G-Tech Optoelectronics (TPE:3149) Cyclically Adjusted Book per Share: NT$12.80 (As of Dec. 2025)

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TPE:3149 G-Tech Optoelectronics Corp TPE:3149
51 GF Score
Price NT$87.30
GF Value NT$21.98
Valuation Significantly Overvalued
! 6 Warning Signs
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What is G-Tech Optoelectronics Cyclically Adjusted Book per Share?

G-Tech Optoelectronics TPE:3149 -5.42% 51 Cyclically Adjusted Book per Share is NT$12.80 as of Dec. 2025. GuruFocus rates TPE:3149 with a GF Score™ of 51/100 and a GF Value™ of NT$21.98 (Significantly Overvalued). The stock has 6 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.

G-Tech Optoelectronics's adjusted book value per share for the three months ended in Dec. 2025 was NT$11.301. 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$12.80 for the trailing ten years ended in Dec. 2025.

During the past 12 months, G-Tech Optoelectronics's average Cyclically Adjusted Book Growth Rate was -17.20% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -25.70% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -22.10% 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 G-Tech Optoelectronics was -10.00% per year. The lowest was -25.70% per year. And the median was -21.65% per year.

As of today (2026-07-15), G-Tech Optoelectronics's current stock price is NT$87.30. G-Tech Optoelectronics's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$12.80. G-Tech Optoelectronics's Cyclically Adjusted PB Ratio of today is 6.82.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of G-Tech Optoelectronics was 7.64. The lowest was 0.16. And the median was 1.03.


G-Tech Optoelectronics  (TPE:3149) 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.

G-Tech Optoelectronics's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=87.30/12.80
=6.82

* 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 G-Tech Optoelectronics was 7.64. The lowest was 0.16. And the median was 1.03.


Be Aware

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


G-Tech Optoelectronics Cyclically Adjusted Book per Share Related Terms


G-Tech Optoelectronics Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for G-Tech Optoelectronics'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.

G-Tech Optoelectronics Cyclically Adjusted Book per Share Chart

G-Tech Optoelectronics 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 37.63 31.26 22.55 15.45 12.80

G-Tech Optoelectronics 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 15.45 14.01 13.48 13.04 12.80

TPE:3149 vs APH, GLW: Cyclically Adjusted Book per Share Comparison

For the Electronic Components subindustry, G-Tech Optoelectronics'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.


G-Tech Optoelectronics Cyclically Adjusted PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, G-Tech Optoelectronics's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where G-Tech Optoelectronics's Cyclically Adjusted PB Ratio falls into.


TPE:3149
51GF Score
G-Tech Optoelectronics Corp TPE:3149
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

G-Tech Optoelectronics 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, G-Tech Optoelectronics'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)
=11.301/324.0540*324.0540
=11.301

Current CPI (Dec. 2025) = 324.0540.

G-Tech Optoelectronics Quarterly Data

Book Value per Share CPI Adj_Book
201603 14.364 238.132 19.547
201606 14.358 241.018 19.305
201609 12.720 241.428 17.073
201612 10.552 241.432 14.163
201703 10.487 243.801 13.939
201706 10.689 244.955 14.141
201709 11.706 246.819 15.369
201712 11.677 246.524 15.349
201803 11.341 249.554 14.727
201806 11.702 251.989 15.049
201809 12.006 252.439 15.412
201812 11.365 251.233 14.659
201903 11.037 254.202 14.070
201906 10.994 256.143 13.909
201909 10.759 256.759 13.579
201912 10.491 256.974 13.230
202003 10.041 258.115 12.606
202006 8.737 257.797 10.983
202009 8.832 260.280 10.996
202012 10.628 260.474 13.222
202103 10.677 264.877 13.062
202106 10.691 271.696 12.751
202109 10.566 274.310 12.482
202112 9.905 278.802 11.513
202203 9.626 287.504 10.850
202206 10.610 296.311 11.603
202209 10.269 296.808 11.212
202212 9.526 296.797 10.401
202303 9.387 301.836 10.078
202306 9.291 305.109 9.868
202309 9.158 307.789 9.642
202312 8.797 306.746 9.293
202403 8.831 312.332 9.162
202406 11.246 314.175 11.600
202409 10.970 315.301 11.275
202412 10.251 315.605 10.525
202503 9.501 319.799 9.627
202506 12.575 322.561 12.633
202509 11.852 324.800 11.825
202512 11.301 324.054 11.301

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$12.80 mean?
G-Tech Optoelectronics (TPE:3149) has a Cyclically Adjusted Book per Share of NT$12.80 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 G-Tech Optoelectronics and its competitors.
Is G-Tech Optoelectronics' Cyclically Adjusted Book per Share too high?
G-Tech Optoelectronics' current Cyclically Adjusted Book per Share is NT$12.80. Overall, G-Tech Optoelectronics has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does G-Tech Optoelectronics' Cyclically Adjusted Book per Share compare to APH and GLW?
G-Tech Optoelectronics' Cyclically Adjusted Book per Share of NT$12.80 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 G-Tech Optoelectronics and its competitors. G-Tech Optoelectronics's current Cyclically Adjusted Book per Share is NT$12.80. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is G-Tech Optoelectronics stock overvalued right now?
Based on GuruFocus' analysis, G-Tech Optoelectronics (TPE:3149) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$21.98, compared to a current price of NT$87.30 — trading 297.2% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$12.80. G-Tech Optoelectronics' overall GF Score™ is 51/100 with 6 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 G-Tech Optoelectronics (TPE:3149), the current Cyclically Adjusted Book per Share is NT$12.80 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 G-Tech Optoelectronics (TPE:3149) Overvalued in 2026?

Based on GuruFocus' analysis, G-Tech Optoelectronics stock appears to be overvalued. The current stock price of NT$87.30 is trading 297.2% above its estimated GF Value™ of NT$21.98. GuruFocus considers G-Tech Optoelectronics to be Significantly Overvalued.

Key valuation signals for TPE:3149:

  • Cyclically Adjusted Book per Share: NT$12.80
  • GF Value™: NT$21.98 vs. price of NT$87.30 (297.2% above fair value)
  • GF Score™: 51/100 with 6 warning signs

No single metric tells the full story. See the TPE:3149 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


G-Tech Optoelectronics Business Description

Address No. 99, Zhongxing Road, Tongluo Township, Miaoli, TWN, 36647
G-Tech Optoelectronics Corp operates in an optoelectronic glass processing market. The company manufactures and markets optical glass products and electronic components. The segments of the company are Smart optoelectronics, that is revenue-generating segment; Smart buildings, and Smart cars. The Smart optoelectronics is in charge of designing, manufacturing, and selling general consumer electronics vehicle glass as well as protective touch control glass for industrial control computers.
51GF Score

Get the complete analysis for TPE:3149

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

NT$87.30
Price
NT$21.98
GF Value