Diasorin SpA (WBO:DIAS) Tax Rate %: 55.97% (As of Dec. 2025)


WBO:DIAS Diasorin SpA WBO:DIAS
75 GF Score
Price €69.78
GF Value €89.88
Valuation Modestly Undervalued
! 6 Warning Signs
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What is Diasorin SpA Tax Rate %?

Diasorin SpA WBO:DIAS +0.09% 75 Tax Rate % is 55.97% as of Dec. 2025. GuruFocus rates WBO:DIAS with a GF Score™ of 75/100 and a GF Value™ of €89.88 (Modestly Undervalued). The stock has 6 warning signs investors should review.

Tax Rate % is calculated as Tax Expense divided by its Pre-Tax Income. Diasorin SpA's Tax Expense for the three months ended in Dec. 2025 was €17 Mil. Diasorin SpA's Pre-Tax Income for the three months ended in Dec. 2025 was €30 Mil. Therefore, Diasorin SpA's Tax Rate % for the quarter that ended in Dec. 2025 was 55.97%.

Diasorin SpA Tax Rate % Related Terms

Diasorin SpA Tax Rate % Historical Data

* Premium members only.

The historical data trend for Diasorin SpA's Tax Rate % 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 Tax Rate % Chart

Diasorin SpA Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Tax Rate %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 22.19 26.33 21.22 22.85 29.10

Diasorin SpA Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Tax Rate % 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 23.19 26.76 24.00 55.97 25.49
WBO:DIAS
75GF Score
Diasorin SpA WBO:DIAS
Tax Rate % is just one metric. See GF Score™, valuation, warning signs, and more.
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Diasorin SpA Tax Rate % Calculation

Tax Rate % is the ratio of tax expense divided by pretax income, usually presented in percent.

Diasorin SpA's Tax Rate % for the fiscal year that ended in Dec. 2025 is calculated as

Tax Rate %=Tax Expense (A: Dec. 2025 )/Pre-Tax Income (A: Dec. 2025 )
=61.569/211.605
=29.10 %

Diasorin SpA's Tax Rate % for the quarter that ended in Dec. 2025 is calculated as

Tax Rate %=Tax Expense (Q: Dec. 2025 )/Pre-Tax Income (Q: Dec. 2025 )
=16.569/29.605
=55.97 %

* 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.

Frequently Asked Questions Learn more about Tax Rate % →
What does a Tax Rate % of 55.97% mean?
Diasorin SpA (WBO:DIAS) has a Tax Rate % of 55.97% as of Dec. 2025.
Is Diasorin SpA's Tax Rate % too high?
Diasorin SpA's current Tax Rate % is 55.97%. Overall, Diasorin SpA has a GF Score™ of 75/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Diasorin SpA's Tax Rate % compare to TMO and DHR?
Diasorin SpA's Tax Rate % of 55.97% 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 Tax Rate % for a Medical Diagnostics & Research company?
A good Tax Rate % depends on the Medical Diagnostics & Research industry context. However, Tax Rate % 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 Tax Rate % mean?
A high Tax Rate % can signal that a stock is expensive relative to its fundamentals. Diasorin SpA's current Tax Rate % is 55.97%. 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 (WBO:DIAS) is currently considered Modestly Undervalued. The stock's GF Value™ is €89.88, compared to a current price of €69.78 — trading 22.4% below its estimated fair value. The current Tax Rate % is 55.97%. Diasorin SpA's overall GF Score™ is 75/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Tax Rate % calculated?
Tax Rate % is calculated from a company's financial statements. For Diasorin SpA (WBO:DIAS), the current Tax Rate % is 55.97% 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 (WBO:DIAS) Overvalued in 2026?

Based on GuruFocus' analysis, Diasorin SpA stock appears to be undervalued. The current stock price of €69.78 is trading 22.4% below its estimated GF Value™ of €89.88. GuruFocus considers Diasorin SpA to be Modestly Undervalued.

Key valuation signals for WBO:DIAS:

  • Tax Rate %: 55.97%
  • GF Value™: €89.88 vs. price of €69.78 (22.4% below fair value)
  • GF Score™: 75/100 with 6 warning signs

No single metric tells the full story. See the WBO:DIAS 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.
75GF Score

Get the complete analysis for WBO:DIAS

Tax Rate % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€69.78
Price
€89.88
GF Value