CrowdStrike, Zscaler Jump 12% as AI Safety Warnings Spark Security Bid

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Cybersecurity pure-plays surged Monday after weekend AI safety warnings from Anthropic CEO Dario Amodei and OpenAI CEO Sam Altman drove a narrow sector bid. CrowdStrike rose 12% to $232.08, Zscaler rose 12% to $183.97, and Palo Alto Networks jumped 11% to $366.40 in midday trading, while Okta joined the move as the group's identity-security peer. The First Trust NASDAQ Cybersecurity ETF rose just 4% and the SPDR S&P 500 ETF Trust fell 0.7%, leaving the wider networking and infrastructure membership of the sector fund largely out of the move. Amodei published a 3,800-word essay on Saturday calling on frontier AI companies to slow the pace at which they improve model capabilities, and Altman said he agreed, warning early Monday about losing control of the future to AI. CrowdStrike CEO George Kurtz responded over the weekend, arguing frontier labs will keep advancing regardless and that the cybersecurity industry's job is to make that development safer, after the company's Fal.Con conference introduced Falcon Guardian, SafeMind and an Agentic Identity Provider, with RBC Capital, Raymond James and Wedbush each reiterating positive ratings and raising price targets. CrowdStrike is up 98% year to date and Palo Alto is up 99%, while Zscaler is down 18% year to date; CrowdStrike's next catalyst is its Q3 FY27 report, with guidance of $1.523 billion to $1.529 billion in revenue and non-GAAP diluted EPS of $0.31, after Q2 FY27 total revenue grew 25.8% year over year to $1.47 billion and record net new ARR of $332.8 million.