Good Will Instrument Co (TPE:2423) Cyclically Adjusted Book per Share: NT$19.33 (As of Dec. 2025)

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TPE:2423 Good Will Instrument Co Ltd TPE:2423
76 GF Score
Price NT$77.70
GF Value NT$41.47
Valuation Significantly Overvalued
! 4 Warning Signs
View Full Analysis

What is Good Will Instrument Co Cyclically Adjusted Book per Share?

Good Will Instrument Co TPE:2423 -6.05% 76 Cyclically Adjusted Book per Share is NT$19.33 as of Dec. 2025. GuruFocus rates TPE:2423 with a GF Score™ of 76/100 and a GF Value™ of NT$41.47 (Significantly Overvalued). The stock has 4 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.

Good Will Instrument Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$20.433. 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$19.33 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Good Will Instrument Co's average Cyclically Adjusted Book Growth Rate was 2.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 3.40% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 5.20% 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.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Good Will Instrument Co was 6.80% per year. The lowest was 3.40% per year. And the median was 5.55% per year.

As of today (2026-07-20), Good Will Instrument Co's current stock price is NT$77.70. Good Will Instrument Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$19.33. Good Will Instrument Co's Cyclically Adjusted PB Ratio of today is 4.02.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Good Will Instrument Co was 4.25. The lowest was 1.38. And the median was 1.87.


Good Will Instrument Co  (TPE:2423) 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.

Good Will Instrument Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=77.70/19.33
=4.02

* 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 Good Will Instrument Co was 4.25. The lowest was 1.38. And the median was 1.87.


Be Aware

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


Good Will Instrument Co Cyclically Adjusted Book per Share Related Terms


Good Will Instrument Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Good Will Instrument 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.

Good Will Instrument Co Cyclically Adjusted Book per Share Chart

Good Will Instrument 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 16.23 17.47 18.23 18.83 19.33

Good Will Instrument 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 18.83 19.07 19.24 19.35 19.33

TPE:2423 vs COHR, KEYS, GRMN: Cyclically Adjusted Book per Share Comparison

For the Scientific & Technical Instruments subindustry, Good Will Instrument 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.


Good Will Instrument Co Cyclically Adjusted PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Good Will Instrument Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


TPE:2423
76GF Score
Good Will Instrument Co Ltd TPE:2423
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Good Will Instrument 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, Good Will Instrument 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)
=20.433/324.0540*324.0540
=20.433

Current CPI (Dec. 2025) = 324.0540.

Good Will Instrument Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 14.770 238.132 20.099
201606 14.374 241.018 19.326
201609 14.549 241.428 19.528
201612 14.979 241.432 20.105
201703 15.201 243.801 20.205
201706 14.435 244.955 19.096
201709 14.926 246.819 19.597
201712 15.218 246.524 20.004
201803 15.772 249.554 20.480
201806 14.962 251.989 19.241
201809 15.327 252.439 19.675
201812 16.000 251.233 20.638
201903 16.605 254.202 21.168
201906 15.295 256.143 19.350
201909 15.675 256.759 19.783
201912 16.129 256.974 20.339
202003 14.969 258.115 18.793
202006 15.028 257.797 18.890
202009 15.537 260.280 19.344
202012 16.041 260.474 19.957
202103 15.222 264.877 18.623
202106 15.469 271.696 18.450
202109 15.923 274.310 18.811
202112 16.766 278.802 19.487
202203 15.979 287.504 18.010
202206 16.471 296.311 18.013
202209 17.337 296.808 18.928
202212 18.158 296.797 19.826
202303 16.759 301.836 17.993
202306 17.222 305.109 18.291
202309 18.166 307.789 19.126
202312 18.902 306.746 19.969
202403 17.452 312.332 18.107
202406 17.857 314.175 18.419
202409 18.552 315.301 19.067
202412 19.394 315.605 19.913
202503 18.278 319.799 18.521
202506 18.184 322.561 18.268
202509 19.201 324.800 19.157
202512 20.433 324.054 20.433

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$19.33 mean?
Good Will Instrument Co (TPE:2423) has a Cyclically Adjusted Book per Share of NT$19.33 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 Good Will Instrument Co and its competitors.
Is Good Will Instrument Co's Cyclically Adjusted Book per Share too high?
Good Will Instrument Co's current Cyclically Adjusted Book per Share is NT$19.33. Overall, Good Will Instrument Co has a GF Score™ of 76/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Good Will Instrument Co's Cyclically Adjusted Book per Share compare to COHR and KEYS?
Good Will Instrument Co's Cyclically Adjusted Book per Share of NT$19.33 can be compared against companies in the Hardware 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 Hardware company?
A good Cyclically Adjusted Book per Share depends on the Hardware 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 Good Will Instrument Co and its competitors. Good Will Instrument Co's current Cyclically Adjusted Book per Share is NT$19.33. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Good Will Instrument Co stock overvalued right now?
Based on GuruFocus' analysis, Good Will Instrument Co (TPE:2423) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$41.47, compared to a current price of NT$77.70 — trading 87.4% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$19.33. Good Will Instrument Co's overall GF Score™ is 76/100 with 4 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 Good Will Instrument Co (TPE:2423), the current Cyclically Adjusted Book per Share is NT$19.33 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 Good Will Instrument Co (TPE:2423) Overvalued in 2026?

Based on GuruFocus' analysis, Good Will Instrument Co stock appears to be overvalued. The current stock price of NT$77.70 is trading 87.4% above its estimated GF Value™ of NT$41.47. GuruFocus considers Good Will Instrument Co to be Significantly Overvalued.

Key valuation signals for TPE:2423:

  • Cyclically Adjusted Book per Share: NT$19.33
  • GF Value™: NT$41.47 vs. price of NT$77.70 (87.4% above fair value)
  • GF Score™: 76/100 with 4 warning signs

No single metric tells the full story. See the TPE:2423 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Good Will Instrument Co Business Description

Address Jhongsing Road, No. 7-1, Tucheng District, New Taipei City, TWN, 236
Good Will Instrument Co Ltd manufactures and sells electrical testing instruments, communication equipment, and related products. Its products include oscilloscopes, spectrum analyzers, signal sources, power supplies, public broadcasting and video monitoring systems, environmental testing equipment, constant temperature and humidity equipment, and vibration test equipment, among others. Geographically, the company generates a majority of its revenue from China and the rest from Japan, Taiwan, America, Europe, and other countries.
76GF Score

Get the complete analysis for TPE:2423

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

NT$77.70
Price
NT$41.47
GF Value