.20 3.69 5.98

FRA:A59 vs VIAV, ZBRA, VSAT: PB Ratio Comparison

For the Communication Equipment subindustry, Applied Optoelectronics'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.


Applied Optoelectronics PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Applied Optoelectronics's PB Ratio distribution charts can be found below:

* The bar in red indicates where Applied Optoelectronics's PB Ratio falls into.


FRA:A59
46GF Score
Applied Optoelectronics Inc FRA:A59
PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Applied Optoelectronics PB Ratio Calculation

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.

Applied Optoelectronics's PB Ratio for today is calculated as follows:

PB Ratio=Share Price/Book Value per Share (Q: Mar. 2026)
=98.17/12.114
=8.10

* 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.

Frequently Asked Questions Learn more about PB Ratio →
What does a PB Ratio of 8.10 mean?
Applied Optoelectronics (FRA:A59) has a PB Ratio of 8.10 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 Applied Optoelectronics and its competitors. This is 440% above median its historical median of 1.50. Over the past decade, Applied Optoelectronics' PB Ratio has ranged from 0.20 to 13.58. According to the industry distribution chart, Applied Optoelectronics ranks #2095 out of 2421 companies in the Hardware industry, placing it in the top 86.5%.
Is Applied Optoelectronics' PB Ratio too high?
Applied Optoelectronics' current PB Ratio of 8.10 is 440% above median its 10-year median of 1.50. Over the past 10 years, this metric has ranged from a low of 0.20 to a high of 13.58. The Hardware industry median PB Ratio is 2.29. Applied Optoelectronics' value of 8.10 is 253.7% above this industry median. Based on the distribution chart, Applied Optoelectronics ranks #2095 out of 2421 companies in the Hardware industry, which is in the bottom quartile relative to peers. Overall, Applied Optoelectronics has a GF Score™ of 46/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Applied Optoelectronics' PB Ratio compare to VIAV and ZBRA?
According to the Hardware industry distribution chart, Applied Optoelectronics ranks #2095 out of 2421 companies for PB Ratio. This places Applied Optoelectronics in the lower half of its industry. The industry median PB Ratio is 2.29. Applied Optoelectronics' value of 8.10 is 253.7% above this benchmark. Historically, Applied Optoelectronics' own PB Ratio has ranged from 0.20 to 13.58 over the past decade. While the company's 10-year median is 1.50 vs. the industry median of 2.29, Applied Optoelectronics 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 2.29, 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. Applied Optoelectronics's current PB Ratio of 8.10 is 253.7% 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 Applied Optoelectronics and its competitors. For the Hardware industry, the median PB Ratio is 2.29 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Applied Optoelectronics's current PB Ratio is 8.10, which is 440% above median its own 10-year median of 1.50. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Applied Optoelectronics stock overvalued right now?
Based on GuruFocus' analysis, Applied Optoelectronics (FRA:A59) is currently considered Significantly Overvalued. The stock's GF Value™ is €17.78, compared to a current price of €98.17 — trading 452.1% above its estimated fair value. The current PB Ratio is 8.10, which is 440% above median its 10-year median of 1.50 and 253.7% above the Hardware industry median of 2.29. Applied Optoelectronics' overall GF Score™ is 46/100 with 7 warning signs 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 Applied Optoelectronics (FRA:A59), the current PB Ratio is 8.10 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 Applied Optoelectronics (FRA:A59) Overvalued in 2026?

Based on GuruFocus' analysis, Applied Optoelectronics stock appears to be overvalued. The current stock price of €98.17 is trading 452.1% above its estimated GF Value™ of €17.78. GuruFocus considers Applied Optoelectronics to be Significantly Overvalued.

Key valuation signals for FRA:A59:

  • PB Ratio: 8.10 (440% above median its 10-year median of 1.50)
  • GF Value™: €17.78 vs. price of €98.17 (452.1% above fair value)
  • GF Score™: 46/100 with 7 warning signs
  • Industry Position: 253.7% above the Hardware median (#2095 of 2421)

No single metric tells the full story. See the FRA:A59 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Applied Optoelectronics Business Description

Other Exchanges AAOI:USA1AAOI:Italy0HGV:UK
Address 13139 Jess Pirtle Boulevard, Sugar Land, TX, USA, 77478
Applied Optoelectronics Inc is a provider of fiber-optic networking products, for four networking end-markets; internet data center, CATV, telecom, and FTTH. The Company designs and manufactures a wide range of optical communications products at varying levels of integration, from components, subassemblies, and modules to meet turn-key equipment. Through direct sales personnel, and manufacturing teams in the United States, China, and Taiwan, the company coordinates with customers to determine product design, qualifications, and performance. The Company has manufacturing and research and development facilities located in the U.S., Taiwan, and China.
46GF Score

Get the complete analysis for FRA:A59

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

€98.17
Price
€17.78
GF Value