Onto Innovation (MEX:ONTO) Shares Buyback Ratio %: -0.20 (As of Aug. 22, 2026)

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MEX:ONTO Onto Innovation Inc MEX:ONTO
66 GF Score
Price MXN4,520.00
GF Value MXN3,452.75
Valuation Significantly Overvalued
! 1 Warning Sign
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What is Onto Innovation Shares Buyback Ratio %?

Onto Innovation MEX:ONTO 66 Shares Buyback Ratio % is -0.20 as of Aug. 22, 2026. GuruFocus rates MEX:ONTO with a GF Score™ of 66/100 and a GF Value™ of MXN3,452.75 (Significantly Overvalued). The stock has 1 warning sign investors should review.

Shares Outstanding (EOP) are shares that have been authorized, issued, and purchased by investors and are held by them.

GuruFocus calculates shares buyback ratio using previous shares outstanding minus the current shares outstanding, and then divides by previous shares outstanding. Onto Innovation's current shares buyback ratio was -0.20%.

Onto Innovation Shares Buyback Ratio % Related Terms

Onto Innovation Shares Buyback Ratio % Historical Data

* Premium members only.

The historical data trend for Onto Innovation's Shares Buyback Ratio % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Onto Innovation Shares Buyback Ratio % Chart

Onto Innovation Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shares Buyback Ratio %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -1.11 1.25 -0.83 -0.31 -0.94

Onto Innovation Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shares Buyback Ratio % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -0.20 -0.15 -1.41 -0.08 1.43
MEX:ONTO
66GF Score
Onto Innovation Inc MEX:ONTO
Shares Buyback Ratio % is just one metric. See GF Score™, valuation, warning signs, and more.
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Onto Innovation Shares Buyback Ratio % Calculation

Onto Innovation's Shares Buyback Ratio for the fiscal year that ended in Dec. 2025 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Dec. 2024 ) - Shares Outstanding (EOP) (A: Dec. 2025 )) / Shares Outstanding (EOP) (A: Dec. 2024 )
=(49.238 - 49.702) / 49.238
=-0.94%

Onto Innovation's Shares Buyback Ratio for the quarter that ended in Jun. 2026 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Mar. 2026 ) - Shares Outstanding (EOP) (A: Jun. 2026 )) / Shares Outstanding (EOP) (A: Mar. 2026 )
=(49.744 - 49.033) / 49.744
=1.43%

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about Shares Buyback Ratio % →
What does a Shares Buyback Ratio % of -0.20 mean?
Onto Innovation (MEX:ONTO) has a Shares Buyback Ratio % of -0.20 as of Aug. 22, 2026. Share buyback ratio is the percent change of a company's shares outstanding from two periods. View historical data on Onto Innovation and its competitors.
Is Onto Innovation's Shares Buyback Ratio % too high?
Onto Innovation's current Shares Buyback Ratio % is -0.20. Overall, Onto Innovation has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Onto Innovation's Shares Buyback Ratio % compare to NVMI and AMKR?
Onto Innovation's Shares Buyback Ratio % of -0.20 can be compared against companies in the Semiconductors industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shares Buyback Ratio % for a Semiconductors company?
A good Shares Buyback Ratio % depends on the Semiconductors industry context. However, Shares 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 Shares Buyback Ratio % mean?
A high Shares Buyback Ratio % can signal that a stock is expensive relative to its fundamentals. Share buyback ratio is the percent change of a company's shares outstanding from two periods. View historical data on Onto Innovation and its competitors. Onto Innovation's current Shares 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 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 MXN3,452.75, compared to a current price of MXN4,520.00 — trading 30.9% above its estimated fair value. The current Shares Buyback Ratio % is -0.20. Onto Innovation's overall GF Score™ is 66/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shares Buyback Ratio % calculated?
Shares Buyback Ratio % is calculated from a company's financial statements. For Onto Innovation (MEX:ONTO), the current Shares Buyback Ratio % is -0.20 as of Aug. 22, 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 30.9% above its estimated GF Value™ of MXN3,452.75. GuruFocus considers Onto Innovation to be Significantly Overvalued.

Key valuation signals for MEX:ONTO:

  • Shares Buyback Ratio %: -0.20
  • GF Value™: MXN3,452.75 vs. price of MXN4,520.00 (30.9% above fair value)
  • GF Score™: 66/100 with 1 warning sign

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 Business Description

Other Exchanges ONTO:USANNM:Germany
Address 16 Jonspin Road, Wilmington, MA, USA, 01887
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.
66GF Score

Get the complete analysis for MEX:ONTO

Shares Buyback Ratio % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

MXN4,520.00
Price
MXN3,452.75
GF Value