Palo Alto Networks (PANW) experienced a stock price decline despite reporting strong fiscal Q4 results on September 1, with revenue up 34% year-over-year. The shares fell roughly 7% in the session following the earnings announcement and continued to drift lower. The drop is attributed to concerns about a stretched valuation, with the stock trading at 79 times forward earnings even after the dip.
The selling pressure was likely exacerbated by the company's disclosure on September 9 of a critical vulnerability (CVE-2026-0310) in its own PAN-OS firewall software. While the flaw was found internally and no exploitation has been reported, the timing of the announcement added to a week of selling. Analysts also point to broader worries about slowing growth as a contributing factor to the stock's performance.