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.
| Constellation Energy | Wiwynn | ASM International | |
|---|---|---|---|
| Moat rating | wide The FY2025 10-K describes the nation's largest nuclear fleet — approximately 22 GW across 14 stations producing 68% of 2025 electric supply — running at a 94.7% capacity factor that 'has been approximately four percentage points better than the industry average annually since 2013', with NRC licences extending to 2054 and an IRA nuclear production tax credit floor from 2024. | narrow The 2025 annual report (published 2026-04-30) shows a real but shallow position: products deployed in "more than 750 hyperscale data centers" and, on the Company's own internally assessed shipment volume, "more than 10% of global server shipments and nearly 30% of global ODM-Direct server shipments" in 2025 — while the same report's own list of negative factors names "Excessive concentration of customers" and a market "getting more and more competitive", discloses three customers at 41.48%, 26.03% and 10.43% of 2025 net sales, and reports 2025 gross profit up 109.77% against revenue up 163.68% for an 8.3% gross margin. Defensible incumbency, not a durable one. | narrow The 2025 annual report (published 2026-03-12) says 'ASM is the leader in the fast-growing single-wafer ALD market – with a market share of 55%+ (ASM estimate, Investor Day 2025)'. It says ASM 'maintained leadership with our market share surpassing 55%' as the industry moved from FinFET to GAA. And it says that 'Based on the breadth of our R&D engagements and critical production-tool-of-record (PTOR) selections already secured in 2025, we expect to at least maintain our market share' into the 1.4nm node. The Q2 2026 results (https://www.asm.com/media/y0mkxj21/20260728-asm-reports-second-quarter-2026-results.pdf) say the 1.4nm node is on track for its first meaningful contribution in the second half of 2026, 'reflecting increased market share gains in both ALD and Epi'. 2025 gross margin was 51.8%. That is a strong, profitable position, but every share figure behind it is ASM's own estimate or expectation, and no independent share source supports it, so the rating is narrow rather than wide. The exposures also weigh: the five largest customers took about 53.6% of 2025 revenue and China more than 30%, and the report describes the main competitors as 'much larger companies from the United States and Asia'. |
| Moat type | cost scale The cited edge is operating cost at scale: average refuelling outages of 22 days in 2025 against industry averages of 33 and 38 days in 2024 and 2023, a capacity factor about four points above the industry every year since 2013, and 'significant economies of scale' in what the filing calls the largest US customer-facing energy platform. | switching costs The report's "Competitive niche" section locates the advantage in the customer program rather than in IP or unit cost: "highly customized solutions for hyperscale data centers", "end-to-end technical integration capabilities ranging from server design and system integration to large-scale L10/L11 rack-level delivery", and a one-stop service "covering product design, integration, optimization, deployment, and after-sales services" across a base of more than 750 hyperscale data centers. Every advantage the section claims is about integration work and customer proximity, none about patents or proprietary silicon, and an 8.3% gross margin is not the profile of a cost advantage; what is left is the friction in an installed, co-designed rack program. | intangibles ip The report grounds the ALD lead in accumulated process know-how and patents rather than unit cost: 'ASM has the broadest portfolio of ALD products with innovative ALD reactor designs. Our strength in chemistries and applications using new materials means our customers can meet advanced node technology challenges.' It also cites a LexisNexis PatentSight study finding that 'ASM holds a strong and impactful patent portfolio on its core strength of ALD as measured by both Competitive Impact and Patent Asset Index'. Switching friction reinforces this. Tools enter fabs through PTOR selection, the report notes that 'Failing a customer during a production ramp could create significant problems for them', and installed systems are supported 'with a view to having them in production 24/7 for 20+ years'. But ASM wins those PTOR slots node by node on process capability, which makes IP the primary source. |
| Leadership | clear leader The 10-K states Constellation is 'the largest nuclear energy company in the U.S.', is 'the nation's largest energy supplier for C&I and residential power volumes' based on EEI data, and has 'over 32% of the C&I market share of direct customer business'. | co leader The report claims "nearly 30% of global ODM-Direct server shipments" for 2025 on internally assessed volume, against an IDC Worldwide Quarterly Server Tracker base of approximately 7.7 million ODM-Direct units within roughly 16.78 million total 2025 server shipments — yet describes the Company only as "one of the major suppliers to international hyperscale data centers". Among the largest in its segment; the report makes no claim to be first. | co leader In single-wafer ALD, which is more than half of equipment sales, the report calls ASM 'the leader' with a 55%+ share. That share is ASM's own estimate; the Investor Day 2025 deck (https://www.asm.com/media/m3jhkm12/asm_investor_day_2025.pdf) sources it to 'ASM internal analysis and TechInsights'. With no independent share source, the band is held at co_leader rather than clear_leader. ASM does not lead every line: 'ASM has the number two share in the Epi equipment market', and in PECVD and vertical furnaces it is 'focused on niche portions of the market'. |
| Pricing power | moderate The 10-K states 'While providing customers with a competitive price is a key focus' in retail, on roughly two-year average C&I contract terms with 77% power and 84% gas renewal rates in 2025, and the nuclear fleet's downside is set by the IRA nuclear PTC 'as unit revenues decline below levels established in the IRA'; SEC-reported operating income was 13.6% of revenue in 2025. | weak 2025 gross margin was 8.3% and operating margin 6.7%; gross profit rose 109.77% while revenue rose 163.68%, so the margin narrowed as volume grew. The report discloses three customers at 41.48%, 26.03% and 10.43% of 2025 net sales, lists "Excessive concentration of customers" among its negative factors, and explains its main-supplier table with "The suppliers are designated by customers." | moderate Gross margin rose from 50.5% to 51.8% in 2025 and was 51.9% in Q2 2026. But the report attributes the 2025 gain to 'a very strong mix, including a continued solid contribution from the Chinese market' and to efficiency programs, not to price. It targets a range of 47% to 51% for 2026-2030, and the Q2 2026 release expects full-year 2026 gross margin 'to be around 51%'. Buyers are concentrated: the 10 largest customers were about 72.3% of 2025 revenue, the five largest about 53.6%, and two customers each contributed more than 10% of total revenue. |
| Summary | Constellation pairs the largest US nuclear fleet with the largest competitive retail book, which lets it sell around-the-clock carbon-free power under long-term contracts such as the 20-year Microsoft PPA restarting Three Mile Island Unit 1 as the 835 MW Crane Clean Energy Center. | Wiwynn sells ODM-Direct — it designs and builds cloud and AI server systems to hyperscale operators' specifications rather than shipping a branded product — and the 2025 annual report grounds its edge in that relationship: "highly customized solutions", integration "from server design and system integration to large-scale L10/L11 rack-level delivery", Open Compute Project participation described as "a core competitive advantage in marketing to global hyperscale data centers", and products deployed in more than 750 hyperscale data centers as of the end of 2025. The report also says that high integration and testing abilities "increases the threshold of vendors in the assembly industry and creates entry barriers". Against that, the same report lists excessive customer concentration and an increasingly competitive market as its negative factors, discloses customers at 41.48%, 26.03% and 10.43% of 2025 net sales, explains its main-supplier table with "The suppliers are designated by customers", and reports an 8.3% gross margin on 2025 revenue of NT$950.66bn. | ASM International, headquartered in the Netherlands, makes wafer-processing equipment with a focus on deposition: single-wafer ALD, silicon epitaxy, PECVD, vertical furnaces, silicon-carbide epitaxy and, since its acquisition of Axus in December 2025, CMP. Spares & Services made up 23% of 2025 revenue. ALD is the core. It was the largest product line, 'clearly accounting for more than half of our equipment sales', and ASM estimates its single-wafer ALD share at 55%+. The report frames ALD as increasingly necessary, saying 'ALD is the only deposition technology capable of meeting the coverage and film-property requirements for complex 3D structures', and expects ALD layers to grow in GAA transistor stacks, backside-power architectures and future 4F² DRAM. Epitaxy is the second-largest line: the report says ASM holds the number two share there and lifted its leading-edge share from 12% in 2020 to 25% in 2024, both by ASM's own figures. 2025 revenue reached a record €3.2 billion at a gross margin of 51.8%; per the Q2 2026 results, Q2 2026 revenue was €1,003 million at 51.9%. The exposures are customer concentration (the five largest customers were about 53.6% of 2025 revenue), geography (Asia was 80% of revenue and China more than 30%), and export restrictions that the report says are 'impacting our ability to sell and service systems in certain jurisdictions and for certain customers'. |
| Chain position | Generator and retailer in one — the fleet is the physical supply behind the long-term carbon-free contracts it sells to large corporate buyers. | The report's cloud/AI-server value-chain diagram places system assembling in the midstream and "Direct sales from original manufacturers" downstream selling to cloud service providers; Wiwynn describes itself as providing "IT equipment and rack system integration service to hyperscale data centers". 82.12% of 2025 revenue came from America. | Upstream wafer-fab-equipment supplier to logic/foundry and memory chipmakers. 'The leading-edge logic/foundry market was the main growth driver for ASM, on the back of 2nm investments' in 2025, advanced-node DRAM was the largest part of memory sales, and Asia was 80% of revenue. |
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| Long-horizon vote | +0.38 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.05 at weight 0.20 · swarm bearish Editorial prior, not backtested. | +0.13 at weight 0.20 · swarm neutral Editorial prior, not backtested. |