ONTO +64.7%. Thermo Fisher Scientific +28.0%, Rockwell Automation +22.6%, Trimble −23.2%, Mirion Technologies −37.3%. Weekly closes, Oct 17, 2025 = 100, log scale.

End-of-day closes (Databento EOD), the last close of each week. The four peers are the largest US-listed companies by market value in ONTO’s SEC industry (Measuring & Controlling Devices, Nec) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.