Eiso Enterprise Co (ROCO:5291) Cyclically Adjusted Book per Share: NT$25.64 (As of Dec. 2025)

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ROCO:5291 Eiso Enterprise Co Ltd ROCO:5291
59 GF Score
Price NT$54.70
GF Value NT$25.87
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Eiso Enterprise Co Cyclically Adjusted Book per Share?

Eiso Enterprise Co ROCO:5291 +3.21% 59 Cyclically Adjusted Book per Share is NT$25.64 as of Dec. 2025. GuruFocus rates ROCO:5291 with a GF Score™ of 59/100 and a GF Value™ of NT$25.87 (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.

Eiso Enterprise Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$23.286. 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$25.64 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Eiso Enterprise Co's average Cyclically Adjusted Book Growth Rate was 0.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 1.80% 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 Eiso Enterprise Co was 1.80% per year. The lowest was 1.80% per year. And the median was 1.80% per year.

As of today (2026-07-16), Eiso Enterprise Co's current stock price is NT$54.70. Eiso Enterprise Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$25.64. Eiso Enterprise Co's Cyclically Adjusted PB Ratio of today is 2.13.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Eiso Enterprise Co was 2.98. The lowest was 0.85. And the median was 1.09.


Eiso Enterprise Co  (ROCO:5291) 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.

Eiso Enterprise Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=54.70/25.64
=2.13

* 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 Eiso Enterprise Co was 2.98. The lowest was 0.85. And the median was 1.09.


Be Aware

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


Eiso Enterprise Co Cyclically Adjusted Book per Share Related Terms


Eiso Enterprise Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Eiso Enterprise 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.

Eiso Enterprise Co Cyclically Adjusted Book per Share Chart

Eiso Enterprise 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 24.28 25.07 25.45 25.64

Eiso Enterprise 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 25.45 25.64 25.76 25.81 25.64

ROCO:5291 vs APH, GLW: Cyclically Adjusted Book per Share Comparison

For the Electronic Components subindustry, Eiso Enterprise 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.


Eiso Enterprise Co Cyclically Adjusted PB Ratio vs Hardware Industry

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

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


ROCO:5291
59GF Score
Eiso Enterprise Co Ltd ROCO:5291
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Eiso Enterprise 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, Eiso Enterprise 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)
=23.286/324.0540*324.0540
=23.286

Current CPI (Dec. 2025) = 324.0540.

Eiso Enterprise Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 20.318 238.132 27.649
201606 20.000 241.018 26.890
201609 19.463 241.428 26.124
201612 19.690 241.432 26.428
201703 19.229 243.801 25.559
201706 19.606 244.955 25.937
201709 19.552 246.819 25.670
201712 18.730 246.524 24.620
201803 18.730 249.554 24.322
201806 19.175 251.989 24.659
201809 19.723 252.439 25.318
201812 20.055 251.233 25.868
201903 20.407 254.202 26.015
201906 20.071 256.143 25.392
201909 20.855 256.759 26.321
201912 20.931 256.974 26.395
202003 21.236 258.115 26.661
202006 20.566 257.797 25.852
202009 20.888 260.280 26.006
202012 21.035 260.474 26.170
202103 21.783 264.877 26.650
202106 22.990 271.696 27.420
202109 23.067 274.310 27.250
202112 23.999 278.802 27.894
202203 23.097 287.504 26.033
202206 24.311 296.311 26.587
202209 25.558 296.808 27.904
202212 26.019 296.797 28.409
202303 23.586 301.836 25.322
202306 23.745 305.109 25.219
202309 23.698 307.789 24.950
202312 23.553 306.746 24.882
202403 23.397 312.332 24.275
202406 23.317 314.175 24.050
202409 23.205 315.301 23.849
202412 23.267 315.605 23.890
202503 23.310 319.799 23.620
202506 22.924 322.561 23.030
202509 23.177 324.800 23.124
202512 23.286 324.054 23.286

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$25.64 mean?
Eiso Enterprise Co (ROCO:5291) has a Cyclically Adjusted Book per Share of NT$25.64 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 Eiso Enterprise Co and its competitors.
Is Eiso Enterprise Co's Cyclically Adjusted Book per Share too high?
Eiso Enterprise Co's current Cyclically Adjusted Book per Share is NT$25.64. Overall, Eiso Enterprise Co has a GF Score™ of 59/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Eiso Enterprise Co's Cyclically Adjusted Book per Share compare to APH and GLW?
Eiso Enterprise Co's Cyclically Adjusted Book per Share of NT$25.64 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 Eiso Enterprise Co and its competitors. Eiso Enterprise Co's current Cyclically Adjusted Book per Share is NT$25.64. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Eiso Enterprise Co stock overvalued right now?
Based on GuruFocus' analysis, Eiso Enterprise Co (ROCO:5291) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$25.87, compared to a current price of NT$54.70 — trading 111.4% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$25.64. Eiso Enterprise Co's overall GF Score™ is 59/100 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 Eiso Enterprise Co (ROCO:5291), the current Cyclically Adjusted Book per Share is NT$25.64 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 Eiso Enterprise Co (ROCO:5291) Overvalued in 2026?

Based on GuruFocus' analysis, Eiso Enterprise Co stock appears to be overvalued. The current stock price of NT$54.70 is trading 111.4% above its estimated GF Value™ of NT$25.87. GuruFocus considers Eiso Enterprise Co to be Significantly Overvalued.

Key valuation signals for ROCO:5291:

  • Cyclically Adjusted Book per Share: NT$25.64
  • GF Value™: NT$25.87 vs. price of NT$54.70 (111.4% above fair value)
  • GF Score™: 59/100 with 6 warning signs

No single metric tells the full story. See the ROCO:5291 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Eiso Enterprise Co Business Description

Address Number 2, Zhonghua Lane, Shanying Road, Shanfengli, Guishan District, Taoyuan, TWN
Eiso Enterprise Co Ltd is a Taiwan-based company involved in the development of printed circuit boards and high-precision production equipment. The company is also engaged in manufacturing LED products.
59GF Score

Get the complete analysis for ROCO:5291

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

NT$54.70
Price
NT$25.87
GF Value