F5, Inc. (FFIV) | The Buildout — AI Infrastructure
The Verdict
F5 makes the application delivery and security layer that sits in front of critical enterprise applications and APIs. It supplies BIG-IP appliances, NGINX software, and Distributed Cloud Services that balance traffic and block attacks across on-premises, cloud, and edge environments. In the AI buildout, that position becomes a control point for moving training and inference data, protecting AI models and APIs from abuse, and load balancing traffic inside AI factories.
| Market Cap | — |
| Revenue (TTM) | $3.3B |
| Revenue Growth | +9.4% |
| EBITDA Margin (TTM) | 26.8% |
| Net Cash | $1.4B |
| Earnings Beats | 7 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Eight consecutive quarters of double-digit product growth; Q3 product revenue rose 19% y/y to $463 million.
- Q3 systems revenue rose 32% y/y to $240 million, and management changed the long-term hardware view from mid-single-digit decline to single-digit to mid-single-digit growth.
- Direct AI sales were about $50 million in the first half, up more than 200% y/y, approaching 100 customers; Q3 direct AI customer count grew 50% sequentially.
- AI-powered WAF reached 15% of Distributed Cloud WAF customers within roughly one quarter of launch, with 75% of adopters in blocking mode.
- Q3 non-GAAP gross margin was 84.2% and operating margin 35%; Q2 operating cash flow of $366 million and free cash flow of $348 million were records.
What We’re Watching
- Q3 software revenue grew 7% y/y after 17% in Q2; the promised FY27 return to solid double-digit software growth is not yet reported.
- FY27 non-GAAP gross margin was held at 80–82%, below FY26's raised 83.5–84%, on memory/SSD costs expected to stay elevated through the better part of FY27.
- APAC reported revenue fell 11% y/y in Q3; management attributes the swing to shipment timing rather than demand.
- Direct AI remains a low-single-digit share of revenue by arithmetic estimate, and the $50 million H1 figure is not updated quarterly.
The thesis is strengthening on disclosed demand: product growth is double-digit, systems is accelerating, guidance has been raised, and AI/security adoption is real and quantified. The open question is whether software and direct AI revenue become large enough in FY27 to offset the maturing systems refresh and hold margins through the memory cycle.
Earnings Beat
In Q3 FY2026, reported July 27, 2026, total revenue was $865 million, up 11% year over year. Product revenue grew 19% to $463 million, with systems up 32% to $240 million and software up 7% to $223 million. Non-GAAP gross margin came in at 84.2%, and non-GAAP EPS was $4.73, up 14% year over year.
| Metric | Q3 FY2026 | Q2 FY2026 | Q3 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $865M | $812M | $780M | +10.9% |
| Gross margin | 82.2% | 82.8% | 81.0% | +120bps |
| EBITDA | $213M | $203M | $219M | −2.5% |
| EPS | $3.61 | $2.58 | $3.25 | +11.2% |
| Systems revenue | $240M | $226M | n/a | +32% y/y |
| Deferred revenue | $2.19B | $2.12B | n/a | +12% y/y |
Q3 was another outstanding quarter with 19% product revenue growth driving 11% total revenue growth year over year.— François Locoh-Donou, CEO, July 27, 2026
Management tone: Management's tone became more confident and more quantified across Q2 and Q3, with the Q3 call framing the quarter as evidence that 'the market is moving toward F5.' Executives addressed AI quantification limits, the APAC decline, and memory-driven margin caution directly rather than dismissing them.
Management Guidance
For Q4 FY26, management guided revenue to $870–$890 million, non-GAAP gross margin to 83–84%, non-GAAP opex to $430–$442 million, and non-GAAP EPS to $4.14–$4.26. Full-year FY26 guidance was raised to approximately 9–10% revenue growth and non-GAAP EPS of $17.21–$17.33, with gross margin of 83.5–84%, operating margin of 34.5–35.5%, and a tax rate of 18–19%. FY27 gross margin was held at 80–82%, with management citing mixed memory signals as the reason not to update yet.
Trajectory
F5 entered an accelerating revenue phase: Q3 FY26 revenue of $865 million rose 11% year over year and 6.6% sequentially, with product revenue up 19%. Systems revenue accelerated to 32% growth, while software revenue decelerated to 7% from 17% in Q2 on the weak FY23 renewal cohort. Non-GAAP gross margin expanded to 84.2%, but FY27 gross margin guidance was held at 80–82% on memory uncertainty.
The Model
The model projects FY+1 revenue of $3,350 million and EBITDA of $941 million, a 28.1% margin, rising in FY+2 to $3,625 million of revenue and $1,058 million of EBITDA, a 29.2% margin. The FY+1 view rests on continued product-led growth; FY+2 adds the expected FY27 software reacceleration and ongoing security/AI adoption.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $3.1B | $3.4B | $3.6B |
| YoY Growth | — | +8.5% | +8.2% |
| EBITDA | $858M | $941M | $1.1B |
| EBITDA Margin | 27.8% | 28.1% | 29.2% |
Projections are the median of 5 independent model runs. The model’s revenue sits 2.6% above analyst consensus.
For Q4 FY26, management guided revenue to $870–$890 million, non-GAAP gross margin to 83–84%, non-GAAP opex to $430–$442 million, and non-GAAP EPS to $4.14–$4.26. Full-year FY26 guidance was raised to approximately 9–10% revenue growth and non-GAAP EPS of $17.21–$17.33, with gross margin of 83.5–84%, operating margin of 34.5–35.5%, and a tax rate of 18–19%. FY27 gross margin was held at 80–82%, with management citing mixed memory signals as the reason not to update yet.
What Could Go Right — and Wrong
- FY27 software growth returns to solid double digits on the stronger renewal base and completed legacy SaaS transition.
- Direct AI sales and expanding customer counts convert into recognized revenue above the current low-single-digit share.
- Neoscalers begin buying on tokens-per-GPU economics, pulling NVIDIA BlueField proofs of concept into production AI factory deployments.
- Systems growth remains above the long-term single-digit to mid-single-digit guide for several more quarters on sovereignty and AI traffic.
- Memory and SSD costs stabilize or decline, clearing a path for FY27 gross margin above the held 80–82% guide.
- FY27 software reacceleration disappoints; Q3 software growth was only 7%, so the double-digit outlook remains unproven.
- Memory and SSD costs stay elevated through the better part of FY27, pressuring the 80–82% FY27 gross margin guide.
- The systems surge fades after the iSeries end-of-support catalyst, and hardware settles back to or below the long-term single-digit growth model.
- AI customer counts grow without converting into meaningful revenue, leaving direct AI near the low-single-digit share.
- Distributor concentration and shipment-timing swings — such as APAC's 11% Q3 decline — create revenue volatility.
Looking Ahead
The next twelve months hinge on the Q4 FY26 result against the $870–$890 million guide, followed by the October FY26 call where management will frame FY27 revenue growth. The fiscal Q2 2027 iSeries end-of-software-support date is expected to accelerate refresh activity, while year-end AI disclosure and NVIDIA BlueField trials provide early tests of the AI opportunity.
- Current quarterQ4 FY2026 results — Tests $870–$890M revenue guide, systems momentum, and APAC rebound.
- October FY26 callFY27 growth framework — Management will provide the FY27 revenue growth framework.
- Fiscal year-endDirect AI disclosure update — Possible updated AI sales or revenue figure for FY26.
- F5 fiscal Q2 2027iSeries end-of-support — Expected to accelerate hardware refresh activity into 2027.
- OngoingNVIDIA BlueField trial conversion — Proofs of concept moving to production AI factory deployments.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $2.8B | $3.1B | $3.3B | +9.7% |
| Gross Margin | 80.2% | 81.4% | 82.2% | +120bps |
| EBITDA | $766M | $858M | $6.4B | +12.1% |
| EBITDA Margin | 27.2% | 27.8% | 26.8% | +60bps |
| Net Income | $567M | $692M | $727M | +22.1% |
| Free Cash Flow | $762M | $906M | $6.9B | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)82.2%
- EBITDA Margin (TTM)26.8%
- Net Margin (TTM)22.0%
- ROIC26.0%
- FCF Conversion109.5%
- SBC / Revenue5.6%
The Company
F5 provides multicloud application delivery and security. Its BIG-IP systems, NGINX software, and Distributed Cloud Services sit in front of applications and APIs, balancing traffic and blocking threats across on-premises data centers, public clouds, and the edge. Management describes this as the front door of the world's most critical applications; AI adds three direct use cases — AI data delivery, AI runtime security, and AI factory load balancing — plus indirect traffic growth on ADC systems.
F5 reports as one segment across Americas, EMEA, and APAC. It is fabless for hardware: Flex Ltd. is the primary third-party manufacturer, with named assembly and fulfillment sites in Guadalajara, Zhuhai, and Memphis. Revenue splits between product — systems and software — and services, with roughly 6,600 employees at Q3 FY2026 and $1.63 billion of cash and investments on the balance sheet.
Business Segments
Competitive Landscape
F5's competitive set spans application delivery and security. Management says the competitive takeout rate has risen materially, with multiple displacement wins described on earnings calls.
Supply Chain
F5 is a fabless system and software maker: it outsources hardware assembly to Flex and pairs that hardware with BIG-IP, NGINX, and Distributed Cloud Services. NVIDIA appears as an ecosystem partner, while memory/SSD supply is being diversified across multiple vendors.
More on FFIV: Earnings recap