Lee Chang Yung Technology (TPE:4989) Cyclically Adjusted Book per Share: NT$17.08 (As of Dec. 2025)


TPE:4989 Lee Chang Yung Technology Corp TPE:4989
50 GF Score
Price NT$111.00
GF Value NT$16.71
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Lee Chang Yung Technology Cyclically Adjusted Book per Share?

Lee Chang Yung Technology TPE:4989 +0.45% 50 Cyclically Adjusted Book per Share is NT$17.08 as of Dec. 2025. GuruFocus rates TPE:4989 with a GF Score™ of 50/100 and a GF Value™ of NT$16.71 (Significantly 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.

Lee Chang Yung Technology's adjusted book value per share for the three months ended in Dec. 2025 was NT$10.200. 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$17.08 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Lee Chang Yung Technology's average Cyclically Adjusted Book Growth Rate was 5.00% 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 (2026-07-06), Lee Chang Yung Technology's current stock price is NT$111.00. Lee Chang Yung Technology's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$17.08. Lee Chang Yung Technology's Cyclically Adjusted PB Ratio of today is 6.50.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Lee Chang Yung Technology was 6.47. The lowest was 0.81. And the median was 1.52.


Lee Chang Yung Technology  (TPE:4989) 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.

Lee Chang Yung Technology's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=111.00/17.08
=6.50

* 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 Lee Chang Yung Technology was 6.47. The lowest was 0.81. And the median was 1.52.


Be Aware

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


Lee Chang Yung Technology Cyclically Adjusted Book per Share Related Terms


Lee Chang Yung Technology Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Lee Chang Yung Technology'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.

Lee Chang Yung Technology Cyclically Adjusted Book per Share Chart

Lee Chang Yung Technology 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 15.92 16.26 17.08

Lee Chang Yung Technology 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 16.26 16.58 16.87 17.16 17.08

TPE:4989 vs SCCO, FCX: Cyclically Adjusted Book per Share Comparison

For the Copper subindustry, Lee Chang Yung Technology'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.


Lee Chang Yung Technology Cyclically Adjusted PB Ratio vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Lee Chang Yung Technology's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Lee Chang Yung Technology's Cyclically Adjusted PB Ratio falls into.


TPE:4989
50GF Score
Lee Chang Yung Technology Corp TPE:4989
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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Lee Chang Yung Technology 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, Lee Chang Yung Technology'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)
=10.2/324.0540*324.0540
=10.200

Current CPI (Dec. 2025) = 324.0540.

Lee Chang Yung Technology Quarterly Data

Book Value per Share CPI Adj_Book
201412 8.090 234.812 11.165
201512 8.854 236.525 12.131
201609 0.000 241.428 0.000
201612 11.761 241.432 15.786
201703 0.000 243.801 0.000
201706 14.525 244.955 19.215
201709 15.343 246.819 20.144
201712 16.299 246.524 21.425
201803 17.055 249.554 22.146
201806 15.159 251.989 19.494
201809 15.617 252.439 20.047
201812 16.064 251.233 20.720
201903 16.349 254.202 20.842
201906 14.787 256.143 18.707
201909 14.891 256.759 18.794
201912 14.502 256.974 18.288
202003 14.723 258.115 18.484
202006 13.965 257.797 17.554
202009 14.029 260.280 17.466
202012 14.139 260.474 17.590
202103 14.991 264.877 18.340
202106 14.546 271.696 17.349
202109 15.629 274.310 18.463
202112 16.808 278.802 19.536
202203 17.860 287.504 20.131
202206 16.609 296.311 18.164
202209 16.580 296.808 18.102
202212 16.460 296.797 17.972
202303 15.952 301.836 17.126
202306 15.716 305.109 16.692
202309 15.608 307.789 16.433
202312 15.263 306.746 16.124
202403 15.269 312.332 15.842
202406 15.369 314.175 15.852
202409 14.552 315.301 14.956
202412 13.430 315.605 13.790
202503 12.683 319.799 12.852
202506 10.907 322.561 10.957
202509 10.317 324.800 10.293
202512 10.200 324.054 10.200

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$17.08 mean?
Lee Chang Yung Technology (TPE:4989) has a Cyclically Adjusted Book per Share of NT$17.08 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 Lee Chang Yung Technology and its competitors.
Is Lee Chang Yung Technology's Cyclically Adjusted Book per Share too high?
Lee Chang Yung Technology's current Cyclically Adjusted Book per Share is NT$17.08. Overall, Lee Chang Yung Technology has a GF Score™ of 50/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Lee Chang Yung Technology's Cyclically Adjusted Book per Share compare to SCCO and FCX?
Lee Chang Yung Technology's Cyclically Adjusted Book per Share of NT$17.08 can be compared against companies in the Metals & Mining 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 Metals & Mining company?
A good Cyclically Adjusted Book per Share depends on the Metals & Mining 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 Lee Chang Yung Technology and its competitors. Lee Chang Yung Technology's current Cyclically Adjusted Book per Share is NT$17.08. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Lee Chang Yung Technology stock overvalued right now?
Based on GuruFocus' analysis, Lee Chang Yung Technology (TPE:4989) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$16.71, compared to a current price of NT$111.00 — trading 564.3% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$17.08. Lee Chang Yung Technology's overall GF Score™ is 50/100 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 Lee Chang Yung Technology (TPE:4989), the current Cyclically Adjusted Book per Share is NT$17.08 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 Lee Chang Yung Technology (TPE:4989) Overvalued in 2026?

Based on GuruFocus' analysis, Lee Chang Yung Technology stock appears to be overvalued. The current stock price of NT$111.00 is trading 564.3% above its estimated GF Value™ of NT$16.71. GuruFocus considers Lee Chang Yung Technology to be Significantly Overvalued.

Key valuation signals for TPE:4989:

  • Cyclically Adjusted Book per Share: NT$17.08
  • GF Value™: NT$16.71 vs. price of NT$111.00 (564.3% above fair value)
  • GF Score™: 50/100 with 7 warning signs

No single metric tells the full story. See the TPE:4989 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Lee Chang Yung Technology Business Description

Address Bade Road, 5th Floor, No. 83, Section 4, Songshan District, Taipei City, TWN
Lee Chang Yung Technology Corp produces, manufactures, and sells electrolytic copper foil, an upstream material for printed circuit boards. The Group currently sells a single product, copper foil.
50GF Score

Get the complete analysis for TPE:4989

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

NT$111.00
Price
NT$16.71
GF Value