BRAIN Biotech AG (HAM:BNN) Cyclically Adjusted Book per Share: €1.30 (As of Mar. 2026)


HAM:BNN BRAIN Biotech AG HAM:BNN
65 GF Score
Price €2.74
GF Value €2.48
Valuation Fairly Valued
! 2 Warning Signs
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What is BRAIN Biotech AG Cyclically Adjusted Book per Share?

BRAIN Biotech AG HAM:BNN -4.20% 65 Cyclically Adjusted Book per Share is €1.30 as of Mar. 2026. GuruFocus rates HAM:BNN with a GF Score™ of 65/100 and a GF Value™ of €2.48 (Fairly Valued). The stock has 2 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.

BRAIN Biotech AG's adjusted book value per share for the three months ended in Mar. 2026 was €-0.177. 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 €1.30 for the trailing ten years ended in Mar. 2026.

During the past 12 months, BRAIN Biotech AG's average Cyclically Adjusted Book Growth Rate was -7.00% 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.

As of today (2026-07-07), BRAIN Biotech AG's current stock price is €2.74. BRAIN Biotech AG's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €1.30. BRAIN Biotech AG's Cyclically Adjusted PB Ratio of today is 2.11.

During the past 11 years, the highest Cyclically Adjusted PB Ratio of BRAIN Biotech AG was 2.88. The lowest was 1.31. And the median was 1.73.


BRAIN Biotech AG  (HAM:BNN) 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.

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

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=2.74/1.30
=2.11

* 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.

During the past 11 years, the highest Cyclically Adjusted PB Ratio of BRAIN Biotech AG was 2.88. The lowest was 1.31. And the median was 1.73.


Be Aware

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


BRAIN Biotech AG Cyclically Adjusted Book per Share Related Terms


BRAIN Biotech AG Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for BRAIN Biotech 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.

BRAIN Biotech AG Cyclically Adjusted Book per Share Chart

BRAIN Biotech AG Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 1.48 1.39

BRAIN Biotech 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 1.45 1.34 1.39 1.33 1.30

HAM:BNN vs LIN, SHW, ECL: Cyclically Adjusted Book per Share Comparison

For the Specialty Chemicals subindustry, BRAIN Biotech 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.


BRAIN Biotech AG Cyclically Adjusted PB Ratio vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, BRAIN Biotech AG's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


HAM:BNN
65GF Score
BRAIN Biotech AG HAM:BNN
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

BRAIN Biotech 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, BRAIN Biotech 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)
=-0.177/131.2583*131.2583
=-0.177

Current CPI (Mar. 2026) = 131.2583.

BRAIN Biotech AG Quarterly Data

Book Value per Share CPI Adj_Book
201606 1.977 100.717 2.577
201609 1.625 101.017 2.111
201612 1.464 101.217 1.899
201703 1.399 101.417 1.811
201706 1.301 102.117 1.672
201709 2.613 102.717 3.339
201712 2.483 102.617 3.176
201803 1.645 102.917 2.098
201806 1.671 104.017 2.109
201809 1.303 104.718 1.633
201812 1.355 104.217 1.707
201903 1.199 104.217 1.510
201906 0.983 105.718 1.220
201909 0.848 106.018 1.050
201912 0.574 105.818 0.712
202003 0.434 105.718 0.539
202006 1.050 106.618 1.293
202009 1.047 105.818 1.299
202012 0.983 105.518 1.223
202103 1.115 107.518 1.361
202106 1.216 108.486 1.471
202109 1.775 109.435 2.129
202112 1.696 110.384 2.017
202203 1.386 113.968 1.596
202206 1.270 115.760 1.440
202209 1.357 118.818 1.499
202212 1.240 119.345 1.364
202303 1.148 122.402 1.231
202306 1.068 123.140 1.138
202309 0.997 124.195 1.054
202312 0.881 123.773 0.934
202403 0.842 125.038 0.884
202406 0.749 125.882 0.781
202409 0.578 126.198 0.601
202412 0.414 127.041 0.428
202503 0.275 127.779 0.282
202506 0.229 128.412 0.234
202509 0.084 129.255 0.085
202512 -0.033 129.361 -0.033
202603 -0.177 131.258 -0.177

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 €1.30 mean?
BRAIN Biotech AG (HAM:BNN) has a Cyclically Adjusted Book per Share of €1.30 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 BRAIN Biotech AG and its competitors.
Is BRAIN Biotech AG's Cyclically Adjusted Book per Share too high?
BRAIN Biotech AG's current Cyclically Adjusted Book per Share is €1.30. Overall, BRAIN Biotech AG has a GF Score™ of 65/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does BRAIN Biotech AG's Cyclically Adjusted Book per Share compare to LIN and SHW?
BRAIN Biotech AG's Cyclically Adjusted Book per Share of €1.30 can be compared against companies in the Chemicals 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 Chemicals company?
A good Cyclically Adjusted Book per Share depends on the Chemicals 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 BRAIN Biotech AG and its competitors. BRAIN Biotech AG's current Cyclically Adjusted Book per Share is €1.30. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is BRAIN Biotech AG stock overvalued right now?
Based on GuruFocus' analysis, BRAIN Biotech AG (HAM:BNN) is currently considered Fairly Valued. The stock's GF Value™ is €2.48, compared to a current price of €2.74 — trading 10.5% above its estimated fair value. The current Cyclically Adjusted Book per Share is €1.30. BRAIN Biotech AG's overall GF Score™ is 65/100 with 2 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 BRAIN Biotech AG (HAM:BNN), the current Cyclically Adjusted Book per Share is €1.30 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 BRAIN Biotech AG (HAM:BNN) Overvalued in 2026?

Based on GuruFocus' analysis, BRAIN Biotech AG stock appears to be overvalued. The current stock price of €2.74 is trading 10.5% above its estimated GF Value™ of €2.48. GuruFocus considers BRAIN Biotech AG to be Fairly Valued.

Key valuation signals for HAM:BNN:

  • Cyclically Adjusted Book per Share: €1.30
  • GF Value™: €2.48 vs. price of €2.74 (10.5% above fair value)
  • GF Score™: 65/100 with 2 warning signs

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


BRAIN Biotech AG Business Description

Other Exchanges 0RFI:UKBNN:Germany
Address Darmstadter Strasse 34-36, Zwingenberg, BW, DEU, 64673
BRAIN Biotech AG is an industrial biotechnology specialist focused on enzyme technology, microbial production strains, and bioprocess design to enable bio-based innovations. The Group conducts research, development, and production for client specifications and its own product portfolio, supporting customers in the food and beverage, chemical, and life sciences industries with solutions that enhance productivity, efficiency, and sustainability. Its operations are organized into two segments: BRAIN Biocatalysts, which develops, produces, and distributes specialty enzymes, microorganisms, and ingredients and generates the majority of revenue, and BRAIN BioIncubator, which focuses on development projects. The company operates in Germany and other countries.
65GF Score

Get the complete analysis for HAM:BNN

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

€2.74
Price
€2.48
GF Value