E&R Engineering (ROCO:8027) Cyclically Adjusted Book per Share: NT$23.14 (As of Jun. 2026)

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ROCO:8027 E&R Engineering Corp ROCO:8027
51 GF Score
Price NT$185.00
GF Value NT$117.36
Valuation Significantly Overvalued
! 3 Warning Signs
View Full Analysis

What is E&R Engineering Cyclically Adjusted Book per Share?

E&R Engineering ROCO:8027 +3.06% 51 Cyclically Adjusted Book per Share is NT$23.14 as of Jun. 2026. GuruFocus rates ROCO:8027 with a GF Score™ of 51/100 and a GF Value™ of NT$117.36 (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.

E&R Engineering's adjusted book value per share for the three months ended in Jun. 2026 was NT$26.851. 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$23.14 for the trailing ten years ended in Jun. 2026.

During the past 12 months, E&R Engineering's average Cyclically Adjusted Book Growth Rate was 6.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 7.10% 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 E&R Engineering was 7.10% per year. The lowest was 7.10% per year. And the median was 7.10% per year.

As of today (2026-09-02), E&R Engineering's current stock price is NT$185.00. E&R Engineering's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was NT$23.14. E&R Engineering's Cyclically Adjusted PB Ratio of today is 7.99.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of E&R Engineering was 12.94. The lowest was 2.37. And the median was 4.03.


E&R Engineering  (ROCO:8027) 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.

E&R Engineering's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=185.00/23.14
=7.99

* 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 E&R Engineering was 12.94. The lowest was 2.37. And the median was 4.03.


Be Aware

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


E&R Engineering Cyclically Adjusted Book per Share Related Terms


E&R Engineering Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for E&R Engineering'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.

E&R Engineering Cyclically Adjusted Book per Share Chart

E&R Engineering 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 17.96 19.53 20.94 22.04

E&R Engineering 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 21.69 21.95 22.04 22.65 23.14

ROCO:8027 vs GEV, ETN, PH: Cyclically Adjusted Book per Share Comparison

For the Specialty Industrial Machinery subindustry, E&R Engineering'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.


E&R Engineering Cyclically Adjusted PB Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, E&R Engineering's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where E&R Engineering's Cyclically Adjusted PB Ratio falls into.


ROCO:8027
51GF Score
E&R Engineering Corp ROCO:8027
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

E&R Engineering 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, E&R Engineering'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)
=26.851/333.9520*333.9520
=26.851

Current CPI (Jun. 2026) = 333.9520.

E&R Engineering Quarterly Data

Book Value per Share CPI Adj_Book
201609 12.222 241.428 16.906
201612 11.500 241.432 15.907
201703 13.564 243.801 18.580
201706 13.118 244.955 17.884
201709 14.133 246.819 19.122
201712 13.743 246.524 18.617
201803 13.729 249.554 18.372
201806 14.427 251.989 19.120
201809 14.398 252.439 19.047
201812 14.516 251.233 19.295
201903 14.301 254.202 18.788
201906 14.481 256.143 18.880
201909 13.765 256.759 17.903
201912 13.228 256.974 17.191
202003 13.004 258.115 16.825
202006 13.832 257.797 17.918
202009 15.945 260.280 20.458
202012 16.943 260.474 21.723
202103 18.351 264.877 23.137
202106 18.568 271.696 22.823
202109 23.616 274.310 28.751
202112 23.924 278.802 28.656
202203 23.610 287.504 27.424
202206 25.408 296.311 28.636
202209 27.046 296.808 30.431
202212 25.779 296.797 29.006
202303 24.358 301.836 26.950
202306 23.511 305.109 25.734
202309 24.106 307.789 26.155
202312 24.070 306.746 26.205
202403 25.735 312.332 27.516
202406 26.145 314.175 27.791
202409 27.131 315.301 28.736
202412 27.160 315.605 28.739
202503 26.142 319.799 27.299
202506 24.324 322.561 25.183
202509 24.155 324.800 24.836
202512 25.203 324.054 25.973
202603 26.072 330.213 26.367
202606 26.851 333.952 26.851

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$23.14 mean?
E&R Engineering (ROCO:8027) has a Cyclically Adjusted Book per Share of NT$23.14 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 E&R Engineering and its competitors.
Is E&R Engineering's Cyclically Adjusted Book per Share too high?
E&R Engineering's current Cyclically Adjusted Book per Share is NT$23.14. Overall, E&R Engineering has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does E&R Engineering's Cyclically Adjusted Book per Share compare to GEV and ETN?
E&R Engineering's Cyclically Adjusted Book per Share of NT$23.14 can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good Cyclically Adjusted Book per Share depends on the Industrial Products 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 E&R Engineering and its competitors. E&R Engineering's current Cyclically Adjusted Book per Share is NT$23.14. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is E&R Engineering stock overvalued right now?
Based on GuruFocus' analysis, E&R Engineering (ROCO:8027) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$117.36, compared to a current price of NT$185.00 — trading 57.6% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$23.14. E&R Engineering's overall GF Score™ is 51/100 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 E&R Engineering (ROCO:8027), the current Cyclically Adjusted Book per Share is NT$23.14 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 E&R Engineering (ROCO:8027) Overvalued in 2026?

Based on GuruFocus' analysis, E&R Engineering stock appears to be overvalued. The current stock price of NT$185.00 is trading 57.6% above its estimated GF Value™ of NT$117.36. GuruFocus considers E&R Engineering to be Significantly Overvalued.

Key valuation signals for ROCO:8027:

  • Cyclically Adjusted Book per Share: NT$23.14
  • GF Value™: NT$117.36 vs. price of NT$185.00 (57.6% above fair value)
  • GF Score™: 51/100 with 3 warning signs

No single metric tells the full story. See the ROCO:8027 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


E&R Engineering Business Description

Address Hengshan Road, No. 61, Yanchao District, Kaohsiung, TWN, 824
E&R Engineering Corp engages mainly in the planning, designing, manufacturing, installing, and selling of automatic machines, related components, computer software, and pollution control equipment. Its main product offerings include laser and plasma equipment for semiconductor, LED, and passive component industries; laboratory testing equipment, flexible printed circuit equipment, and semiconductor packaging solutions. The Group operates in the following reportable segments: Automation Equipment, which generates the maximum revenue, Flexible Printed Circuit (FPC), Semiconductor Packaging Materials, and Others. Geographically, it generates maximum revenue from Taiwan, and the rest from Hong Kong and Mainland China, Southeast Asia, America, Europe, and other regions.
51GF Score

Get the complete analysis for ROCO:8027

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

NT$185.00
Price
NT$117.36
GF Value