GCS Holdings (ROCO:4991) Common Stock: NT$1,209 Mil (As of Mar. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

ROCO:4991 GCS Holdings Inc ROCO:4991
61 GF Score
Price NT$353.00
GF Value NT$112.29
Valuation Significantly Overvalued
View Full Analysis

What is GCS Holdings Common Stock?

GCS Holdings ROCO:4991 +9.97% 61 Common Stock is NT$1,209 Mil as of Mar. 2026. GuruFocus rates ROCO:4991 with a GF Score™ of 61/100 and a GF Value™ of NT$112.29 (Significantly Overvalued).

GCS Holdings's quarterly common stock increased from Sep. 2025 (NT$1,138 Mil) to Dec. 2025 (NT$1,139 Mil) and increased from Dec. 2025 (NT$1,139 Mil) to Mar. 2026 (NT$1,209 Mil).

GCS Holdings's annual common stock increased from Dec. 2023 (NT$1,113 Mil) to Dec. 2024 (NT$1,123 Mil) and increased from Dec. 2024 (NT$1,123 Mil) to Dec. 2025 (NT$1,139 Mil).

GCS Holdings Common Stock Historical Data

* Premium members only.

The historical data trend for GCS Holdings's Common Stock 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.

GCS Holdings Common Stock Chart

GCS Holdings Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Common Stock
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1,106.76 1,108.25 1,112.83 1,123.38 1,138.59

GCS Holdings Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Common Stock Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 1,135.79 1,136.02 1,138.18 1,138.59 1,209.43
ROCO:4991
61GF Score
GCS Holdings Inc ROCO:4991
Common Stock is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

GCS Holdings Common Stock Calculation

Common stock is listed on the Balance Sheet at the par value of the total shares outstanding of a company.

The par value of common stocks is meaningless. It is usually set at an absurdly low number.

Frequently Asked Questions Learn more about Common Stock →
What does a Common Stock of NT$1,209 Mil mean?
GCS Holdings (ROCO:4991) has a Common Stock of NT$1,209 Mil as of Mar. 2026. Common Stock is the par value of a company's shares outstanding, as listed on the balance sheet. View historical data on GCS Holdings and its competitors.
Is GCS Holdings' Common Stock too high?
GCS Holdings' current Common Stock is NT$1,209 Mil. Overall, GCS Holdings has a GF Score™ of 61/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does GCS Holdings' Common Stock compare to AMAT and LRCX?
GCS Holdings' Common Stock of NT$1,209 Mil can be compared against companies in the Semiconductors industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Common Stock for a Semiconductors company?
A good Common Stock depends on the Semiconductors industry context. However, Common Stock should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Common Stock mean?
A high Common Stock can signal that a stock is expensive relative to its fundamentals. Common Stock is the par value of a company's shares outstanding, as listed on the balance sheet. View historical data on GCS Holdings and its competitors. GCS Holdings's current Common Stock is NT$1,209 Mil. 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$112.29, compared to a current price of NT$353.00 — trading 214.4% above its estimated fair value. The current Common Stock is NT$1,209 Mil. GCS Holdings' overall GF Score™ is 61/100. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Common Stock calculated?
Common Stock is calculated from a company's financial statements. For GCS Holdings (ROCO:4991), the current Common Stock is NT$1,209 Mil as of Mar. 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$353.00 is trading 214.4% above its estimated GF Value™ of NT$112.29. GuruFocus considers GCS Holdings to be Significantly Overvalued.

Key valuation signals for ROCO:4991:

  • Common Stock: NT$1,209 Mil
  • GF Value™: NT$112.29 vs. price of NT$353.00 (214.4% above fair value)
  • GF Score™: 61/100

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 Business Description

Address 23155 Kashiwa Court, Torrance, CA, USA, 90505
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.
61GF Score

Get the complete analysis for ROCO:4991

Common Stock is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$353.00
Price
NT$112.29
GF Value