Earnings Call Highlights: Arista Networks (ANET) | FY26 Q1

2 days ago

4 min read

Arista delivered the strongest quarterly cash flow in its history, yet Jayshree Ullal said something rare: "supply is the opposite tale." Demand has never been the problem; the problem is that chips are so scarce that even 52-week lead times are barely holding. This isn't a ceiling on growth — it's what growth looks like when it's being held down to the floor.

Executive Takeaway

Three core signals you need to know:

1. The $11.5B full-year target is limited by supply, not demand. Management raised full-year guidance for the third time (from $10.5B to $11.5B), while stating explicitly that demand far exceeds what it can deliver. Supply chain problems have spread from memory to fabs, silicon, CPUs and optical modules, and are expected to last one to two years. This is a growth story of "can't ship fast enough," not weak demand.

2. Scale-Across is becoming the most underrated battleground in AI networking. One-third of Arista's AI revenue comes from Scale-Across (data center interconnect), which management called "the most significant and most differentiated opportunity right now." And this battleground is exactly home turf for Arista's 7800 routing platform.

3. XPO is the next OSFP, and the 10-year race is just beginning. Extended Pluggable Optics (XPO), unveiled at OFC 2026, has already been endorsed by more than 100 vendors. With 12.8Tb throughput per module, 204.8Tb per OCP rack unit and a liquid-cooled design, it is the only viable volume-production path for rates of 1.6T and above.

Revenue and Financials

Total revenue: $2.71B, up 35.1% YoY, above the top of guidance ($2.6B)
Non-GAAP gross margin: 62.4%, in line with guidance, down 1pp from Q4
Non-GAAP operating margin: 47.8%
Diluted EPS: $0.87, up 31.8% YoY
Quarterly operating cash flow: $1.69B, the highest in Arista's history
Deferred revenue: $6.2B, up $830M in the quarter, a record high

The most notable thing this quarter isn't revenue but the surge in deferred revenue. The $6.2B deferred balance represents orders booked but not yet recognized, driven by customer acceptance cycles stretching from 2–4 quarters in the past to 6–8 quarters now. The reason is simple: AI networking is a brand-new product and a brand-new architecture, and manual cabling alone takes months and thousands of people. Deferral isn't a risk — it's fuel stacked in the pipeline waiting to be released.

The slight dip in gross margin was mainly due to customer mix — a higher share of large cloud AI customers. Management said it won't raise prices twice like its competitors, choosing instead to absorb some costs to preserve customer relationships, and will reflect pricing only after the backlog is worked down.

Technology and Business Highlights

Three Forms of AI Networking: Scale-Up, Scale-Out, Scale-Across

Scale-Up: interconnect within a single node or rack, currently dominated by NVLink and PCIe. Arista won't formally participate in Ethernet scale-up until 2027; for now, 5–7 rack design opportunities are in active engineering collaboration.
Scale-Out: the leaf-spine architecture across multiple nodes and servers, Arista's traditional strength. More than 100 cumulative customers have now completed 800G Ethernet deployments.
Scale-Across: wide-area traffic engineering across data centers and AI clusters — the biggest surprise of the quarter. Jayshree Ullal said outright that it already accounts for at least one-third of AI revenue, calling it "the most significant and most differentiated opportunity right now." The core platform is Arista's 7800R3/R4 routers, which require deep routing, encryption and multi-tenancy capabilities — exactly what white-box ODMs struggle to replicate.

XPO: The Next Interface Standard to Reshape the Industry for a Decade

At OFC 2026, Arista formally unveiled XPO, led by chief architect Andy Bechtolsheim. Key specs: 12.8Tb throughput per module, 204.8Tb per OCP rack unit, 400W liquid-cooling capacity per module, and support for pluggable optics, copper, and linear, half-retimed and retimed interfaces. Jayshree Ullal's positioning: 400G and 800G stay on OSFP, while rates of 1.6T and above migrate to XPO. Scale-Out and Scale-Across are XPO's home turf, and more than 100 vendors have already endorsed it.

NeoCloud and New Customer Clues

NeoCloud and sovereign cloud customers performed strongly this quarter, singled out by Jayshree Ullal as "an underrated segment." A typical case is a NeoCloud that switched from a white-box architecture to Arista blue-box, deploying 800G EtherLink to connect AMD MI-series GPUs. Microsoft and Meta remain 10%+ customers, and management expects to add one or two more 10%+ customers this year.

Management Outlook

Q2 guidance: revenue ~$2.8B (+3.3% QoQ), non-GAAP gross margin 62%–63%, non-GAAP operating margin 46%–47%, diluted EPS ~$0.88.
Full-year 2026 guidance (raised for the third time): revenue ~$11.5B, up 27.7% YoY. AI target of $3.5B, more than double 2025. Campus networking target held at $1.25B. Full-year gross margin of 62%–64%.
Reading management's wording: "demand is the best I have ever seen in my Arista tenure" is the strongest thing Jayshree Ullal has ever said, but she immediately followed with "supply is a slightly different and opposite tale" — the best summary of a supply-constrained story. The full-year target is capped by supply capacity, not by a demand ceiling.

Supply Chain and Customer Clues

Supply chain problems have spread from memory to fabs, silicon, CPUs and optical modules — shortages almost across the board. 52-week lead times are now the norm. Purchase commitments jumped from $6.8B in Q4 to $8.9B this quarter, reflecting multi-year supply lock-ins. Management chose to absorb costs rather than follow price increases, trading gross margin for customer stickiness, and expects supply chain tightness to last into 2027.

What to Watch Next Quarter

1. The pace of deferred revenue recognition. The $6.2B deferred balance is committed revenue; the key is how fast it converts into reported revenue. With AI customer acceptance cycles stretched to 6–8 quarters, track the quarterly direction of Product Deferred Revenue.

2. Whether Scale-Across keeps growing as a share of revenue. Management currently says "at least one-third," and 7800-series shipments are the most direct proxy.

3. Whether new 10%+ customers emerge in Q2. Management says it "sees one or two on the demand side"; whether they are ultimately confirmed depends on shipping capacity, making this the best window into whether the supply chain bottleneck is easing.

This article is for technology and industry trend analysis only and does not constitute investment advice.