Zscaler: An Emerging AI Winner In Cloud Security Heading Into Earnings

Zscaler was initiated at Buy ahead of Q3 earnings, supported by attractive valuation and bullish technical momentum. The company already posted a strong Q2, with revenue up 26% year over year, EPS beating expectations, and free cash flow margins at 21%. FY2026 guidance was raised on accelerating AI-driven demand and customer expansions, while consensus upgrades outpaced downgrades 44 to zero.

Analysis

ZS is transitioning from a multiple-decompression story into a quality-growth re-rating candidate: when a name screens cheap while still compounding above 20% with strong cash conversion, the next leg is usually driven more by estimate revisions than by the print itself. The key second-order effect is on competitive spending behavior: if ZS continues to win large customer expansions, smaller secure-access and zero-trust vendors may be forced into either price competition or heavier discounting, which can compress near-term margins across the category.

The AI angle matters less as a buzzword and more as a demand catalyst that broadens the use case from perimeter security to workload and data protection. That creates a longer runway for module attach rates and upsell, but it also raises the bar for execution: any hint that AI-driven demand is front-loaded into a few lighthouse accounts could trigger a sharp multiple reset because the stock is already leaning on momentum and revised estimates.

Near term, the event risk is binary around guidance and billings quality, not just headline revenue. If management sounds conservative on consumption durability or large-deal conversion, the market may punish the stock despite good numbers because consensus is now clearly elevated; over the next 1-3 months, the setup is more sensitive to forward-looking commentary than to trailing beats. The contrarian view is that the move may be slightly underpriced if buy-side positioning is still underowned, but overdone if the stock has already screened into momentum funds and systematic flows ahead of earnings.

Key Decisions for Investors

• Go long ZS into earnings only on a controlled size, with a 2-4 week horizon; risk/reward favors upside if management confirms AI-led demand durability, but trim aggressively if guidance implies deceleration in FY26 second-half bookings.
• Use a call spread in ZS rather than outright equity for the event: target a 1.5-2.0x payoff if the stock re-rates on guide-up and estimate revisions, while capping downside if the market sells the news.
• Pair trade: long ZS / short a lower-quality security software peer with weaker FCF conversion and slower growth over the next 1-3 months; the goal is to isolate multiple expansion from category beta.
• If ZS gaps up strongly on earnings, look to fade a portion into strength unless billings and remaining performance obligations clearly surprise higher; momentum-owned software names often give back 20-30% of the post-print move when guidance is merely 'good enough.'
• Set a stop if the stock loses technical momentum after earnings, because this setup depends on both fundamentals and flow support; a break in the post-print trend would signal the valuation thesis is already fully reflected.