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Fortinet Stock Plunges 25% on Breach Report After Q3 Beat
Why is Fortinet stock down today?
Fortinet (FTNT) stock plunged about 25% to about $130 in after-hours trading on Wednesday after an unconfirmed cyber breach report and a sell-the-news reaction to its third-quarter beat.
Key numbers
| After-hours move | -25.6%about $130 per share |
|---|---|
| Q3 revenue | $2.08B+20% YoY |
| Q3 billings | $2.34B+29% YoY |
| Non-GAAP EPS | $0.91vs $0.86 expected |
| 2026 revenue outlook | $8.125B–$8.215Braised, about +20% YoY |
| Stock YTD before drop | +142%as of Oct 12 |
What happened
Fortinet (FTNT) stock plunged about 25% to about $130 in after-hours trading on Wednesday after an unconfirmed cyber breach report and a sell-the-news reaction to its third-quarter beat. Sales rose 20% from a year ago to $2.08 billion, and the company raised its full-year sales forecast. Profit per share of $0.91 also beat the $0.86 analysts expected. The stock was up about 142% this year before the drop, so some investors may have cashed out on good news. Details of the breach report are unclear.
Why it matters
Fortinet makes firewalls and other tools that protect company networks, so a breach report strikes at the trust its business depends on. Strong sales and a higher forecast did not calm investors, because the stock had already risen sharply and expectations were high. Rivals Palo Alto Networks and CrowdStrike also slid after hours, so the worry spread across cybersecurity stocks.
Who this affects
- MarketbearishMedium impact
- Cybersecurity investors face a sharp, sector-wide after-hours sell-off.
- CompanybearishHigh impact
- Fortinet shareholders lose roughly a quarter of value after hours.
- CompetitorsbearishMedium impact
- Palo Alto and CrowdStrike dropped about 6% after hours.
- IndustrymixedMedium impact
- Security vendors face trust questions; demand data stays strong.
Fortinet vs Palo Alto Networks, CrowdStrike
How we got here
Fortinet shares up 142% in 2026, trading near $192.
Fortinet reports Q3 revenue of $2.08B and raises 2026 billings guidance for the third time.
Unconfirmed reports of a cyber breach emerge after the market close.
Shares fall about 25% after hours; Palo Alto and CrowdStrike also slide.
What to watch
- Whether Fortinet confirms or denies a breach and explains its scope.2026-10-29
- How Fortinet and peers trade when regular market hours open.2026-10-29
- Fortinet Q4 results against its $2.155B–$2.245B revenue guidance.Q4 2026
Educational content only. Not investment advice.
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