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Up to three covered companies, band by band. Every call is a curated editorial judgment, never a disclosed figure — and every band carries its cited basis.

comparing Dell Technologies×SK Hynix×Arista Networks× maximum of 3 — remove one to swap
Dell Technologies DELL ai moat: latest change 2026-03-16 SK Hynix SKHY ai moat: latest change 2026-01-28 Arista Networks ANET ai moat: latest change 2026-02-17
Moat rating narrow

The FY2026 10-K describes advantages that are real but shallow, and a revenue mix that is diluting them. It names them as 'our end-to-end solutions portfolio, go-to-market capabilities, supply chain, and global services' and calls the direct sales channel 'a significant competitive advantage', while conceding it faces 'ongoing product and price competition in all areas of our business from both branded and generic competitors' and, on components, that 'any disruption that may occur because of our dependence on single- or limited-source vendors would not disproportionately disadvantage us relative to our competitors' - i.e. no differentiated supply position. The filing's own margin table shows where the franchise actually earns: total gross margin fell from 23.8% of net revenue in Fiscal 2024 to 22.2% in Fiscal 2025 to 20.0% in Fiscal 2026, and inside that, product gross margin fell 17.5% to 15.8% to 13.7% while services gross margin rose 40.8% to 41.4% to 44.8%. Narrow rather than none, because the high-margin services and storage core is intact and its margin rate improved; narrow rather than wide, because the line that is growing carries a 13.7% product gross margin and the filing attributes the whole decline to it.

source: sec.gov

narrow

SK hynix held ~62% of the AI-critical HBM market in Q2 2025 (Counterpoint, via TweakTown) and was first to mass-produce HBM4, but memory remains a cyclical three-player business where Samsung and Micron are closing the HBM gap — a real but contestable edge.

source: news.skhynix.com

narrow

The FY2025 10-K claims 'Market research confirms that we continue to be a leader in high-speed Ethernet switching', but grounds its differentiation in 'open and standards-based technology that avoids what is often expensive vendor lock-in' and warns that white-box entrants and alternative technologies 'may create downward pricing pressure'.

source: sec.gov

Moat type cost scale

The filing locates the advantage in scale of distribution and supply, not in proprietary rights. It states 'Our world-class supply chain operates at significant scale', describes a direct sales force plus a partner network that produced 'approximately 40% of our net revenue' in Fiscal 2026, and lists supply chain and global services among its competitive advantages. The IP alternative is ruled out in the same document: with 25,859 granted patents held at January 30, 2026, Dell still says 'we are not substantially dependent on any single patent or group of related patents.'

source: sec.gov

intangibles ip

The advantage is process-and-packaging technology leadership: SK hynix achieved industry-first HBM4 mass production in September 2025 and has positioned itself as NVIDIA's key HBM partner, per its record FY2025 results.

source: news.skhynix.com

intangibles ip

The durable asset the 10-K names is software, not hardware: a single state-oriented operating system (EOS) with a centralised system database, one data lake (NetDL) and one management plane (CloudVision) across the whole portfolio, with Arista, EOS and CloudVision listed as core trademarks — while the switching silicon comes from Broadcom, its 'predominant merchant silicon vendor'.

source: sec.gov

Leadership co leader

The 10-K's only positioning claim is the unquantified 'Dell Technologies is a leader in the global technology industry'; it names no competitor and gives no share anywhere. The band therefore rests on disclosed absolute scale - ISG net revenue of 60,826m and CSG net revenue of 50,984m in Fiscal 2026, operations in over 170 countries - set against the filing's own admission that hyperscale Infrastructure-as-a-Service buyers 'often buy their infrastructure directly from original design manufacturers', which caps how much of the market Dell can lead at all.

source: sec.gov

clear leader

Clear leader in HBM (#1 at ~62% share, Q2 2025) and became the world's top overall memory supplier in Q2 2025; caveat: it sits #2 to Samsung in commodity DRAM by volume and Micron/Samsung are narrowing the HBM gap heading into HBM4.

source: news.skhynix.com

co leader

The 10-K states Arista is a leader in high-speed Ethernet switching while also stating that 'The data center and campus networking markets have historically been dominated by Cisco', with Dell/EMC, Extreme Networks, HPE, Huawei, Juniper and Nvidia also competing.

source: sec.gov

Pricing power weak

The filing describes price-taking and its own tables confirm it. It reports 'ongoing product and price competition in all areas of our business from both branded and generic competitors' and says 'We closely monitor market pricing, including the effect of foreign exchange rate movements, in an effort to provide the best value for our customers.' Total gross margin fell from 23.8% of net revenue in Fiscal 2024 to 22.2% in Fiscal 2025 to 20.0% in Fiscal 2026, with product gross margin down to 13.7%; CSG operating margin fell three straight years (7.6%, 6.1%, 5.6% of segment revenue); and non-GAAP operating income as a percentage of net revenue 'decreased 10 basis points to 8.8%' even as revenue grew 19%. Consolidated operating margin did rise 70 basis points to 7.2%, but the filing credits a lower operating expense rate for that, not price.

source: sec.gov

strong

FY2025 operating margin hit a record 49% (operating profit +101% YoY) as HBM revenue more than doubled — unusually strong pricing power for a memory maker, per SK hynix's FY25 release.

source: news.skhynix.com

strong

SEC-reported operating income in this filing was 42.8% of revenue in fiscal 2025, up from 42.0% in fiscal 2024, even as the 10-K warns that new entrants and white-box alternatives 'may create downward pricing pressure'.

source: sec.gov

Summary

The AI-server line is enormous and it is not a moat - the FY2026 10-K says so in its own margin bridge. AI-optimized servers net revenue went 1,873m in Fiscal 2024 to 9,286m in Fiscal 2025 to 24,683m in Fiscal 2026 (+396% then +166%), lifting total ISG revenue to 60,826m (+40%). Over the same year ISG operating income as a percentage of segment revenue fell 110 basis points to 11.7% 'due to a decline in gross margin rate that outpaced the decline in operating expense rate. Gross margin rate decreased primarily as the result of a shift in mix towards our AI-optimized servers offerings', and the Fiscal 2027 outlook repeats the expectation of 'margin rate pressure resulting from a continuing shift in mix towards our AI-optimized servers offerings'. The cleanest test of pass-through is the filing's product-versus-services split: product net revenue grew 27% to 90,405m at a 13.7% gross margin (down from 15.8% and 17.5%), while services net revenue fell 4% to 23,133m at a 44.8% gross margin. The AI boom arrived entirely as thin product revenue and did not pull the profitable services book along with it. What Dell adds is described plainly as integration: it uses contract manufacturers, buys components from suppliers and 'subsequently sell[s] those components to the manufacturer', and its own 'manufacturing process consists of assembly, software installation, functional testing, and quality control'. The bypass is named too: 'We also face competition from non-traditional IT companies, including large Infrastructure-as-a-Service providers, that often buy their infrastructure directly from original design manufacturers. Competitive pressures could increase if customers choose to move existing workloads to these providers.' What survives as a moat is the part an ODM cannot sell an enterprise: a direct sales force and account teams, a global service and support footprint whose gross margin rate is still rising, storage that held revenue within 3% of flat through the whole mix shift, and Dell Payment Solutions financing that produces multiyear recurring arrangements.

SK hynix's durable advantage rests on an HBM process-and-packaging lead: it held roughly 62% of the HBM market in Q2 2025 (Counterpoint) as NVIDIA's key HBM partner, and delivered industry-first HBM4 mass production. That lead drove record FY2025 results with a 49% operating margin, though rivals are qualifying competing HBM parts.

Arista's edge is a single software image across every box: the 10-K describes EOS, NetDL and CloudVision as one operating model 'from client to cloud', deliberately built on merchant Broadcom silicon and open standards rather than on proprietary hardware lock-in.

Chain position

Integrator between accelerator and component suppliers and enterprise or sovereign buyers: the 10-K says Dell purchases components from suppliers, sells them on to contract manufacturers, and performs 'assembly, software installation, functional testing, and quality control', then reaches customers through a direct sales force and a partner network that generated about 40% of Fiscal 2026 net revenue.

Primary supplier of HBM (high-bandwidth memory) stacked onto NVIDIA's AI accelerators; HBM represented roughly 77% of Q2 2025 revenue.

Networking layer of the AI datacentre; two customers were 26% and 16% of fiscal 2025 revenue and Broadcom supplies the switching silicon.

Products (share / barrier)
  • AI and cloud datacentre Ethernet switching (Etherlink, 7800R AI Spine, 7060 AI Leaf, 7700R4 DES) Leader · Moderate source: sec.gov
  • Campus networking and SD-WAN (campus spine/PoE leaf switches, Wi-Fi, VeloCloud) Challenger · Low source: sec.gov
  • Cloud-grade routing (7280R4 Universal Leaf, 7500R3 and 7800R4 Universal Spine) Challenger · Moderate source: sec.gov
  • EOS, NetDL and CloudVision network software Unknown · Moderate source: sec.gov
  • Network security and monitoring (Arista NDR, DANZ Monitoring Fabric) Niche · Low source: sec.gov
Long-horizon vote +0.05 at weight 0.20 · swarm neutral

Editorial prior, not backtested.

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+0.24 at weight 0.20 · swarm bullish

Editorial prior, not backtested.

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+0.17 at weight 0.20 · swarm neutral

Editorial prior, not backtested.

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