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Zilltek TechnologyROCO:6679 -6.46%81 PB Ratio is 1.81 as of Jul. 29, 2026, which is 59% below its 10-year median of 4.40. GuruFocus rates ROCO:6679 with a GF Score™ of 81/100 and a GF Value™ of NT$319.88 (Possible Value Trap). The stock has 4 warning signs investors should review. Among 999 Semiconductors companies, Zilltek Technology ranks better than 63.86% on this metric.
Zilltek Technology Corp stock PB Ratio (=1.93) is close to 10-year low of 1.76.
The historical rank and industry rank for Zilltek Technology's PB Ratio or its related term are showing as below:
ROCO:6679'
s PB Ratio Range Over the Past 10 Years
Min: 1.76 Med: 4.4 Max: 11.92
Current: 1.81
During the past 11 years, Zilltek Technology's highest PB Ratio was 11.92. The lowest was 1.76. And the median was 4.40.
ROCO:6679's PB Ratio is ranked better than 63.86% of 999
companies
in the Semiconductors industry
Industry Median: 2.99
vs ROCO:6679: 1.81
During the past 12 months, Zilltek Technology's average Book Value Per Share Growth Rate was 20.80% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 2.90% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 26.70% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 35.20% per year.
During the past 11 years, the highest 3-Year average Book Value Per Share Growth Rate of Zilltek Technology was 51.20% per year. The lowest was 2.90% per year. And the median was 38.25% per year.
Back to Basics: PB Ratio
Zilltek Technology (ROCO:6679) 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.
Zilltek Technology PB Ratio Related Terms
Zilltek Technology PB Ratio Historical Data
* Premium members only.
The historical data trend for Zilltek Technology'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 Semiconductors subindustry, Zilltek Technology'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.
Zilltek Technology PB Ratio vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Zilltek Technology's PB Ratio distribution charts can be found below:
* The bar in red indicates where Zilltek Technology'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.
Zilltek Technology (ROCO:6679) has a PB Ratio of 1.81 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 Zilltek Technology and its competitors. This is 59% below median its historical median of 4.40. Over the past decade, Zilltek Technology's PB Ratio has ranged from 1.76 to 11.92. According to the industry distribution chart, Zilltek Technology ranks #361 out of 999 companies in the Semiconductors industry, placing it in the top 36.1%.
Is Zilltek Technology's PB Ratio too high?
Zilltek Technology's current PB Ratio of 1.81 is 59% below median its 10-year median of 4.40. Over the past 10 years, this metric has ranged from a low of 1.76 to a high of 11.92. The Semiconductors industry median PB Ratio is 2.99. Zilltek Technology's value of 1.81 is 39.5% below this industry median. Based on the distribution chart, Zilltek Technology ranks #361 out of 999 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Zilltek Technology has a GF Score™ of 81/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Zilltek Technology's PB Ratio compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Zilltek Technology ranks #361 out of 999 companies for PB Ratio. This puts Zilltek Technology in the upper half of its industry. The industry median PB Ratio is 2.99. Zilltek Technology's value of 1.81 is 39.5% below this benchmark. Historically, Zilltek Technology's own PB Ratio has ranged from 1.76 to 11.92 over the past decade. While the company's 10-year median is 4.40 vs. the industry median of 2.99, Zilltek Technology 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 Semiconductors company?
The median PB Ratio among Semiconductors companies is 2.99, based on 999 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. Zilltek Technology's current PB Ratio of 1.81 is 39.5% 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 Zilltek Technology and its competitors. For the Semiconductors industry, the median PB Ratio is 2.99 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Zilltek Technology's current PB Ratio is 1.81, which is 59% below median its own 10-year median of 4.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Zilltek Technology stock overvalued right now?
Based on GuruFocus' analysis, Zilltek Technology (ROCO:6679) is currently considered Possible Value Trap. The stock's GF Value™ is NT$319.88, compared to a current price of NT$195.50 — trading 38.9% below its estimated fair value. The current PB Ratio is 1.81, which is 59% below median its 10-year median of 4.40 and 39.5% below the Semiconductors industry median of 2.99. Zilltek Technology's overall GF Score™ is 81/100 with 4 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 Zilltek Technology (ROCO:6679), the current PB Ratio is 1.81 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 Zilltek Technology (ROCO:6679) Overvalued in 2026?
Based on GuruFocus' analysis, Zilltek Technology stock appears to be undervalued.
The current stock price of NT$195.50 is trading 38.9% below its estimated GF Value™ of NT$319.88.
GuruFocus considers Zilltek Technology to be Possible Value Trap.
Key valuation signals for ROCO:6679:
PB Ratio: 1.81 (59% below median its 10-year median of 4.40)
GF Value™: NT$319.88 vs. price of NT$195.50 (38.9% below fair value)
Industry Position: 39.5% below the Semiconductors median (#361 of 999)
No single metric tells the full story. See the ROCO:6679 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Zilltek Technology Corp engaged in the manufacturing of electronic components, buying/selling services, research and development, manufacturing, and sales of sensor and application chipsets. Company focuses on developing compact, energy-saving, and high-performance MEMS technologies to meet a variety of acoustic applications, including but not limited to laptops, TVs, tablets, smartphones, smart watches, smart speakers, drones, hearing aids, IoT devices, TWS headphones, sports equipment, and mobile infotainment systems. It operates in Taiwan, China and Other countries. Majority of revenue is from Taiwan.
81GF Score
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