🟢 Onto Innovation is trading 4.25% up in after-hours trading — catalyst remains unclear

Onto Innovation is trading at $305.00, up 4.25% after-hours, with no identified company-specific catalyst.

• This follows the October 8 regular-session close of $292.57.
• The company’s latest listed news was an October 7 analyst-event registration notice, not an apparent major catalyst.
• Semiconductor-sector weakness and broader macro concerns accompanied the regular-session decline but do not explain the opposite-direction after-hours move.