Coretronic (ROCO:5371) Cyclically Adjusted Book per Share: NT$63.07 (As of Dec. 2025)

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Director of Data and Quant Analytics at GuruFocus
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ROCO:5371 Coretronic Corp ROCO:5371
63 GF Score
Price NT$89.60
GF Value NT$75.21
Valuation Modestly Overvalued
! 9 Warning Signs
View Full Analysis

What is Coretronic Cyclically Adjusted Book per Share?

Coretronic ROCO:5371 -5.58% 63 Cyclically Adjusted Book per Share is NT$63.07 as of Dec. 2025. GuruFocus rates ROCO:5371 with a GF Score™ of 63/100 and a GF Value™ of NT$75.21 (Modestly Overvalued). The stock has 9 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.

Coretronic's adjusted book value per share for the three months ended in Dec. 2025 was NT$62.723. 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$63.07 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Coretronic's average Cyclically Adjusted Book Growth Rate was 0.50% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 1.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 3.40% 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 Coretronic was 5.00% per year. The lowest was 1.60% per year. And the median was 3.40% per year.

As of today (2026-07-16), Coretronic's current stock price is NT$89.60. Coretronic's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$63.07. Coretronic's Cyclically Adjusted PB Ratio of today is 1.42.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Coretronic was 1.98. The lowest was 0.54. And the median was 1.08.


Coretronic  (ROCO:5371) 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.

Coretronic's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=89.60/63.07
=1.42

* 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 Coretronic was 1.98. The lowest was 0.54. And the median was 1.08.


Be Aware

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


Coretronic Cyclically Adjusted Book per Share Related Terms


Coretronic Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Coretronic'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.

Coretronic Cyclically Adjusted Book per Share Chart

Coretronic 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 56.69 60.13 61.73 62.73 63.07

Coretronic 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 62.73 63.27 63.44 63.48 63.07

ROCO:5371 vs AAPL: Cyclically Adjusted Book per Share Comparison

For the Consumer Electronics subindustry, Coretronic'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.


Coretronic Cyclically Adjusted PB Ratio vs Hardware Industry

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

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


ROCO:5371
63GF Score
Coretronic Corp ROCO:5371
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Coretronic 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, Coretronic'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)
=62.723/324.0540*324.0540
=62.723

Current CPI (Dec. 2025) = 324.0540.

Coretronic Quarterly Data

Book Value per Share CPI Adj_Book
201603 53.482 238.132 72.779
201606 51.286 241.018 68.955
201609 48.586 241.428 65.214
201612 49.797 241.432 66.838
201703 47.961 243.801 63.749
201706 45.965 244.955 60.808
201709 47.739 246.819 62.678
201712 49.565 246.524 65.153
201803 50.866 249.554 66.051
201806 49.143 251.989 63.197
201809 49.357 252.439 63.359
201812 51.114 251.233 65.930
201903 52.626 254.202 67.087
201906 49.385 256.143 62.478
201909 49.263 256.759 62.175
201912 49.222 256.974 62.071
202003 46.788 258.115 58.741
202006 47.289 257.797 59.443
202009 50.086 260.280 62.358
202012 52.703 260.474 65.567
202103 49.857 264.877 60.996
202106 50.905 271.696 60.715
202109 53.503 274.310 63.205
202112 56.658 278.802 65.854
202203 55.777 287.504 62.868
202206 55.050 296.311 60.204
202209 57.627 296.808 62.917
202212 58.135 296.797 63.474
202303 56.232 301.836 60.371
202306 56.628 305.109 60.144
202309 61.282 307.789 64.520
202312 60.065 306.746 63.454
202403 60.082 312.332 62.337
202406 62.195 314.175 64.151
202409 62.611 315.301 64.349
202412 62.399 315.605 64.069
202503 61.534 319.799 62.353
202506 52.737 322.561 52.981
202509 56.537 324.800 56.407
202512 62.723 324.054 62.723

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$63.07 mean?
Coretronic (ROCO:5371) has a Cyclically Adjusted Book per Share of NT$63.07 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 Coretronic and its competitors.
Is Coretronic's Cyclically Adjusted Book per Share too high?
Coretronic's current Cyclically Adjusted Book per Share is NT$63.07. Overall, Coretronic has a GF Score™ of 63/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Coretronic's Cyclically Adjusted Book per Share compare to AAPL?
Coretronic's Cyclically Adjusted Book per Share of NT$63.07 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 Coretronic and its competitors. Coretronic's current Cyclically Adjusted Book per Share is NT$63.07. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Coretronic stock overvalued right now?
Based on GuruFocus' analysis, Coretronic (ROCO:5371) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$75.21, compared to a current price of NT$89.60 — trading 19.1% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$63.07. Coretronic's overall GF Score™ is 63/100 with 9 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 Coretronic (ROCO:5371), the current Cyclically Adjusted Book per Share is NT$63.07 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 Coretronic (ROCO:5371) Overvalued in 2026?

Based on GuruFocus' analysis, Coretronic stock appears to be overvalued. The current stock price of NT$89.60 is trading 19.1% above its estimated GF Value™ of NT$75.21. GuruFocus considers Coretronic to be Modestly Overvalued.

Key valuation signals for ROCO:5371:

  • Cyclically Adjusted Book per Share: NT$63.07
  • GF Value™: NT$75.21 vs. price of NT$89.60 (19.1% above fair value)
  • GF Score™: 63/100 with 9 warning signs

No single metric tells the full story. See the ROCO:5371 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Coretronic Business Description

Address No. 11, Li Hsing Road, East District, Hsinchu, TWN, 300
Coretronic Corp is engaged in the research and development, production, manufacturing and marketing of projectors, backlight, and FPD-related products. Its segments include energy-saving products, image products & brands, and optical components. The company's geographical segments are Mainland China (including Hong Kong), Taiwan, the United States, Japan, South Korea, the United Kingdom, and Others.
63GF Score

Get the complete analysis for ROCO:5371

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

NT$89.60
Price
NT$75.21
GF Value