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Ledlink OpticsROCO:5230 -2.30%67 PB Ratio is 0.73 as of Jul. 29, 2026, which is 30% below its 10-year median of 1.05. GuruFocus rates ROCO:5230 with a GF Score™ of 67/100 and a GF Value™ of NT$20.28 (Modestly Undervalued). The stock has 8 warning signs investors should review. Among 2,419 Hardware companies, Ledlink Optics ranks better than 84.13% 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 (2026-07-29), Ledlink Optics's share price is NT$17.00. Ledlink Optics's Book Value per Share for the quarter that ended in Dec. 2025 was NT$23.14. Hence, Ledlink Optics's PB Ratio of today is 0.73.
The historical rank and industry rank for Ledlink Optics's PB Ratio or its related term are showing as below:
ROCO:5230'
s PB Ratio Range Over the Past 10 Years
Min: 0.69 Med: 1.05 Max: 2.27
Current: 0.74
During the past 13 years, Ledlink Optics's highest PB Ratio was 2.27. The lowest was 0.69. And the median was 1.05.
ROCO:5230's PB Ratio is ranked better than 84.13% of 2419
companies
in the Hardware industry
Industry Median: 2.16
vs ROCO:5230: 0.74
During the past 12 months, Ledlink Optics's average Book Value Per Share Growth Rate was -7.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -1.90% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -0.80% 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 Ledlink Optics was 31.60% per year. The lowest was -3.00% per year. And the median was 0.10% 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.
Ledlink Optics PB Ratio Related Terms
Ledlink Optics PB Ratio Historical Data
* Premium members only.
The historical data trend for Ledlink Optics'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, Ledlink Optics'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.
Ledlink Optics PB Ratio vs Hardware Industry
For the Hardware industry and Technology sector, Ledlink Optics's PB Ratio distribution charts can be found below:
* The bar in red indicates where Ledlink Optics'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.
Ledlink Optics'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.
Ledlink Optics (ROCO:5230) has a PB Ratio of 0.73 as of Jul. 29, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Ledlink Optics and its competitors. This is 30% below median its historical median of 1.05. Over the past decade, Ledlink Optics' PB Ratio has ranged from 0.69 to 2.27. According to the industry distribution chart, Ledlink Optics ranks #384 out of 2419 companies in the Hardware industry, placing it in the top 15.9%.
Is Ledlink Optics' PB Ratio too high?
Ledlink Optics' current PB Ratio of 0.73 is 30% below median its 10-year median of 1.05. Over the past 10 years, this metric has ranged from a low of 0.69 to a high of 2.27. The Hardware industry median PB Ratio is 2.16. Ledlink Optics' value of 0.73 is 66.2% below this industry median. Based on the distribution chart, Ledlink Optics ranks #384 out of 2419 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. Overall, Ledlink Optics has a GF Score™ of 67/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Ledlink Optics' PB Ratio compare to APH and GLW?
According to the Hardware industry distribution chart, Ledlink Optics ranks #384 out of 2419 companies for PB Ratio. This places Ledlink Optics in the top 16% of its industry — outperforming the majority of peers. The industry median PB Ratio is 2.16. Ledlink Optics' value of 0.73 is 66.2% below this benchmark. Historically, Ledlink Optics' own PB Ratio has ranged from 0.69 to 2.27 over the past decade. While the company's 10-year median is 1.05 vs. the industry median of 2.16, Ledlink Optics 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 2.16, based on 2,419 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. Ledlink Optics's current PB Ratio of 0.73 is 66.2% 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 Ledlink Optics and its competitors. For the Hardware industry, the median PB Ratio is 2.16 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ledlink Optics's current PB Ratio is 0.73, which is 30% below median its own 10-year median of 1.05. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ledlink Optics stock overvalued right now?
Based on GuruFocus' analysis, Ledlink Optics (ROCO:5230) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$20.28, compared to a current price of NT$17.00 — trading 16.2% below its estimated fair value. The current PB Ratio is 0.73, which is 30% below median its 10-year median of 1.05 and 66.2% below the Hardware industry median of 2.16. Ledlink Optics' overall GF Score™ is 67/100 with 8 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 Ledlink Optics (ROCO:5230), the current PB Ratio is 0.73 as of Jul. 29, 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 Ledlink Optics (ROCO:5230) Overvalued in 2026?
Based on GuruFocus' analysis, Ledlink Optics stock appears to be undervalued.
The current stock price of NT$17.00 is trading 16.2% below its estimated GF Value™ of NT$20.28.
GuruFocus considers Ledlink Optics to be Modestly Undervalued.
Key valuation signals for ROCO:5230:
PB Ratio: 0.73 (30% below median its 10-year median of 1.05)
GF Value™: NT$20.28 vs. price of NT$17.00 (16.2% below fair value)
Industry Position: 66.2% below the Hardware median (#384 of 2419)
No single metric tells the full story. See the ROCO:5230 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ledlink Optics Inc is engaged in designing and manufacturing optics for emerging solid-state lighting companies such as Cree, Edison, Nichia, Osram, Lumileds, Samsung, Seoul, and other LED manufacturers. It offers lenses in a variety of packages with numerous beam pattern options and sizes, such as residential lighting, commercial lighting, street lighting, and architectural lighting.
67GF Score
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