Yankey Engineering Co (TPE:6691) Cyclically Adjusted Book per Share: NT$35.71 (As of Dec. 2025)


TPE:6691 Yankey Engineering Co Ltd TPE:6691
98 GF Score
Price NT$748.00
GF Value NT$590.42
Valuation Modestly Overvalued
! 7 Warning Signs
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What is Yankey Engineering Co Cyclically Adjusted Book per Share?

Yankey Engineering Co TPE:6691 -1.84% 98 Cyclically Adjusted Book per Share is NT$35.71 as of Dec. 2025. GuruFocus rates TPE:6691 with a GF Score™ of 98/100 and a GF Value™ of NT$590.42 (Modestly Overvalued). The stock has 7 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.

Yankey Engineering Co's adjusted book value per share data for the fiscal year that ended in Dec. 2025 was NT$62.962. 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$35.71 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Yankey Engineering Co's average Cyclically Adjusted Book Growth Rate was 20.70% 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 (2026-07-07), Yankey Engineering Co's current stock price is NT$ 748.00. Yankey Engineering Co's Cyclically Adjusted Book per Share for the fiscal year that ended in Dec. 2025 was NT$35.71. Yankey Engineering Co's Cyclically Adjusted PB Ratio of today is 20.95.

During the past 12 years, the highest Cyclically Adjusted PB Ratio of Yankey Engineering Co was 22.21. The lowest was 9.33. And the median was 15.61.


Yankey Engineering Co  (TPE:6691) 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.

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

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=748.00/35.71
=20.95

* 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 12 years, the highest Cyclically Adjusted PB Ratio of Yankey Engineering Co was 22.21. The lowest was 9.33. And the median was 15.61.


Be Aware

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


Yankey Engineering Co Cyclically Adjusted Book per Share Related Terms


Yankey Engineering Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Yankey Engineering 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.

Yankey Engineering Co Cyclically Adjusted Book per Share Chart

Yankey Engineering 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 24.47 29.58 35.71

Yankey Engineering 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 29.58 0.00 0.00 0.00 35.71

TPE:6691 vs PWR, FIX, EME: Cyclically Adjusted Book per Share Comparison

For the Engineering & Construction subindustry, Yankey Engineering 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.


Yankey Engineering Co Cyclically Adjusted PB Ratio vs Construction Industry

For the Construction industry and Industrials sector, Yankey Engineering Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


TPE:6691
98GF Score
Yankey Engineering Co Ltd TPE:6691
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Yankey Engineering 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, Yankey Engineering Co's adjusted Book Value per Share data for the fiscal year that ended in Dec. 2025 was:

Adj_Book=Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=62.962/324.0540*324.0540
=62.962

Current CPI (Dec. 2025) = 324.0540.

Yankey Engineering Co Annual Data

Book Value per Share CPI Adj_Book
201612 11.489 241.432 15.421
201712 12.892 246.524 16.946
201812 16.455 251.233 21.225
201912 18.986 256.974 23.942
202012 19.693 260.474 24.500
202112 36.967 278.802 42.967
202212 42.606 296.797 46.519
202312 46.409 306.746 49.028
202412 52.168 315.605 53.565
202512 62.962 324.054 62.962

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$35.71 mean?
Yankey Engineering Co (TPE:6691) has a Cyclically Adjusted Book per Share of NT$35.71 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 Yankey Engineering Co and its competitors.
Is Yankey Engineering Co's Cyclically Adjusted Book per Share too high?
Yankey Engineering Co's current Cyclically Adjusted Book per Share is NT$35.71. Overall, Yankey Engineering Co has a GF Score™ of 98/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Yankey Engineering Co's Cyclically Adjusted Book per Share compare to PWR and FIX?
Yankey Engineering Co's Cyclically Adjusted Book per Share of NT$35.71 can be compared against companies in the Construction 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 Construction company?
A good Cyclically Adjusted Book per Share depends on the Construction 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 Yankey Engineering Co and its competitors. Yankey Engineering Co's current Cyclically Adjusted Book per Share is NT$35.71. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Yankey Engineering Co stock overvalued right now?
Based on GuruFocus' analysis, Yankey Engineering Co (TPE:6691) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$590.42, compared to a current price of NT$748.00 — trading 26.7% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$35.71. Yankey Engineering Co's overall GF Score™ is 98/100 with 7 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 Yankey Engineering Co (TPE:6691), the current Cyclically Adjusted Book per Share is NT$35.71 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 Yankey Engineering Co (TPE:6691) Overvalued in 2026?

Based on GuruFocus' analysis, Yankey Engineering Co stock appears to be overvalued. The current stock price of NT$748.00 is trading 26.7% above its estimated GF Value™ of NT$590.42. GuruFocus considers Yankey Engineering Co to be Modestly Overvalued.

Key valuation signals for TPE:6691:

  • Cyclically Adjusted Book per Share: NT$35.71
  • GF Value™: NT$590.42 vs. price of NT$748.00 (26.7% above fair value)
  • GF Score™: 98/100 with 7 warning signs

No single metric tells the full story. See the TPE:6691 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Yankey Engineering Co Business Description

Address Wenhua 2nd Road, Section 1, No. 266, Room 3, 18th Floor, Linkou District, New Taipei City, TWN, 244
Yankey Engineering Co Ltd is engaged in the design and installation of clean room systems, refrigeration, air conditioning systems, and ice-making systems, as well as the sales of materials for these systems. The various services offered by the company include clean room system engineering, high and low voltage transmission system installation, design and construction of fire, water, and electrical systems, and providing comprehensive MEP (Mechanical, Electrical, Plumbing) turnkey services for commercial office buildings, among others. Geographically, the company generates the majority of its revenue from Taiwan and the rest from China, Thailand, Malaysia, and the USA.
98GF Score

Get the complete analysis for TPE:6691

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

NT$748.00
Price
NT$590.42
GF Value