Zscaler posted 25% revenue growth, 25% ARR growth and a record 23% non-GAAP operating margin, but the stock still trades at a premium valuation. The report lands on a Hold with fair value set at $180.
Zscaler (ZS) is a high-quality cloud security platform with strong recurring growth, expanding product breadth and improving operating leverage, but the shares still command a premium valuation while the company remains GAAP unprofitable. Fiscal Q3 2026 revenue reached $850.5M, up 25% year over year, ARR reached $3.5B, up 25%, and non-GAAP operating margin reached a record 23%. Those results support the growth case. The counterweight is a 39.5x forward P/E, a 2.0x PEG ratio, a 8.7x EV-to-revenue multiple and a fiscal 2027 growth outlook of 16% to 17%.
The core investment argument rests on Zscaler's Zero Trust Exchange. The platform connects users, applications, workloads, branches and AI agents without placing users on a corporate network. That architecture supports recurring subscription revenue, high gross margins and expansion into data security, AI protection and security operations.
The risk-reward profile fits a moderate-risk investor who can tolerate software-stock volatility and hold through a medium-term growth cycle. The recommendation is Hold, with an estimated fair value of $180. The business deserves a premium for its 25% ARR growth, $1.2B of fiscal 2025 free cash flow and expanding platform, but the multiple leaves less room for slower growth, sales execution issues or heavier infrastructure spending.
Zscaler operates as a cloud security company headquartered in San Jose, California. Founded in 2007 and listed on Nasdaq since March 2018, the company employs 7,923 people and serves customers across more than 185 countries. Its customer base exceeds 9,400 organizations, including roughly 40% of the Forbes Global 2000 and more than 45% of Fortune 500 companies.
The business sells recurring subscriptions built around the Zero Trust Exchange, a cloud-native, multitenant platform. The platform processes more than 500B transactions per day across more than 160 public exchanges, while the 2025 10-K says Zscaler blocks more than 225M threats and performs more than 250,000 security updates each day.
Revenue grew from $1.6B in fiscal 2023 to $2.2B in fiscal 2024 and $2.7B in fiscal 2025. Fiscal 2025 revenue growth was 23%, following 34% growth in fiscal 2024. The company posted a fiscal 2025 net loss of $41.5M, down from a $57.7M loss in fiscal 2024 and a $202.3M loss in fiscal 2023.
Zscaler reports one reportable segment, with fiscal 2025 revenue of $2.7B. The absence of separate financial reporting does not mean the product portfolio is narrow. The company organizes its platform around Zero Trust Everywhere, Data Security Everywhere, Security for AI and Agentic Operations.
Zero Trust Everywhere includes Zero Trust Users, Zero Trust Cloud and Zero Trust Branch. These products address workforce access, workload communications, branch connectivity, factories, campuses and connected devices. Data Security Everywhere includes data loss prevention, SaaS security, email security and data security posture management.
The newer businesses already show measurable traction. Data security ARR crossed $500M and grew more than 30% year over year. Zero Trust Branch ARR approximately tripled year over year, while non-seat-based metered products generated just over 30% of new ACV in Q3 and related ARR grew more than 100% year over year.
AI Protect bookings exceeded $100M over the prior 12 months. Red Canary contributed $127M of ARR at the end of Q3, and management expects approximately $137M of Red Canary ARR in fiscal 2026. These figures show that Zscaler is shifting from a workforce-access product toward a broader security platform.
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The Zero Trust Exchange is Zscaler's flagship product and the foundation for the company's cross-selling strategy. Zscaler Internet Access protects connections to internet and SaaS applications, while Zscaler Private Access connects authorized users directly to private applications without placing them on the corporate network.
The architecture uses identity, device posture, application and policy information to govern access. Zscaler's 10-K describes the result as application-level access through temporary microtunnels rather than broad network access. That design reduces the path available for lateral movement after a credential or device compromise.
The product also includes cloud sandboxing, browser isolation, data loss prevention, cloud access security broker functionality and digital experience monitoring. Zscaler Digital Experience measures performance across users, applications and locations, giving the platform a route into IT operations as well as security budgets.
Zscaler's main advantage is architectural rather than cosmetic. Its cloud-native, multitenant model was designed for users working outside a traditional corporate perimeter. The 2025 10-K states that the platform can block a newly detected threat across its customer base within minutes, creating a security effect that strengthens with traffic volume and threat data.
Scale adds weight to that design. The company processes more than 500B daily transactions across 160 public exchanges, and management says this produces a telemetry dataset with breadth and fidelity that competitors cannot easily match. That data supports threat detection, policy enforcement and AI-powered security capabilities.
Zscaler is extending the same architecture to AI agents. The planned Symmetry Systems acquisition adds an access graph that maps relationships among identities, applications and data sources. Partnerships with Anthropic and OpenAI, along with the AI Protect portfolio, give the company a product path into prompt inspection, AI asset discovery, guardrails and continuous red teaming.
The moat is strengthened by customer expansion. Zscaler exited Q3 with more than 700 Zero Trust Everywhere enterprises, up from more than 550 in Q2. Z-Flex generated more than $480M of transaction value in Q3, up more than 60% sequentially, and exceeded $1B over the prior 12 months with an average four-year term.
Zscaler is primarily a subscription software company, but its cloud platform and Zero Trust Branch products require data-center equipment and branch appliances. Management identified rising memory, storage and processor prices as a cost pressure during the fiscal Q3 call.
The company raised prices on its branch appliance earlier in calendar 2026 and pulled some fiscal 2027 equipment purchases into fiscal Q4 to lock in current prices. Fiscal 2026 capital expenditures are now expected to reach the high single digits as a percentage of revenue, compared with a prior mid-single-digit view. Fiscal 2027 capital expenditures are expected to rise by up to 200 basis points relative to fiscal 2026.
The latest quarterly financial series shows $198.0M of operating cash flow and $62.1M of capital expenditures in the quarter ended April 30, 2026. Free cash flow was $136.0M. The spending increase is a manageable risk because the company generated $726.7M of fiscal 2025 free cash flow, but it reduces the immediate cash conversion benefit of higher operating income.
Zscaler operates in cloud security, zero trust access, secure access service edge and related systems software markets. Gartner estimates that the SASE market will grow at a 26.0% compound annual rate and reach $28.5B by 2028. Gartner also projects enterprise cybersecurity software and network security spending of $118.5B in 2025, up 14%.
The broader software backdrop is also supportive. Gartner reported enterprise software revenue of $899.9B in 2024, with cloud subscription revenue representing 60.1% of the market. Gartner projects worldwide software spending of $1.4T in 2026, up 14.7% from 2025.
Zscaler's own investor materials identify a serviceable addressable market above $120B. The disclosed components include $30B for Zero Trust Users, $23B for Zero Trust Cloud, $20B for Data Security Everywhere, $19B for Agentic Operations, $16B or more for Securing AI and $12B for Zero Trust Branch.
The market is moving toward platform consolidation. Gartner's 2025 SASE research covers both single-vendor and dual-vendor buying models, while its roadmap research describes networking and security convergence as a central buyer trend. Zscaler benefits when customers replace VPNs, firewalls and separate security tools, although vendors with broader networking portfolios have a natural bundling advantage.
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Zscaler targets large enterprises and public-sector organizations with distributed users, cloud workloads and complex application environments. The company serves financial services, healthcare, insurance, manufacturing, automotive, transportation, energy, telecommunications, technology and government customers.
At the end of fiscal Q3 2026, 748 customers generated more than $1M of ARR, up 18% year over year, while 4,003 customers generated more than $100,000 of ARR, up 19%. Total customers exceeded 9,400. Management says the company serves roughly 4,500 enterprises within a primary target market of approximately 20,000 enterprises.
Customer expansion is a central growth engine. A healthcare system signed an eight-figure Zero Trust Branch upsell covering 2,000 sites and replacing a major firewall incumbent and a legacy VPN incumbent. A financial technology customer signed a seven-figure AI Protect upsell, while a federal agency expanded into six of eight data security modules.
Geographic results were broad but uneven. The Americas represented 56% of Q3 revenue and grew approximately 31% year over year. EMEA represented 28% and grew approximately 16%, while APJ represented 16% and grew approximately 23%. The mix gives Zscaler several regional growth avenues, but the slower EMEA rate deserves attention in future operating results.
Zscaler competes with Palo Alto Networks (PANW), Cisco (CSCO), Fortinet (FTNT), Broadcom (AVGO), Netskope, Cato Networks, Cloudflare (NET), Check Point and other security vendors. The competitive field spans secure web gateways, firewalls, VPN replacement, cloud access security broker products, data loss prevention, endpoint security and security operations.
Zscaler is strongest when a buyer wants cloud-delivered security, identity-based access and a platform that can replace legacy network infrastructure. Its Zero Trust Exchange does not depend on placing users inside a corporate network, and its products connect users directly to specific applications.
Palo Alto Networks, Cisco and Fortinet counter with broad portfolios that combine networking, firewalls, endpoint products and security operations. That breadth can support bundled pricing and consolidated procurement. Netskope and Cato compete more directly in cloud security and SASE, while Cloudflare brings a large global network and adjacent application infrastructure.
Zscaler's defense is the depth of its cloud-native architecture and the expansion of its installed base. The Q3 healthcare and automotive wins show displacement of legacy infrastructure, while the more than 700 Zero Trust Everywhere customers show that the platform strategy is moving beyond the initial user-access use case.
The macro setting supports enterprise security spending through cloud adoption, AI deployment and digital transformation. Gartner reported that generative AI models were the fastest-growing enterprise software market in 2024, with 320.4% growth, and expects generative AI model spending to grow 80.8% in 2026.
AI adoption creates a specific security requirement for Zscaler's platform. Management cited frontier models such as Mythos, AI agents, prompt injection and data leakage as threats that increase the need to control identities, applications and data flows. Zscaler's AI Protect bookings above $100M provide an early commercial marker for that demand.
Public-sector and healthcare demand also supported the latest quarter. Management said net new ARR benefited from state, local and federal government customers and healthcare, including an approximately eight-figure federal upsell. The exposure creates a durable demand channel, although sales cycles and procurement timing in those markets can affect quarterly results.
The international footprint adds both resilience and execution complexity. Zscaler serves customers in more than 185 countries, with Q3 revenue growth of approximately 31% in the Americas, 16% in EMEA and 23% in APJ. The regional spread reduces dependence on one geography, while the EMEA slowdown demonstrates that growth rates can vary materially by market.
Zscaler ended fiscal Q3 2026 with a strong cash position and manageable leverage, but the report still flags valuation and profitability as the bigger swing factors.
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Get Full Access →Fiscal Q3 2026 revenue rose 25% year over year to $850.5M while non-GAAP operating margin hit a record 23%, showing clear operating leverage.
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Get Full Access →Management is guiding fiscal 2027 growth to 16% to 17%, a step down from the 25% ARR pace that has powered the stock’s premium multiple.
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Get Full Access →At 39.5x forward P/E, 2.0x PEG and 8.7x EV/revenue, Zscaler still screens expensive even after its strong execution.
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Get Full Access →The report’s fair value is $180, and the Hold call reflects solid fundamentals that are already priced into the shares.
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Get Full Access →Zscaler has built one of the clearest cloud-native security platforms in the public software market. The Zero Trust Exchange processes more than 500B transactions per day, serves more than 9,400 customers and now reaches users, workloads, branches, data stores and AI applications. Q3 results showed that the platform is still expanding, with revenue and ARR growth of 25%, record non-GAAP operating margin of 23% and more than 700 Zero Trust Everywhere enterprises.
The investment case is not without friction. Fiscal 2027 growth is expected to slow to 16% to 17%, GAAP profitability remains negative, free cash flow margin guidance fell to 22.8% to 23.3% and capital expenditures are rising. Two sales leaders also departed at the end of fiscal Q3, prompting more cautious guidance.
The result is a strong business at a demanding price. Zscaler earns a Hold recommendation for a medium-term, moderate-risk portfolio, with $180 as the report's fair value estimate. A materially lower entry price would improve the margin of safety, while a materially higher price would require faster growth and cleaner GAAP earnings than the current outlook provides.
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Zscaler’s selloff looks like a market tantrum over guidance quality and cash-flow expectations, not evidence that the business suddenly cracked. A company still growing revenue and ARR at 25% with a more tangible AI-security platform story does not deserve to be treated like a broken software name.
Zscaler, Inc. (ZS) tumbles after its latest earnings report as investors react to a sharply lower free cash flow margin outlook. The company still posted strong revenue, ARR, and EPS growth, but the guidance reset overshadowed the beat and triggered a steep after-hours selloff.
Zscaler posted 25% revenue growth, record Q3 operating margin, and expanding traction in data security, branch, and AI products. The stock earns a Buy, but decelerating growth and higher capex keep valuation discipline important.