Unique Opto-Electronics Co (ROCO:3441) PB Ratio: 3.71 (As of Jul. 14, 2026) — 108% 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:3441 Unique Opto-Electronics Co Ltd ROCO:3441
66 GF Score
Price NT$74.30
GF Value NT$47.72
Valuation Significantly Overvalued
! 1 Warning Sign
View Full Analysis

What is Unique Opto-Electronics Co PB Ratio?

Unique Opto-Electronics Co ROCO:3441 +9.91% 66 PB Ratio is 3.71 as of Jul. 14, 2026, which is 108% above its 10-year median of 1.78. GuruFocus rates ROCO:3441 with a GF Score™ of 66/100 and a GF Value™ of NT$47.72 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 2,421 Hardware companies, Unique Opto-Electronics Co ranks worse than 67.45% 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), Unique Opto-Electronics Co's share price is NT$74.30. Unique Opto-Electronics Co's Book Value per Share for the quarter that ended in Dec. 2025 was NT$20.00. Hence, Unique Opto-Electronics Co's PB Ratio of today is 3.71.

The historical rank and industry rank for Unique Opto-Electronics Co's PB Ratio or its related term are showing as below:

ROCO:3441' s PB Ratio Range Over the Past 10 Years
Min: 0.55   Med: 1.78   Max: 4.61
Current: 3.72

During the past 13 years, Unique Opto-Electronics Co's highest PB Ratio was 4.61. The lowest was 0.55. And the median was 1.78.

ROCO:3441's PB Ratio is ranked worse than
67.45% of 2421 companies
in the Hardware industry
Industry Median: 2.29 vs ROCO:3441: 3.72

During the past 12 months, Unique Opto-Electronics Co's average Book Value Per Share Growth Rate was -0.50% per year. During the past 3 years, the average Book Value Per Share Growth Rate was 0.80% per year. During the past 5 years, the average Book Value Per Share Growth Rate was 4.10% per year. During the past 10 years, the average Book Value Per Share Growth Rate was -2.70% per year.

During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Unique Opto-Electronics Co was 17.30% per year. The lowest was -9.70% per year. And the median was -0.60% per year.

Back to Basics: PB Ratio


Unique Opto-Electronics Co  (ROCO:3441) 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.


Unique Opto-Electronics Co PB Ratio Related Terms


Unique Opto-Electronics Co PB Ratio Historical Data

* Premium members only.

The historical data trend for Unique Opto-Electronics 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.

Unique Opto-Electronics Co PB Ratio Chart

Unique Opto-Electronics Co 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 2.34 1.99 2.05 1.95 1.88

Unique Opto-Electronics Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
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 1.95 1.73 1.68 1.69 1.88

ROCO:3441 vs APH, GLW: PB Ratio Comparison

For the Electronic Components subindustry, Unique Opto-Electronics 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.


Unique Opto-Electronics Co PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Unique Opto-Electronics Co's PB Ratio distribution charts can be found below:

* The bar in red indicates where Unique Opto-Electronics Co's PB Ratio falls into.


ROCO:3441
66GF Score
Unique Opto-Electronics Co Ltd ROCO:3441
PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Unique Opto-Electronics Co 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.

Unique Opto-Electronics Co's PB Ratio for today is calculated as follows:

PB Ratio=Share Price/Book Value per Share (Q: Dec. 2025)
=74.30/20.002
=3.71

* 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 3.71 mean?
Unique Opto-Electronics Co (ROCO:3441) has a PB Ratio of 3.71 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 Unique Opto-Electronics Co and its competitors. This is 108% above median its historical median of 1.78. Over the past decade, Unique Opto-Electronics Co's PB Ratio has ranged from 0.55 to 4.61. According to the industry distribution chart, Unique Opto-Electronics Co ranks #1633 out of 2421 companies in the Hardware industry, placing it in the top 67.5%.
Is Unique Opto-Electronics Co's PB Ratio too high?
Unique Opto-Electronics Co's current PB Ratio of 3.71 is 108% above median its 10-year median of 1.78. Over the past 10 years, this metric has ranged from a low of 0.55 to a high of 4.61. The Hardware industry median PB Ratio is 2.29. Unique Opto-Electronics Co's value of 3.71 is 62% above this industry median. Based on the distribution chart, Unique Opto-Electronics Co ranks #1633 out of 2421 companies in the Hardware industry, which is below the industry midpoint. Overall, Unique Opto-Electronics Co has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Unique Opto-Electronics Co's PB Ratio compare to APH and GLW?
According to the Hardware industry distribution chart, Unique Opto-Electronics Co ranks #1633 out of 2421 companies for PB Ratio. This places Unique Opto-Electronics Co in the lower half of its industry. The industry median PB Ratio is 2.29. Unique Opto-Electronics Co's value of 3.71 is 62% above this benchmark. Historically, Unique Opto-Electronics Co's own PB Ratio has ranged from 0.55 to 4.61 over the past decade. While the company's 10-year median is 1.78 vs. the industry median of 2.29, Unique Opto-Electronics 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 2.29, 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. Unique Opto-Electronics Co's current PB Ratio of 3.71 is 62% 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 Unique Opto-Electronics Co 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. Unique Opto-Electronics Co's current PB Ratio is 3.71, which is 108% above median its own 10-year median of 1.78. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Unique Opto-Electronics Co stock overvalued right now?
Based on GuruFocus' analysis, Unique Opto-Electronics Co (ROCO:3441) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$47.72, compared to a current price of NT$74.30 — trading 55.7% above its estimated fair value. The current PB Ratio is 3.71, which is 108% above median its 10-year median of 1.78 and 62% above the Hardware industry median of 2.29. Unique Opto-Electronics Co's overall GF Score™ is 66/100 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 Unique Opto-Electronics Co (ROCO:3441), the current PB Ratio is 3.71 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 Unique Opto-Electronics Co (ROCO:3441) Overvalued in 2026?

Based on GuruFocus' analysis, Unique Opto-Electronics Co stock appears to be overvalued. The current stock price of NT$74.30 is trading 55.7% above its estimated GF Value™ of NT$47.72. GuruFocus considers Unique Opto-Electronics Co to be Significantly Overvalued.

Key valuation signals for ROCO:3441:

  • PB Ratio: 3.71 (108% above median its 10-year median of 1.78)
  • GF Value™: NT$47.72 vs. price of NT$74.30 (55.7% above fair value)
  • GF Score™: 66/100 with 1 warning sign
  • Industry Position: 62% above the Hardware median (#1633 of 2421)

No single metric tells the full story. See the ROCO:3441 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Unique Opto-Electronics Co Business Description

Address No. 6-4 Daoxiang Road, Caotun Town, Nantou, TWN
Unique Opto-Electronics Co Ltd is engaged in the manufacture, processing, and trading of various optical glass, optical lenses, lens blanks, and bristles. The company's products are used in cameras, camcorders, binoculars, and monitors.
66GF Score

Get the complete analysis for ROCO:3441

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

NT$74.30
Price
NT$47.72
GF Value