Cerus (STU:CU2) Cyclically Adjusted Book per Share: €0.47 (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.

STU:CU2 Cerus Corp STU:CU2
78 GF Score
Price €2.34
GF Value €1.97
Valuation Modestly Overvalued
! 3 Warning Signs
View Full Analysis

What is Cerus Cyclically Adjusted Book per Share?

Cerus STU:CU2 +0.86% 78 Cyclically Adjusted Book per Share is €0.47 as of Jun. 2026. GuruFocus rates STU:CU2 with a GF Score™ of 78/100 and a GF Value™ of €1.97 (Modestly Overvalued). The stock has 3 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.

Cerus's adjusted book value per share for the three months ended in Jun. 2026 was €0.302. 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 €0.47 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Cerus's average Cyclically Adjusted Book Growth Rate was -11.50% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -8.00% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -1.40% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -2.00% 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 Cerus was 9.40% per year. The lowest was -24.20% per year. And the median was -10.90% per year.

As of today (2026-08-27), Cerus's current stock price is €2.34. Cerus's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €0.47. Cerus's Cyclically Adjusted PB Ratio of today is 4.98.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Cerus was 13.89. The lowest was 1.81. And the median was 5.91.


Cerus  (STU:CU2) 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.

Cerus's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=2.34/0.47
=4.98

* 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 Cerus was 13.89. The lowest was 1.81. And the median was 5.91.


Be Aware

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


Cerus Cyclically Adjusted Book per Share Related Terms


Cerus Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Cerus'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.

Cerus Cyclically Adjusted Book per Share Chart

Cerus 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 0.59 0.65 0.66 0.63 0.47

Cerus 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 0.50 0.47 0.47 0.47 0.47

STU:CU2 vs CTKB, TCMD, CBLL: Cyclically Adjusted Book per Share Comparison

For the Medical Devices subindustry, Cerus'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.


Cerus Cyclically Adjusted PB Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Cerus's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:CU2
78GF Score
Cerus Corp STU:CU2
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Cerus 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, Cerus'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)
=0.302/333.9520*333.9520
=0.302

Current CPI (Jun. 2026) = 333.9520.

Cerus Quarterly Data

Book Value per Share CPI Adj_Book
201609 0.623 241.428 0.862
201612 0.529 241.432 0.732
201703 0.374 243.801 0.512
201706 0.320 244.955 0.436
201709 0.278 246.819 0.376
201712 0.285 246.524 0.386
201803 0.532 249.554 0.712
201806 0.579 251.989 0.767
201809 0.580 252.439 0.767
201812 0.543 251.233 0.722
201903 0.446 254.202 0.586
201906 0.415 256.143 0.541
201909 0.389 256.759 0.506
201912 0.356 256.974 0.463
202003 0.620 258.115 0.802
202006 0.613 257.797 0.794
202009 0.555 260.280 0.712
202012 0.507 260.474 0.650
202103 0.456 264.877 0.575
202106 0.408 271.696 0.501
202109 0.395 274.310 0.481
202112 0.431 278.802 0.516
202203 0.408 287.504 0.474
202206 0.405 296.311 0.456
202209 0.416 296.808 0.468
202212 0.359 296.797 0.404
202303 0.303 301.836 0.335
202306 0.260 305.109 0.285
202309 0.249 307.789 0.270
202312 0.266 306.746 0.290
202403 0.246 312.332 0.263
202406 0.248 314.175 0.264
202409 0.260 315.301 0.275
202412 0.289 315.605 0.306
202503 0.269 319.799 0.281
202506 0.251 322.561 0.260
202509 0.273 324.800 0.281
202512 0.285 324.054 0.294
202603 0.292 330.213 0.295
202606 0.302 333.952 0.302

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 €0.47 mean?
Cerus (STU:CU2) has a Cyclically Adjusted Book per Share of €0.47 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 Cerus and its competitors.
Is Cerus' Cyclically Adjusted Book per Share too high?
Cerus' current Cyclically Adjusted Book per Share is €0.47. Overall, Cerus has a GF Score™ of 78/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Cerus' Cyclically Adjusted Book per Share compare to CTKB and TCMD?
Cerus' Cyclically Adjusted Book per Share of €0.47 can be compared against companies in the Medical Devices & Instruments 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 Medical Devices & Instruments company?
A good Cyclically Adjusted Book per Share depends on the Medical Devices & Instruments 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 Cerus and its competitors. Cerus's current Cyclically Adjusted Book per Share is €0.47. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Cerus stock overvalued right now?
Based on GuruFocus' analysis, Cerus (STU:CU2) is currently considered Modestly Overvalued. The stock's GF Value™ is €1.97, compared to a current price of €2.34 — trading 18.8% above its estimated fair value. The current Cyclically Adjusted Book per Share is €0.47. Cerus' overall GF Score™ is 78/100 with 3 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 Cerus (STU:CU2), the current Cyclically Adjusted Book per Share is €0.47 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 Cerus (STU:CU2) Overvalued in 2026?

Based on GuruFocus' analysis, Cerus stock appears to be overvalued. The current stock price of €2.34 is trading 18.8% above its estimated GF Value™ of €1.97. GuruFocus considers Cerus to be Modestly Overvalued.

Key valuation signals for STU:CU2:

  • Cyclically Adjusted Book per Share: €0.47
  • GF Value™: €1.97 vs. price of €2.34 (18.8% above fair value)
  • GF Score™: 78/100 with 3 warning signs

No single metric tells the full story. See the STU:CU2 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Cerus Business Description

Other Exchanges CERS:USA
Address 1220 Concord Avenue, Suite 600, Concord, CA, USA, 94520
Cerus Corp is a biomedical products company focused on the field of blood transfusion safety. The INTERCEPT Blood System is designed to reduce the risk of transfusion-transmitted infections by inactivating a broad range of pathogens such as viruses, bacteria, and parasites. The company sells its INTERCEPT platelet and plasma systems in the United States of America, Europe, the Commonwealth of Independent States countries, the Middle East, and selected countries in other regions around the world. The firm continues to operate in only one segment: Blood safety, and generates revenue from the same.
78GF Score

Get the complete analysis for STU:CU2

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

€2.34
Price
€1.97
GF Value