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. American Superconductor's current 3-Year Share Buyback Ratio was -17.30%.
The historical rank and industry rank for American Superconductor's 3-Year Share Buyback Ratio or its related term are showing as below:
AMSC'
s 3-Year Share Buyback Ratio Range Over the Past 10 Years
Min: -32.6 Med: -10.3 Max: -0.8
Current: -17.3
During the past 13 years, American Superconductor's highest 3-Year Share Buyback Ratio was -0.80%. The lowest was -32.60%. And the median was -10.30%.
AMSC's 3-Year Share Buyback Ratio is ranked worse than 92.07% of 1854
companies
in the Industrial Products industry
Industry Median: -1.1
vs AMSC: -17.30
American Superconductor (NAS:AMSC) 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.
American Superconductor 3-Year Share Buyback Ratio Related Terms
AMSC vs EPAC, BW, TNC: 3-Year Share Buyback Ratio Comparison
For the Specialty Industrial Machinery subindustry, American Superconductor'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.
American Superconductor 3-Year Share Buyback Ratio vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, American Superconductor's 3-Year Share Buyback Ratio distribution charts can be found below:
* The bar in red indicates where American Superconductor's 3-Year Share Buyback Ratio falls into.
American Superconductor 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 -17.30 mean?
American Superconductor (AMSC) has a 3-Year Share Buyback Ratio of -17.30 as of Mar. 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 American Superconductor and its competitors. According to the industry distribution chart, American Superconductor ranks #1707 out of 1854 companies in the Industrial Products industry, placing it in the top 92.1%.
Is American Superconductor's 3-Year Share Buyback Ratio too high?
American Superconductor's current 3-Year Share Buyback Ratio is -17.30. Based on the distribution chart, American Superconductor ranks #1707 out of 1854 companies in the Industrial Products industry, which is in the bottom quartile relative to peers. Overall, American Superconductor has a GF Score™ of 79/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does American Superconductor's 3-Year Share Buyback Ratio compare to EPAC and BW?
According to the Industrial Products industry distribution chart, American Superconductor ranks #1707 out of 1854 companies for 3-Year Share Buyback Ratio. This places American Superconductor 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 3-Year Share Buyback Ratio for an Industrial Products company?
A good 3-Year Share Buyback Ratio depends on the Industrial Products 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 American Superconductor and its competitors. American Superconductor's current 3-Year Share Buyback Ratio is -17.30. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is American Superconductor stock overvalued right now?
Based on GuruFocus' analysis, American Superconductor (AMSC) is currently considered Modestly Overvalued. The stock's GF Value™ is $31.06, compared to a current price of $35.96 — trading 15.8% above its estimated fair value. The current 3-Year Share Buyback Ratio is -17.30. American Superconductor's overall GF Score™ is 79/100 with 7 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 American Superconductor (AMSC), the current 3-Year Share Buyback Ratio is -17.30 as of Mar. 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 American Superconductor (AMSC) Overvalued in 2026?
Based on GuruFocus' analysis, American Superconductor stock appears to be overvalued.
The current stock price of $35.96 is trading 15.8% above its estimated GF Value™ of $31.06.
GuruFocus considers American Superconductor to be Modestly Overvalued.
Key valuation signals for AMSC:
3-Year Share Buyback Ratio: -17.30
GF Value™: $31.06 vs. price of $35.96 (15.8% above fair value)
No single metric tells the full story. See the AMSC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
American Superconductor Corp generates the ideas, technologies, and solutions that meet the world's demand for smarter, cleaner, and energy. Through its Windtec Solutions, the company enables manufacturers to launch wind turbines quickly, effectively, and profitably. Through its Gridtec Solutions, the company provides engineering planning services and grid systems that optimize network reliability, efficiency, and performance. The company's segment includes Grid and Wind. It generates maximum revenue from the Grid segment.
79GF Score
Get the complete analysis for AMSC
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
AMSC has been successfully added to your 