Realtek Semiconductor (LUX:RTKSM) Cyclically Adjusted Book per Share: $6.94 (As of Jun. 2026)

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LUX:RTKSM Realtek Semiconductor Corp LUX:RTKSM
84 GF Score
Price $70.00
GF Value $59.39
! 4 Warning Signs
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What is Realtek Semiconductor Cyclically Adjusted Book per Share?

Realtek Semiconductor LUX:RTKSM 84 Cyclically Adjusted Book per Share is $6.94 as of Jun. 2026. GuruFocus rates LUX:RTKSM with a GF Score™ of 84/100 and a GF Value™ of $59.39. The stock has 4 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.

Realtek Semiconductor's adjusted book value per share for the three months ended in Jun. 2026 was $12.440. 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 $6.94 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Realtek Semiconductor's average Cyclically Adjusted Book Growth Rate was 8.40% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 8.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 10.70% 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 Realtek Semiconductor was 12.20% per year. The lowest was 6.90% per year. And the median was 10.40% per year.

As of today (2026-08-21), Realtek Semiconductor's current stock price is $70.00. Realtek Semiconductor's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $6.94. Realtek Semiconductor's Cyclically Adjusted PB Ratio of today is 10.09.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Realtek Semiconductor was 12.35. The lowest was 3.30. And the median was 7.10.


Realtek Semiconductor  (LUX:RTKSM) 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.

Realtek Semiconductor's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=70.00/6.94
=10.09

* 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 Realtek Semiconductor was 12.35. The lowest was 3.30. And the median was 7.10.


Be Aware

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


Realtek Semiconductor Cyclically Adjusted Book per Share Related Terms


Realtek Semiconductor Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Realtek Semiconductor'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.

Realtek Semiconductor Cyclically Adjusted Book per Share Chart

Realtek Semiconductor 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 7.44 7.72 8.44 8.70 10.87

Realtek Semiconductor Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 9.10 9.55 10.87 11.42 6.94

LUX:RTKSM vs NVDA, AVGO, MU: Cyclically Adjusted Book per Share Comparison

For the Semiconductors subindustry, Realtek Semiconductor'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.


Realtek Semiconductor Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


LUX:RTKSM
84GF Score
Realtek Semiconductor Corp LUX:RTKSM
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Realtek Semiconductor 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, Realtek Semiconductor'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)
=12.44/333.9520*333.9520
=12.440

Current CPI (Jun. 2026) = 333.9520.

Realtek Semiconductor Quarterly Data

Book Value per Share CPI Adj_Book
201609 5.417 241.428 7.493
201612 5.648 241.432 7.812
201703 5.609 243.801 7.683
201706 5.311 244.955 7.241
201709 5.638 246.819 7.628
201712 5.760 246.524 7.803
201803 6.048 249.554 8.093
201806 5.790 251.989 7.673
201809 6.022 252.439 7.967
201812 6.301 251.233 8.376
201903 6.672 254.202 8.765
201906 6.230 256.143 8.122
201909 6.747 256.759 8.775
201912 7.082 256.974 9.203
202003 7.547 258.115 9.764
202006 6.641 257.797 8.603
202009 7.371 260.280 9.457
202012 8.182 260.474 10.490
202103 9.176 264.877 11.569
202106 8.290 271.696 10.190
202109 9.770 274.310 11.894
202112 10.993 278.802 13.168
202203 12.745 287.504 14.804
202206 10.172 296.311 11.464
202209 11.627 296.808 13.082
202212 11.896 296.797 13.385
202303 12.284 301.836 13.591
202306 9.588 305.109 10.494
202309 10.337 307.789 11.216
202312 10.539 306.746 11.474
202403 11.709 312.332 12.520
202406 10.797 314.175 11.477
202409 11.707 315.301 12.400
202412 12.677 315.605 13.414
202503 10.728 319.799 11.203
202506 11.396 322.561 11.798
202509 12.184 324.800 12.527
202512 12.919 324.054 13.314
202603 11.062 330.213 11.187
202606 12.440 333.952 12.440

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 $6.94 mean?
Realtek Semiconductor (LUX:RTKSM) has a Cyclically Adjusted Book per Share of $6.94 as of Jun. 2026. 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 Realtek Semiconductor and its competitors.
Is Realtek Semiconductor's Cyclically Adjusted Book per Share too high?
Realtek Semiconductor's current Cyclically Adjusted Book per Share is $6.94. Overall, Realtek Semiconductor has a GF Score™ of 84/100, reflecting its overall financial health beyond just this single metric.
How does Realtek Semiconductor's Cyclically Adjusted Book per Share compare to NVDA and AVGO?
Realtek Semiconductor's Cyclically Adjusted Book per Share of $6.94 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 Realtek Semiconductor and its competitors. Realtek Semiconductor's current Cyclically Adjusted Book per Share is $6.94. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Realtek Semiconductor stock overvalued right now?
Realtek Semiconductor (LUX:RTKSM) has a current Cyclically Adjusted Book per Share of $6.94. The stock's GF Value™ is $59.39, compared to a current price of $70.00 — trading 17.9% above its estimated fair value. The current Cyclically Adjusted Book per Share is $6.94. Realtek Semiconductor's overall GF Score™ is 84/100 with 4 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 Realtek Semiconductor (LUX:RTKSM), the current Cyclically Adjusted Book per Share is $6.94 as of Jun. 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 Realtek Semiconductor (LUX:RTKSM) Overvalued in 2026?

Based on GuruFocus' analysis, Realtek Semiconductor stock appears to be overvalued. The current stock price of $70.00 is trading 17.9% above its estimated GF Value™ of $59.39.

Key valuation signals for LUX:RTKSM:

  • Cyclically Adjusted Book per Share: $6.94
  • GF Value™: $59.39 vs. price of $70.00 (17.9% above fair value)
  • GF Score™: 84/100 with 4 warning signs

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


Realtek Semiconductor Business Description

Other Exchanges 2379:Taiwan
Address No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu, TWN, 300
Realtek Semiconductor Corp is engaged in researching, developing, manufacturing, and selling various integrated circuits and related application software. The products of the company include Connected Media ICs, Communications Network ICs, Computer Peripheral ICs, Multimedia ICs, Smart Interconnect ICs and others. The company derives maximum revenue from the Asian region followed by Taiwan.
84GF Score

Get the complete analysis for LUX:RTKSM

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

$70.00
Price
$59.39
GF Value