AI security demand remains healthy, but fiscal 2027 guidance suggests the company’s expansion rate is entering a more mature phase.

Key Takeaways

  • Zscaler’s fiscal fourth-quarter revenue reached $898.

  • Management’s fiscal 2027 revenue outlook implies growth of roughly 17%, a meaningful deceleration from fiscal 2026.

  • Companies need to secure employee access, cloud workloads and autonomous agents without placing them directly on corporate networks.

  • Billings, ARR and large-customer growth will show whether guidance is deliberately conservative.

A strong finish

Zscaler’s fiscal fourth-quarter revenue reached $898.2 million, up 25%, while adjusted earnings of $1.19 per share exceeded expectations. Full-year revenue and ARR also grew 25%.

Why the stock declined

Management’s fiscal 2027 revenue outlook implies growth of roughly 17%, a meaningful deceleration from fiscal 2026. Investors looked past the quarterly beat and focused on whether slower expansion is temporary or reflects a more mature core business.

AI creates demand and competition

Companies need to secure employee access, cloud workloads and autonomous agents without placing them directly on corporate networks. Zscaler argues that its zero-trust architecture is suited to that challenge. Yet cybersecurity budgets remain crowded, with platform vendors competing for consolidation dollars.

What investors should monitor

Billings, ARR and large-customer growth will show whether guidance is deliberately conservative. Free cash flow also matters because profitability can offset slower revenue growth. Restructuring and sales execution should be watched for evidence that the company is adjusting its cost base.

The bottom line

Zscaler’s business is still growing, but the valuation debate has shifted from product relevance to growth durability. A strong security platform can remain strategically important while its stock struggles if forward growth resets faster than investors expected.

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