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.
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.
The CooperCOO +2.66%90 3-Year Share Buyback Ratio is 0.20 as of Apr. 2026. GuruFocus rates COO with a GF Score™ of 90/100 and a GF Value™ of $101.54 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 614 Medical Devices & Instruments companies, The Cooper ranks better than 83.88% 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. The Cooper's current 3-Year Share Buyback Ratio was 0.20%.
The historical rank and industry rank for The Cooper's 3-Year Share Buyback Ratio or its related term are showing as below:
COO'
s 3-Year Share Buyback Ratio Range Over the Past 10 Years
Min: -12.9 Med: -1.5 Max: 1.1
Current: 0.2
During the past 13 years, The Cooper's highest 3-Year Share Buyback Ratio was 1.10%. The lowest was -12.90%. And the median was -1.50%.
COO's 3-Year Share Buyback Ratio is ranked better than 83.88% of 614
companies
in the Medical Devices & Instruments industry
Industry Median: -2.6
vs COO: 0.20
The Cooper (NAS:COO) 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.
The Cooper 3-Year Share Buyback Ratio Related Terms
COO vs SOLV, ALGN, BAX: 3-Year Share Buyback Ratio Comparison
For the Medical Instruments & Supplies subindustry, The Cooper'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.
The Cooper 3-Year Share Buyback Ratio vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, The Cooper's 3-Year Share Buyback Ratio distribution charts can be found below:
* The bar in red indicates where The Cooper's 3-Year Share Buyback Ratio falls into.
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 0.20 mean?
The Cooper (COO) has a 3-Year Share Buyback Ratio of 0.20 as of Apr. 2026. 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 The Cooper and its competitors. According to the industry distribution chart, The Cooper ranks #99 out of 614 companies in the Medical Devices & Instruments industry, placing it in the top 16.1%.
Is The Cooper's 3-Year Share Buyback Ratio too high?
The Cooper's current 3-Year Share Buyback Ratio is 0.20. Based on the distribution chart, The Cooper ranks #99 out of 614 companies in the Medical Devices & Instruments industry, which is in the top quartile — a strong position relative to peers. Overall, The Cooper has a GF Score™ of 90/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does The Cooper's 3-Year Share Buyback Ratio compare to SOLV and ALGN?
According to the Medical Devices & Instruments industry distribution chart, The Cooper ranks #99 out of 614 companies for 3-Year Share Buyback Ratio. This places The Cooper in the top 16% 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 Devices & Instruments company?
A good 3-Year Share Buyback Ratio depends on the Medical Devices & Instruments 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 The Cooper and its competitors. The Cooper's current 3-Year Share Buyback Ratio is 0.20. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is The Cooper stock overvalued right now?
Based on GuruFocus' analysis, The Cooper (COO) is currently considered Modestly Undervalued. The stock's GF Value™ is $101.54, compared to a current price of $74.23 — trading 26.9% below its estimated fair value. The current 3-Year Share Buyback Ratio is 0.20. The Cooper's overall GF Score™ is 90/100 with 3 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 The Cooper (COO), the current 3-Year Share Buyback Ratio is 0.20 as of Apr. 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 The Cooper (COO) Overvalued in 2026?
Based on GuruFocus' analysis, The Cooper stock appears to be undervalued.
The current stock price of $74.23 is trading 26.9% below its estimated GF Value™ of $101.54.
GuruFocus considers The Cooper to be Modestly Undervalued.
Key valuation signals for COO:
3-Year Share Buyback Ratio: 0.20
GF Value™: $101.54 vs. price of $74.23 (26.9% below fair value)
No single metric tells the full story. See the COO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
CooperCompanies is one of the largest eyecare companies in the US. It operates in two segments: CooperVision and CooperSurgical. CooperVision is a pure-play contact lens business with a suite of spherical, multifocal, and toric contact lenses. The company also has one of the most comprehensive specialty lens portfolios in the world. With brands including Proclear, Biofinity, MyDay, and Clariti, Cooper controls roughly one fourth of the US contact lens market. CooperSurgical, founded in 1990, is made up of equipment related to reproductive care, fertility, and women's care. Cooper has the broadest medical device coverage of the entire IVF cycle. It also has Paragard, the only hormone-free IUD in the US, and controls 17% of the US IUD market.
90GF Score
Get the complete analysis for COO
3-Year Share Buyback Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
COO has been successfully added to your 
