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Igiant Optics CoROCO:6915 -12.00%44 PB Ratio is 4.48 as of Jul. 18, 2026, which is 70% above its 10-year median of 2.63. GuruFocus rates ROCO:6915 with a GF Score™ of 44/100 and a GF Value™ of NT$15.55 (Significantly Overvalued). The stock has 3 warning signs investors should review. Among 998 Semiconductors companies, Igiant Optics Co ranks worse than 66.83% 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 (2026-07-18), Igiant Optics Co's share price is NT$44.00. Igiant Optics Co's Book Value per Share for the quarter that ended in Dec. 2025 was NT$9.82. Hence, Igiant Optics Co's PB Ratio of today is 4.48.
The historical rank and industry rank for Igiant Optics Co's PB Ratio or its related term are showing as below:
ROCO:6915'
s PB Ratio Range Over the Past 10 Years
Min: 1.63 Med: 2.63 Max: 7.66
Current: 4.49
During the past 8 years, Igiant Optics Co's highest PB Ratio was 7.66. The lowest was 1.63. And the median was 2.63.
ROCO:6915's PB Ratio is ranked worse than 66.83% of 998
companies
in the Semiconductors industry
Industry Median: 3.295
vs ROCO:6915: 4.49
During the past 12 months, Igiant Optics Co's average Book Value Per Share Growth Rate was -4.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -8.20% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 10.50% per year.
During the past 8 years, the highest 3-Year average Book Value Per Share Growth Rate of Igiant Optics Co was 26.80% per year. The lowest was -8.20% per year. And the median was 0.60% 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.
Igiant Optics Co PB Ratio Related Terms
Igiant Optics Co PB Ratio Historical Data
* Premium members only.
The historical data trend for Igiant Optics 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 Semiconductors subindustry, Igiant Optics 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.
Igiant Optics Co PB Ratio vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Igiant Optics Co's PB Ratio distribution charts can be found below:
* The bar in red indicates where Igiant Optics 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.
Igiant Optics Co (ROCO:6915) has a PB Ratio of 4.48 as of Jul. 18, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Igiant Optics Co and its competitors. This is 70% above median its historical median of 2.63. Over the past decade, Igiant Optics Co's PB Ratio has ranged from 1.63 to 7.66. According to the industry distribution chart, Igiant Optics Co ranks #667 out of 998 companies in the Semiconductors industry, placing it in the top 66.8%.
Is Igiant Optics Co's PB Ratio too high?
Igiant Optics Co's current PB Ratio of 4.48 is 70% above median its 10-year median of 2.63. Over the past 10 years, this metric has ranged from a low of 1.63 to a high of 7.66. The Semiconductors industry median PB Ratio is 3.30. Igiant Optics Co's value of 4.48 is 36% above this industry median. Based on the distribution chart, Igiant Optics Co ranks #667 out of 998 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Igiant Optics Co has a GF Score™ of 44/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Igiant Optics Co's PB Ratio compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Igiant Optics Co ranks #667 out of 998 companies for PB Ratio. This places Igiant Optics Co in the lower half of its industry. The industry median PB Ratio is 3.30. Igiant Optics Co's value of 4.48 is 36% above this benchmark. Historically, Igiant Optics Co's own PB Ratio has ranged from 1.63 to 7.66 over the past decade. While the company's 10-year median is 2.63 vs. the industry median of 3.30, Igiant Optics 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 Semiconductors company?
The median PB Ratio among Semiconductors companies is 3.30, based on 998 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. Igiant Optics Co's current PB Ratio of 4.48 is 36% 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 Igiant Optics Co and its competitors. For the Semiconductors industry, the median PB Ratio is 3.30 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Igiant Optics Co's current PB Ratio is 4.48, which is 70% above median its own 10-year median of 2.63. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Igiant Optics Co stock overvalued right now?
Based on GuruFocus' analysis, Igiant Optics Co (ROCO:6915) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$15.55, compared to a current price of NT$44.00 — trading 183% above its estimated fair value. The current PB Ratio is 4.48, which is 70% above median its 10-year median of 2.63 and 36% above the Semiconductors industry median of 3.30. Igiant Optics Co's overall GF Score™ is 44/100 with 3 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 Igiant Optics Co (ROCO:6915), the current PB Ratio is 4.48 as of Jul. 18, 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 Igiant Optics Co (ROCO:6915) Overvalued in 2026?
Based on GuruFocus' analysis, Igiant Optics Co stock appears to be overvalued.
The current stock price of NT$44.00 is trading 183% above its estimated GF Value™ of NT$15.55.
GuruFocus considers Igiant Optics Co to be Significantly Overvalued.
Key valuation signals for ROCO:6915:
PB Ratio: 4.48 (70% above median its 10-year median of 2.63)
GF Value™: NT$15.55 vs. price of NT$44.00 (183% above fair value)
Industry Position: 36% above the Semiconductors median (#667 of 998)
No single metric tells the full story. See the ROCO:6915 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Igiant Optics Co Ltd is an optical design and manufacturing company. It offers precision micro molding on parts, Dual shot molding & insert molding, Micro molding on composites, LDS (Laser Direct Structuring), LF, LSR (Liquid Silicone Rubber), and Optical solution. Its service offerings comprise optical design, tool fabrication, precision injection, automation to full-scale inspection.
44GF Score
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