Diasorin SpA (MIL:DIA) Cyclically Adjusted Book per Share: €23.07 (As of Dec. 2025)


MIL:DIA Diasorin SpA MIL:DIA
69 GF Score
Price €67.76
GF Value €90.16
Valuation Modestly Undervalued
! 5 Warning Signs
View Full Analysis

What is Diasorin SpA Cyclically Adjusted Book per Share?

Diasorin SpA MIL:DIA -3.14% 69 Cyclically Adjusted Book per Share is €23.07 as of Dec. 2025. GuruFocus rates MIL:DIA with a GF Score™ of 69/100 and a GF Value™ of €90.16 (Modestly Undervalued). The stock has 5 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.

Diasorin SpA's adjusted book value per share for the three months ended in Dec. 2025 was €29.896. 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 €23.07 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Diasorin SpA's average Cyclically Adjusted Book Growth Rate was 9.60% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 11.80% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 16.80% 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 Diasorin SpA was 20.10% per year. The lowest was 11.70% per year. And the median was 15.35% per year.

As of today (2026-07-01), Diasorin SpA's current stock price is €67.76. Diasorin SpA's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was €23.07. Diasorin SpA's Cyclically Adjusted PB Ratio of today is 2.94.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Diasorin SpA was 20.36. The lowest was 2.51. And the median was 9.29.


Diasorin SpA  (MIL:DIA) 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.

Diasorin SpA's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=67.76/23.07
=2.94

* 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 Diasorin SpA was 20.36. The lowest was 2.51. And the median was 9.29.


Be Aware

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


Diasorin SpA Cyclically Adjusted Book per Share Related Terms


Diasorin SpA Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Diasorin SpA'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.

Diasorin SpA Cyclically Adjusted Book per Share Chart

Diasorin SpA 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 12.79 16.50 18.65 21.04 23.07

Diasorin SpA 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 21.76 22.22 22.74 23.07 0.00

MIL:DIA vs TMO, DHR, IDXX: Cyclically Adjusted Book per Share Comparison

For the Diagnostics & Research subindustry, Diasorin SpA'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.


Diasorin SpA Cyclically Adjusted PB Ratio vs Medical Diagnostics & Research Industry

For the Medical Diagnostics & Research industry and Healthcare sector, Diasorin SpA's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


MIL:DIA
69GF Score
Diasorin SpA MIL:DIA
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Diasorin SpA 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, Diasorin SpA's adjusted Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book= Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=29.896/122.6000*122.6000
=29.896

Current CPI (Dec. 2025) = 122.6000.

Diasorin SpA Quarterly Data

Book Value per Share CPI Adj_Book
201603 10.989 99.600 13.527
201606 10.749 99.900 13.191
201609 0.000 100.100 0.000
201612 12.104 100.300 14.795
201703 12.654 101.000 15.360
201706 12.088 101.100 14.659
201709 12.617 101.200 15.285
201712 13.383 101.200 16.213
201803 13.918 101.800 16.762
201806 11.421 102.400 13.674
201809 12.045 102.600 14.393
201812 12.894 102.300 15.453
201903 13.807 102.800 16.466
201906 13.654 103.100 16.236
201909 14.798 102.900 17.631
201912 15.488 102.800 18.471
202003 16.332 102.900 19.459
202006 16.194 102.900 19.294
202009 16.538 102.300 19.820
202012 17.433 102.600 20.831
202103 19.392 103.700 22.926
202106 20.739 104.200 24.401
202109 22.608 104.900 26.423
202112 24.958 106.600 28.704
202203 27.508 110.400 30.548
202206 28.497 112.500 31.055
202209 30.292 114.200 32.520
202212 28.387 119.000 29.246
202303 28.522 118.800 29.434
202306 28.053 119.700 28.733
202309 29.109 120.300 29.666
202312 28.835 119.700 29.534
202403 30.332 120.200 30.938
202406 30.310 120.700 30.787
202409 30.197 121.200 30.546
202412 33.417 121.200 33.803
202503 31.283 122.500 31.309
202506 28.451 122.700 28.428
202509 29.622 123.100 29.502
202512 29.896 122.600 29.896

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 €23.07 mean?
Diasorin SpA (MIL:DIA) has a Cyclically Adjusted Book per Share of €23.07 as of Dec. 2025. 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 Diasorin SpA and its competitors.
Is Diasorin SpA's Cyclically Adjusted Book per Share too high?
Diasorin SpA's current Cyclically Adjusted Book per Share is €23.07. Overall, Diasorin SpA has a GF Score™ of 69/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Diasorin SpA's Cyclically Adjusted Book per Share compare to TMO and DHR?
Diasorin SpA's Cyclically Adjusted Book per Share of €23.07 can be compared against companies in the Medical Diagnostics & Research 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 Diagnostics & Research company?
A good Cyclically Adjusted Book per Share depends on the Medical Diagnostics & Research 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 Diasorin SpA and its competitors. Diasorin SpA's current Cyclically Adjusted Book per Share is €23.07. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diasorin SpA stock overvalued right now?
Based on GuruFocus' analysis, Diasorin SpA (MIL:DIA) is currently considered Modestly Undervalued. The stock's GF Value™ is €90.16, compared to a current price of €67.76 — trading 24.8% below its estimated fair value. The current Cyclically Adjusted Book per Share is €23.07. Diasorin SpA's overall GF Score™ is 69/100 with 5 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 Diasorin SpA (MIL:DIA), the current Cyclically Adjusted Book per Share is €23.07 as of Dec. 2025. 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 Diasorin SpA (MIL:DIA) Overvalued in 2026?

Based on GuruFocus' analysis, Diasorin SpA stock appears to be undervalued. The current stock price of €67.76 is trading 24.8% below its estimated GF Value™ of €90.16. GuruFocus considers Diasorin SpA to be Modestly Undervalued.

Key valuation signals for MIL:DIA:

  • Cyclically Adjusted Book per Share: €23.07
  • GF Value™: €90.16 vs. price of €67.76 (24.8% below fair value)
  • GF Score™: 69/100 with 5 warning signs

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


Diasorin SpA Business Description

Address Via Crescentino Snc, Saluggia, Vercelli, ITA, 13040
Diasorin develops and manufactures a broad portfolio of in vitro diagnostics for detecting pathogens and sample contamination from the human body, as well as for use in industrial settings, such as food and water contamination testing. The company operates three segments: immunodiagnostics (69% of sales), molecular diagnostics (16%), and licensed technologies (14%). Diasorin was an important manufacturer of covid tests, which boosted its profits during the pandemic, but this segment's importance has decreased over the years, and in 2025, it accounted for only 1% of total sales.
69GF Score

Get the complete analysis for MIL:DIA

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

€67.76
Price
€90.16
GF Value