# Zscaler crashes 31% on worst day ever with no bottom in sight — bet on more downside

_AI-generated trading idea · SHORT · ZS_

> Canonical page: https://commonquant.ai/research/for-you/zscaler-crashes-31-on-worst-day-ever-with-no-bottom-in-sight--b142000e-0306-4ad7-a1c4-42ead2337f2f

Cybersecurity company Zscaler just suffered its worst trading day ever, losing 31% of its value after issuing cautious forward guidance and shaking up its sales leadership. The stock has already lost half its value over the past year.

## Idea

This isn't a panic-driven dip — Zscaler cut its outlook and reorganized its sales team, both signs of real trouble inside the business. When a company drops this much on fundamental problems rather than general market noise, history shows it often keeps falling as more investors throw in the towel. The stock has been sliding for a full year already, and today's 31% crash suggests the selling pressure is accelerating, not bottoming out. There could be more pain ahead before any real floor forms.

## Key details

- Symbols: ZS
- Timeframes: 1D
- Tags: \#earnings, \#cybersecurity, \#short

## Community

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## News sources

- [Earnings live updates: Zscaler stock plunges 31% on cautious guidance](https://finance.yahoo.com/markets/live/earnings-live-updates-zscaler-stock-plunges-31-on-cautious-guidance-115127526.html) — Yahoo Finance
- [Zscaler tanks 31% for worst day ever on 'prudent' guidance, sales shakeup](https://www.cnbc.com/2026/05/27/zscaler-zs-earnings-q3-2026.html) — CNBC

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