MUMBAI/SAN JOSE: Zscaler Inc. (NASDAQ: ZS), the cloud security leader, saw its stock tumble as much as 12.5% to a 52-week low of $146.40 after reporting fiscal second-quarter earnings that comfortably beat estimates and raising full-year guidance . The paradoxical sell-off underscores the market's hyper-sensitivity to valuation, acquisition integration risks, and broader tech sector jitters .
Zscaler, Inc. (NASDAQ: ZS)
Zscaler reported Q2 FY2026 earnings after market close on Feb 26, 2026. The company posted EPS of $1.01, beating consensus of $0.89 by $0.12. Revenue came in at $815.8 million, above estimates of $798.32 million and up 26% YoY .
Guidance raised: Zscaler sees Q3 EPS $1.00-$1.01 (consensus $0.95) and FY26 EPS $3.99-$4.02 (consensus $3.82). Revenue guidance also raised: Q3 $834M-$836M vs $831.9M estimate; FY26 $3.31B-$3.32B vs $3.30B estimate .
Why did the stock crash despite a beat?
The 12% plunge — the worst drop in over a year — puzzled many investors. Here are the primary reasons cited by analysts and market commentators:
- Red Canary acquisition churn fears: Management disclosed "elevated churn" typical of MDR businesses, creating near-term uncertainty .
- Valuation still rich: Despite the drop, Zscaler trades at ~36x forward earnings — high for a decelerating growth story .
- Moderating organic growth: Excluding Red Canary, net new ARR grew only 7% in Q2 and ~10% H1, signaling a slowdown .
- Margin pressure & costs: Gross margin slipped to 80.2% (from 80.4%), with rising memory/storage costs flagged .
- Broader tech sell-off: Nasdaq fell alongside rising geopolitical tensions (Iran, oil) and FII outflows .
- Zacks Rank #5 (Strong Sell): Recent earnings estimate revisions triggered a bearish rating .
Red Canary: the elephant in the room
Zscaler acquired Red Canary in late 2025 to expand into managed detection and response (MDR). On the call, CFO Kevin Rubin acknowledged that churn for MDR businesses is higher than Zscaler's core, and post-acquisition churn has been "elevated" . While fiscal 2026 ARR expectations for Red Canary were raised to ~$130 million (from $95 million), the market focused on integration risks and retention uncertainty .
CEO Jay Chaudhry emphasized the strategic fit, but analysts noted that until Red Canary metrics stabilize, it will remain a drag on sentiment .
Q2 FY26 earnings snapshot
| Metric | Actual | Estimate | Beat/Miss |
|---|---|---|---|
| EPS (adjusted) | $1.01 | $0.89 | +$0.12 |
| Revenue | $815.8M | $798.32M | +2.2% |
| ARR | $3.4B | — | +25% YoY |
| Net new ARR | $156M | — | +19% |
| Operating margin (non-GAAP) | 22.2% | — | +50bps |
| Gross margin (non-GAAP) | 80.2% | — | -20bps |
Analyst take: 'Paradoxical sell-off' creates opportunity
Several research firms described the 12% drop as an overreaction, highlighting Zscaler's dominant position in AI security and Zero Trust.
TIKR model: "The market is focused on short-term Red Canary churn, overlooking the massive compound value of Zscaler's AI security moat. Our target price is $365.57, implying 118% upside" .
EDGAR Index: "Zscaler processed nearly 1 trillion AI transactions in 2025, and Zero Trust Everywhere customers surged from 130 to over 550 in 12 months. Metered usage solutions grew >100% YoY. This is a reinvigorated cybersecurity leader" .
MarketBeat: "Management highlighted accelerating customer demand tied to AI adoption, large-deal momentum, and sales productivity improvements. The raised guidance reflects confidence in durable, profitable growth" .
AI and 'Agentic' security: the long-term story
CEO Jay Chaudhry framed AI as a major growth driver: "Zscaler processed close to 1 trillion AI transactions in 2025. Our Zero Trust Exchange is uniquely positioned to secure agentic AI traffic, minimizing attack surface and enabling one-to-one direct communication" . The company's AI Protect solution and metered usage offerings (over 25% of new ACV, growing >100% YoY) are gaining traction with Fortune 500 customers .
Z-Flex momentum and large deals
Zscaler's flexible licensing program, Z-Flex, generated over $290 million in total contract value in Q2, up 65% sequentially, with cumulative TCV since launch around $650 million . The company also posted a record number of $1 million+ ARR deals, with 728 customers above that threshold .
The broader tech sector has been under pressure amid rising geopolitical tensions (Iran conflict, oil surge) and sustained FII outflows from equities . Zscaler's drop was exacerbated by its high valuation and perceived vulnerability to growth deceleration .
Valuation perspective
Despite the sharp decline, Zscaler trades at a forward P/E of ~36x and EV/sales of ~12x. While down from peak multiples, it's still at a premium to historical averages. The Zacks Value Style Score gives Zscaler an 'F', indicating it's trading at a premium compared to peers . However, bulls argue that AI security leadership and Rule-of-62 profile (26% revenue growth + 36% FCF margin) justify a premium .
What's next: catalysts to watch
- Red Canary integration updates: Churn metrics in Q3/Q4 will be closely watched .
- AI security adoption: Metered usage growth and AI Protect deal flow .
- Macro environment: Stabilisation in tech multiples and FII flows .
- Potential inclusion in key indices: Could drive passive buying .
Key takeaways for investors
- Zscaler tumbled 12% despite strong Q2 beat and raised guidance — a classic "sell-the-news" reaction amplified by valuation fears .
- Red Canary churn concerns spooked the market, though long-term strategic fit remains compelling .
- Organic growth excluding Red Canary slowed to 7% in Q2, raising questions about core momentum .
- AI security is a massive opportunity: Zscaler processed 1T AI transactions in 2025; metered usage >100% growth .
- Analysts see rebound potential: Targets range from $290 to $365, implying 100%+ upside from lows .
- Short-term volatility likely; investors should monitor Red Canary metrics and AI deal traction .
Disclaimer: The analysis and views are for information only. Please consult your advisor before taking investment decisions.