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GCS HoldingsROCO:4991 +9.91%62 PB Ratio is 10.85 as of Jul. 22, 2026, which is 596% above its 10-year median of 1.56. GuruFocus rates ROCO:4991 with a GF Score™ of 62/100 and a GF Value™ of NT$111.20 (Significantly Overvalued). Among 998 Semiconductors companies, GCS Holdings ranks worse than 91.08% 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 (2026-07-22), GCS Holdings's share price is NT$382.50. GCS Holdings's Book Value per Share for the quarter that ended in Mar. 2026 was NT$35.26. Hence, GCS Holdings's PB Ratio of today is 10.85.
The historical rank and industry rank for GCS Holdings's PB Ratio or its related term are showing as below:
ROCO:4991'
s PB Ratio Range Over the Past 10 Years
Min: 0.84 Med: 1.56 Max: 23.09
Current: 10.85
During the past 13 years, GCS Holdings's highest PB Ratio was 23.09. The lowest was 0.84. And the median was 1.56.
ROCO:4991's PB Ratio is ranked worse than 91.08% of 998
companies
in the Semiconductors industry
Industry Median: 3.24
vs ROCO:4991: 10.85
During the past 12 months, GCS Holdings's average Book Value Per Share Growth Rate was 32.60% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -5.10% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -8.40% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of GCS Holdings was 29.50% per year. The lowest was -12.90% per year. And the median was 8.95% 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.
GCS Holdings PB Ratio Related Terms
GCS Holdings PB Ratio Historical Data
* Premium members only.
The historical data trend for GCS Holdings'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.
ROCO:4991 vs AMAT, LRCX, KLAC: PB Ratio Comparison
For the Semiconductor Equipment & Materials subindustry, GCS Holdings'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.
GCS Holdings PB Ratio vs Semiconductors Industry
For the Semiconductors industry and Technology sector, GCS Holdings's PB Ratio distribution charts can be found below:
* The bar in red indicates where GCS Holdings'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.
GCS Holdings'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.
GCS Holdings (ROCO:4991) has a PB Ratio of 10.85 as of Jul. 22, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on GCS Holdings and its competitors. This is 596% above median its historical median of 1.56. Over the past decade, GCS Holdings' PB Ratio has ranged from 0.84 to 23.09. According to the industry distribution chart, GCS Holdings ranks #909 out of 998 companies in the Semiconductors industry, placing it in the top 91.1%.
Is GCS Holdings' PB Ratio too high?
GCS Holdings' current PB Ratio of 10.85 is 596% above median its 10-year median of 1.56. Over the past 10 years, this metric has ranged from a low of 0.84 to a high of 23.09. The Semiconductors industry median PB Ratio is 3.24. GCS Holdings' value of 10.85 is 234.9% above this industry median. Based on the distribution chart, GCS Holdings ranks #909 out of 998 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, GCS Holdings has a GF Score™ of 62/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does GCS Holdings' PB Ratio compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, GCS Holdings ranks #909 out of 998 companies for PB Ratio. This places GCS Holdings in the lower half of its industry. The industry median PB Ratio is 3.24. GCS Holdings' value of 10.85 is 234.9% above this benchmark. Historically, GCS Holdings' own PB Ratio has ranged from 0.84 to 23.09 over the past decade. While the company's 10-year median is 1.56 vs. the industry median of 3.24, GCS Holdings 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 3.24, 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. GCS Holdings's current PB Ratio of 10.85 is 234.9% 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 GCS Holdings and its competitors. For the Semiconductors industry, the median PB Ratio is 3.24 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. GCS Holdings's current PB Ratio is 10.85, which is 596% above median its own 10-year median of 1.56. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is GCS Holdings stock overvalued right now?
Based on GuruFocus' analysis, GCS Holdings (ROCO:4991) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$111.20, compared to a current price of NT$382.50 — trading 244% above its estimated fair value. The current PB Ratio is 10.85, which is 596% above median its 10-year median of 1.56 and 234.9% above the Semiconductors industry median of 3.24. GCS Holdings' overall GF Score™ is 62/100. 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 GCS Holdings (ROCO:4991), the current PB Ratio is 10.85 as of Jul. 22, 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 GCS Holdings (ROCO:4991) Overvalued in 2026?
Based on GuruFocus' analysis, GCS Holdings stock appears to be overvalued.
The current stock price of NT$382.50 is trading 244% above its estimated GF Value™ of NT$111.20.
GuruFocus considers GCS Holdings to be Significantly Overvalued.
Key valuation signals for ROCO:4991:
PB Ratio: 10.85 (596% above median its 10-year median of 1.56)
GF Value™: NT$111.20 vs. price of NT$382.50 (244% above fair value)
Industry Position: 234.9% above the Semiconductors median (#909 of 998)
No single metric tells the full story. See the ROCO:4991 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
GCS Holdings Inc through its subsidiaries, is engaged in the manufacturing of compound semiconductor wafers and foundry-related services as well as the licensing of intellectual property. It is also engaged in the research, development, manufacture, and sales of optoelectronics technology products. Its portfolio offerings include Radio Frequency Integrated Circuits (RFIC) and millimeter-wave integrated circuits for the wireless markets, power devices for power electronics, and Photodetectors and Lasers for the optical communications market. Geographically, the company generates a majority of its revenue from China and the rest from the United States, Taiwan, and other markets.
62GF Score
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