Cisco Systems, Inc. (CSCO) | The Buildout — AI Infrastructure
The Verdict
Cisco sells the networking equipment that moves data inside and between data centers: switching, routing, wireless, servers, security software and services. In the AI buildout it plays two roles. It is a supplier of AI data center gear — Silicon One routing silicon, Acacia coherent optical components, optical line systems and Nexus switches — to hyperscale cloud operators that need to connect GPU clusters across buildings and sites. And it sells the campus and enterprise network refresh that AI-adjacent spending is pulling forward. Cisco designs the silicon and the optics but contracts out the bulk of its manufacturing.
| Market Cap | — |
| Revenue (TTM) | $63.3B |
| Revenue Growth | +11.8% |
| EBITDA Margin (TTM) | 28.3% |
| Net Debt | $13.6B |
| Earnings Beats | 7 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Hyperscaler AI infrastructure orders reached approximately 4.5x the FY25 total in FY26, split roughly 60% Silicon One-based systems and 40% optics.
- FY27 guidance implies about 15% revenue growth at the midpoint, against a previously carried 4%–6% long-term model.
- The core business excluding hyperscale AI is guided to about 10% growth in FY27, which management describes as significantly faster than that 4%–6% framework.
- Management raised its FY27 AI infrastructure revenue target from 'at least $6B' one quarter earlier, and the CFO called the FY27 operating-margin guide of about 35% a high watermark for the company.
- The recurring base is still growing: RPO $46.7B, up 7%; ARR $32.1B, up 3%; software revenue $6.2B, up 11%; subscription at 48% of total revenue.
What We’re Watching
- AI order conversion: FY26 AI orders of $9.3B against about $4B of recognized AI revenue, and Cisco does not disclose backlog or the shipping window. The next checkpoint is the Q1 FY27 call.
- Gross margin: Q4 non-GAAP gross margin was 66.3%, down 210 basis points y/y, and management guides 'a slight gross margin headwind as we move through FY 2027' on higher hardware mix.
- Price increases: about 5 points of Q4 revenue growth came from price, with 4–5 points planned for FY27 and weighted to the first half, so the contribution laps in the second half.
- Working capital: inventory rose 49% to $4.7B and inventory purchase commitments reached $16.0B, of which $14.1B falls within a year; the 10-Q warns binding commitments may require buying components above market.
On the record supplied, the growth thesis is strengthening rather than simply holding: guidance was raised at every level addressed across the two most recent calls, and FY26 revenue, non-GAAP EPS and AI orders all landed above their raised guidance. It is not unqualified. The fastest-growing part of the business runs through a small set of hyperscaler buyers whose orders management calls nonlinear, product gross margin is falling as hardware mix rises, and price rather than unit demand supplied part of the fourth quarter's growth. The open question is whether the FY26 order rate is a new baseline or a cycle peak — and FY27 order intake is the only place that gets answered.
Earnings Beat
Cisco's fiscal fourth quarter, reported 2026-08-12, delivered revenue of $17.3B, up 18% y/y and a record quarter, with product revenue of $13.5B, up 24%. Non-GAAP operating margin was 35.9% and non-GAAP EPS was $1.22, up 23%. Non-GAAP gross margin was 66.3%, down 210 basis points y/y, as higher hardware mix and memory costs offset productivity improvements and price. The standout was order intake: total product orders grew 35% y/y, including hyperscaler AI infrastructure orders.
| Metric | Q4 FY2026 | Q3 FY2026 | Q4 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $17.3B | $15.8B | $14.7B | +17.6% |
| Gross margin | 64.1% | 63.6% | 63.2% | +90bps |
| EBITDA | $4.9B | $4.6B | $3.7B | +31.9% |
| EPS | $0.97 | $0.85 | $0.64 | +51.5% |
| AI infrastructure orders (hyperscaler) | $4.0B | $1.9B | n/a | — |
| Remaining performance obligations | $46.7B | $43.5B | n/a | +7% y/y |
We took $4 billion in orders in Q4, bringing the total for FY 26 to $9.3 billion, approximately 4.5x our fiscal year 25 total.— Chuck Robbins, Chair and CEO, 2026-08-12
Management tone: Between the two calls supplied, management moved from a confident-but-building tone on the Q3 call to a more explicitly promotional one on Q4: the FY27 AI revenue target was raised, the scorecard shifted from an annual AI order target to an annual AI revenue target, and the closing remarks pre-empted the idea that Cisco is an accidental beneficiary. The gross-margin language changed from 'stabilized' to a guided slight headwind, with the CFO pointing to operating margin as the profitability metric. Management stayed candid at the edges of the story — volunteering an on-premises Splunk anomaly inside the 14% security growth, calling price increases 'a last resort,' and saying Mythos has not yet appeared in the numbers.
Management Guidance
Management guided FY27 revenue to $72.2B–$73.4B and non-GAAP EPS to $5.05–$5.11, with non-GAAP operating margin of about 35% — the CFO's stated high watermark for the company. Within the year, hyperscaler AI infrastructure revenue is guided to $7.5B with 'gradual increases' from Q1 through Q4; the core business excluding hyperscale AI to about 10% growth; security and observability to high single digit; and services to turn positive at low single digit. Price increases are planned to add 4–5 points of revenue, weighted to the first half, and gross margin carries a slight headwind through the year on higher hardware mix. For Q1 FY27: revenue $18.0B–$18.2B, non-GAAP gross margin 65%–66%, non-GAAP operating margin 35.5%–36.5%, non-GAAP EPS $1.32–$1.34 and an assumed tax rate of about 18.5%.
Trajectory
On the audited quarterly spine, revenue climbed from $14.9B in Q1 FY26 to $17.3B in Q4 FY26, with the year-over-year rate reaching about 18% in the July quarter — the computed signal is revenue accelerating. Product revenue led that, with Q4 product revenue up 24% y/y and networking up 28% y/y, the eighth consecutive quarter of double-digit networking portfolio growth. Margin direction depends on the basis. The computed signals show gross margin roughly stable across the trailing year, operating margin expanding by about 400 basis points and EBITDA margin by about 360 basis points, with EBITDA dollars rising from $3.97B in Q1 FY26 to $4.91B in Q4. But the growth is coming from lower-gross-margin hardware, and on Cisco's own non-GAAP basis product gross margin fell 270 basis points y/y in Q4. Cash conversion is healthy — trailing-twelve-month free cash flow was 106% of net income.
The Model
The model projects FY+1 revenue of $74.0B with EBITDA of $22,496M, a 30.4% margin, and FY+2 revenue of $83.5B with EBITDA of $26,136M, a 31.3% margin. The FY+1 revenue figure sits just above the top of management's guided FY27 range, and it is anchored by the AI order book already taken plus the core business management guides to about 10% growth. The FY+2 step-up assumes those design wins and orders convert into revenue at scale and that the EBITDA margin holds above the 28.3% trailing-twelve-month level even as the mix shifts toward hardware.
| Metric | FY2026 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $63.3B | $74.0B | $83.5B |
| YoY Growth | — | +16.9% | +12.8% |
| EBITDA | $17.9B | $22.5B | $26.1B |
| EBITDA Margin | 28.3% | 30.4% | 31.3% |
Projections are the median of 5 independent model runs. The model’s revenue sits 13.7% above analyst consensus.
Management guided FY27 revenue to $72.2B–$73.4B and non-GAAP EPS to $5.05–$5.11, with non-GAAP operating margin of about 35% — the CFO's stated high watermark for the company. Within the year, hyperscaler AI infrastructure revenue is guided to $7.5B with 'gradual increases' from Q1 through Q4; the core business excluding hyperscale AI to about 10% growth; security and observability to high single digit; and services to turn positive at low single digit. Price increases are planned to add 4–5 points of revenue, weighted to the first half, and gross margin carries a slight headwind through the year on higher hardware mix. For Q1 FY27: revenue $18.0B–$18.2B, non-GAAP gross margin 65%–66%, non-GAAP operating margin 35.5%–36.5%, non-GAAP EPS $1.32–$1.34 and an assumed tax rate of about 18.5%.
What Could Go Right — and Wrong
- FY27 order intake comes in meaningfully above the FY26 total, indicating the AI order rate is a new baseline rather than a cycle peak.
- The design-win pipeline management says it has line of sight to over the next six months — across G300, G200 and P200 Silicon One chip designs and optics — converts into named wins and then revenue.
- Gross margin holds at or above the 65%–66% Q1 FY27 guide through the year despite the rising hardware mix.
- Security and observability deliver more than the guided high-single-digit growth, showing the Q4 security print was more than the disclosed on-premises Splunk anomaly.
- Neocloud, sovereign and enterprise AI orders scale beyond the $1B booked in FY26, diluting the hyperscaler concentration.
- A hyperscaler order pause: management describes AI orders as nonlinear and placed well ahead of time, and the 10-Q warns customers have placed the same or a similar order multiple times and cancelled duplicates during lead-time stress.
- The price-increase contribution — about 5 points of Q4 revenue growth and 4–5 points planned for FY27 — laps in the second half without underlying unit growth replacing it.
- Gross margin undershoots the 65%–66% Q1 guide on memory cost or hardware mix, compressing the operating margin management calls a high watermark.
- The inventory and purchase-commitment build turns into write-downs: inventory rose 49% to $4.7B and purchase commitments reached $16.0B, of which $14.1B falls within a year.
- Competitive share loss in overlapping segments, where the supply-chain read-through shows peers including Arista and Fortinet reporting faster growth than Cisco's overlapping lines.
Looking Ahead
The next 12 months are set by management's own calendar. Q1 FY27 results are the first checkpoint, followed by the AI design-win pipeline management says it has line of sight to over the next six months across G300, G200, P200 and optics. Cisco Cloud Control goes generally available in the US in the month or so following the August call, multi-rail optical systems move from 'coming soon' into deployment, and Silicon One's comprehensive rollout across high-performance networking systems is dated to FY29. Further out, the AMD and HUMAIN joint venture to deliver up to 1 GW of AI infrastructure by 2030 remains on the record with no mention in the two most recent calls.
- September 2026Investor conferences — ECOC session with Acacia covers the optical and scale-across ramp.
- Q1 FY27Q1 FY27 earnings — Tests FY27 AI revenue ramp and the 65%–66% gross margin guide.
- Next 6 monthsAI design wins — Wins expected across G300, G200, P200 silicon and optics.
- FY27AI revenue ramp — Management guides gradual increases from Q1 through Q4.
- FY27Security growth inflection — Guided to high single digit from low single digit in FY26.
- By FY29Silicon One rollout — Comprehensive rollout across high-performance networking systems.
Financials
Annual Summary
| Metric | FY2025 | FY2026 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $56.7B | $63.3B | $63.3B | +11.8% |
| Gross Margin | 65.0% | 64.5% | 64.5% | 40bps |
| EBITDA | $14.6B | $17.9B | $17.9B | +22.9% |
| EBITDA Margin | 25.7% | 28.3% | 28.3% | +256bps |
| Net Income | $10.2B | $13.3B | $13.3B | +30.3% |
| Free Cash Flow | $13.3B | $13.6B | $13.6B | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)64.5%
- EBITDA Margin (TTM)28.3%
- Net Margin (TTM)21.0%
- ROIC19.0%
- FCF Conversion75.9%
- SBC / Revenue6.3%
The Company
Cisco Systems sells networking, security, collaboration, observability and services. Its 10-K describes the portfolio as technologies that 'help to power, secure, and draw insights from the Internet,' with networking built on switching, routing, wireless and servers. For the AI buildout the relevant pieces are the AI data center products — Silicon One routing silicon (P200 scale-across, G200 and G100 scale-out, with G300 coming), Acacia coherent pluggable optics at 400G and 800G, optical line systems, and Nexus data center switches — alongside the campus switching, Wi-Fi 7 and post-quantum-compliant gear that enterprise refresh cycles are pulling forward.
Cisco does not own or operate the bulk of its manufacturing, a risk its own 10-Q states plainly. It designs the silicon and the optics and contracts the build out, dealing directly with TSMC on Silicon One wafers. It reports in three geographic segments — Americas, EMEA and APJC — rather than by product, and the segment note says the chief operating decision maker measures segments on revenue and gross margin only, with research and development, sales and marketing and general and administrative costs unallocated. Headquarters is an owned site in San Jose, California, with regional headquarters in Amsterdam and Singapore. FY26 revenue was $63.3B.
Business Segments
Competitive Landscape
Cisco's 10-K lists competitors only 'relative to only some of our products or services,' naming Amazon Web Services, Arista Networks, Broadcom, Ciena, CrowdStrike, Datadog, Dell, Dynatrace, Fortinet, Hewlett Packard Enterprise, Huawei, Microsoft, New Relic, Nokia, Nvidia, Palo Alto Networks, RingCentral, Zoom and Zscaler, 'among others.' Cisco's own differentiation argument is the pairing of its own routing silicon with its own optics, framed by the CEO as: 'if you don't have silicon, you're going to struggle to be relevant to the hyperscalers.' The supply-chain read-through shows faster growth in the overlapping segments — Arista at roughly 40% growth with 49.9% operating margins, Ciena saying it cannot satisfy all 2027 demand, and Fortinet product revenue up 52% — against Cisco's filed Q3, where Security was flat and Observability grew 3%.
- Arista NetworksNamed in Cisco's 10-K competitor list. The supply-chain read-through shows a first $3B quarter, FY26 guided to about $12.6B and 40% growth, a 49.9% operating margin, and an AI fabrics goal of at least $3.5B; its CEO says the industry faces a two-year problem through 2028.
- CienaNamed in Cisco's 10-K competitor list. The read-through shows a record quarter with backlog of $8.5B, expected above $10B exiting FY26, and a statement that it cannot satisfy all 2027 requirements; it holds roughly 70% of the RLS market.
- Hewlett Packard EnterpriseNamed in Cisco's 10-K competitor list. The read-through shows FY27 revenue growth guided to 13%–17% with networking at +14%–17%, networking orders +36% attributed to supply constraints rather than demand, and an expanded Oracle AI cloud win.
- FortinetNamed in Cisco's 10-K competitor list. The read-through shows billings +33%, product revenue +52%, a 38% operating margin, and FY26 billings guided to +25%.
- BroadcomNamed in Cisco's 10-K competitor list for switching ASICs, and also a named supplier of switching ASICs — a dual role.
Supply Chain
Cisco sits mid-stream in the chain. It designs its own networking silicon and coherent optics but does not own or operate the bulk of its manufacturing; Fabrinet, its optical contract manufacturer, disclosed Cisco at 18.2% of its fiscal 2025 revenue.
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