Zscaler (ZS)

Investment Review After Q3 FY2026 Earnings (stock price as of 2026.07.10)

TL;DR

Zscaler runs the Zero Trust Exchange — a cloud-native security platform that routes company internet and app traffic through its own cloud instead of legacy firewalls and VPNs. Just reported: Q3 FY2026 revenue $850M (+25%) with a record 23% operating margin and ARR crossing $3.5B. Yet the stock has crashed ~56% from its mid-2025 peak (to $139) as the multiple compressed from 92x to 30x P/E. Down 46% over 5 years, it's now cheap for the growth. The risk: organic growth is decelerating (FY2027 guided just +16–17%), and ~25%-of-revenue stock comp keeps GAAP profits negative.

Summary

Finding	Assessment
5-Year Stock Return	$139.27 now vs $258.88 five years ago (−46%); a volatile, ultimately-down name.
Business Model	Cloud-native Zero Trust security SaaS (the Zero Trust Exchange); subscription/consumption.
Competitive Moat	MODERATE Purpose-built inline security cloud + platform breadth + switching costs.
Past 5-YR Drivers	Zero Trust adoption, land-and-expand (~115% NRR), and platform expansion.
Recent Stock Move	$139.27 now vs $171.77 (Oct 2024); crashed ~56% from the 2025 peak on the growth reset.
Revenue Trend	DECELERATING YoY revenue growth 25.4%→22.4% (Q3'26→Q4'26E).
Margin Trend	Slight Up Margin 23.0%→23.0% (Q3'26→Q4'26E).
TTM OP Trajectory	DECELERATING TTM OP QoQ +7.5%→+6.2% (Q3'26→Q4'26E).
Key Opportunities	Emerging products (Data Security/AI/SecOps), AI-era security, and a cheaper multiple.
Key Risks	Decelerating organic growth, competition + new-logo softness, and SBC dilution / FCF cut.
Catalysts	Q4 FY2026 print (early Sept), FY2027 delivery, and AI-security monetization.
P/E(ttm) Valuation	30x — de-rated from ~92x; cheap for the growth if it stabilizes.

What Just Reported

Revenue $850M (+25%) and ARR crossed $3.5B (+25%) — a beat, with a record 23% operating margin. Non-GAAP operating income rose +34% to $196M and non-GAAP EPS was $1.08 (+29%); free cash flow was $136M.
But the growth mix is the story: ARR growth ex the Red Canary acquisition was only +21%, and net new ARR grew just +14% ex-Red Canary — with the full-year implying ~9.5% organic net-new. Large-customer counts kept rising (748 with >$1M ARR, 4,003 with >$100K).
Emerging products are scaling: Data Security crossed $500M ARR (+30%), AI Protect passed $100M in trailing bookings, Zero Trust Everywhere reached 700+ enterprises (2–3× ARR uplift), and metered/AI-agent usage is now >30% of new bookings.

Guidance: Q4 FY2026, Full Year & FY2027

Q4 FY2026: revenue $875–878M (+22%) and non-GAAP EPS $1.08–1.09. FY2026: revenue $3.33B (+25%), ARR $3.74B (+24%), and EPS $4.10–4.11 (+25%).
The FCF guide was CUT — FY2026 free-cash-flow margin to 22.8–23.3% (from 26.5–27%) — as memory/storage/processor costs spike from AI-datacenter demand and Zscaler pulls forward hardware purchases.
The preliminary FY2027 outlook is soft: total ARR and revenue growth of just +16–17% — a clear step down from ~25% and the crux of the market's concern.

Key Takeaways from Earnings Call

Zscaler is positioning as the "security platform for the AI era." Management argues AI models find software vulnerabilities at machine speed and that AI agents are the "new weakest link"; it partnered with Anthropic and OpenAI, but explicitly is not yet baking AI-security revenue into guidance — it expects impact in FY2027.
The bear case is decelerating organic growth. The headline +25% ARR is flattered by the $675M Red Canary acquisition; ex-acquisition net-new ARR is running ~9.5%, new-logo growth is soft, and management guided FY2027 to just +16–17%.
Two sales leaders departed at the end of the quarter, prompting a deliberately cautious guide during the transition — a red flag the market weighed heavily.
Emerging products are the reacceleration hope. Data Security (>$500M ARR), AI Protect, Zero Trust Everywhere (2–3× uplift), Zero Trust Branch (~tripled), and Red Canary's move into an "agentic SOC" are diversifying growth beyond the ZIA/ZPA core.
Cash generation is strong but stock comp is heavy. Free cash flow exceeds operating profit, but stock-based compensation runs ~25% of revenue, so on a GAAP basis Zscaler still posts an operating loss — the profitability is non-GAAP.

Key Segments and Revenue Mix (FY2025)

Component	ARR / Scale	% / Growth	Key Details
Core Zero Trust (ZIA/ZPA/ZDX)	Majority of $3.5B ARR	mid-teens	Secure internet + private access + digital experience — the foundation.
Data Security Everywhere	>$500M ARR	+30%+	Data protection (8 modules); the largest emerging pillar.
Emerging (AI Protect, ZT Branch, SecOps)	growing 2–3×	fast	AI Protect >$100M bookings; Red Canary MDR $127M ARR; metered >30% of new bookings.
Total	$3.5B ARR (+25%)	100%	Revenue $2.67B (FY2025); >9,400 customers; ~80% gross margin.

Business Model

SUPPLIERS

150+ global data-center points-of-presence
Memory / storage / processors (AI-cost inflation)
R&D engineers
AI model partners (Anthropic, OpenAI)

Cloud infra / R&D →

ZSCALER

Zero Trust Exchange (ZIA / ZPA / ZDX)
+ Data Protection, AI security, Red Canary MDR
Subscription / consumption model
NRR ~115%; ~80% gross margin

Zero Trust SaaS → $ Subscription ARR

CUSTOMERS

9,400+ enterprises, 50M+ users
>45% of the Fortune 500
CISOs & security teams
Sold via VAR & GSI channel partners

Moat Assessment: MODERATE

A purpose-built security cloud. Zscaler operates 150+ global points-of-presence that inspect traffic inline at massive scale — a cloud-native architecture that legacy appliance vendors can't easily replicate and that took years to build.
Inline position + expansion. Once an enterprise routes its internet and app traffic through Zscaler, switching is disruptive; ~115% net retention and 2–3× uplift from Zero Trust Everywhere show durable expansion.
So we rate it MODERATE, not wide. Securing AI is a tailwind, but platform vendors (Palo Alto, Microsoft) bundle competing SSE, it is a single-architecture bet, organic growth is decelerating, and ~25%-of-revenue stock comp keeps GAAP earnings negative — the architecture is strong but the premium is not guaranteed.

Stock vs. Earnings — 5-Year Performance

Stock currently $139.27, down 46% from $258.88 (5 years ago). It's been a wild ride: Zscaler boomed to ~$315 in mid-2025, then crashed ~56% to ~$137 by April 2026 as the growth-durability thesis came into question.
The business itself compounded: revenue roughly tripled to a $3.3B run-rate, ARR crossed $3.5B, and TTM operating profit reached $800M at a record 23% non-GAAP margin.
The multiple did the damage: P/E compressed from ~92x at the 2025 peak to 30x today — a bubble-multiple reset, not an earnings collapse.

Chart 1: Stock vs TTM Operating Profit & Free Cash Flow

Past 5-Year Key Drivers

Zero Trust adoption. Zscaler rode the shift away from firewall/VPN-centric networks to cloud-delivered Zero Trust, growing from ~$1.6B to a $3.3B revenue run-rate as enterprises re-architected security.
Land-and-expand. Net revenue retention held around 115–125% as customers added products and users; large-customer counts (>$1M and >$100K ARR) compounded ~18–19% a year.
Platform expansion. Zscaler broadened from its ZIA/ZPA core into Data Protection, AI security, segmentation, and (via Red Canary) managed detection — an ever-widening platform.

Quarterly Key Metrics

USD	Q4'24	Q1'25	Q2'25	Q3'25	Q4'25	Q1'26	Q2'26	Q3'26	Q4'26E	Q1'27E
Quarter End	Jul 2024	Oct 2024	Jan 2025	Apr 2025	Jul 2025	Oct 2025	Jan 2026	Apr 2026	Jul 2026	Oct 2026
Stock	$192.19	$171.77	$183.13	$207.14	$315.32	$296.90	$227.42	$137.26	$141.10	$139.27
Stock QoQ	0%	-11%	7%	13%	52%	-6%	-23%	-40%	3%	-1%
Rev YoY	30%	26%	23%	23%	21%	26%	26%	25%	22%	21%
OM%	22%	21%	22%	22%	22%	22%	22%	23%	23%	23%
R40	52%	48%	45%	44%	43%	47%	48%	48%	45%	44%
TTM OP	$442M	$487M	$524M	$549M	$580M	$618M	$658M	$708M	$751M	$800M
TTM OP QoQ	10%	10%	8%	5%	6%	7%	7%	7%	6%	6%
FCF/OP	144%	147%	147%	141%	139%	150%	144%	136%	139%	114%
Debt/EBITDA	1.9x	1.7x	1.6x	1.5x	2.1x	2.0x	1.9x	1.7x	1.7x	1.7x
P/E	57x	50x	53x	61x	92x	83x	59x	34x	33x	30x

Recent Stock Performance & Drivers

Stock currently $139.27, vs. $171.77 (Oct 2024) — down ~19% over two years, and down ~56% from the ~$315 mid-2025 peak.
The de-rating reflects the quality of growth, not a collapse: organic net-new ARR decelerated (the headline +25% is acquisition-flattered), FY2027 was guided to just +16–17%, two sales leaders departed, and the FCF-margin guide was cut on hardware costs.
Cash generation is genuinely strong (FCF/OP consistently above 100%), but stock-based comp of ~25% of revenue keeps GAAP operating income in the red — the profitability story is non-GAAP.

Opportunities

Emerging products. Data Security (>$500M ARR), AI Protect (>$100M bookings), Zero Trust Everywhere (2–3× uplift), and metered/AI-agent usage (>30% of new bookings) diversify growth beyond the maturing ZIA/ZPA core.
AI-era security. Securing AI apps and agents — with Anthropic/OpenAI partnerships — is a large new vector Zscaler says is not yet in the numbers, with impact expected in FY2027.
Valuation + TAM. At 30x (down from 92x), the stock is cheap for a 20%+ grower, against a $120B+ addressable market with only ~23% of target enterprises penetrated.

Challenges

Decelerating organic growth. Ex-acquisition net-new ARR is running ~9.5% and FY2027 is guided to just +16–17% — undermining the durable-25%-grower thesis that supported the premium.
Competition and new-logo softness. Palo Alto, Microsoft, and Cloudflare bundle SSE, new-logo growth is weak, and two sales leaders just departed.
Dilution and FCF pressure. Stock-based comp of ~25% of revenue keeps GAAP earnings negative, and the FCF-margin guide was cut on AI-driven hardware-cost inflation.

Next 12 Months

Q4 FY2026 print (early Sept 2026) is the key catalyst. The guide is $875–878M revenue / $1.08–1.09 EPS; whether net-new ARR stabilizes and the new-logo fix plan gains traction determines the near-term path — Zscaler has been beating, so a clean beat could re-rate a 30x stock.
FY2027 delivery vs the soft +16–17% guide — whether Zscaler beats the conservative bar or the deceleration continues.
Early AI-security monetization (AI Protect, Zero Trust for AI agents) starting to show up in bookings.

Next 12-24 Months

Emerging products scaling to re-accelerate growth — Data Security, AI security, and Agentic SecOps offsetting core maturation is the bull case.
Red Canary / SecOps integration into an "agentic SOC" opens a new TAM, though MDR churn is a watch item.
The multiple's next move — a re-rating up if growth stabilizes, or continued de-rating if it doesn't — plus FCF-margin recovery as AI-driven hardware costs normalize.

Core Metrics Scorecard

	Q2'22	Q3'22	Q4'22	Q1'23	Q2'23	Q3'23	Q4'23	Q1'24	Q2'24	Q3'24	Q4'24	Q1'25	Q2'25	Q3'25	Q4'25	Q1'26	Q2'26	Q3'26	Q4'26E	Q1'27E
	Jan22	Apr22	Jul22	Oct22	Jan23	Apr23	Jul23	Oct23	Jan24	Apr24	Jul24	Oct24	Jan25	Apr25	Jul25	Oct25	Jan26	Apr26	Jul26	Oct26
R40 > 40%	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
R40 accelerate			✅				✅									✅
TTM OP QoQ > 10%			✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
TTM OP QoQ accelerate	✅		✅		✅		✅								✅			✅
TTM FCF/OP > 60%	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
Debt/EBITDA < 3.5	❌	❌	❌	❌	❌	❌	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
Total passes	3	2	5	3	4	3	6	4	4	4	4	4	3	3	4	4	3	4	3	3
Stock QoQ	+25%	-26%	-35%	+7%	-33%	+0%	+29%	+7%	+42%	-13%	+0%	-11%	+7%	+13%	+52%	-6%	-23%	-40%	+3%	-1%
P/E ttm	559x	397x	217x	191x	100x	77x	76x	68x	82x	63x	57x	50x	53x	61x	92x	83x	59x	34x	33x	30x

Zscaler passes the growth and cash tests but not acceleration. R40 sits around 48% (25% growth + 23% margin) and FCF/OP runs above 100%, but "TTM OP QoQ >10%" and R40 acceleration rarely fire as growth matures — so passes cluster at 3–4 of 6.
The stock collapsed while the scorecard held. P/E fell from ~92x to 30x with passes steady around 4 — a pure valuation reset driven by the organic-growth and FCF-margin concerns, not a quality breakdown.
FCF/OP consistently above 100% is a real strength — Zscaler is highly cash-generative — but ~25%-of-revenue stock comp means GAAP operating income is still a loss.

Chart: R40 vs Stock Price (Since 2020)

Chart: Scorecard Total Passes vs Stock Price (Since 2020)

Source: SEC EDGAR annual and quarterly filings, company earnings conference calls and presentations.

Disclaimer: This report is for educational purposes only. NO investment advice.