GlobalWafers Co (ROCO:6488) Cyclically Adjusted Book per Share: NT$128.56 (As of Dec. 2025)

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ROCO:6488 GlobalWafers Co Ltd ROCO:6488
66 GF Score
Price NT$1,370.00
GF Value NT$414.74
Valuation Significantly Overvalued
! 10 Warning Signs
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What is GlobalWafers Co Cyclically Adjusted Book per Share?

GlobalWafers Co ROCO:6488 -7.43% 66 Cyclically Adjusted Book per Share is NT$128.56 as of Dec. 2025. GuruFocus rates ROCO:6488 with a GF Score™ of 66/100 and a GF Value™ of NT$414.74 (Significantly Overvalued). The stock has 10 warning signs investors should review.

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.

GlobalWafers Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$195.139. 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$128.56 for the trailing ten years ended in Dec. 2025.

During the past 12 months, GlobalWafers Co's average Cyclically Adjusted Book Growth Rate was 14.20% 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.

As of today (2026-07-16), GlobalWafers Co's current stock price is NT$1370.00. GlobalWafers Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$128.56. GlobalWafers Co's Cyclically Adjusted PB Ratio of today is 10.66.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of GlobalWafers Co was 10.50. The lowest was 2.42. And the median was 4.21.


GlobalWafers Co  (ROCO:6488) 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.

GlobalWafers Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=1370.00/128.56
=10.66

* 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 GlobalWafers Co was 10.50. The lowest was 2.42. And the median was 4.21.


Be Aware

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


GlobalWafers Co Cyclically Adjusted Book per Share Related Terms


GlobalWafers Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for GlobalWafers Co'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.

GlobalWafers Co Cyclically Adjusted Book per Share Chart

GlobalWafers Co 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 0.00 0.00 99.24 112.62 128.56

GlobalWafers Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
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 112.62 117.40 121.50 125.52 128.56

ROCO:6488 vs NVDA, AVGO, MU: Cyclically Adjusted Book per Share Comparison

For the Semiconductors subindustry, GlobalWafers Co'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.


GlobalWafers Co Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


ROCO:6488
66GF Score
GlobalWafers Co Ltd ROCO:6488
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

GlobalWafers Co 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, GlobalWafers Co's adjusted Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book= Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=195.139/324.0540*324.0540
=195.139

Current CPI (Dec. 2025) = 324.0540.

GlobalWafers Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 46.706 238.132 63.558
201606 44.853 241.018 60.306
201609 45.890 241.428 61.595
201612 42.721 241.432 57.341
201703 42.390 243.801 56.344
201706 69.044 244.955 91.339
201709 72.668 246.819 95.407
201712 77.864 246.524 102.352
201803 84.876 249.554 110.214
201806 83.875 251.989 107.862
201809 91.166 252.439 117.029
201812 99.117 251.233 127.847
201903 107.876 254.202 137.519
201906 92.580 256.143 117.126
201909 98.958 256.759 124.894
201912 103.546 256.974 130.575
202003 84.031 258.115 105.498
202006 91.211 257.797 114.653
202009 99.011 260.280 123.271
202012 101.450 260.474 126.213
202103 102.810 264.877 125.779
202106 104.535 271.696 124.680
202109 108.932 274.310 128.686
202112 104.843 278.802 121.860
202203 108.644 287.504 122.456
202206 103.137 296.311 112.794
202209 115.088 296.808 125.653
202212 124.815 296.797 136.278
202303 133.648 301.836 143.486
202306 135.647 305.109 144.070
202309 152.060 307.789 160.096
202312 152.367 306.746 160.964
202403 149.584 312.332 155.198
202406 189.884 314.175 195.855
202409 197.456 315.301 202.938
202412 190.396 315.605 195.493
202503 191.755 319.799 194.306
202506 177.539 322.561 178.361
202509 187.766 324.800 187.335
202512 195.139 324.054 195.139

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$128.56 mean?
GlobalWafers Co (ROCO:6488) has a Cyclically Adjusted Book per Share of NT$128.56 as of Dec. 2025. 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 GlobalWafers Co and its competitors.
Is GlobalWafers Co's Cyclically Adjusted Book per Share too high?
GlobalWafers Co's current Cyclically Adjusted Book per Share is NT$128.56. Overall, GlobalWafers Co has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does GlobalWafers Co's Cyclically Adjusted Book per Share compare to NVDA and AVGO?
GlobalWafers Co's Cyclically Adjusted Book per Share of NT$128.56 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 GlobalWafers Co and its competitors. GlobalWafers Co's current Cyclically Adjusted Book per Share is NT$128.56. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is GlobalWafers Co stock overvalued right now?
Based on GuruFocus' analysis, GlobalWafers Co (ROCO:6488) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$414.74, compared to a current price of NT$1,370.00 — trading 230.3% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$128.56. GlobalWafers Co's overall GF Score™ is 66/100 with 10 warning signs to review. 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 GlobalWafers Co (ROCO:6488), the current Cyclically Adjusted Book per Share is NT$128.56 as of Dec. 2025. 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 GlobalWafers Co (ROCO:6488) Overvalued in 2026?

Based on GuruFocus' analysis, GlobalWafers Co stock appears to be overvalued. The current stock price of NT$1,370.00 is trading 230.3% above its estimated GF Value™ of NT$414.74. GuruFocus considers GlobalWafers Co to be Significantly Overvalued.

Key valuation signals for ROCO:6488:

  • Cyclically Adjusted Book per Share: NT$128.56
  • GF Value™: NT$414.74 vs. price of NT$1,370.00 (230.3% above fair value)
  • GF Score™: 66/100 with 10 warning signs

No single metric tells the full story. See the ROCO:6488 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


GlobalWafers Co Business Description

Address No. 8, Industrial East Road 2, Hsinchu Science Park, Hsinchu, TWN
GlobalWafers is 46.64% owned by Sino-American Silicon Products after being spun off in 2011. The main source of the company's revenue is selling silicon wafers to chipmakers like TSMC and Texas Instruments. It also derives sales from gallium nitride products and green energy. GlobalWafers runs 18 production sites in nine countries across Asia, North America, and Europe. GlobalWafers is headquartered in Hsinchu, Taiwan, and employs over 7,084 people as of March 31, 2026. GlobalWafers had nearly 17% market share in silicon wafers in 2025.
66GF Score

Get the complete analysis for ROCO:6488

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

NT$1,370.00
Price
NT$414.74
GF Value