Why Is Palo Alto Networks (PANW) Stock Down 7.63% Today, Oct 16? PAN-OS Security Concerns and Tech Selloff Pressure Shares

Palo Alto Networks (PANW) fell 7.03% to $342.00 on October 16, 2026, as an exploited PAN-OS flaw and concern about new AI-security competition pressured sentiment. This draft examines the catalysts, their limits, and the technical levels shaping the next trading decision.

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