Bayer AG (BSE:BAYN) Cyclically Adjusted Book per Share: lei227.40 (As of Mar. 2026)


BSE:BAYN Bayer AG BSE:BAYN
71 GF Score
Price lei250.00
GF Value lei139.24
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Bayer AG Cyclically Adjusted Book per Share?

Bayer AG BSE:BAYN +2.63% 71 Cyclically Adjusted Book per Share is lei227.40 as of Mar. 2026. GuruFocus rates BSE:BAYN with a GF Score™ of 71/100 and a GF Value™ of lei139.24 (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.

Bayer AG's adjusted book value per share for the three months ended in Mar. 2026 was lei155.420. 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 lei227.40 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Bayer AG's average Cyclically Adjusted Book Growth Rate was 1.20% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 3.20% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 5.90% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 6.90% 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 Bayer AG was 9.30% per year. The lowest was 0.80% per year. And the median was 6.80% per year.

As of today (2026-07-02), Bayer AG's current stock price is lei250.00. Bayer AG's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was lei227.40. Bayer AG's Cyclically Adjusted PB Ratio of today is 1.10.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Bayer AG was 4.72. The lowest was 0.43. And the median was 1.50.


Bayer AG  (BSE:BAYN) 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.

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

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=250.00/227.40
=1.10

* 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 Bayer AG was 4.72. The lowest was 0.43. And the median was 1.50.


Be Aware

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


Bayer AG Cyclically Adjusted Book per Share Related Terms


Bayer AG Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Bayer 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.

Bayer AG Cyclically Adjusted Book per Share Chart

Bayer 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 180.40 203.68 216.05 211.77 221.54

Bayer AG Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 221.05 228.79 223.83 221.54 227.40

BSE:BAYN vs LLY, JNJ, ABBV: Cyclically Adjusted Book per Share Comparison

For the Drug Manufacturers - General subindustry, Bayer 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.


Bayer AG Cyclically Adjusted PB Ratio vs Drug Manufacturers Industry

For the Drug Manufacturers industry and Healthcare sector, Bayer AG's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


BSE:BAYN
71GF Score
Bayer AG BSE:BAYN
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Bayer 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, Bayer AG'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)
=155.42/131.2583*131.2583
=155.420

Current CPI (Mar. 2026) = 131.2583.

Bayer AG Quarterly Data

Book Value per Share CPI Adj_Book
201606 139.094 100.717 181.273
201609 143.066 101.017 185.896
201612 174.348 101.217 226.095
201703 195.911 101.417 253.557
201706 199.896 102.117 256.941
201709 241.571 102.717 308.694
201712 237.309 102.617 303.544
201803 248.212 102.917 316.564
201806 270.427 104.017 341.249
201809 287.866 104.718 360.826
201812 256.352 104.217 322.867
201903 265.804 104.217 334.771
201906 235.806 105.718 292.775
201909 235.936 106.018 292.107
201912 244.703 105.818 303.535
202003 250.335 105.718 310.814
202006 187.394 106.618 230.703
202009 171.974 105.818 213.320
202012 173.065 105.518 215.284
202103 191.911 107.518 234.286
202106 170.644 108.486 206.464
202109 170.544 109.435 204.554
202112 173.895 110.384 206.781
202203 192.162 113.968 221.315
202206 187.311 115.760 212.388
202209 190.453 118.818 210.394
202212 191.430 119.345 210.539
202303 203.914 122.402 218.667
202306 186.570 123.140 198.869
202309 166.035 124.195 175.478
202312 167.354 123.773 177.475
202403 180.375 125.038 189.348
202406 179.039 125.882 186.686
202409 158.076 126.198 164.415
202412 155.722 127.041 160.891
202503 163.488 127.779 167.939
202506 163.260 128.412 166.879
202509 161.801 129.255 164.308
202512 141.606 129.361 143.683
202603 155.420 131.258 155.420

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 lei227.40 mean?
Bayer AG (BSE:BAYN) has a Cyclically Adjusted Book per Share of lei227.40 as of Mar. 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 Bayer AG and its competitors.
Is Bayer AG's Cyclically Adjusted Book per Share too high?
Bayer AG's current Cyclically Adjusted Book per Share is lei227.40. Overall, Bayer AG has a GF Score™ of 71/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Bayer AG's Cyclically Adjusted Book per Share compare to LLY and JNJ?
Bayer AG's Cyclically Adjusted Book per Share of lei227.40 can be compared against companies in the Drug Manufacturers 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 Drug Manufacturers company?
A good Cyclically Adjusted Book per Share depends on the Drug Manufacturers 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 Bayer AG and its competitors. Bayer AG's current Cyclically Adjusted Book per Share is lei227.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Bayer AG stock overvalued right now?
Based on GuruFocus' analysis, Bayer AG (BSE:BAYN) is currently considered Significantly Overvalued. The stock's GF Value™ is lei139.24, compared to a current price of lei250.00 — trading 79.5% above its estimated fair value. The current Cyclically Adjusted Book per Share is lei227.40. Bayer AG's overall GF Score™ is 71/100 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 Bayer AG (BSE:BAYN), the current Cyclically Adjusted Book per Share is lei227.40 as of Mar. 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 Bayer AG (BSE:BAYN) Overvalued in 2026?

Based on GuruFocus' analysis, Bayer AG stock appears to be overvalued. The current stock price of lei250.00 is trading 79.5% above its estimated GF Value™ of lei139.24. GuruFocus considers Bayer AG to be Significantly Overvalued.

Key valuation signals for BSE:BAYN:

  • Cyclically Adjusted Book per Share: lei227.40
  • GF Value™: lei139.24 vs. price of lei250.00 (79.5% above fair value)
  • GF Score™: 71/100 with 6 warning signs

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


Bayer AG Business Description

Address Kaiser-Wilhelm-Allee 1, Leverkusen, NW, DEU, 51368
Bayer is a German healthcare and agriculture conglomerate. Healthcare provides close to half of the company's sales and includes pharmaceutical drugs (about 38% of total sales in 2025) as well as vitamins and other consumer healthcare products (13% of total). The firm's crop science business (47% of total) sells seeds, pesticides, herbicides, and fungicides, which was expanded through its 2018 acquisition of Monsanto.
71GF Score

Get the complete analysis for BSE:BAYN

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

lei250.00
Price
lei139.24
GF Value