Tai-Tech Advanced Electronics Co (ROCO:3357) Cyclically Adjusted Book per Share: NT$54.05 (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:3357 Tai-Tech Advanced Electronics Co Ltd ROCO:3357
58 GF Score
Price NT$236.50
GF Value NT$153.94
Valuation Significantly Overvalued
! 3 Warning Signs
View Full Analysis

What is Tai-Tech Advanced Electronics Co Cyclically Adjusted Book per Share?

Tai-Tech Advanced Electronics Co ROCO:3357 -5.40% 58 Cyclically Adjusted Book per Share is NT$54.05 as of Dec. 2025. GuruFocus rates ROCO:3357 with a GF Score™ of 58/100 and a GF Value™ of NT$153.94 (Significantly Overvalued). The stock has 3 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.

Tai-Tech Advanced Electronics Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$78.698. 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$54.05 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Tai-Tech Advanced Electronics Co's average Cyclically Adjusted Book Growth Rate was 12.90% 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), Tai-Tech Advanced Electronics Co's current stock price is NT$236.50. Tai-Tech Advanced Electronics Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$54.05. Tai-Tech Advanced Electronics Co's Cyclically Adjusted PB Ratio of today is 4.38.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Tai-Tech Advanced Electronics Co was 6.44. The lowest was 1.82. And the median was 2.71.


Tai-Tech Advanced Electronics Co  (ROCO:3357) 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.

Tai-Tech Advanced Electronics Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=236.50/54.05
=4.38

* 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 Tai-Tech Advanced Electronics Co was 6.44. The lowest was 1.82. And the median was 2.71.


Be Aware

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


Tai-Tech Advanced Electronics Co Cyclically Adjusted Book per Share Related Terms


Tai-Tech Advanced Electronics Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Tai-Tech Advanced Electronics 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.

Tai-Tech Advanced Electronics Co Cyclically Adjusted Book per Share Chart

Tai-Tech Advanced Electronics 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 42.91 47.87 54.05

Tai-Tech Advanced Electronics 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 47.87 49.71 51.29 52.78 54.05

ROCO:3357 vs APH, GLW: Cyclically Adjusted Book per Share Comparison

For the Electronic Components subindustry, Tai-Tech Advanced Electronics 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.


Tai-Tech Advanced Electronics Co Cyclically Adjusted PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Tai-Tech Advanced Electronics Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Tai-Tech Advanced Electronics Co's Cyclically Adjusted PB Ratio falls into.


ROCO:3357
58GF Score
Tai-Tech Advanced Electronics Co Ltd ROCO:3357
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tai-Tech Advanced Electronics 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, Tai-Tech Advanced Electronics 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)
=78.698/324.0540*324.0540
=78.698

Current CPI (Dec. 2025) = 324.0540.

Tai-Tech Advanced Electronics Co Quarterly Data

Book Value per Share CPI Adj_Book
201312 20.414 233.049 28.386
201403 0.000 236.293 0.000
201406 21.466 238.343 29.185
201412 24.894 234.812 34.355
201503 25.675 236.119 35.237
201506 24.595 238.638 33.398
201512 26.517 236.525 36.330
201606 25.885 241.018 34.803
201612 26.773 241.432 35.935
201706 25.597 244.955 33.863
201712 28.105 246.524 36.944
201806 30.669 251.989 39.440
201812 32.132 251.233 41.446
201906 30.966 256.143 39.176
201909 0.000 256.759 0.000
201912 33.050 256.974 41.677
202003 0.000 258.115 0.000
202006 34.096 257.797 42.859
202009 36.530 260.280 45.481
202012 39.186 260.474 48.751
202103 42.203 264.877 51.632
202106 54.138 271.696 64.571
202109 57.197 274.310 67.569
202112 60.335 278.802 70.128
202203 57.571 287.504 64.890
202206 60.424 296.311 66.081
202209 63.065 296.808 68.854
202212 63.949 296.797 69.822
202303 60.513 301.836 64.967
202306 62.102 305.109 65.958
202309 65.255 307.789 68.703
202312 65.426 306.746 69.118
202403 65.336 312.332 67.788
202406 67.092 314.175 69.202
202409 70.209 315.301 72.158
202412 73.318 315.605 75.281
202503 70.370 319.799 71.306
202506 67.705 322.561 68.018
202509 67.984 324.800 67.828
202512 78.698 324.054 78.698

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$54.05 mean?
Tai-Tech Advanced Electronics Co (ROCO:3357) has a Cyclically Adjusted Book per Share of NT$54.05 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 Tai-Tech Advanced Electronics Co and its competitors.
Is Tai-Tech Advanced Electronics Co's Cyclically Adjusted Book per Share too high?
Tai-Tech Advanced Electronics Co's current Cyclically Adjusted Book per Share is NT$54.05. Overall, Tai-Tech Advanced Electronics Co has a GF Score™ of 58/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tai-Tech Advanced Electronics Co's Cyclically Adjusted Book per Share compare to APH and GLW?
Tai-Tech Advanced Electronics Co's Cyclically Adjusted Book per Share of NT$54.05 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 Tai-Tech Advanced Electronics Co and its competitors. Tai-Tech Advanced Electronics Co's current Cyclically Adjusted Book per Share is NT$54.05. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tai-Tech Advanced Electronics Co stock overvalued right now?
Based on GuruFocus' analysis, Tai-Tech Advanced Electronics Co (ROCO:3357) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$153.94, compared to a current price of NT$236.50 — trading 53.6% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$54.05. Tai-Tech Advanced Electronics Co's overall GF Score™ is 58/100 with 3 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 Tai-Tech Advanced Electronics Co (ROCO:3357), the current Cyclically Adjusted Book per Share is NT$54.05 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 Tai-Tech Advanced Electronics Co (ROCO:3357) Overvalued in 2026?

Based on GuruFocus' analysis, Tai-Tech Advanced Electronics Co stock appears to be overvalued. The current stock price of NT$236.50 is trading 53.6% above its estimated GF Value™ of NT$153.94. GuruFocus considers Tai-Tech Advanced Electronics Co to be Significantly Overvalued.

Key valuation signals for ROCO:3357:

  • Cyclically Adjusted Book per Share: NT$54.05
  • GF Value™: NT$153.94 vs. price of NT$236.50 (53.6% above fair value)
  • GF Score™: 58/100 with 3 warning signs

No single metric tells the full story. See the ROCO:3357 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tai-Tech Advanced Electronics Co Business Description

Address No. 1, You 4th Road, Youth Industrial Park, Yangmei District, Taoyuan, TWN, 326013
Tai-Tech Advanced Electronics Co Ltd is engaged in the manufacturing and processing of electronic parts, magnet cores, multilayer wire-wound and other wire-wound products. The company focuses on the development, manufacturing and sales of magnetic materials and inductor components. The Company's revenue is derived from Wire-Wound Products, Multilayer Products, and Others.
58GF Score

Get the complete analysis for ROCO:3357

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

NT$236.50
Price
NT$153.94
GF Value