Prolific Technology (ROCO:6233) Cyclically Adjusted Book per Share: NT$14.51 (As of Dec. 2025)

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ROCO:6233 Prolific Technology Inc ROCO:6233
68 GF Score
Price NT$24.55
GF Value NT$24.03
Valuation Fairly Valued
! 2 Warning Signs
View Full Analysis

What is Prolific Technology Cyclically Adjusted Book per Share?

Prolific Technology ROCO:6233 +4.47% 68 Cyclically Adjusted Book per Share is NT$14.51 as of Dec. 2025. GuruFocus rates ROCO:6233 with a GF Score™ of 68/100 and a GF Value™ of NT$24.03 (Fairly Valued). The stock has 2 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.

Prolific Technology's adjusted book value per share for the three months ended in Dec. 2025 was NT$17.205. 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$14.51 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Prolific Technology's average Cyclically Adjusted Book Growth Rate was 1.80% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -0.80% 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 Prolific Technology was 1.00% per year. The lowest was -0.80% per year. And the median was -0.45% per year.

As of today (2026-07-15), Prolific Technology's current stock price is NT$24.55. Prolific Technology's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$14.51. Prolific Technology's Cyclically Adjusted PB Ratio of today is 1.69.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Prolific Technology was 3.52. The lowest was 0.47. And the median was 1.75.


Prolific Technology  (ROCO:6233) 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.

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

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=24.55/14.51
=1.69

* 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 Prolific Technology was 3.52. The lowest was 0.47. And the median was 1.75.


Be Aware

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


Prolific Technology Cyclically Adjusted Book per Share Related Terms


Prolific Technology Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Prolific Technology'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.

Prolific Technology Cyclically Adjusted Book per Share Chart

Prolific Technology 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 14.52 14.88 14.07 14.26 14.51

Prolific Technology 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 14.26 14.39 14.46 14.53 14.51

ROCO:6233 vs NVDA, AVGO, MU: Cyclically Adjusted Book per Share Comparison

For the Semiconductors subindustry, Prolific Technology'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.


Prolific Technology Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


ROCO:6233
68GF Score
Prolific Technology Inc ROCO:6233
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Prolific Technology 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, Prolific Technology'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)
=17.205/324.0540*324.0540
=17.205

Current CPI (Dec. 2025) = 324.0540.

Prolific Technology Quarterly Data

Book Value per Share CPI Adj_Book
201603 11.425 238.132 15.547
201606 11.185 241.018 15.038
201609 10.900 241.428 14.630
201612 11.135 241.432 14.946
201703 10.781 243.801 14.330
201706 10.702 244.955 14.158
201709 10.682 246.819 14.025
201712 10.817 246.524 14.219
201803 10.666 249.554 13.850
201806 10.792 251.989 13.878
201809 10.564 252.439 13.561
201812 10.098 251.233 13.025
201903 10.508 254.202 13.395
201906 10.586 256.143 13.393
201909 10.843 256.759 13.685
201912 11.087 256.974 13.981
202003 10.915 258.115 13.703
202006 11.221 257.797 14.105
202009 11.202 260.280 13.947
202012 11.280 260.474 14.033
202103 11.602 264.877 14.194
202106 11.830 271.696 14.110
202109 12.001 274.310 14.177
202112 12.426 278.802 14.443
202203 12.739 287.504 14.358
202206 12.533 296.311 13.706
202209 12.852 296.808 14.032
202212 13.142 296.797 14.349
202303 13.929 301.836 14.954
202306 14.059 305.109 14.932
202309 13.946 307.789 14.683
202312 13.685 306.746 14.457
202403 15.752 312.332 16.343
202406 16.296 314.175 16.808
202409 15.655 315.301 16.090
202412 15.205 315.605 15.612
202503 14.931 319.799 15.130
202506 14.390 322.561 14.457
202509 15.137 324.800 15.102
202512 17.205 324.054 17.205

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$14.51 mean?
Prolific Technology (ROCO:6233) has a Cyclically Adjusted Book per Share of NT$14.51 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 Prolific Technology and its competitors.
Is Prolific Technology's Cyclically Adjusted Book per Share too high?
Prolific Technology's current Cyclically Adjusted Book per Share is NT$14.51. Overall, Prolific Technology has a GF Score™ of 68/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Prolific Technology's Cyclically Adjusted Book per Share compare to NVDA and AVGO?
Prolific Technology's Cyclically Adjusted Book per Share of NT$14.51 can be compared against companies in the Semiconductors 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 Semiconductors company?
A good Cyclically Adjusted Book per Share depends on the Semiconductors 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 Prolific Technology and its competitors. Prolific Technology's current Cyclically Adjusted Book per Share is NT$14.51. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Prolific Technology stock overvalued right now?
Based on GuruFocus' analysis, Prolific Technology (ROCO:6233) is currently considered Fairly Valued. The stock's GF Value™ is NT$24.03, compared to a current price of NT$24.55 — trading 2.2% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$14.51. Prolific Technology's overall GF Score™ is 68/100 with 2 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 Prolific Technology (ROCO:6233), the current Cyclically Adjusted Book per Share is NT$14.51 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 Prolific Technology (ROCO:6233) Overvalued in 2026?

Based on GuruFocus' analysis, Prolific Technology stock appears to be overvalued. The current stock price of NT$24.55 is trading 2.2% above its estimated GF Value™ of NT$24.03. GuruFocus considers Prolific Technology to be Fairly Valued.

Key valuation signals for ROCO:6233:

  • Cyclically Adjusted Book per Share: NT$14.51
  • GF Value™: NT$24.03 vs. price of NT$24.55 (2.2% above fair value)
  • GF Score™: 68/100 with 2 warning signs

No single metric tells the full story. See the ROCO:6233 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Prolific Technology Business Description

Address No. 48, Section 3, Nangang Road, 7th floor, Nangang District, Taipei, TWN, 115
Prolific Technology Inc is engaged in research, development, design, and sales of IC (Integrated Circuit) products for data communication and connectivity applications in Taiwan. It is a provider of USB Smart I/O, Intelligent Green Energy Saving, and Mixed-Mode Hall Sensor solutions. The company is a pioneer in providing IC and SOC solutions for USB Serial/Parallel converters, USB Storage products, Brushless Motor drivers, Hall sensors, Power Meters, and MEMS Motion Sensing products.
68GF Score

Get the complete analysis for ROCO:6233

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

NT$24.55
Price
NT$24.03
GF Value