Onto Innovation Inc.ONTO
Closing prices as of Oct 23, 2026Updated once daily after the US close — not a live quote.

$198.50

-28.85% past month

Notable price movement

  • Oct 23, 2026

    $198.68+0.01%

  • Oct 22, 2026

    $198.67-10.57%

    Comparable measuring and controlling devices companies moved -1.20% on average, with two of three falling and one rising . ONTO's 10.57% drop was therefore much sharper than the cohort's move and was not shared by it. Volume was 1.6x the trailing 20-session average .

  • Oct 21, 2026

    $222.14+1.15%

    Comparable Measuring & Controlling Devices companies rose 1.41% on average, with all three of them higher . ONTO's gain of 1.15% came alongside that sector move .

  • Oct 20, 2026

    $219.62-2.94%

    Onto fell 2.94% while comparable listed companies in Measuring & Controlling Devices rose 1.86% on average, with all three rising . The decline was therefore not shared by the cohort. Seeking Alpha published an analysis of the stock, but it reported no event that explains the drop .

  • Oct 19, 2026

    $226.28+2.53%

    Onto rose 2.53% while comparable listed companies in Measuring & Controlling Devices moved -0.38% on average, with two of three falling . The gain was therefore not shared by the cohort.

  • Oct 16, 2026

    $220.70-4.85%

    Onto fell 4.85% while comparable listed companies in Measuring & Controlling Devices moved -0.80% on average, with 2 of 3 falling . The decline was therefore much steeper than the peer group's and was not shared to the same degree . The only headline was a Seeking Alpha opinion piece, which is not an event that explains the drop.

  • Oct 15, 2026

    $231.95-3.92%

    Onto fell 3.92% while comparable listed companies in measuring and controlling devices rose 2.10% on average, with 2 of 3 rising . The decline was not shared by the cohort. Volume was 1.7x the trailing 20-session average, and the session traded between 220.22 and 232.16 .

Closing prices for ONTO. Summaries describe past sessions only and are not advice, a forecast or a recommendation.

Recent news

Seeking Alpha5 days agoOnto Innovation: Fall Buyers Rewarded With 2027 GrowthPr NewswireSep 23, 2026SHAREHOLDER ALERT: Levi & Korsinsky, LLP Notifies Shareholders of an Investigation Concerning Possible Breaches of Fiduciary Duties by Certain Officers and Directors of Onto Innovation Inc. (NYSE: ONTO)The Motley FoolSep 1, 2026Onto Innovation Director Lynch Sells 1,000 Shares for $302,30024/7 Wall StAug 11, 2026Onto Innovation Jumps 6% Tuesday Following Camtek Earnings and NVIDIA’s $500 Billion PartnershipYahoo FinanceJul 5, 2026Is Onto Innovation Inc. (ONTO) A Good Stock To Buy Now?BenzingaFeb 18, 2026Exploring Onto Innovation's Earnings Expectations - Onto Innovation (NYSE:ONTO)

Headlines are published by third parties and linked as reported. Amaltash does not endorse or verify them.

Prices and financial data are historical and provided for research only. Not investment advice.