EFUN Technology Co (ROCO:3523) Cyclically Adjusted Book per Share: NT$10.70 (As of Jun. 2026)

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ROCO:3523 EFUN Technology Co Ltd ROCO:3523
38 GF Score
Price NT$15.40
GF Value NT$11.00
Valuation Significantly Overvalued
! 5 Warning Signs
View Full Analysis

What is EFUN Technology Co Cyclically Adjusted Book per Share?

EFUN Technology Co ROCO:3523 38 Cyclically Adjusted Book per Share is NT$10.70 as of Jun. 2026. GuruFocus rates ROCO:3523 with a GF Score™ of 38/100 and a GF Value™ of NT$11.00 (Significantly Overvalued). The stock has 5 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.

EFUN Technology Co's adjusted book value per share for the three months ended in Jun. 2026 was NT$5.741. 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$10.70 for the trailing ten years ended in Jun. 2026.

During the past 12 months, EFUN Technology Co's average Cyclically Adjusted Book Growth Rate was -19.30% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -25.20% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -23.30% 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 EFUN Technology Co was -16.00% per year. The lowest was -25.20% per year. And the median was -22.80% per year.

As of today (2026-08-30), EFUN Technology Co's current stock price is NT$15.40. EFUN Technology Co's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was NT$10.70. EFUN Technology Co's Cyclically Adjusted PB Ratio of today is 1.44.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of EFUN Technology Co was 1.88. The lowest was 0.27. And the median was 0.67.


EFUN Technology Co  (ROCO:3523) 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.

EFUN Technology Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=15.40/10.70
=1.44

* 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 EFUN Technology Co was 1.88. The lowest was 0.27. And the median was 0.67.


Be Aware

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


EFUN Technology Co Cyclically Adjusted Book per Share Related Terms


EFUN Technology Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for EFUN Technology 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.

EFUN Technology Co Cyclically Adjusted Book per Share Chart

EFUN Technology 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 35.06 27.67 20.63 15.11 11.57

EFUN Technology Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 13.26 12.35 11.57 11.13 10.70

ROCO:3523 vs APH, GLW, TEL: Cyclically Adjusted Book per Share Comparison

For the Electronic Components subindustry, EFUN Technology 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.


EFUN Technology Co Cyclically Adjusted PB Ratio vs Hardware Industry

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

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


ROCO:3523
38GF Score
EFUN Technology Co Ltd ROCO:3523
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

EFUN Technology 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, EFUN Technology Co's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=5.741/333.9520*333.9520
=5.741

Current CPI (Jun. 2026) = 333.9520.

EFUN Technology Co Quarterly Data

Book Value per Share CPI Adj_Book
201609 16.749 241.428 23.168
201612 10.504 241.432 14.529
201703 7.782 243.801 10.660
201706 4.228 244.955 5.764
201709 17.056 246.819 23.077
201712 14.782 246.524 20.024
201803 13.497 249.554 18.062
201806 11.866 251.989 15.726
201809 15.712 252.439 20.785
201812 9.949 251.233 13.225
201903 9.158 254.202 12.031
201906 8.383 256.143 10.930
201909 8.518 256.759 11.079
201912 8.652 256.974 11.244
202003 8.480 258.115 10.972
202006 9.011 257.797 11.673
202009 8.749 260.280 11.225
202012 8.649 260.474 11.089
202103 8.383 264.877 10.569
202106 7.808 271.696 9.597
202109 7.511 274.310 9.144
202112 7.033 278.802 8.424
202203 6.577 287.504 7.640
202206 5.970 296.311 6.728
202209 5.419 296.808 6.097
202212 4.789 296.797 5.389
202303 4.037 301.836 4.467
202306 10.051 305.109 11.001
202309 9.531 307.789 10.341
202312 8.698 306.746 9.469
202403 8.208 312.332 8.776
202406 7.778 314.175 8.268
202409 7.172 315.301 7.596
202412 8.072 315.605 8.541
202503 7.646 319.799 7.984
202506 7.054 322.561 7.303
202509 6.580 324.800 6.765
202512 6.626 324.054 6.828
202603 6.176 330.213 6.246
202606 5.741 333.952 5.741

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$10.70 mean?
EFUN Technology Co (ROCO:3523) has a Cyclically Adjusted Book per Share of NT$10.70 as of Jun. 2026. 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 EFUN Technology Co and its competitors.
Is EFUN Technology Co's Cyclically Adjusted Book per Share too high?
EFUN Technology Co's current Cyclically Adjusted Book per Share is NT$10.70. Overall, EFUN Technology Co has a GF Score™ of 38/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does EFUN Technology Co's Cyclically Adjusted Book per Share compare to APH and GLW?
EFUN Technology Co's Cyclically Adjusted Book per Share of NT$10.70 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 EFUN Technology Co and its competitors. EFUN Technology Co's current Cyclically Adjusted Book per Share is NT$10.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is EFUN Technology Co stock overvalued right now?
Based on GuruFocus' analysis, EFUN Technology Co (ROCO:3523) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$11.00, compared to a current price of NT$15.40 — trading 40% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$10.70. EFUN Technology Co's overall GF Score™ is 38/100 with 5 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 EFUN Technology Co (ROCO:3523), the current Cyclically Adjusted Book per Share is NT$10.70 as of Jun. 2026. 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 EFUN Technology Co (ROCO:3523) Overvalued in 2026?

Based on GuruFocus' analysis, EFUN Technology Co stock appears to be overvalued. The current stock price of NT$15.40 is trading 40% above its estimated GF Value™ of NT$11.00. GuruFocus considers EFUN Technology Co to be Significantly Overvalued.

Key valuation signals for ROCO:3523:

  • Cyclically Adjusted Book per Share: NT$10.70
  • GF Value™: NT$11.00 vs. price of NT$15.40 (40% above fair value)
  • GF Score™: 38/100 with 5 warning signs

No single metric tells the full story. See the ROCO:3523 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


EFUN Technology Co Business Description

Address No. 391, Section 2, Bentian Road, Annan District, Tainan, TWN, 70955
EFUN Technology Co Ltd is primarily engaged in the business related to optical film, electronic optical components, and solar photovoltaic power generation system construction.
38GF Score

Get the complete analysis for ROCO:3523

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

NT$15.40
Price
NT$11.00
GF Value