• Oct 5, 2026

  $325.41-0.72%

  ONTO closed down 0.72% while comparable companies in Measuring & Controlling Devices rose 1.93% on average [1]. All three of those peers rose, so the decline was not shared by the cohort [1].

  • 1Peer group

• Oct 2, 2026

  $327.77+4.09%

  Comparable listed companies in Measuring & Controlling Devices rose 1.01% on average, with 2 of 3 rising and 1 falling [1]. ONTO's 4.09% gain was larger than the cohort's move, so it was only partly shared by those companies [1].

  • 1Peer group

• Oct 1, 2026

  $314.88+2.29%

  ONTO rose 2.29%, while comparable listed companies in Measuring & Controlling Devices moved -0.32% on average [1]. Two of the three rose and one fell, so the move was not shared by the cohort [1].

  • 1Peer group

• Sep 30, 2026

  $307.82+1.03%

• Sep 29, 2026

  $304.69+5.52%

  The move was not shared by comparable companies. Listed peers in Measuring & Controlling Devices moved -0.02% on average on the day, with 1 of 3 falling and 2 rising [1]. ONTO rose 5.52% against that flat cohort.

  • 1Peer group

• Sep 28, 2026

  $288.74+0.38%

• Sep 25, 2026

  $287.64+2.83%

  Onto Innovation shares rose 2.83% on a day when comparable Measuring & Controlling Devices companies were essentially flat, averaging just +0.02% [1], indicating the move was not shared by its peer group. The session traded on below-average volume, at 0.5x the trailing 20-day average, within a 3.2% range [2].

  • 1Peer group
  • 2Market data

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

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