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Shares Outstanding (EOP) are shares that have been authorized, issued, and purchased by investors and are held by them.
5-Year Share Buyback Ratio measures the average annual proportion of a company's outstanding shares repurchased over the past five years. It is calculated as the annualized percentage change in shares outstanding from five 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. Aduro Clean Technologies's current 5-Year Share Buyback Ratio was -53.70%.
TSX:ACT's 5-Year Share Buyback Ratio is ranked worse than 98.54% of 2061
companies
in the Industrial Products industry
Industry Median: -1.8
vs TSX:ACT: -53.70
Aduro Clean Technologies (TSX:ACT) 5-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.
Aduro Clean Technologies 5-Year Share Buyback Ratio Related Terms
TSX:ACT vs VLTO, ZWS, CECO: 5-Year Share Buyback Ratio Comparison
For the Pollution & Treatment Controls subindustry, Aduro Clean Technologies's 5-Year Share Buyback Ratio, along with its competitors' market caps and 5-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.
Aduro Clean Technologies 5-Year Share Buyback Ratio vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Aduro Clean Technologies's 5-Year Share Buyback Ratio distribution charts can be found below:
* The bar in red indicates where Aduro Clean Technologies's 5-Year Share Buyback Ratio falls into.
Aduro Clean Technologies 5-Year Share Buyback Ratio Calculation
This is the annualized percentage change in shares outstanding from five years ago to the current year. The annualized percentage change is calculated with least-square regression based on the latest six 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 5-Year Share Buyback Ratio of -53.70 mean?
Aduro Clean Technologies (TSX:ACT) has a 5-Year Share Buyback Ratio of -53.70 as of Feb. 2026. The 5-Year Share Buyback Ratio measures the average annual proportion of a company's outstanding shares repurchased over the past five years. It is calculated as the annualized percentage change in shares outstanding from five years ago to the current year. View historical data for Aduro Clean Technologies and its competitors. According to the industry distribution chart, Aduro Clean Technologies ranks #2031 out of 2061 companies in the Industrial Products industry, placing it in the top 98.5%.
Is Aduro Clean Technologies' 5-Year Share Buyback Ratio too high?
Aduro Clean Technologies' current 5-Year Share Buyback Ratio is -53.70. Based on the distribution chart, Aduro Clean Technologies ranks #2031 out of 2061 companies in the Industrial Products industry, which is in the bottom quartile relative to peers. Overall, Aduro Clean Technologies has a GF Score™ of 43/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Aduro Clean Technologies' 5-Year Share Buyback Ratio compare to VLTO and ZWS?
According to the Industrial Products industry distribution chart, Aduro Clean Technologies ranks #2031 out of 2061 companies for 5-Year Share Buyback Ratio. This places Aduro Clean Technologies in the lower half of its industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 5-Year Share Buyback Ratio for an Industrial Products company?
A good 5-Year Share Buyback Ratio depends on the Industrial Products industry context. However, 5-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 5-Year Share Buyback Ratio mean?
A high 5-Year Share Buyback Ratio can signal that a stock is expensive relative to its fundamentals. The 5-Year Share Buyback Ratio measures the average annual proportion of a company's outstanding shares repurchased over the past five years. It is calculated as the annualized percentage change in shares outstanding from five years ago to the current year. View historical data for Aduro Clean Technologies and its competitors. Aduro Clean Technologies's current 5-Year Share Buyback Ratio is -53.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aduro Clean Technologies stock overvalued right now?
Based on GuruFocus' analysis, Aduro Clean Technologies (TSX:ACT) is currently considered Significantly Overvalued. The stock's GF Value™ is C$4.57, compared to a current price of C$22.15 — trading 384.7% above its estimated fair value. The current 5-Year Share Buyback Ratio is -53.70. Aduro Clean Technologies' overall GF Score™ is 43/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 5-Year Share Buyback Ratio calculated?
5-Year Share Buyback Ratio is calculated from a company's financial statements. For Aduro Clean Technologies (TSX:ACT), the current 5-Year Share Buyback Ratio is -53.70 as of Feb. 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 Aduro Clean Technologies (TSX:ACT) Overvalued in 2026?
Based on GuruFocus' analysis, Aduro Clean Technologies stock appears to be overvalued.
The current stock price of C$22.15 is trading 384.7% above its estimated GF Value™ of C$4.57.
GuruFocus considers Aduro Clean Technologies to be Significantly Overvalued.
Key valuation signals for TSX:ACT:
5-Year Share Buyback Ratio: -53.70
GF Value™: C$4.57 vs. price of C$22.15 (384.7% above fair value)
No single metric tells the full story. See the TSX:ACT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Aduro Clean Technologies Inc is engaged in development and commercialization of its Hydrochemolytic technology (HCT) to create higher-value chemicals and fuels from lower-value feedstocks including waste plastics. It focuses on developing environmentally responsible technology for converting end-of-life plastics and tire rubber to specialty chemicals and fuels that replace petroleum, upgrading of heavy crude oils and the transformation of renewable oils into renewable fuels and specialty chemicals.
43GF Score
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5-Year Share Buyback Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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