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.
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.
Optoelectronics CoTSE:6664 -1.21%40 PB Ratio is 0.48 as of Jul. 14, 2026, which is 6% below its 10-year median of 0.51. GuruFocus rates TSE:6664 with a GF Score™ of 40/100 and a GF Value™ of 円215.81 (Modestly Overvalued). The stock has 5 warning signs investors should review. Among 2,421 Hardware companies, Optoelectronics Co ranks better than 97.15% on this metric.
Optoelectronics Co Ltd stock PB Ratio (=0.48) is close to 3-year high of 0.48.
The historical rank and industry rank for Optoelectronics Co's PB Ratio or its related term are showing as below:
TSE:6664'
s PB Ratio Range Over the Past 10 Years
Min: 0.26 Med: 0.51 Max: 1.54
Current: 0.48
During the past 13 years, Optoelectronics Co's highest PB Ratio was 1.54. The lowest was 0.26. And the median was 0.51.
TSE:6664's PB Ratio is ranked better than 97.15% of 2421
companies
in the Hardware industry
Industry Median: 2.29
vs TSE:6664: 0.48
During the past 12 months, Optoelectronics Co's average Book Value Per Share Growth Rate was -37.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -4.20% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 2.30% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was -1.20% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Optoelectronics Co was 16.60% per year. The lowest was -15.60% per year. And the median was -1.00% per year.
Back to Basics: PB Ratio
Optoelectronics Co (TSE:6664) PB Ratio Explanation
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.
Optoelectronics Co PB Ratio Related Terms
Optoelectronics Co PB Ratio Historical Data
* Premium members only.
The historical data trend for Optoelectronics 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 Scientific & Technical Instruments subindustry, Optoelectronics 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.
Optoelectronics Co PB Ratio vs Hardware Industry
For the Hardware industry and Technology sector, Optoelectronics Co's PB Ratio distribution charts can be found below:
* The bar in red indicates where Optoelectronics 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.
* 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.
Optoelectronics Co (TSE:6664) has a PB Ratio of 0.48 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 Optoelectronics Co and its competitors. This is near median its historical median of 0.51. Over the past decade, Optoelectronics Co's PB Ratio has ranged from 0.26 to 1.54. According to the industry distribution chart, Optoelectronics Co ranks #69 out of 2421 companies in the Hardware industry, placing it in the top 2.9%.
Is Optoelectronics Co's PB Ratio too high?
Optoelectronics Co's current PB Ratio of 0.48 is near median its 10-year median of 0.51. Over the past 10 years, this metric has ranged from a low of 0.26 to a high of 1.54. The Hardware industry median PB Ratio is 2.29. Optoelectronics Co's value of 0.48 is 79% below this industry median. Based on the distribution chart, Optoelectronics Co ranks #69 out of 2421 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. Overall, Optoelectronics Co has a GF Score™ of 40/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Optoelectronics Co's PB Ratio compare to COHR and KEYS?
According to the Hardware industry distribution chart, Optoelectronics Co ranks #69 out of 2421 companies for PB Ratio. This places Optoelectronics Co in the top 3% of its industry — outperforming the majority of peers. The industry median PB Ratio is 2.29. Optoelectronics Co's value of 0.48 is 79% below this benchmark. Historically, Optoelectronics Co's own PB Ratio has ranged from 0.26 to 1.54 over the past decade. While the company's 10-year median is 0.51 vs. the industry median of 2.29, Optoelectronics Co has consistently been below 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. Optoelectronics Co's current PB Ratio of 0.48 is 79% below 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 Optoelectronics 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. Optoelectronics Co's current PB Ratio is 0.48, which is near median its own 10-year median of 0.51. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Optoelectronics Co stock overvalued right now?
Based on GuruFocus' analysis, Optoelectronics Co (TSE:6664) is currently considered Modestly Overvalued. The stock's GF Value™ is 円215.81, compared to a current price of 円245.00 — trading 13.5% above its estimated fair value. The current PB Ratio is 0.48, which is near median its 10-year median of 0.51 and 79% below the Hardware industry median of 2.29. Optoelectronics Co's overall GF Score™ is 40/100 with 5 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 Optoelectronics Co (TSE:6664), the current PB Ratio is 0.48 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 Optoelectronics Co (TSE:6664) Overvalued in 2026?
Based on GuruFocus' analysis, Optoelectronics Co stock appears to be overvalued.
The current stock price of 円245.00 is trading 13.5% above its estimated GF Value™ of 円215.81.
GuruFocus considers Optoelectronics Co to be Modestly Overvalued.
Key valuation signals for TSE:6664:
PB Ratio: 0.48 (near median its 10-year median of 0.51)
GF Value™: 円215.81 vs. price of 円245.00 (13.5% above fair value)
Industry Position: 79% below the Hardware median (#69 of 2421)
No single metric tells the full story. See the TSE:6664 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Optoelectronics Co Ltd is engaged in developing, manufacturing, and selling automatic recognition devices in Japan, the United States, and Europe. The company offers modules, handy scanners, data collectors, handy terminals, smartphone handy terminals, desktop and stationary scanners, and electronic shelf label systems, as well as laser/CCD type barcode and imager scanners.
40GF Score
Get the complete analysis for TSE:6664
PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TSE:6664 has been successfully added to your 
