BRAIN Biotech AG (HAM:BNN) Cyclically Adjusted PB Ratio: 2.13 (As of Aug. 02, 2026) — 22% Above Median

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HAM:BNN BRAIN Biotech AG HAM:BNN
68 GF Score
Price €2.77
GF Value €2.53
Valuation Fairly Valued
! 2 Warning Signs
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What is BRAIN Biotech AG Cyclically Adjusted PB Ratio?

BRAIN Biotech AG HAM:BNN +2.59% 68 Cyclically Adjusted PB Ratio is 2.13 as of Aug. 02, 2026, which is 22% above its 10-year median of 1.74. GuruFocus rates HAM:BNN with a GF Score™ of 68/100 and a GF Value™ of €2.53 (Fairly Valued). The stock has 2 warning signs investors should review. Among 1,248 Chemicals companies, BRAIN Biotech AG ranks worse than 59.21% on this metric.

As of today (2026-08-02), BRAIN Biotech AG's current share price is €2.77. 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 for today is 2.13.

The historical rank and industry rank for BRAIN Biotech AG's Cyclically Adjusted PB Ratio or its related term are showing as below:

HAM:BNN' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 1.31   Med: 1.74   Max: 2.88
Current: 2.09

During the past years, BRAIN Biotech AG's highest Cyclically Adjusted PB Ratio was 2.88. The lowest was 1.31. And the median was 1.74.

HAM:BNN's Cyclically Adjusted PB Ratio is ranked worse than
59.21% of 1248 companies
in the Chemicals industry
Industry Median: 1.62 vs HAM:BNN: 2.09

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 adjusted book value per share data 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.

Shiller PE for Stocks: The True Measure of Stock Valuation


BRAIN Biotech AG  (HAM:BNN) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


BRAIN Biotech AG Cyclically Adjusted PB Ratio Related Terms


BRAIN Biotech AG Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for BRAIN Biotech AG's Cyclically Adjusted PB Ratio 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 PB Ratio Chart

BRAIN Biotech AG Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 1.44 1.55

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 PB Ratio 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 1.64 1.38 1.55 1.81 1.83

HAM:BNN vs LIN, SHW, ECL: Cyclically Adjusted PB Ratio 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
68GF Score
BRAIN Biotech AG HAM:BNN
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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BRAIN Biotech AG Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

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

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=2.77/1.30
=2.13

* 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's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

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.

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.

What does a Cyclically Adjusted PB Ratio of 2.13 mean?
BRAIN Biotech AG (HAM:BNN) has a Cyclically Adjusted PB Ratio of 2.13 as of Aug. 02, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on BRAIN Biotech AG and its competitors. This is 22% above median its historical median of 1.74. Over the past decade, BRAIN Biotech AG's Cyclically Adjusted PB Ratio has ranged from 1.31 to 2.88. According to the industry distribution chart, BRAIN Biotech AG ranks #739 out of 1248 companies in the Chemicals industry, placing it in the top 59.2%.
Is BRAIN Biotech AG's Cyclically Adjusted PB Ratio too high?
BRAIN Biotech AG's current Cyclically Adjusted PB Ratio of 2.13 is 22% above median its 10-year median of 1.74. Over the past 10 years, this metric has ranged from a low of 1.31 to a high of 2.88. The Chemicals industry median Cyclically Adjusted PB Ratio is 1.62. BRAIN Biotech AG's value of 2.13 is 31.5% above this industry median. Based on the distribution chart, BRAIN Biotech AG ranks #739 out of 1248 companies in the Chemicals industry, which is below the industry midpoint. Overall, BRAIN Biotech AG has a GF Score™ of 68/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does BRAIN Biotech AG's Cyclically Adjusted PB Ratio compare to LIN and SHW?
According to the Chemicals industry distribution chart, BRAIN Biotech AG ranks #739 out of 1248 companies for Cyclically Adjusted PB Ratio. This places BRAIN Biotech AG in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.62. BRAIN Biotech AG's value of 2.13 is 31.5% above this benchmark. Historically, BRAIN Biotech AG's own Cyclically Adjusted PB Ratio has ranged from 1.31 to 2.88 over the past decade. While the company's 10-year median is 1.74 vs. the industry median of 1.62, BRAIN Biotech AG has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for a Chemicals company?
The median Cyclically Adjusted PB Ratio among Chemicals companies is 1.62, based on 1,248 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. BRAIN Biotech AG's current Cyclically Adjusted PB Ratio of 2.13 is 31.5% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on BRAIN Biotech AG and its competitors. For the Chemicals industry, the median Cyclically Adjusted PB Ratio is 1.62 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. BRAIN Biotech AG's current Cyclically Adjusted PB Ratio is 2.13, which is 22% above median its own 10-year median of 1.74. 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 €2.53, compared to a current price of €2.77 — trading 9.5% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 2.13, which is 22% above median its 10-year median of 1.74 and 31.5% above the Chemicals industry median of 1.62. BRAIN Biotech AG's overall GF Score™ is 68/100 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 PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For BRAIN Biotech AG (HAM:BNN), the current Cyclically Adjusted PB Ratio is 2.13 as of Aug. 02, 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 €2.77 is trading 9.5% above its estimated GF Value™ of €2.53. GuruFocus considers BRAIN Biotech AG to be Fairly Valued.

Key valuation signals for HAM:BNN:

  • Cyclically Adjusted PB Ratio: 2.13 (22% above median its 10-year median of 1.74)
  • GF Value™: €2.53 vs. price of €2.77 (9.5% above fair value)
  • GF Score™: 68/100 with 2 warning signs
  • Industry Position: 31.5% above the Chemicals median (#739 of 1248)

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.
68GF Score

Get the complete analysis for HAM:BNN

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

€2.77
Price
€2.53
GF Value