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GCS Holdings, Inc.TPEX:4991 Stock Report

Market Cap NT$65.2b
Share Price
NT$539.00
NT$682.33
21.0% undervalued intrinsic discount
1Y553.3%
7D-26.3%
1D
Portfolio Value
View

GCS Holdings, Inc.

TPEX:4991 Stock Report

Market Cap: NT$65.2b

GCS Holdings (4991) Stock Overview

Manufactures and sells compound semiconductor wafer and foundry related services in China, the United States, Taiwan, and internationally. More details

4991 fundamental analysis
Snowflake Score
Valuation0/6
Future Growth5/6
Past Performance3/6
Financial Health5/6
Dividends0/6

4991 Community Fair Values

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GCS Holdings, Inc. Competitors

Price History & Performance

Summary of share price highs, lows and changes for GCS Holdings
Historical stock prices
Current Share PriceNT$539.00
52 Week HighNT$895.00
52 Week LowNT$75.00
Beta0.92
1 Month Change-21.43%
3 Month Change64.83%
1 Year Change553.33%
3 Year Change1,678.88%
5 Year Change1,099.11%
Change since IPO2,417.31%

Recent News & Updates

Recent updates

Analysis Article Apr 08

Is Now An Opportune Moment To Examine GCS Holdings, Inc. (GTSM:4991)?

GCS Holdings, Inc. ( GTSM:4991 ), is not the largest company out there, but it saw a decent share price growth in the...
Analysis Article Mar 16

Are GCS Holdings, Inc.'s (GTSM:4991) Mixed Financials Driving The Negative Sentiment?

GCS Holdings (GTSM:4991) has had a rough month with its share price down 4.5%. We, however decided to study the...
Analysis Article Mar 01

Would Shareholders Who Purchased GCS Holdings' (GTSM:4991) Stock Three Years Be Happy With The Share price Today?

Many investors define successful investing as beating the market average over the long term. But if you try your hand...
Analysis Article Feb 12

A Look At The Fair Value Of GCS Holdings, Inc. (GTSM:4991)

Today we will run through one way of estimating the intrinsic value of GCS Holdings, Inc. ( GTSM:4991 ) by taking the...
Analysis Article Jan 28

Is GCS Holdings (GTSM:4991) A Risky Investment?

Legendary fund manager Li Lu (who Charlie Munger backed) once said, 'The biggest investment risk is not the volatility...
Analysis Article Jan 13

Should You Be Impressed By GCS Holdings' (GTSM:4991) Returns on Capital?

What trends should we look for it we want to identify stocks that can multiply in value over the long term? In a...
Analysis Article Dec 29

Should You Think About Buying GCS Holdings, Inc. (GTSM:4991) Now?

While GCS Holdings, Inc. ( GTSM:4991 ) might not be the most widely known stock at the moment, it received a lot of...
Analysis Article Dec 14

GCS Holdings, Inc.'s (GTSM:4991) Financials Are Too Obscure To Link With Current Share Price Momentum: What's In Store For the Stock?

Most readers would already be aware that GCS Holdings' (GTSM:4991) stock increased significantly by 5.9% over the past...
Analysis Article Nov 29

GCS Holdings' (GTSM:4991) Stock Price Has Reduced 38% In The Past Three Years

For many investors, the main point of stock picking is to generate higher returns than the overall market. But if you...

Shareholder Returns

4991TW SemiconductorTW Market
7D-26.3%-3.8%-2.0%
1Y553.3%138.2%99.7%

Return vs Industry: 4991 exceeded the TW Semiconductor industry which returned 138.2% over the past year.

Return vs Market: 4991 exceeded the TW Market which returned 99.7% over the past year.

Price Volatility

Is 4991's price volatile compared to industry and market?
4991 volatility
4991 Average Weekly Movement14.8%
Semiconductor Industry Average Movement9.6%
Market Average Movement6.3%
10% most volatile stocks in TW Market12.1%
10% least volatile stocks in TW Market2.6%

Stable Share Price: 4991's share price has been volatile over the past 3 months compared to the TW market.

Volatility Over Time: 4991's weekly volatility (15%) has been stable over the past year, but is still higher than 75% of TW stocks.

About the Company

FoundedEmployeesCEOWebsite
1997n/aBrian Annwww.gcsincorp.com

GCS Holdings, Inc., together with its subsidiaries, manufactures and sells compound semiconductor wafer and foundry related services in China, the United States, Taiwan, and internationally. It also researches, develops, manufactures, and sells optoelectronics technology products and optical chips, as well as grants royalty rights for intellectual property. The company engages in the wholesaling and retailing of electronic components; provision of product design, research development, and outsourcing management services; manufacturing and selling of semiconductor discrete devices, as well as photodiodes and avalanche photo diodes for telecommunication systems and data communication networks; and manufacturing, wholesaling, and retailing of telecommunication devices.

GCS Holdings, Inc. Fundamentals Summary

How do GCS Holdings's earnings and revenue compare to its market cap?
4991 fundamental statistics
Market capNT$65.19b
Earnings (TTM)NT$292.55m
Revenue (TTM)NT$2.44b
222.8x
P/E Ratio
26.8x
P/S Ratio

Earnings & Revenue

Key profitability statistics from the latest earnings report (TTM)
4991 income statement (TTM)
RevenueNT$2.44b
Cost of RevenueNT$1.18b
Gross ProfitNT$1.25b
Other ExpensesNT$960.07m
EarningsNT$292.55m

Last Reported Earnings

Mar 31, 2026

Next Earnings Date

n/a

Earnings per share (EPS)2.42
Gross Margin51.41%
Net Profit Margin12.01%
Debt/Equity Ratio5.7%

How did 4991 perform over the long term?

See historical performance and comparison

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/06/10 23:18
End of Day Share Price 2026/06/10 00:00
Earnings2026/03/31
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

GCS Holdings, Inc. is covered by 4 analysts. 3 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Yiho LiuCapital Securities Corporation
Zhilong YenMasterlink Securities Investment Advisory
Kuan-Chieh LiaoSinoPac Securities Investment Service