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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. Harmonic Drive Systems's current 3-Year Share Buyback Ratio was 0.10%.
The historical rank and industry rank for Harmonic Drive Systems's 3-Year Share Buyback Ratio or its related term are showing as below:
HSYDF'
s 3-Year Share Buyback Ratio Range Over the Past 10 Years
Min: -46.4 Med: 0 Max: 0.5
Current: 0.1
During the past 13 years, Harmonic Drive Systems's highest 3-Year Share Buyback Ratio was 0.50%. The lowest was -46.40%. And the median was 0.00%.
HSYDF's 3-Year Share Buyback Ratio is ranked better than 75.35% of 1858
companies
in the Industrial Products industry
Industry Median: -1.1
vs HSYDF: 0.10
Harmonic Drive Systems (OTCPK:HSYDF) 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.
Harmonic Drive Systems 3-Year Share Buyback Ratio Related Terms
HSYDF vs GEV, ETN, PH: 3-Year Share Buyback Ratio Comparison
For the Specialty Industrial Machinery subindustry, Harmonic Drive Systems'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.
Harmonic Drive Systems 3-Year Share Buyback Ratio vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Harmonic Drive Systems's 3-Year Share Buyback Ratio distribution charts can be found below:
* The bar in red indicates where Harmonic Drive Systems's 3-Year Share Buyback Ratio falls into.
Harmonic Drive Systems 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 0.10 mean?
Harmonic Drive Systems (HSYDF) has a 3-Year Share Buyback Ratio of 0.10 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 Harmonic Drive Systems and its competitors. According to the industry distribution chart, Harmonic Drive Systems ranks #458 out of 1858 companies in the Industrial Products industry, placing it in the top 24.7%.
Is Harmonic Drive Systems' 3-Year Share Buyback Ratio too high?
Harmonic Drive Systems' current 3-Year Share Buyback Ratio is 0.10. Based on the distribution chart, Harmonic Drive Systems ranks #458 out of 1858 companies in the Industrial Products industry, which is in the top quartile — a strong position relative to peers. Overall, Harmonic Drive Systems has a GF Score™ of 76/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Harmonic Drive Systems' 3-Year Share Buyback Ratio compare to GEV and ETN?
According to the Industrial Products industry distribution chart, Harmonic Drive Systems ranks #458 out of 1858 companies for 3-Year Share Buyback Ratio. This places Harmonic Drive Systems in the top 25% 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 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 Harmonic Drive Systems and its competitors. Harmonic Drive Systems's current 3-Year Share Buyback Ratio is 0.10. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Harmonic Drive Systems stock overvalued right now?
Based on GuruFocus' analysis, Harmonic Drive Systems (HSYDF) is currently considered Significantly Overvalued. The stock's GF Value™ is $23.78, compared to a current price of $34.75 — trading 46.1% above its estimated fair value. The current 3-Year Share Buyback Ratio is 0.10. Harmonic Drive Systems' overall GF Score™ is 76/100 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 Harmonic Drive Systems (HSYDF), the current 3-Year Share Buyback Ratio is 0.10 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 Harmonic Drive Systems (HSYDF) Overvalued in 2026?
Based on GuruFocus' analysis, Harmonic Drive Systems stock appears to be overvalued.
The current stock price of $34.75 is trading 46.1% above its estimated GF Value™ of $23.78.
GuruFocus considers Harmonic Drive Systems to be Significantly Overvalued.
Key valuation signals for HSYDF:
3-Year Share Buyback Ratio: 0.10
GF Value™: $23.78 vs. price of $34.75 (46.1% above fair value)
No single metric tells the full story. See the HSYDF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Harmonic Drive Systems manufactures and sells high-precision reduction gears (harmonic reducers) under the Harmonic Drive brand as well as other mechatronics products, including rotary actuators, linear actuators, and AC servo motors. The company also provides planetary gear speed reducers under the AccuDrive and Harmonic Planetary brands. Its products are used in industrial robots, semiconductor production equipment, and other high-precision equipment. HDS was founded in 1970 and is headquartered in Tokyo, Japan.
76GF Score
Get the complete analysis for HSYDF
3-Year Share Buyback Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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