Asia Electronic Material Co (ROCO:4939) Cyclically Adjusted Book per Share: NT$17.49 (As of Dec. 2025)

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ROCO:4939 Asia Electronic Material Co Ltd ROCO:4939
47 GF Score
Price NT$60.20
GF Value NT$18.24
Valuation Significantly Overvalued
! 10 Warning Signs
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What is Asia Electronic Material Co Cyclically Adjusted Book per Share?

Asia Electronic Material Co ROCO:4939 -9.88% 47 Cyclically Adjusted Book per Share is NT$17.49 as of Dec. 2025. GuruFocus rates ROCO:4939 with a GF Score™ of 47/100 and a GF Value™ of NT$18.24 (Significantly Overvalued). The stock has 10 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.

Asia Electronic Material Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$13.767. 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$17.49 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Asia Electronic Material Co's average Cyclically Adjusted Book Growth Rate was -1.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 0.40% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 3.10% 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 Asia Electronic Material Co was 5.60% per year. The lowest was 0.40% per year. And the median was 4.25% per year.

As of today (2026-07-19), Asia Electronic Material Co's current stock price is NT$60.20. Asia Electronic Material Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$17.49. Asia Electronic Material Co's Cyclically Adjusted PB Ratio of today is 3.44.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Asia Electronic Material Co was 3.79. The lowest was 0.59. And the median was 1.18.


Asia Electronic Material Co  (ROCO:4939) 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.

Asia Electronic Material Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=60.20/17.49
=3.44

* 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 Asia Electronic Material Co was 3.79. The lowest was 0.59. And the median was 1.18.


Be Aware

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


Asia Electronic Material Co Cyclically Adjusted Book per Share Related Terms


Asia Electronic Material Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Asia Electronic Material 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.

Asia Electronic Material Co Cyclically Adjusted Book per Share Chart

Asia Electronic Material 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 16.25 17.28 17.60 17.69 17.49

Asia Electronic Material 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 17.69 17.76 17.70 17.69 17.49

ROCO:4939 vs APH, GLW: Cyclically Adjusted Book per Share Comparison

For the Electronic Components subindustry, Asia Electronic Material 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.


Asia Electronic Material Co Cyclically Adjusted PB Ratio vs Hardware Industry

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

* The bar in red indicates where Asia Electronic Material Co's Cyclically Adjusted PB Ratio falls into.


ROCO:4939
47GF Score
Asia Electronic Material Co Ltd ROCO:4939
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Asia Electronic Material 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, Asia Electronic Material 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)
=13.767/324.0540*324.0540
=13.767

Current CPI (Dec. 2025) = 324.0540.

Asia Electronic Material Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 12.607 238.132 17.156
201606 12.061 241.018 16.216
201609 11.983 241.428 16.084
201612 12.467 241.432 16.733
201703 12.195 243.801 16.209
201706 12.659 244.955 16.747
201709 13.235 246.819 17.377
201712 13.487 246.524 17.729
201803 15.537 249.554 20.175
201806 15.307 251.989 19.685
201809 15.430 252.439 19.807
201812 15.399 251.233 19.862
201903 15.651 254.202 19.952
201906 15.005 256.143 18.983
201909 14.855 256.759 18.748
201912 14.316 256.974 18.053
202003 14.289 258.115 17.939
202006 14.027 257.797 17.632
202009 14.971 260.280 18.639
202012 16.015 260.474 19.924
202103 16.352 264.877 20.005
202106 16.708 271.696 19.928
202109 15.927 274.310 18.815
202112 16.403 278.802 19.065
202203 17.327 287.504 19.530
202206 15.643 296.311 17.108
202209 15.899 296.808 17.358
202212 15.720 296.797 17.164
202303 15.856 301.836 17.023
202306 15.036 305.109 15.970
202309 15.921 307.789 16.762
202312 15.460 306.746 16.332
202403 16.139 312.332 16.745
202406 15.808 314.175 16.305
202409 15.780 315.301 16.218
202412 15.770 315.605 16.192
202503 16.043 319.799 16.256
202506 12.319 322.561 12.376
202509 13.172 324.800 13.142
202512 13.767 324.054 13.767

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$17.49 mean?
Asia Electronic Material Co (ROCO:4939) has a Cyclically Adjusted Book per Share of NT$17.49 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 Asia Electronic Material Co and its competitors.
Is Asia Electronic Material Co's Cyclically Adjusted Book per Share too high?
Asia Electronic Material Co's current Cyclically Adjusted Book per Share is NT$17.49. Overall, Asia Electronic Material Co has a GF Score™ of 47/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Asia Electronic Material Co's Cyclically Adjusted Book per Share compare to APH and GLW?
Asia Electronic Material Co's Cyclically Adjusted Book per Share of NT$17.49 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 Asia Electronic Material Co and its competitors. Asia Electronic Material Co's current Cyclically Adjusted Book per Share is NT$17.49. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Asia Electronic Material Co stock overvalued right now?
Based on GuruFocus' analysis, Asia Electronic Material Co (ROCO:4939) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$18.24, compared to a current price of NT$60.20 — trading 230% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$17.49. Asia Electronic Material Co's overall GF Score™ is 47/100 with 10 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 Asia Electronic Material Co (ROCO:4939), the current Cyclically Adjusted Book per Share is NT$17.49 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 Asia Electronic Material Co (ROCO:4939) Overvalued in 2026?

Based on GuruFocus' analysis, Asia Electronic Material Co stock appears to be overvalued. The current stock price of NT$60.20 is trading 230% above its estimated GF Value™ of NT$18.24. GuruFocus considers Asia Electronic Material Co to be Significantly Overvalued.

Key valuation signals for ROCO:4939:

  • Cyclically Adjusted Book per Share: NT$17.49
  • GF Value™: NT$18.24 vs. price of NT$60.20 (230% above fair value)
  • GF Score™: 47/100 with 10 warning signs

No single metric tells the full story. See the ROCO:4939 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Asia Electronic Material Co Business Description

Address No. 3, HuanKe 1st Road, 6th Floor-7, Hsinchu County, Zhubei, TWN, 302
Asia Electronic Material Co Ltd is engaged in manufacture of electronic products and sale of electronic materials. Geographically, the company operates in Taiwan, China, and Other Countries, of which it derives maximum revenue from China. it mainly researches, develops, manufactures and markets flexible copper clad laminate (FCCL), coverlay (CL), stiffener and bonding sheet. Its products are used in Mobile phones, smart phones, digital cameras, laptop PCs, tablet PCs, LCD monitors, printer inkjet heads, hard drive heads, a variety of flat panel displays, touch modules, antenna panels, batteries and LED backlight module light bar etc.
47GF Score

Get the complete analysis for ROCO:4939

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

NT$60.20
Price
NT$18.24
GF Value