RDC Semiconductor Co (ROCO:3228) Cyclically Adjusted PB Ratio: 18.53 (As of Sep. 06, 2026) — 14% Below Median

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ROCO:3228 RDC Semiconductor Co Ltd ROCO:3228
64 GF Score
Price NT$174.00
GF Value NT$150.15
Valuation Modestly Overvalued
! 2 Warning Signs
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What is RDC Semiconductor Co Cyclically Adjusted PB Ratio?

RDC Semiconductor Co ROCO:3228 +1.75% 64 Cyclically Adjusted PB Ratio is 18.53 as of Sep. 06, 2026, which is 14% below its 10-year median of 21.51. GuruFocus rates ROCO:3228 with a GF Score™ of 64/100 and a GF Value™ of NT$150.15 (Modestly Overvalued). The stock has 2 warning signs investors should review. Among 725 Semiconductors companies, RDC Semiconductor Co ranks worse than 92.14% on this metric.

As of today (2026-09-06), RDC Semiconductor Co's current share price is NT$174.00. RDC Semiconductor Co's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was NT$9.39. RDC Semiconductor Co's Cyclically Adjusted PB Ratio for today is 18.53.

The historical rank and industry rank for RDC Semiconductor Co's Cyclically Adjusted PB Ratio or its related term are showing as below:

ROCO:3228' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 2.95   Med: 21.51   Max: 71.37
Current: 18.53

During the past years, RDC Semiconductor Co's highest Cyclically Adjusted PB Ratio was 71.37. The lowest was 2.95. And the median was 21.51.

ROCO:3228's Cyclically Adjusted PB Ratio is ranked worse than
92.14% of 725 companies
in the Semiconductors industry
Industry Median: 3.15 vs ROCO:3228: 18.53

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.

RDC Semiconductor Co's adjusted book value per share data for the three months ended in Jun. 2026 was NT$9.461. 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$9.39 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


RDC Semiconductor Co  (ROCO:3228) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


RDC Semiconductor Co Cyclically Adjusted PB Ratio Related Terms


RDC Semiconductor Co Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for RDC Semiconductor Co's Cyclically Adjusted PB Ratio 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.

RDC Semiconductor Co Cyclically Adjusted PB Ratio Chart

RDC Semiconductor Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 57.93 20.77 32.41 22.70 13.67

RDC Semiconductor Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PB Ratio 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 18.28 17.21 13.67 14.32 19.11

ROCO:3228 vs NVDA, AVGO, MU: Cyclically Adjusted PB Ratio Comparison

For the Semiconductors subindustry, RDC Semiconductor 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.


RDC Semiconductor Co Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


ROCO:3228
64GF Score
RDC Semiconductor Co Ltd ROCO:3228
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

RDC Semiconductor Co Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

RDC Semiconductor Co's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=174.00/9.39
=18.53

* 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.

RDC Semiconductor Co's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, RDC Semiconductor Co'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)
=9.461/333.9520*333.9520
=9.461

Current CPI (Jun. 2026) = 333.9520.

RDC Semiconductor Co Quarterly Data

Book Value per Share CPI Adj_Book
201609 5.940 241.428 8.216
201612 5.826 241.432 8.059
201703 6.323 243.801 8.661
201706 6.127 244.955 8.353
201709 5.992 246.819 8.107
201712 5.813 246.524 7.875
201803 6.265 249.554 8.384
201806 6.683 251.989 8.857
201809 6.531 252.439 8.640
201812 6.545 251.233 8.700
201903 6.447 254.202 8.470
201906 6.251 256.143 8.150
201909 5.889 256.759 7.659
201912 5.970 256.974 7.758
202003 5.989 258.115 7.749
202006 5.722 257.797 7.412
202009 5.971 260.280 7.661
202012 6.957 260.474 8.920
202103 8.289 264.877 10.451
202106 9.631 271.696 11.838
202109 9.511 274.310 11.579
202112 9.799 278.802 11.737
202203 10.764 287.504 12.503
202206 10.907 296.311 12.293
202209 10.710 296.808 12.050
202212 10.323 296.797 11.615
202303 9.970 301.836 11.031
202306 9.544 305.109 10.446
202309 9.189 307.789 9.970
202312 8.295 306.746 9.031
202403 8.520 312.332 9.110
202406 8.995 314.175 9.561
202409 8.476 315.301 8.977
202412 9.273 315.605 9.812
202503 8.770 319.799 9.158
202506 8.173 322.561 8.462
202509 9.928 324.800 10.208
202512 9.414 324.054 9.702
202603 8.912 330.213 9.013
202606 9.461 333.952 9.461

Add all the adjusted book value per share together and divide the count will get our 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.

What does a Cyclically Adjusted PB Ratio of 18.53 mean?
RDC Semiconductor Co (ROCO:3228) has a Cyclically Adjusted PB Ratio of 18.53 as of Sep. 06, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on RDC Semiconductor Co and its competitors. This is 14% below median its historical median of 21.51. Over the past decade, RDC Semiconductor Co's Cyclically Adjusted PB Ratio has ranged from 2.95 to 71.37. According to the industry distribution chart, RDC Semiconductor Co ranks #668 out of 725 companies in the Semiconductors industry, placing it in the top 92.1%.
Is RDC Semiconductor Co's Cyclically Adjusted PB Ratio too high?
RDC Semiconductor Co's current Cyclically Adjusted PB Ratio of 18.53 is 14% below median its 10-year median of 21.51. Over the past 10 years, this metric has ranged from a low of 2.95 to a high of 71.37. The Semiconductors industry median Cyclically Adjusted PB Ratio is 3.15. RDC Semiconductor Co's value of 18.53 is 488.3% above this industry median. Based on the distribution chart, RDC Semiconductor Co ranks #668 out of 725 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, RDC Semiconductor Co has a GF Score™ of 64/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does RDC Semiconductor Co's Cyclically Adjusted PB Ratio compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, RDC Semiconductor Co ranks #668 out of 725 companies for Cyclically Adjusted PB Ratio. This places RDC Semiconductor Co in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 3.15. RDC Semiconductor Co's value of 18.53 is 488.3% above this benchmark. Historically, RDC Semiconductor Co's own Cyclically Adjusted PB Ratio has ranged from 2.95 to 71.37 over the past decade. While the company's 10-year median is 21.51 vs. the industry median of 3.15, RDC Semiconductor Co has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for a Semiconductors company?
The median Cyclically Adjusted PB Ratio among Semiconductors companies is 3.15, based on 725 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. RDC Semiconductor Co's current Cyclically Adjusted PB Ratio of 18.53 is 488.3% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on RDC Semiconductor Co and its competitors. For the Semiconductors industry, the median Cyclically Adjusted PB Ratio is 3.15 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. RDC Semiconductor Co's current Cyclically Adjusted PB Ratio is 18.53, which is 14% below median its own 10-year median of 21.51. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is RDC Semiconductor Co stock overvalued right now?
Based on GuruFocus' analysis, RDC Semiconductor Co (ROCO:3228) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$150.15, compared to a current price of NT$174.00 — trading 15.9% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 18.53, which is 14% below median its 10-year median of 21.51 and 488.3% above the Semiconductors industry median of 3.15. RDC Semiconductor Co's overall GF Score™ is 64/100 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 PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For RDC Semiconductor Co (ROCO:3228), the current Cyclically Adjusted PB Ratio is 18.53 as of Sep. 06, 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 RDC Semiconductor Co (ROCO:3228) Overvalued in 2026?

Based on GuruFocus' analysis, RDC Semiconductor Co stock appears to be overvalued. The current stock price of NT$174.00 is trading 15.9% above its estimated GF Value™ of NT$150.15. GuruFocus considers RDC Semiconductor Co to be Modestly Overvalued.

Key valuation signals for ROCO:3228:

  • Cyclically Adjusted PB Ratio: 18.53 (14% below median its 10-year median of 21.51)
  • GF Value™: NT$150.15 vs. price of NT$174.00 (15.9% above fair value)
  • GF Score™: 64/100 with 2 warning signs
  • Industry Position: 488.3% above the Semiconductors median (#668 of 725)

No single metric tells the full story. See the ROCO:3228 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


RDC Semiconductor Co Business Description

Address Lixing Road, 6th Floor-1, No.2-1, Hsinchu Science Park, Hsinchu, TWN, 30078
RDC Semiconductor Co Ltd mainly researches, develops, manufactures, and sells 16-bit and 32-bit microcontrollers, microelectromechanical integrated applications and products, 32-bit and 64-bit microprocessors, IA automated system-on-a-chip (SoC) products, digital system applications products, server and cloud storage system chip products. The products of the company include Processor Platform, MCU & NPU, Low Power SoCs, RDC ASIC Service, and others.
64GF Score

Get the complete analysis for ROCO:3228

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

NT$174.00
Price
NT$150.15
GF Value