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Diasorin SpACHIX:DIAM -4.83%77 3-Year Share Buyback Ratio is 0.30 as of Dec. 2025. GuruFocus rates CHIX:DIAM with a GF Score™ of 77/100 and a GF Value™ of €88.87 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 174 Medical Diagnostics & Research companies, Diasorin SpA ranks better than 78.74% on this metric.
Shares Outstanding (EOP) are shares that have been authorized, issued, and purchased by investors and are held by them.
3-Year Share Buyback Ratio measures the average annual proportion of a company's outstanding shares repurchased over the past three years. It is calculated as the annualized percentage change in shares outstanding from three years ago to the current year. A positive ratio may indicate share buybacks over the period, while a zero or negative ratio may reflect no repurchases or potential share issuance. Diasorin SpA's current 3-Year Share Buyback Ratio was 0.30%.
The historical rank and industry rank for Diasorin SpA's 3-Year Share Buyback Ratio or its related term are showing as below:
CHIX:DIAm'
s 3-Year Share Buyback Ratio Range Over the Past 10 Years
Min: -3.2 Med: 0 Max: 0.9
Current: 0.3
During the past 13 years, Diasorin SpA's highest 3-Year Share Buyback Ratio was 0.90%. The lowest was -3.20%. And the median was 0.00%.
CHIX:DIAm's 3-Year Share Buyback Ratio is ranked better than 78.74% of 174
companies
in the Medical Diagnostics & Research industry
Industry Median: -2.5
vs CHIX:DIAm: 0.30
Diasorin SpA (CHIX:DIAm) 3-Year Share Buyback Ratio Explanation
A negative number means the company might be issuing new shares. A positive number indicates that the company is buying back shares.
Be Aware
Investors usually like share buybacks. But as pointed by Warren Buffett, only if a company buys back shares at the prices below the stock's intrinsic value, it rewards remaining shareholders. If a company buys its overvalued stocks back, it destroys shareholder value.
Diasorin SpA 3-Year Share Buyback Ratio Related Terms
CHIX:DIAM vs TMO, DHR, IDXX: 3-Year Share Buyback Ratio Comparison
For the Diagnostics & Research subindustry, Diasorin SpA's 3-Year Share Buyback Ratio, along with its competitors' market caps and 3-Year Share Buyback 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 3-Year Share Buyback Ratio vs Medical Diagnostics & Research Industry
For the Medical Diagnostics & Research industry and Healthcare sector, Diasorin SpA's 3-Year Share Buyback Ratio distribution charts can be found below:
* The bar in red indicates where Diasorin SpA's 3-Year Share Buyback Ratio falls into.
Diasorin SpA 3-Year Share Buyback Ratio Calculation
This is the annualized percentage change in shares outstanding from three years ago to the current year. The annualized percentage change is calculated with expontential compound based on the latest four years of annual data on Shares Outstanding (EOP).
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 average dividends per share growth rate.
What does a 3-Year Share Buyback Ratio of 0.30 mean?
Diasorin SpA (CHIX:DIAM) has a 3-Year Share Buyback Ratio of 0.30 as of Dec. 2025. The 3-Year Share Buyback Ratio measures the average annual proportion of a company's outstanding shares repurchased over the past three years. It is calculated as the annualized percentage change in shares outstanding from three years ago to the current year. View historical data for Diasorin SpA and its competitors. According to the industry distribution chart, Diasorin SpA ranks #37 out of 174 companies in the Medical Diagnostics & Research industry, placing it in the top 21.3%.
Is Diasorin SpA's 3-Year Share Buyback Ratio too high?
Diasorin SpA's current 3-Year Share Buyback Ratio is 0.30. Based on the distribution chart, Diasorin SpA ranks #37 out of 174 companies in the Medical Diagnostics & Research industry, which is in the top quartile — a strong position relative to peers. Overall, Diasorin SpA has a GF Score™ of 77/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Diasorin SpA's 3-Year Share Buyback Ratio compare to TMO and DHR?
According to the Medical Diagnostics & Research industry distribution chart, Diasorin SpA ranks #37 out of 174 companies for 3-Year Share Buyback Ratio. This places Diasorin SpA in the top 21% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-Year Share Buyback Ratio for a Medical Diagnostics & Research company?
A good 3-Year Share Buyback Ratio depends on the Medical Diagnostics & Research industry context. However, 3-Year Share Buyback Ratio 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 3-Year Share Buyback Ratio mean?
A high 3-Year Share Buyback Ratio can signal that a stock is expensive relative to its fundamentals. The 3-Year Share Buyback Ratio measures the average annual proportion of a company's outstanding shares repurchased over the past three years. It is calculated as the annualized percentage change in shares outstanding from three years ago to the current year. View historical data for Diasorin SpA and its competitors. Diasorin SpA's current 3-Year Share Buyback Ratio is 0.30. 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 (CHIX:DIAM) is currently considered Modestly Undervalued. The stock's GF Value™ is €88.87, compared to a current price of €66.84 — trading 24.8% below its estimated fair value. The current 3-Year Share Buyback Ratio is 0.30. Diasorin SpA's overall GF Score™ is 77/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year Share Buyback Ratio calculated?
3-Year Share Buyback Ratio is calculated from a company's financial statements. For Diasorin SpA (CHIX:DIAM), the current 3-Year Share Buyback Ratio is 0.30 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 (CHIX:DIAM) Overvalued in 2026?
Based on GuruFocus' analysis, Diasorin SpA stock appears to be undervalued.
The current stock price of €66.84 is trading 24.8% below its estimated GF Value™ of €88.87.
GuruFocus considers Diasorin SpA to be Modestly Undervalued.
Key valuation signals for CHIX:DIAM:
3-Year Share Buyback Ratio: 0.30
GF Value™: €88.87 vs. price of €66.84 (24.8% below fair value)
No single metric tells the full story. See the CHIX:DIAM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
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.
77GF Score
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