Siltronic AG (FRA:WAF) Cyclically Adjusted Book per Share: €47.24 (As of Jun. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

FRA:WAF Siltronic AG FRA:WAF
77 GF Score
Price €77.40
GF Value €54.79
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Siltronic AG Cyclically Adjusted Book per Share?

Siltronic AG FRA:WAF -1.53% 77 Cyclically Adjusted Book per Share is €47.24 as of Jun. 2026. GuruFocus rates FRA:WAF with a GF Score™ of 77/100 and a GF Value™ of €54.79 (Significantly Overvalued). The stock has 6 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.

Siltronic AG's adjusted book value per share for the three months ended in Jun. 2026 was €61.748. 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 €47.24 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Siltronic AG's average Cyclically Adjusted Book Growth Rate was 12.60% 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.

As of today (2026-08-07), Siltronic AG's current stock price is €77.40. Siltronic AG's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €47.24. Siltronic AG's Cyclically Adjusted PB Ratio of today is 1.64.

During the past 12 years, the highest Cyclically Adjusted PB Ratio of Siltronic AG was 2.33. The lowest was 0.80. And the median was 1.24.


Siltronic AG  (FRA:WAF) 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.

Siltronic AG's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=77.40/47.24
=1.64

* 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 12 years, the highest Cyclically Adjusted PB Ratio of Siltronic AG was 2.33. The lowest was 0.80. And the median was 1.24.


Be Aware

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


Siltronic AG Cyclically Adjusted Book per Share Related Terms


Siltronic AG Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Siltronic AG'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.

Siltronic AG Cyclically Adjusted Book per Share Chart

Siltronic AG 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 0.00 0.00 0.00 40.10 41.87

Siltronic AG 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 42.72 41.53 41.87 46.73 47.24

FRA:WAF vs NVDA, AVGO, MU: Cyclically Adjusted Book per Share Comparison

For the Semiconductors subindustry, Siltronic AG'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.


Siltronic AG Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


FRA:WAF
77GF Score
Siltronic AG FRA:WAF
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Siltronic AG 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, Siltronic AG'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)
=61.748/131.3638*131.3638
=61.748

Current CPI (Jun. 2026) = 131.3638.

Siltronic AG Quarterly Data

Book Value per Share CPI Adj_Book
201609 10.123 101.017 13.164
201612 14.397 101.217 18.685
201703 16.047 101.417 20.785
201706 17.563 102.117 22.593
201709 19.687 102.717 25.177
201712 21.243 102.617 27.194
201803 23.437 102.917 29.915
201806 23.643 104.017 29.859
201809 27.403 104.718 34.376
201812 29.573 104.217 37.276
201903 31.057 104.217 39.147
201906 25.283 105.718 31.416
201909 25.097 106.018 31.097
201912 28.833 105.818 35.794
202003 32.060 105.718 39.837
202006 26.353 106.618 32.470
202009 25.060 105.818 31.110
202012 26.203 105.518 32.621
202103 32.730 107.518 39.989
202106 32.633 108.486 39.515
202109 35.907 109.435 43.102
202112 39.663 110.384 47.202
202203 47.800 113.968 55.096
202206 55.107 115.760 62.535
202209 59.653 118.818 65.952
202212 62.833 119.345 69.161
202303 64.400 122.402 69.115
202306 62.160 123.140 66.311
202309 64.557 124.195 68.284
202312 63.480 123.773 67.373
202403 65.167 125.038 68.464
202406 65.040 125.882 67.873
202409 66.283 126.198 68.996
202412 66.997 127.041 69.277
202503 65.893 127.779 67.742
202506 64.553 128.412 66.037
202509 62.600 129.255 63.621
202512 61.467 129.361 62.419
202603 60.540 131.258 60.589
202606 61.748 131.364 61.748

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 €47.24 mean?
Siltronic AG (FRA:WAF) has a Cyclically Adjusted Book per Share of €47.24 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 Siltronic AG and its competitors.
Is Siltronic AG's Cyclically Adjusted Book per Share too high?
Siltronic AG's current Cyclically Adjusted Book per Share is €47.24. Overall, Siltronic AG has a GF Score™ of 77/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Siltronic AG's Cyclically Adjusted Book per Share compare to NVDA and AVGO?
Siltronic AG's Cyclically Adjusted Book per Share of €47.24 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 Siltronic AG and its competitors. Siltronic AG's current Cyclically Adjusted Book per Share is €47.24. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Siltronic AG stock overvalued right now?
Based on GuruFocus' analysis, Siltronic AG (FRA:WAF) is currently considered Significantly Overvalued. The stock's GF Value™ is €54.79, compared to a current price of €77.40 — trading 41.3% above its estimated fair value. The current Cyclically Adjusted Book per Share is €47.24. Siltronic AG's overall GF Score™ is 77/100 with 6 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 Siltronic AG (FRA:WAF), the current Cyclically Adjusted Book per Share is €47.24 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 Siltronic AG (FRA:WAF) Overvalued in 2026?

Based on GuruFocus' analysis, Siltronic AG stock appears to be overvalued. The current stock price of €77.40 is trading 41.3% above its estimated GF Value™ of €54.79. GuruFocus considers Siltronic AG to be Significantly Overvalued.

Key valuation signals for FRA:WAF:

  • Cyclically Adjusted Book per Share: €47.24
  • GF Value™: €54.79 vs. price of €77.40 (41.3% above fair value)
  • GF Score™: 77/100 with 6 warning signs

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


Siltronic AG Business Description

Address Einsteinstrassee 172, Munich, BY, DEU, 81677
Siltronic AG is engaged in the development, production, and marketing of semiconductor wafers. The company has production facilities in Asia, Europe, and the USA. The company offers Annealed Wafers, Floatzone, Power products, and Ultimate Silicon. Its geographic segments consist of Germany; Europe excluding Germany; the United States; Taiwan & (mainland) China; South Korea, and Asia excluding Taiwan, and (mainland) China.
77GF Score

Get the complete analysis for FRA:WAF

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

€77.40
Price
€54.79
GF Value