Palo Alto Networks Stock Suffers Worst 2-Day Sell-Off in 30 Months After Q4 Earnings Despite 34% Revenue Growth

Palo Alto Networks shares dropped roughly 8% on September 2 to around $332.30, falling below their 50-day moving average and marking the worst two-day decline in two and a half years, even though the company's fiscal fourth-quarter results beat expectations on nearly every headline metric. Revenue for the quarter ended July 31 came in at $3.41 billion, up 34% year over year, while adjusted earnings per share reached $1.02. Next-generation security annual recurring revenue surged 63% to $9.1 billion, and CEO Nikesh Arora highlighted that the company added nearly $1 billion of net new NGS ARR in a single quarter.

The sell-off centered on two concerns that analysts raised almost immediately after the print. First, a meaningful portion of the revenue growth was tied to recent large acquisitions, including the $25 billion purchase of identity security firm CyberArk and the $3.4 billion Chronosphere deal, which together contributed $388 million in Q3 revenue alone, prompting questions about the pace of organic growth underneath those inorganic boosts. Second, fiscal 2027 guidance pointed to roughly $14.15 billion in revenue, implying annual growth of about 23%, a sharp deceleration from the 34% posted in fiscal 2026, while NGS ARR growth is expected to slow to 22-23% from 63%.

Not all of Wall Street was negative. DA Davidson raised its Palo Alto price target and reiterated a Buy rating, citing strong results, and several analysts maintained constructive views on the company's platformization strategy. The broader cybersecurity sector also sold off in sympathy, with the Amplify Cybersecurity ETF falling about 2% and rival CrowdStrike slipping roughly 3%, though DA Davidson separately reiterated a Buy on CrowdStrike based on strong AI security demand. Palo Alto also disclosed plans to acquire agentic AI startup Console, extending an aggressive dealmaking push that investors appear to be scrutinizing more closely as the growth trajectory moderates.