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ONTO
$307.82+1.03%
as of close, Sep 30, 2026
☾ AH $307.82 +1.03%
Onto Innovation Inc.Stock · IndustrialsRussell 1000 0.03%Russell 3000 0.03%US Stock Market 0.03%
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Onto Innovation Inc. monthly returns

Onto Innovation Inc. has averaged 3.74% per month, positive in 64% of months. Month-by-month returns for Onto Innovation Inc. (ONTO) below, through September 30, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.

Average month
+3.7%
81 months
Best month
+46.5%
Jun 2026
Worst month
-31.7%
Jul 2026
Positive months
64%
of all months

Onto Innovation Inc. monthly returns#

Onto Innovation Inc. total return by month
MonthTotal return
Sep 2026
+15.2%
Aug 2026
+3.3%
Jul 2026
-31.7%
Jun 2026
+46.5%
May 2026
-12.5%
Apr 2026
+43.9%
Mar 2026
-5.0%
Feb 2026
+6.8%
Jan 2026
+28.0%
Dec 2025
+10.3%
Nov 2025
+6.1%
Oct 2025
+4.4%
Sep 2025
+21.9%
Aug 2025
+11.9%
Jul 2025
-6.1%
Jun 2025
+9.8%
May 2025
-24.6%
Apr 2025
+0.5%
Mar 2025
-16.7%
Feb 2025
-28.9%
Jan 2025
+22.9%
Dec 2024
+1.5%
Nov 2024
-17.2%
Oct 2024
-4.4%
Sep 2024
-2.7%
Aug 2024
+11.5%
Jul 2024
-12.9%
Jun 2024
+1.3%
May 2024
+16.8%
Apr 2024
+2.4%
Mar 2024
-1.7%
Feb 2024
+14.0%
Jan 2024
+5.6%
Dec 2023
+8.4%
Nov 2023
+25.5%
Oct 2023
-11.9%
Sep 2023
-8.2%
Aug 2023
+11.8%
Jul 2023
+6.7%
Jun 2023
+8.5%
May 2023
+32.6%
Apr 2023
-7.9%
Mar 2023
+6.6%
Feb 2023
+4.9%
Jan 2023
+15.5%
Dec 2022
-14.8%
Nov 2022
+19.6%
Oct 2022
+4.4%
Sep 2022
-9.8%
Aug 2022
-14.7%
Jul 2022
+19.4%
Jun 2022
-13.2%
May 2022
+13.0%
Apr 2022
-18.1%
Mar 2022
+0.8%
Feb 2022
-5.8%
Jan 2022
-9.6%
Dec 2021
+7.5%
Nov 2021
+18.9%
Oct 2021
+9.6%
Sep 2021
-2.5%
Aug 2021
+5.8%
Jul 2021
-4.1%
Jun 2021
+1.8%
May 2021
+4.7%
Apr 2021
+4.3%
Mar 2021
+5.2%
Feb 2021
+15.6%
Jan 2021
+13.7%
Dec 2020
+7.6%
Nov 2020
+37.9%
Oct 2020
+7.7%
Sep 2020
-4.7%
Aug 2020
-17.4%
Jul 2020
+11.1%
Jun 2020
+9.5%
May 2020
-4.3%
Apr 2020
+9.4%
Mar 2020
-2.9%
Feb 2020
-19.4%
Jan 2020
+3.8%
Dec 2019
+8.9%
Nov 2019
+4.2%

Monthly total return (since Oct 2021)#

Methodology#

Monthly returns are total returns (dividends reinvested), computed from ONTO's split- and dividend-adjusted month-end closes. The table shows the most recent 120 months and the bar chart the most recent 60. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.

FAQ#

What is Onto Innovation Inc.'s average monthly return?
Onto Innovation Inc. (ONTO) has averaged about 3.74% per month, positive in roughly 64% of months. The best month was Jun 2026 (+46.5%) and the worst was Jul 2026 (-31.7%).

More on Onto Innovation Inc.