Zscaler Is Very Cheap, But I'm Not Convinced After Fiscal Q4 Earnings

Zscaler reported strong Q4 performance, including 25% YoY revenue growth and a record non-GAAP operating margin, with enterprise momentum supported by 50% Fortune 500 penetration and a 115% net retention rate. However, guidance points to decelerating growth in fiscal 2027, tempering the upside. Valuation is presented as relatively attractive (historically low ~36x forward P/E), but the stock lacks the more explosive AI-driven growth trajectory of some cybersecurity peers.

Analysis

ZS is transitioning from a growth story to a quality compounder story. The margin print and enterprise penetration suggest the core franchise is intact, but the guide implies the market should stop underwriting re-rating multiple expansion on revenue alone; from here, incremental upside likely depends on FCF conversion and durable net retention rather than top-line acceleration. That makes ZS more of a cash-flow stabilizer than an AI winner, which matters because the market is paying up for security names that can claim product-led AI attach and cross-sell momentum.

The competitive read-through is mixed: ZS’s large-deal traction says budget share is not collapsing, but it also signals the company is increasingly fighting for larger platform spend against PANW and CRWD, where buyers may prefer broader suites and a clearer AI monetization path. If enterprise security budgets remain flat, ZS can hold share, but the downside is that it may be forced to defend growth with pricing or heavier sales effort, limiting operating leverage after this margin peak.

Near term, the stock can still work for 1-3 months if the market focuses on beat-and-raise mechanics and ignores the FY27 slowdown, but the 6-18 month setup is capped unless billings or AI-led upsell reaccelerate. The key falsifier is a sustained improvement in revenue growth/NRR and any upward revision to forward guidance; absent that, the low P/E may be a value trap rather than a bargain. Consensus may be underestimating how far out the slowdown is, but overestimating the chance of a meaningful multiple expansion without a new growth vector.

Key Decisions for Investors

• Tactically buy ZS only on post-earnings weakness or toward the lower end of its recent trading range; target a 8-12% rebound over 4-8 weeks if margin commentary drives estimate upgrades. Stop if management/analysts start cutting FY27 revenue assumptions again.
• Prefer a relative-value pair: long CRWD / short ZS for 3-6 months, betting the market pays a premium for clearer AI/security platform re-acceleration and stronger top-line visibility. Risk: ZS monetizes AI features faster than expected and closes the growth gap.
• If holding ZS, use call spreads instead of outright stock for the next earnings cycle to limit downside from guidance compression while keeping exposure to another margin beat. Best strike structure is 1-2 standard deviations above spot with a 1-quarter horizon.
• Set a watch item on ZS billings growth and NRR next quarter: if either falls meaningfully below current trend, reduce exposure immediately because the multiple is already discounting slower growth and has limited room for disappointment.