GCS Holdings (ROCO:4991) Cyclically Adjusted Book per Share: NT$39.14 (As of Mar. 2026)

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ROCO:4991 GCS Holdings Inc ROCO:4991
62 GF Score
Price NT$382.50
GF Value NT$111.20
Valuation Significantly Overvalued
View Full Analysis

What is GCS Holdings Cyclically Adjusted Book per Share?

GCS Holdings ROCO:4991 +9.91% 62 Cyclically Adjusted Book per Share is NT$39.14 as of Mar. 2026. GuruFocus rates ROCO:4991 with a GF Score™ of 62/100 and a GF Value™ of NT$111.20 (Significantly Overvalued).

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

GCS Holdings's adjusted book value per share for the three months ended in Mar. 2026 was NT$35.255. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is NT$39.14 for the trailing ten years ended in Mar. 2026.

During the past 12 months, GCS Holdings's average Cyclically Adjusted Book Growth Rate was -100.00% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 3.50% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of GCS Holdings was 7.00% per year. The lowest was 3.50% per year. And the median was 5.25% per year.

As of today (2026-07-22), GCS Holdings's current stock price is NT$382.50. GCS Holdings's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was NT$39.14. GCS Holdings's Cyclically Adjusted PB Ratio of today is 9.77.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of GCS Holdings was 11.63. The lowest was 0.78. And the median was 1.20.


GCS Holdings  (ROCO:4991) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

GCS Holdings's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=382.50/39.14
=9.77

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of GCS Holdings was 11.63. The lowest was 0.78. And the median was 1.20.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


GCS Holdings Cyclically Adjusted Book per Share Related Terms


GCS Holdings Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for GCS Holdings's Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share Chart

GCS Holdings Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 30.62 34.55 35.97 37.52 38.36

GCS Holdings Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book per Share 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 38.06 38.37 38.54 38.36 39.14

ROCO:4991 vs AMAT, LRCX, KLAC: Cyclically Adjusted Book per Share Comparison

For the Semiconductor Equipment & Materials subindustry, GCS Holdings's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted 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 Cyclically Adjusted PB Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, GCS Holdings's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where GCS Holdings's Cyclically Adjusted PB Ratio falls into.


ROCO:4991
62GF Score
GCS Holdings Inc ROCO:4991
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

GCS Holdings Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, GCS Holdings's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=35.255/330.2130*330.2130
=35.255

Current CPI (Mar. 2026) = 330.2130.

GCS Holdings Quarterly Data

Book Value per Share CPI Adj_Book
201606 25.567 241.018 35.029
201609 26.258 241.428 35.914
201612 27.872 241.432 38.121
201703 27.296 243.801 36.971
201706 27.743 244.955 37.399
201709 30.033 246.819 40.180
201712 32.244 246.524 43.190
201803 32.609 249.554 43.149
201806 34.373 251.989 45.043
201809 35.690 252.439 46.686
201812 36.679 251.233 48.210
201903 37.815 254.202 49.122
201906 38.060 256.143 49.066
201909 38.853 256.759 49.968
201912 38.855 256.974 49.929
202003 38.535 258.115 49.299
202006 40.471 257.797 51.839
202009 39.956 260.280 50.692
202012 38.671 260.474 49.025
202103 37.623 264.877 46.903
202106 36.517 271.696 44.382
202109 35.431 274.310 42.652
202112 40.228 278.802 47.646
202203 37.847 287.504 43.469
202206 37.212 296.311 41.470
202209 36.504 296.808 40.612
202212 32.961 296.797 36.672
202303 30.228 301.836 33.070
202306 28.993 305.109 31.379
202309 27.798 307.789 29.823
202312 26.473 306.746 28.498
202403 25.309 312.332 26.758
202406 24.485 314.175 25.735
202409 25.837 315.301 27.059
202412 26.548 315.605 27.777
202503 26.592 319.799 27.458
202506 24.601 322.561 25.185
202509 25.856 324.800 26.287
202512 28.127 324.054 28.662
202603 35.255 330.213 35.255

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of NT$39.14 mean?
GCS Holdings (ROCO:4991) has a Cyclically Adjusted Book per Share of NT$39.14 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on GCS Holdings and its competitors.
Is GCS Holdings' Cyclically Adjusted Book per Share too high?
GCS Holdings' current Cyclically Adjusted Book per Share is NT$39.14. 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' Cyclically Adjusted Book per Share compare to AMAT and LRCX?
GCS Holdings' Cyclically Adjusted Book per Share of NT$39.14 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 Cyclically Adjusted Book per Share for a Semiconductors company?
A good Cyclically Adjusted Book per Share depends on the Semiconductors industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on GCS Holdings and its competitors. GCS Holdings's current Cyclically Adjusted Book per Share is NT$39.14. 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 Cyclically Adjusted Book per Share is NT$39.14. 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 Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For GCS Holdings (ROCO:4991), the current Cyclically Adjusted Book per Share is NT$39.14 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$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:

  • Cyclically Adjusted Book per Share: NT$39.14
  • GF Value™: NT$111.20 vs. price of NT$382.50 (244% above fair value)
  • GF Score™: 62/100

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.
62GF Score

Get the complete analysis for ROCO:4991

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$382.50
Price
NT$111.20
GF Value