Compare moats
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.
| Fabrinet | Arm Holdings | Coherent Corp | |
|---|---|---|---|
| Moat rating | narrow The FY2026 10-K grounds a real but bounded defence. On the defence side: Item 1 states that in the manufacturing services market "there are significant barriers to entry in our existing and target markets, including lengthy sales cycles, the need to demonstrate complex precision optical and electro-mechanical engineering and manufacturing capabilities to a prospective customer and the ability to protect a customer's intellectual property," and that qualification of a program "may take three to six months or longer to complete." On the limiting side, the same filing shows the protection does not reach price: gross profit was 12.0% of revenues in FY2026 against 12.1% in FY2025 and 12.4% in FY2024 even as revenue rose 35.7% to $4.64 billion, four customers each exceeded 10% of revenue (Cisco 19.9%, NVIDIA 16.3%, Nokia 10.7%, Amazon 10.5%), and "reliance on a small number of customers gives those customers substantial purchasing power and leverage in negotiating contracts with us." Sales are made on "individual purchase orders that have short lead times and are subject to revision or cancellation," so the qualified program is sticky while the contract is not. | wide Arm's FY2026 20-F states it "maintained market share in the mobile applications processor market of greater than 99% for many years," and describes the Arm platform as "the most pervasive architecture in the world," with "more than 350 billion Arm-based chips reported as shipped cumulatively" as of March 31, 2026 — a durable, dominant position. | narrow The FY2026 10-K (filed 2026-08-14) claims 'Coherent is a global leader in photonic technology' whose 'broad photonic technology platform is foundational to the performance and scalability of AI datacenters', and the NVIDIA relationship hardens it — a 'multi-year strategic agreement with NVIDIA ... includes a multi-billion-dollar purchase commitment ... as well as future access and capacity rights', plus a $2 billion NVIDIA equity investment. But the largest line remains standardized, contested transceivers where LightCounting's May 2026 vendor landscape reports 'Eoptolink reached the #2 rank for the first time in 2025, surpassing Coherent.' Real advantages, contested largest market: narrow, not wide. |
| Moat type | switching costs The 10-K locates the stickiness in qualification rather than in patents or scale. Customers "do not purchase our services until they qualify the services and satisfactorily complete factory audits and vendor evaluations"; qualification "may take three to six months or longer"; production is transferred "copy-exact: the setup of a production process identical to the one used by our customer"; and the filing's own experience of changing a component source is that it "resulted in our customers or their end customers requiring requalification and validation of components, a process that can often be lengthy and has negatively impacted the timing of our revenue" — the same friction a customer would face moving the program elsewhere. The filing rules out an IP-based moat itself: "Historically, patents have not played a significant role in the protection of our proprietary rights," and any process improvement developed for a customer's product is "immediately assigned to that customer." The Thailand cost base is a genuine advantage but the filing warns it is not durable on its own — "Wage increases may impact our ability to sustain our competitive advantage and may reduce our profit margin." | intangibles ip Per the 20-F, Arm's advantage rests on its proprietary CPU architecture (ISA), which "is essentially a common language for software developers" and "sets the foundation for a large library of compatible software," reinforced by switching costs: customers "likely would incur significant costs in switching to competitors' architecture." | intangibles ip The FY2026 10-K grounds the advantage in the technology platform itself: 'Coherent is a global leader in photonic technology. Our broad photonic technology platform is foundational to the performance and scalability of AI datacenters. AI runs on compute, but it scales on optical connectivity' — materials-to-device photonics know-how, including the indium phosphide capacity it is expanding in Sherman, Texas 'to address our increased customer demand and industry-wide shortage.' |
| Leadership | co leader The leadership claim in the filing is the company's own qualitative assessment: "We believe we are a leader in manufacturing products for the optical communications market," and, on breadth of process technology, "Based on our experience with customers and our qualitative assessment of our capabilities, we believe we provide a broader array of process technologies to the optics industry than any other manufacturing services provider." The same Item 1 names a crowded field against it — "Benchmark Electronics, Inc., Celestica Inc., InnoLight Technology (Suzhou) Ltd., Jabil Inc., Sanmina Corporation, Venture Corporation Limited and Eoptolink Technology Inc., Ltd., as well as the internal manufacturing capabilities of our customers" — and no independent share ranking is given, so the record supports front-of-field standing but not sole primacy. | clear leader 20-F: >99% share of the mobile applications processor market for many years and "the most pervasive architecture in the world"; principal contested arena is the fast-growing data-center CPU market, where Arm is still a challenger to x86. | co leader The FY2026 10-K asserts 'Coherent is a global leader in photonic technology', but in its dominant product category LightCounting's May 2026 update reports 'Eoptolink reached the #2 rank for the first time in 2025, surpassing Coherent' behind leader Innolight — a top-tier but not #1 position in transceivers. |
| Pricing power | weak Gross profit was 12.0% of revenues in FY2026, 12.1% in FY2025 and 12.4% in FY2024 — flat to down across three years in which revenue grew from $2.88 billion to $4.64 billion — and the FY2026 increase in gross profit is attributed to "sales volume and product mix," not price. Item 1 says so directly: "we expect the prices we charge for our manufactured products to decrease over time (partly as a result of competitive market forces)," with the offset coming from cycle-time, mix, yield and material-cost work rather than from rate. The risk factors add that customer consolidation gives buyers "increased leverage that may result in, among other things, decreases in our average selling prices," and that new competition "could result in price reductions for our services, reduced gross profit margins or loss of market share." | strong GAAP gross margin was ~98% in FY2026 ($4,799M gross profit on $4,920M revenue), up from 97% (FY2025) and 95% (FY2024), and royalty growth was driven by "an improved mix of products with higher royalty rates per chip, such as Armv9 technology" — evidence of per-chip pricing power. Caveat: the 20-F notes ASPs decline over a chip generation and royalty per chip generally falls as volume rises. | moderate Fiscal 2026 Datacenter & Communications segment profit grew faster than revenue (47 percent versus 40 percent per the 10-K), and the filing cites an 'industry-wide shortage' behind its indium phosphide expansion; against that, the transceiver category's standardization and rising rival capacity keep pricing power moderate rather than strong. |
| Summary | Fabrinet is the neutral outsourced factory for complex photonics. The FY2026 10-K describes a business that wins on qualification and IP hygiene rather than on product ownership: a "factory-within-a-factory" that physically segregates each customer's engineers and floor space, copy-exact line transfers, Telcordia-grade environmental qualification, and a claim that "there is no other manufacturing services provider with a similar breadth and depth of optical and electro-mechanical engineering and process technology capabilities that does not directly compete with its customers in their end-markets." That neutrality is claimed as a belief, not demonstrated — the filing's own framing is "we believe" — and Item 1 names the field it is measured against without characterising any of them: "Benchmark Electronics, Inc., Celestica Inc., InnoLight Technology (Suzhou) Ltd., Jabil Inc., Sanmina Corporation, Venture Corporation Limited and Eoptolink Technology Inc., Ltd., as well as the internal manufacturing capabilities of our customers." Once a program is qualified it tends to stay, and "in many cases, we are the sole outsourced manufacturing partner used by our customers for the products that we manufacture for them." What the moat does not buy is margin. Revenue grew 35.7% in FY2026 to $4.64 billion on the AI-datacenter build-out — data center products are now 47.9% of revenue — yet gross margin slipped to 12.0%, and Item 1 concedes the company expects "the prices we charge for our manufactured products to decrease over time." The two live erosion paths are named in the risk factors: customer consolidation that "may result in, among other things, decreases in our average selling prices," and customers who "acquired the capacity to manufacture products in-house." Concentration cuts both ways this year — FY2025 had two customers above 10% of revenue, FY2026 had four, so the book broadened even as its scale grew. | Arm's durable advantage is its proprietary CPU architecture plus the software ecosystem locked to it: as of March 31, 2026 more than 350 billion Arm-based chips had shipped cumulatively, the platform "supports a global community of more than 22 million developers" and "runs the vast majority of the world's software," which underpins its greater-than-99% share of mobile application processors held "for many years." | AI datacenter optics is now the engine: Datacenter & Communications revenue rose 40 percent to $5,275 million in fiscal 2026 with segment profit up 47 percent to $1,330 million, 'driven primarily by transceivers', and NVIDIA both committed multi-billion-dollar purchases with capacity rights and invested $2 billion in the company — while the transceiver league table stays contested, with LightCounting placing Coherent third behind Innolight and Eoptolink. |
| Chain position | A contract manufacturer sitting between optical components and the network and AI-datacenter OEMs whose brands ship the finished box. FY2026 revenue is 47.9% data center, 33.3% communications infrastructure and 18.8% automotive, industrial and other markets (FY2025: 46.2% / 30.7% / 23.1%), with Cisco, NVIDIA, Nokia and Amazon each above 10% of revenue. Fabrinet also integrates one layer down, designing and fabricating its own customized optics and glass — crystals, ferrules, precision glass tubing — at Fuzhou, China and Mountain Lakes, New Jersey, both for its own assemblies and for the merchant market, while volume manufacturing runs from the Pinehurst and Chonburi campuses in Thailand. | Arm licenses the CPU architecture and core IP that sit at the foundation of nearly all mobile SoCs and a growing share of AI/cloud data-center CPUs (CSP in-house Grace/Graviton-class designs and Arm's own AGI data-center CPU), placing it upstream of much of the AI compute stack. | Optical-connectivity supplier to AI datacenters — transceivers, datacenter interconnect and lasers — now with NVIDIA purchase commitments and equity on its cap table. |
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| Long-horizon vote | +0.05 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.42 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.13 at weight 0.20 · swarm neutral Editorial prior, not backtested. |