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Onto InnovationMEX:ONTO 62 3-Year Share Buyback Ratio is -0.70 as of Jun. 2026. GuruFocus rates MEX:ONTO with a GF Score™ of 62/100 and a GF Value™ of MXN2,958.16 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 746 Semiconductors companies, Onto Innovation ranks better than 58.31% 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. Onto Innovation's current 3-Year Share Buyback Ratio was -0.70%.
The historical rank and industry rank for Onto Innovation's 3-Year Share Buyback Ratio or its related term are showing as below:
MEX:ONTO'
s 3-Year Share Buyback Ratio Range Over the Past 10 Years
Min: -26 Med: -1.4 Max: 1.9
Current: -0.7
During the past 13 years, Onto Innovation's highest 3-Year Share Buyback Ratio was 1.90%. The lowest was -26.00%. And the median was -1.40%.
MEX:ONTO's 3-Year Share Buyback Ratio is ranked better than 58.31% of 746
companies
in the Semiconductors industry
Industry Median: -1.4
vs MEX:ONTO: -0.70
Onto Innovation (MEX:ONTO) 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.
Onto Innovation 3-Year Share Buyback Ratio Related Terms
MEX:ONTO vs NVMI, AMKR, FORM: 3-Year Share Buyback Ratio Comparison
For the Semiconductor Equipment & Materials subindustry, Onto Innovation'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.
Onto Innovation 3-Year Share Buyback Ratio vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Onto Innovation's 3-Year Share Buyback Ratio distribution charts can be found below:
* The bar in red indicates where Onto Innovation's 3-Year Share Buyback Ratio falls into.
Onto Innovation 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 -0.70 mean?
Onto Innovation (MEX:ONTO) has a 3-Year Share Buyback Ratio of -0.70 as of Jun. 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 Onto Innovation and its competitors. According to the industry distribution chart, Onto Innovation ranks #311 out of 746 companies in the Semiconductors industry, placing it in the top 41.7%.
Is Onto Innovation's 3-Year Share Buyback Ratio too high?
Onto Innovation's current 3-Year Share Buyback Ratio is -0.70. Based on the distribution chart, Onto Innovation ranks #311 out of 746 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Onto Innovation has a GF Score™ of 62/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Onto Innovation's 3-Year Share Buyback Ratio compare to NVMI and AMKR?
According to the Semiconductors industry distribution chart, Onto Innovation ranks #311 out of 746 companies for 3-Year Share Buyback Ratio. This puts Onto Innovation in the upper 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 a Semiconductors company?
A good 3-Year Share Buyback Ratio depends on the Semiconductors 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 Onto Innovation and its competitors. Onto Innovation's current 3-Year Share Buyback Ratio is -0.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Onto Innovation stock overvalued right now?
Based on GuruFocus' analysis, Onto Innovation (MEX:ONTO) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN2,958.16, compared to a current price of MXN4,520.00 — trading 52.8% above its estimated fair value. The current 3-Year Share Buyback Ratio is -0.70. Onto Innovation's overall GF Score™ is 62/100 with 4 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 Onto Innovation (MEX:ONTO), the current 3-Year Share Buyback Ratio is -0.70 as of Jun. 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 Onto Innovation (MEX:ONTO) Overvalued in 2026?
Based on GuruFocus' analysis, Onto Innovation stock appears to be overvalued.
The current stock price of MXN4,520.00 is trading 52.8% above its estimated GF Value™ of MXN2,958.16.
GuruFocus considers Onto Innovation to be Significantly Overvalued.
Key valuation signals for MEX:ONTO:
3-Year Share Buyback Ratio: -0.70
GF Value™: MXN2,958.16 vs. price of MXN4,520.00 (52.8% above fair value)
No single metric tells the full story. See the MEX:ONTO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Onto Innovation Inc is engaged in the design, development, manufacture, and support of high-performance control metrology, defect inspection, lithography, and data analysis systems used by microelectronics device manufacturers. The Company and its subsidiaries currently operate in a single operating segment. The company mainly operates in the United States, Southeast Asia, China, Japan, and Europe, with Taiwan and South Korea the sources of total revenue.
62GF Score
Get the complete analysis for MEX:ONTO
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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