K+S AG (FRA:SDF1) Cyclically Adjusted Book per Share: €15.22 (As of Jun. 2026)

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FRA:SDF1 K+S AG FRA:SDF1
73 GF Score
Price €7.95
GF Value €6.60
Valuation Modestly Overvalued
! 6 Warning Signs
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What is K+S AG Cyclically Adjusted Book per Share?

K+S AG FRA:SDF1 -1.24% 73 Cyclically Adjusted Book per Share is €15.22 as of Jun. 2026. GuruFocus rates FRA:SDF1 with a GF Score™ of 73/100 and a GF Value™ of €6.60 (Modestly 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.

K+S AG's adjusted book value per share for the three months ended in Jun. 2026 was €15.016. 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 €15.22 for the trailing ten years ended in Jun. 2026.

During the past 12 months, K+S AG's average Cyclically Adjusted Book Growth Rate was 1.50% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 5.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 8.00% 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 K+S AG was 9.70% per year. The lowest was 3.70% per year. And the median was 6.80% per year.

As of today (2026-09-16), K+S AG's current stock price is €7.95. K+S AG's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €15.22. K+S AG's Cyclically Adjusted PB Ratio of today is 0.52.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of K+S AG was 1.53. The lowest was 0.25. And the median was 0.62.


K+S AG  (FRA:SDF1) 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.

K+S AG's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=7.95/15.217
=0.52

* 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 K+S AG was 1.53. The lowest was 0.25. And the median was 0.62.


Be Aware

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


K+S AG Cyclically Adjusted Book per Share Related Terms


K+S AG Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for K+S 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.

K+S AG Cyclically Adjusted Book per Share Chart

K+S 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 11.20 12.78 13.97 14.75 14.92

K+S 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 14.99 15.03 15.03 15.21 15.22

FRA:SDF1 vs CTVA, CF, MOS: Cyclically Adjusted Book per Share Comparison

For the Agricultural Inputs subindustry, K+S 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.


K+S AG Cyclically Adjusted PB Ratio vs Agriculture Industry

For the Agriculture industry and Basic Materials sector, K+S AG's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


FRA:SDF1
73GF Score
K+S AG FRA:SDF1
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

K+S 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, K+S 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)
=15.016/131.3638*131.3638
=15.016

Current CPI (Jun. 2026) = 131.3638.

K+S AG Quarterly Data

Book Value per Share CPI Adj_Book
201606 11.410 100.717 14.882
201609 11.070 101.017 14.396
201612 11.892 101.217 15.434
201703 12.042 101.417 15.598
201706 11.222 102.117 14.436
201709 11.138 102.717 14.244
201712 10.869 102.617 13.914
201803 10.453 102.917 13.342
201806 10.810 104.017 13.652
201809 10.948 104.718 13.734
201812 10.826 104.217 13.646
201903 11.647 104.217 14.681
201906 11.465 105.718 14.246
201909 11.911 106.018 14.759
201912 11.743 105.818 14.578
202003 11.141 105.718 13.844
202006 11.140 106.618 13.726
202009 6.025 105.818 7.480
202103 6.895 107.518 8.424
202106 8.772 108.486 10.622
202109 12.120 109.435 14.549
202112 13.739 110.384 16.350
202203 14.846 113.968 17.112
202206 16.142 115.760 18.318
202209 16.933 118.818 18.721
202212 17.555 119.345 19.323
202303 18.057 122.402 19.379
202306 17.791 123.140 18.979
202309 17.991 124.195 19.030
202312 18.155 123.773 19.268
202403 18.171 125.038 19.090
202406 17.827 125.882 18.603
202409 17.447 126.198 18.161
202412 17.354 127.041 17.944
202503 17.214 127.779 17.697
202506 12.011 128.412 12.287
202509 11.913 129.255 12.107
202512 13.645 129.361 13.856
202603 13.229 131.258 13.240
202606 15.016 131.364 15.016

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 €15.22 mean?
K+S AG (FRA:SDF1) has a Cyclically Adjusted Book per Share of €15.22 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 K+S AG and its competitors.
Is K+S AG's Cyclically Adjusted Book per Share too high?
K+S AG's current Cyclically Adjusted Book per Share is €15.22. Overall, K+S AG has a GF Score™ of 73/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does K+S AG's Cyclically Adjusted Book per Share compare to CTVA and CF?
K+S AG's Cyclically Adjusted Book per Share of €15.22 can be compared against companies in the Agriculture 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 an Agriculture company?
A good Cyclically Adjusted Book per Share depends on the Agriculture 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 K+S AG and its competitors. K+S AG's current Cyclically Adjusted Book per Share is €15.22. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is K+S AG stock overvalued right now?
Based on GuruFocus' analysis, K+S AG (FRA:SDF1) is currently considered Modestly Overvalued. The stock's GF Value™ is €6.60, compared to a current price of €7.95 — trading 20.5% above its estimated fair value. The current Cyclically Adjusted Book per Share is €15.22. K+S AG's overall GF Score™ is 73/100 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 K+S AG (FRA:SDF1), the current Cyclically Adjusted Book per Share is €15.22 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 K+S AG (FRA:SDF1) Overvalued in 2026?

Based on GuruFocus' analysis, K+S AG stock appears to be overvalued. The current stock price of €7.95 is trading 20.5% above its estimated GF Value™ of €6.60. GuruFocus considers K+S AG to be Modestly Overvalued.

Key valuation signals for FRA:SDF1:

  • Cyclically Adjusted Book per Share: €15.22
  • GF Value™: €6.60 vs. price of €7.95 (20.5% above fair value)
  • GF Score™: 73/100 with 6 warning signs

No single metric tells the full story. See the FRA:SDF1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


K+S AG Business Description

Address Bertha-von-Suttner-Strasse 7, Kassel, DEU, 34131
K+S AG produces two products: fertilizer and salt. The company engaged in business with potash and magnesium products from plants in Germany and Canadian sites in Bethune, as well as the European salt activities. It also includes the waste disposal and recycling business in Germany. extraction and processing of raw materials.
73GF Score

Get the complete analysis for FRA:SDF1

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

€7.95
Price
€6.60
GF Value