FTNT · Q3 2025 Earnings

Bullish

Fortinet

Reported November 5, 2025

30-second summary

Fortinet's Q3 print is the cleanest validation yet of the product-cycle thesis: revenue of $1.72B (+14.4% YoY) landed near the top of the guided range, non-GAAP EPS of $0.74 beat the $0.62–$0.64 guide by ten cents, and non-GAAP operating margin of 36.9% came in 340bps above the high end of the guided range. Product revenue grew 18% — accelerating from Q2's 12.6% — while management raised FY non-GAAP EPS guidance by 7.2% at the midpoint to $2.68 and narrowed FY revenue while holding the midpoint. The narrative shifted again: from "product is starting to inflect" last quarter to "SASE will be #1 in a few years and AI-driven SecOps is the fastest-growing pillar" this quarter.

Headline numbers

EPS

Q3 FY2025

$0.74

Revenue

Q3 FY2025

$1.72B

+14.4% YoY

Gross margin

Q3 FY2025

80.8%

Free cash flow

Q3 FY2025

$0.57B

Operating margin

Q3 FY2025

31.7%

Key financials

Q3 FY2025

Metric	Q3 FY2025	YoY	Q2 FY2025	QoQ
Revenue	$1.72B	+14.4%	$1.63B	+5.8%
EPS	$0.74	—	$0.64	+15.6%
Gross margin	80.8%	—	80.6%	+20bps
Operating margin	31.7%	—	28.1%	+360bps
Free cash flow	$0.57B	—	$0.28B	+99.8%

Guidance

Guidance is issued for both next quarter and the full year. Both may appear below.

Actuals vs prior guidance

Metric	Period	Prior guide	Actual	Δ	Result
Revenue	Q3 FY2025	$1.670 billion to $1.730 billion	$1.7249 billion	+0.0049B above high end of guide	Beat
Non-GAAP EPS	Q3 FY2025	$0.62 to $0.64	$0.74	+$0.10 above high end of guide	Beat
Billings	Q3 FY2025	$1.760 billion to $1.840 billion	$1.81 billion	in-line with guide (midpoint ~$1.80B)	Beat
Non-GAAP Gross Margin	Q3 FY2025	80.0% to 81.0%	80.9%	+0.9pts above midpoint	Beat
Non-GAAP Operating Margin	Q3 FY2025	32.5% to 33.5%	36.9%	+3.4pts above high end of guide	Beat

Changes to prior guidance

Metric	Period	Prior guide	New guide	Δ	Result
Revenue	FY2025	$6.675 billion to $6.825 billion	$6.720 billion to $6.780 billion	Midpoint: $6.75B→$6.75B (unchanged); range narrowed by $45M at low end and $45M at high end	Raised
Non-GAAP EPS	FY2025	$2.47 to $2.53	$2.66 to $2.70	Midpoint: $2.50→$2.68 (+$0.18 / +7.2%)	Raised
Billings	FY2025	$7.325 billion to $7.475 billion	$7.370 billion to $7.470 billion	Midpoint: $7.40B→$7.42B (+$0.02B / +0.3%); slightly tightened range	Raised
Service Revenue	FY2025	$4.550 billion to $4.650 billion	$4.575 billion to $4.595 billion	Midpoint: $4.60B→$4.585B (-$0.015B); range narrowed to $20M	Raised
Non-GAAP Gross Margin	FY2025	79.0% to 81.0%	80.25% to 80.75%	Midpoint: 80.0%→80.5% (+0.5pts); range significantly narrowed	Raised

Segment performance

Q3 FY2025

Segment	Q3 FY2025	YoY
Product	$0.559B	+18.0%
Service	$1.166B	+12.7%

Platform metrics

Q3 FY2025

Segment	Q3 FY2025
Billings	$1.81 billion
Billings Growth (YoY)	14%
FortiSASE Billings Growth (YoY)	>100%

Profitability

Q3 FY2025

Segment	Q3 FY2025
Non-GAAP Operating Margin	36.9%
Non-GAAP Gross Margin	80.9%

Management tone

Narrative arc: Services-led / waiting for product → Product inflecting / refresh cycle 40-50% through → Product accelerating + SASE #1 ambition + AI-driven SecOps as fastest pillar.

SASE was upgraded from growth pillar to explicit #1 market leader ambition. One quarter ago Ken framed SASE firewall as displacing both legacy NGFW and pure-play SASE — a competitive positioning argument. This quarter the framing escalated to "we are confident in our ability to become the number one SaaS market leader in the next few years." That is a categorically different claim than "we are gaining share." It commits management to a measurable outcome on a defined timeline and shifts SASE from being part of the platform story to being the headline of it. With FortiSASE billings >100% and 15% large-enterprise penetration (+55% YoY), the math is starting to support the ambition, but the rhetorical commitment is now public.

AI-driven SecOps was elevated from a future opportunity to the fastest-growing pillar with disclosed metrics. Q2's call had AI as a thematic tailwind; this quarter Ken disclosed AI-driven SecOps billings grew 33% and the company launched a "secure AI data center solution specifically designed for AI workload." This is the first quarter Fortinet has reported AI as an active discrete revenue driver with a number attached. The pivot from narrative to disclosed KPI typically precedes management pushing a segment toward standalone reporting — worth watching whether SecOps gets its own line in FY2026 disclosures.

Operating margin guidance philosophy looks unchanged despite the 340bps beat. The new Q4 operating margin guide of 34.5–35.5% is meaningfully below the 36.9% Q3 print. Management is not pulling forward the margin story into the guide even after a substantial beat — either because Q3 contained non-recurring opex underspend, or because they are continuing to sandbag. The Q4 EPS midpoint of $0.74 equals Q3 actual EPS despite revenue growing $130M sequentially — implicit margin compression. Watch whether Q4 prints another 36%+.

Services trough remains undeclared. Citi's Bulani gave management a direct opportunity to anchor 13% as the floor for service revenue growth. Ken and Christiane declined, citing the 29-month attach lag and pointing to H2 2026 for improvement. The decision not to commit to a trough — when committing would have been the easy answer — is the most candid moment of the print. Services deceleration continues.

Product-revenue growth was reframed as structural, not cyclical. Pressed by Goldman's Gabriella Borges on whether product growth has idiosyncratic refresh-cycle drivers, Ken anchored the 10–15% "normal case" rate to "next 5–10 years historically and going forward" rather than calling it a 2026 number. That is the inverse of the Q2 framing, which leaned on the 2026 refresh cohort. The implicit argument: product growth is now driven by use-case expansion (SecOps, OT, AI), not the upgrade calendar.

Recurring themes management leaned on this quarter:

AI-driven security operations accelerationOperational technology and critical infrastructure expansionSingle FortiOS platform as consolidation driverLarge enterprise deal expansion and SASE adoptionASIC-based performance advantage for AI data centersPath to #1 SASE market leader position

Risks management surfaced:

Forward-looking statements subject to risks and uncertainties2026 end of support cohort impact (noted as not significant in Q3)Continued infrastructure investment requirementsCompetitive vendor displacement risk (mitigated by execution)

Q&A highlights

Tal Liani · Bank of America

Product revenues grew 18%, materially above street expectations of 12%. What are the drivers and what is the impact of refresh product/end of service?

Growth driven by strong demand in SASE, SecureOps, and OT (growing 30%). End of service is not a material growth driver; management compared it to buying a new car based on features, not waiting for old car to die. Product revenue guidance is 10-15% long-term growth based on new functions, better hardware, new ASIC next year, and new markets. Service revenue expected to improve in second half of 2026 due to product revenue acceleration.

Product revenue grew 18% YoYSASE, SecureOps, and OT grew 30%10-15% long-term product revenue growth expectedService revenue improvement expected H2 2026

Fatima Bulani · Citibank

Services revenue has decelerated for nine consecutive quarters with 13% growth. Is this the trough or near trough? What is the trajectory for next 12 months?

Services growth expected to improve in second half of 2026 as negative billings growth from last year flows through the system (29-month attach period). Some customers buying product ahead of service deployment. Management confident in services recovery but did not explicitly confirm 13% as trough.

Services revenue decelerated 9 consecutive quarters13% services growth in current quarter29-month average service term creates revenue lagServices improvement expected H2 2026

Shawleel · TD Cohen

Can you unpack the eight-figure SD-WAN/SASE transaction with a police force? How much is SD-WAN versus SASE?

Eight-figure deal is primarily product and services billings related to sovereign SASE (software-delivered, not cloud-delivered). Customer building their own SASE solution to meet local data governance requirements. More SD-WAN and SD-Branch than cloud SASE. Fortinet's advantage is offering both cloud-delivered and on-premise SASE options, plus integrated solution in single appliance versus competitors' multi-box approach.

Eight-figure deal for sovereign SASE solutionCustomer-hosted SASE solution (not cloud-delivered)Meets local data governance requirementsSingle appliance solution versus competitor multi-box approach

Brian Essex · JP Morgan

What is the SASE penetration rate into your SD-WAN and Firewall install base? What would accelerate leading with SASE instead of relying on upgrades?

Currently 15% of enterprise customers have SASE within two years of purchase. Much of SASE business goes through service providers and channel partners (difficult to track). Also seeing new SASE adoption from non-existing customers and replacement of other SASE vendors due to complexity and cost. Believes service providers will eventually adopt SASE, similar to historical carrier adoption patterns.

15% of enterprise customers adopting SASE within 2 years40 SASE appliance grew 100%Historical carrier/service provider adoption of 30%+ at IPOSASE easier to deploy and adopt than competitors' solutions

Gabriella Borges · Goldman Sachs

How do you think about product revenue growth trajectory into next year? Are there idiosyncratic drivers tied to COVID cycle or pipeline dynamics?

Confident about continued product growth next year driven by: upgrade and refresh activity, additional use cases (SecOps, OT), new customers. Multiple drivers including new FortiOS 8.0 (March), new ASIC with better performance at similar cost, continued OT security strength, and SaaS customer excitement. Normal case 10-15% product growth rate supported by 25 years of engineering and innovation capability.

FortiOS 8.0 launching early March at Accelerate conferenceNew ASIC launching next year (faster, more functions, similar cost)OT security growing, Westland report recognition as only leader10-15% product growth rate sustainable long-term

Answers to last quarter's watch list

Product revenue growth above 12% in Q3 — Resolved positively. Product revenue grew 18%, accelerating from Q2's 12.6%, well above the 12% threshold. Validates the refresh-cycle / use-case-expansion thesis decisively.

Resolved positively

Billings beat vs Q3 guide of $1.760–$1.840B with FY billings raised — Met but soft. Q3 billings of $1.81B came in slightly above the $1.80B midpoint, and FY billings was raised modestly ($20M at midpoint to $7.42B). Not the clean acceleration the watch item anticipated.

Continue monitoring

Unified SASE ARR sustaining 22%+ growth — Resolved negatively. Unified SASE ARR was $1.22B, +13% YoY — a clear deceleration from the 22%+ benchmark. Management cited CNAPP as a drag inside the bucket and pointed to positive sequential momentum, but the headline ARR growth rate stepped down materially even as FortiSASE billings grew >100%.

Resolved negatively

Operating margin durability at 33%+ — Resolved positively, emphatically. Q3 non-GAAP operating margin of 36.9% blew through the 33% bar and exceeded the guide high by 340bps. FY operating margin guide midpoint raised 200bps to 34.75% and EPS midpoint raised 7.2%.

Resolved positively

Large deal $1M+ dollar value growth repeating +51% — Mixed. $1M+ deal count grew +26% (vs +29% in Q2) and dollar value grew +30%+ (vs +51% in Q2). Still positive but a clear step-down from Q2's pace.

Continue monitoring

Service revenue growth converging upward toward billings — Resolved negatively. Service revenue grew 13%, decelerating from Q2's 14.1% and now nine consecutive quarters of deceleration. Management explicitly pushed the inflection to H2 2026.

Resolved negatively

What to watch into next quarter

Whether Q4 operating margin holds above 36% versus the guided 34.5–35.5%. Q3's 340bps beat against the guide is the single most important number in this print — if Q4 prints another 36%+ on the same conservative-guide pattern, the implied FY2026 EPS power is meaningfully higher than current guidance suggests. A regression to the guided 35% would suggest Q3 included non-recurring opex underspend.

Service revenue growth — does it stabilize at 12–13% or decelerate further into the low double digits. Management has now explicitly pushed the trough to H2 2026, meaning Q4 and Q1 2026 should print at or below 13%. A print below 12% would suggest the attach-rate damage from last year's billings weakness is worse than modeled.

AI-driven SecOps billings growth — does it sustain 30%+ and get a dollar disclosure. First quarter it was disclosed as a discrete pillar. If it stays the fastest-growing line and management starts disclosing ARR, this becomes the next FortiSASE-style narrative pillar.

$1M+ deal dollar value growth — does the deceleration from +51% to +30%+ continue. A third consecutive sequential step-down would suggest enterprise platform consolidation deal momentum is normalizing rather than compounding.

FY2026 initial guidance shape when issued next quarter. Specifically whether management anchors product revenue growth to the 10–15% "normal case" band or guides higher given the Q3 18% print, and whether the rule-of-45 framing gets upgraded given Q3's 36.9% operating margin.

Whether management quantifies SASE market share progress against the publicly stated "#1 in a few years" ambition. Having made the claim, the next step is providing measurable interim milestones (e.g., FortiSASE ARR, customer count, displacement wins) to support it.

Sources

Fortinet Q3 2025 press release / 8-K exhibit: https://www.sec.gov/Archives/edgar/data/1262039/000126203925000036/ftntq3-2025ex991.htm
Q3 2025 earnings call commentary attributed to Ken Xie (CEO) and Christiane (CFO).
Fortinet Q2 2025 prior brief (Tapebrief).

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