AI & Infrastructure CapexAI 与基础设施资本开支
Arista Networks, Inc.
ANET 6.5Price and target zones价格与目标区间
What the company does公司做什么
Arista makes the high-speed network switches that move data inside large data centres, especially the AI computing clusters where thousands of chips must exchange data fast. One software system runs across its whole switch line.Arista 制造在大型数据中心内部搬运数据的高速网络交换机，尤其是那些成千上万颗芯片必须快速交换数据的AI计算集群。它整条交换机产品线都跑同一套软件系统。
Earns from营收来源 switch sales, plus support contracts sold alongside them.交换机销售，外加随之一起卖出的支持服务合同。
Read the full description查看完整介绍
Arista Networks, Inc. engages in the development, marketing, and sale of data-driven, client to cloud networking solutions for AI, data center, campus, and routing environments in the Americas, Europe, the Middle East, Africa, and the Asia-Pacific. Its cloud networking solutions consist of Extensible Operating System (EOS), a publish-subscribe state-sharing networking operating system offered in combination with a set of network applications. The company offers data center, cloud and AI networking, cognitive adjacencies, and cognitive network software and services. It also provides post contract customer support services, such as technical support, hardware repair and replacement parts beyond standard warranty, bug fixes, patches, and upgrade services. The company serves a range of industries comprising internet companies, cloud service providers, financial services organizations, government agencies, media and entertainment, healthcare, oil and gas, education, manufacturing, industrial, and others. It markets and sells its products through distributors, system integrators, value-added resellers, and original equipment manufacturer partners, as well as through its direct sales force. Arista Networks, Inc. was formerly known as Arastra, Inc. and changed its name to Arista Networks, Inc. in October 2008. The company was incorporated in 2004 and is headquartered in Santa Clara, California.
Revenue breakdown营收构成 share of revenue营收占比
Arista's core business: high-speed switches and routers, run by its EOS software, that move data between servers inside data centres. These switches set the pace at which an AI computing cluster can train and run models, so hardware refresh cycles track the buildout of AI and cloud infrastructure.Arista 的核心业务：高速交换机和路由器，由其 EOS 软件驱动，用于在数据中心内的服务器之间传输数据。这些交换机决定了 AI 计算集群训练和运行模型的速度，因此硬件更新周期与 AI 和云基础设施的建设节奏同步。
- Data-centre and AI switches数据中心与 AI 交换机 — Move traffic between servers at very high speed, which sets the pace of an AI computing cluster.在服务器之间以极高速度传输流量，这决定了一个 AI 计算集群的运行速度。
- EOS softwareEOS 软件 — One software system that runs on every Arista switch, so a customer manages the whole fleet the same way.运行在每一台 Arista 交换机上的同一套软件系统，让客户用同样的方式管理整个交换机群。
Support and maintenance contracts sold alongside the switches, covering software updates, technical assistance, and hardware replacement. This revenue renews year after year once a customer's network is deployed, giving Arista a steadier income stream layered on top of hardware sales.随交换机一同销售的支持和维护合同，涵盖软件更新、技术协助和硬件更换。客户的网络部署完成后，这部分收入会逐年续约，为 Arista 在硬件销售之外提供更稳定的收入来源。
Company facts公司资料
- Founded成立时间
- 2004
- Headquarters总部
- Santa Clara, California
- Employees员工人数
- 5,115
- Industry行业
- Computer Hardware
- Country国家
- United States
Investment thesis投资逻辑 from the watchlist来自关注列表
📋 ANALYZED 8/27 — first file ever. HOLD, and the best business analysed today by a wide margin. Arista Networks — the high-performance ethernet switching the hyperscale datacenter runs on: EOS, one unmodified software image across campus, datacenter and routing, on Broadcom merchant silicon. 43.1% TTM operating margin ~30% ROIC (effectively unbounded ex-cash) 48.9% FCF margin capex 1.4% of sales $13.3B net cash, zero debt FCF conversion 121% of net income. 🔍 Not 38.0x — that is the FY2027 figure. The honest current-year multiple is 48.9x (Yahoo's epsCurrentYear $4.11 carries the right number; epsForward $5.16 is a year out) → [[pitfall-vendor-forward-eps-is-the-wrong-fiscal-year]]. Bottom-up from the company's own guide lands at $4.08-4.13, within 1%.
What's working
- FY2026 guide raised a THIRD time to ~$12.6B (+40%); operating-margin target raised to 48-49%; Q2 non-GAAP EPS $1.02 vs $0.88. 🔑 But the AI target was NOT raised while revenue was raised $1.1B — Ullal said the increment is "our core Arista product line… enterprise… and likewise with routing." Better for concentration, worse for the AI-pure-play multiple
Red flags
- The moat is already leaking into the P&L and the 10-Q says why: gross margin 65.2% → 62.9% YoY, "primarily driven by an increased proportion of our sales to large end customers who generally receive higher discounts." Operating margin still expanded (44.7% → 45.4%), so it has not reached operating income — that is the single number to track, and the de-rating trigger at ~49x.
- Top-two concentration 35% → 42% in one year, and the Titans bucket went 73% → 88% two names; the FY2025 10-K stopped naming Microsoft and Meta
- Meta runs FBOSS on Arista's own hardware, not EOS, and now ships Minipack3N — Nvidia Spectrum-4 silicon, Accton-built, on FBOSS.
- IDC 1Q26: Nvidia is #1 in datacenter ethernet (21.5% vs Arista 20.7%). Dell'Oro AI back-end: Celestica (an ODM) #1, Nvidia #2, Arista #3.
- Broadcom's Tomahawk 6 has been orderable in a Celestica box since April 2026; Arista's own TH6 platform reaches production in 2027.
- Cisco guides $7.5B FY2027 AI revenue — 2x Arista's entire $3.5B AI target — and began shipping SONiC on Nexus 9000
- $1.48B of insider selling in 12 months against ZERO open-market purchases; the "17% insider ownership" is 84.6% one founder's trust liquidating at ~$460M/yr; T. Rowe −20.8%, Capital Research −10.8%, FMR −9.5% into the run
Watch
- Zero holds and zero sells across 30 analysts.
- P/S 24.1x — above any quarter-end reading in ten years; own P/E band has re-rated every year, 29→39→52→57→63x
- The "+27.9% month" is measured off the 7/29 trough and is ~2/3 sector beta; the 52wk high $214.89 was an intraday spike — highest-ever close is $210.50. Reverse-DCF: 19.3%/yr FCF for a decade. FV $175-215 (central $195). Entry $160-180, strong buy <$150. Trim
45x fwd(basis: FY2027 non-GAAP $5.16 → renders ≈$232; multiple form is safe here — compounder, consistent offset year, no warrant overhang) - Same AI-capex bucket as AMD/AVGO/KLAC — ANET and AMD are one bet held twice, and ANET is the better half. Position is 1.5sh, ~$302 — a placeholder, not a position.
📋 8/27 已分析 —— 有史以来第一份文件。 持有（HOLD），而且是今天分析的两家公司里明显更好的生意。 ** Arista Networks —— 超大规模数据中心运行所依赖的高性能以太网交换设备：EOS，一套在园区、数据中心和路由产品线上完全相同、无需修改的软件镜像，跑在博通的商用芯片上。 TTM 营业利润率 43.1% ROIC 约 30%（扣除现金后实际上高到无法计算） 自由现金流利润率 48.9% 资本开支只占销售额的 1.4% 净现金 $13.3B，零负债 自由现金流是净利润的 121%。 ** 🔍 不是 38.0x —— 那是 FY2027 的数字。 诚实的当年估值倍数是 48.9x（雅虎的 epsCurrentYear $4.11 才是对的；epsForward $5.16 往后了一年）→ [[pitfall-vendor-forward-eps-is-the-wrong-fiscal-year]]。 用公司自己的指引自下而上倒推，得到 $4.08-4.13，误差在 1% 以内。 ✅ FY2026 指引年内第三次上调，到约 $12.6B（+40%）；营业利润率目标上调到 48-49%；第二季度非 GAAP 每股收益 $1.02，预期 $0.88。 🔑 但在收入指引上调 $1.1B 的同时，AI 目标并没有上调 —— Ullal 说增量来自「我们的核心 Arista 产品线……企业市场……以及路由业务」。 这对客户集中度是好事，对「纯 AI 概念」的估值倍数是坏事。 🚩 护城河已经开始在利润表上漏水，而且 10-Q 说明了原因： 毛利率同比 65.2% → 62.9%，「主要由于对通常享有更高折扣的大型终端客户的销售占比上升」。 营业利润率仍在扩张（44.7% → 45.4%），所以还没有传导到营业利润 —— 这就是唯一需要盯住的数字，也是 49x 估值下的重估触发点。 ** 🚩 前两大客户集中度一年内从 35% 升到 42%，而「云与 AI 巨头」这一桶里前两名的占比从 73% 升到 88%；FY2025 的 10-K 不再点名微软和 Meta。 🚩 Meta 在 Arista 自己的硬件上跑的是 FBOSS，不是 EOS，而且现在还推出了 Minipack3N —— 英伟达 Spectrum-4 芯片，由 Accton 代工，跑 FBOSS。 ** 🚩 IDC 2026 年第一季度：英伟达在数据中心以太网交换市场排名第一（21.5%，Arista 20.7%）。 Dell'Oro 的 AI 后端网络排名：Celestica（一家 ODM）第一，英伟达第二，Arista 第三。 ** 🚩 博通的 Tomahawk 6 从 2026 年 4 月起就能在 Celestica 的机箱里下单了；Arista 自己的 TH6 平台要到 2027 年才量产。 ** 🚩 思科指引 FY2027 AI 收入 $7.5B —— 是 Arista 整个 $3.5B AI 目标的两倍 —— 并且开始在 Nexus 9000 上提供 SONiC。 🚩 过去 12 个月内部人卖出 $1.48B，公开市场买入为零；所谓「17% 的内部人持股」其中 84.6% 是一位创始人的家族信托，正以每年约 $460M 的速度减持；在这一波上涨中 T. Rowe 减持 20.8%，Capital Research 减持 10.8%，FMR 减持 9.5%。 ⚠️ 30 位分析师中，没有一个中性评级，也没有一个卖出评级。 ** ⚠️ 市销率 24.1x —— 高于过去十年任何一个季度末的读数；自身市盈率区间逐年抬升：29→39→52→57→63x。 ⚠️ 所谓「一个月 +27.9%」是从 7/29 的低点起算的，其中约三分之二是板块贝塔；52 周高点 $214.89 只是盘中一根插针 —— 历史最高收盘价是 $210.50。 ** 反向现金流折现：自由现金流需要以 19.3% 的年复合增速持续十年。 ** 合理价值 $175-215（中值 $195）。 加仓区间 $160-180，强烈买入 <$150。 减仓 45x fwd（基准：FY2027 非 GAAP $5.16 → 渲染约 $232；这里用倍数形式是安全的 —— 属于复利型公司、财年偏移一致、且没有权证稀释问题）。 ⚠️ 和 AMD/AVGO/KLAC 属于同一个 AI 资本开支板块 —— ANET 和 AMD 是同一笔押注押了两次，而 ANET 是更好的那一半。 ** 当前持仓只有 1.5 股，约 $302 —— 是个占位符，不是仓位。 ** A2026-08-27**
Historical results历史业绩 past fiscal years — these values do not change过去财年——这些数值不会变动
Profit margins利润率 the share of revenue that stays as profit营收中留存为利润的比例
of every $1 of revenue每 $1 营收中的占比
- Return on equity净资产收益率
- 31%
- Revenue growth营收增长
- +38%
Competitors竞争对手
Why customers stay客户为什么留下
One software system across every switch, plus deep entrenchment with the largest cloud companies. The matching risk is concentration: Microsoft alone was 20% of revenue in FY2024, and Meta was more than 10% — a few customers drive much of the business.一套软件系统跑遍所有交换机，加上和最大的那几家云计算公司深度绑定。与之相对的风险是客户过于集中：光是 Microsoft 在2024财年就占了收入的20%，Meta 也超过10%——少数几个客户撑起了很大一部分业务。
Related companies相关公司 🔴 AI capex — SELLERS into the buildout
Datacenter buildout pace. SOX −28.6% (peak 6/22 → 7/29), $3.3T of sector cap gone in 5 weeks — every name fell regardless of its own results.
Size the bucket, not the name. (ORCL's own analysis says this.)