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RDC Semiconductor Co Ltd ROCO:3228
RDC Semiconductor Co ROCO:3228 55 Cyclically Adjusted PB Ratio is 16.11 as of Aug. 15, 2026, which is 25% below its 10-year median of 21.57. GuruFocus rates ROCO:3228 with a GF Score™ of 55/100 and a GF Value™ of NT$138.83 (Fairly Valued). The stock has 4 warning signs investors should review. Among 727 Semiconductors companies, RDC Semiconductor Co ranks worse than 90.1% on this metric.
As of today (2026-08-15), RDC Semiconductor Co's current share price is NT$149.00. RDC Semiconductor Co's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was NT$9.25. RDC Semiconductor Co's Cyclically Adjusted PB Ratio for today is 16.11.
The historical rank and industry rank for RDC Semiconductor Co's Cyclically Adjusted PB Ratio or its related term are showing as below:
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 21.57.
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 Mar. 2026 was NT$8.912. 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$9.25 for the trailing ten years ended in Mar. 2026.
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.
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 Quarterly Data | ||||||||||||||||||||
| Jun21 | Sep21 | Dec21 | Mar22 | Jun22 | Sep22 | Dec22 | Mar23 | Jun23 | Sep23 | Dec23 | Mar24 | Jun24 | Sep24 | Dec24 | Mar25 | Jun25 | Sep25 | Dec25 | Mar26 | |
| Cyclically Adjusted PB Ratio | Get a 7-Day Free Trial |
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16.26 | 18.28 | 17.21 | 13.67 | 14.32 | ||
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.
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.
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 |
| = | 149.00 | / | 9.25 | |
| = | 16.11 |
* 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 Mar. 2026 is calculated as:
For example, RDC Semiconductor Co's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:
| Adj_Book | = | Book Value per Share | / | CPI of Mar. 2026 (Change) | * | Current CPI (Mar. 2026) |
| = | 8.912 | / | 330.2130 | * | 330.2130 | |
| = | 8.912 |
Current CPI (Mar. 2026) = 330.2130.
RDC Semiconductor Co Quarterly Data
| Book Value per Share | CPI | Adj_Book | |
| 201606 | 5.910 | 241.018 | 8.097 |
| 201609 | 5.940 | 241.428 | 8.124 |
| 201612 | 5.826 | 241.432 | 7.968 |
| 201703 | 6.323 | 243.801 | 8.564 |
| 201706 | 6.127 | 244.955 | 8.260 |
| 201709 | 5.992 | 246.819 | 8.017 |
| 201712 | 5.813 | 246.524 | 7.786 |
| 201803 | 6.265 | 249.554 | 8.290 |
| 201806 | 6.683 | 251.989 | 8.758 |
| 201809 | 6.531 | 252.439 | 8.543 |
| 201812 | 6.545 | 251.233 | 8.603 |
| 201903 | 6.447 | 254.202 | 8.375 |
| 201906 | 6.251 | 256.143 | 8.059 |
| 201909 | 5.889 | 256.759 | 7.574 |
| 201912 | 5.970 | 256.974 | 7.671 |
| 202003 | 5.989 | 258.115 | 7.662 |
| 202006 | 5.722 | 257.797 | 7.329 |
| 202009 | 5.971 | 260.280 | 7.575 |
| 202012 | 6.957 | 260.474 | 8.820 |
| 202103 | 8.289 | 264.877 | 10.334 |
| 202106 | 9.631 | 271.696 | 11.705 |
| 202109 | 9.511 | 274.310 | 11.449 |
| 202112 | 9.799 | 278.802 | 11.606 |
| 202203 | 10.764 | 287.504 | 12.363 |
| 202206 | 10.907 | 296.311 | 12.155 |
| 202209 | 10.710 | 296.808 | 11.915 |
| 202212 | 10.323 | 296.797 | 11.485 |
| 202303 | 9.970 | 301.836 | 10.907 |
| 202306 | 9.544 | 305.109 | 10.329 |
| 202309 | 9.189 | 307.789 | 9.858 |
| 202312 | 8.295 | 306.746 | 8.930 |
| 202403 | 8.520 | 312.332 | 9.008 |
| 202406 | 8.995 | 314.175 | 9.454 |
| 202409 | 8.476 | 315.301 | 8.877 |
| 202412 | 9.273 | 315.605 | 9.702 |
| 202503 | 8.770 | 319.799 | 9.056 |
| 202506 | 8.173 | 322.561 | 8.367 |
| 202509 | 9.928 | 324.800 | 10.093 |
| 202512 | 9.414 | 324.054 | 9.593 |
| 202603 | 8.912 | 330.213 | 8.912 |
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.
Based on GuruFocus' analysis, RDC Semiconductor Co stock appears to be overvalued. The current stock price of NT$149.00 is trading 7.3% above its estimated GF Value™ of NT$138.83. GuruFocus considers RDC Semiconductor Co to be Fairly Valued.
Key valuation signals for ROCO:3228:
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.