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.
| CXMT | Arm Holdings | |
|---|---|---|
| Moat rating | none CXMT's 2026 interim report (published 2026-08-29) names scale and IDM technology as core competencies, but also concedes gaps. It says that compared with the leading international manufacturers the Company 'still has a certain gap in overall scale, technology accumulation and customer resources' (与国际头部厂商相比，公司在整体规模、技术积累、客户资源等方面仍然存在一定差距). It describes its scale effect as 'gradually emerging' (逐步显现), and its gross-margin risk covers the case where the scale effect cannot materialise over the long term (公司规模效应长期无法显现). Its excess returns span a single shortage. The retained-earnings note shows an accumulated deficit of ¥36.65bn entering 2026, after ¥1.87bn of 2025 net profit attributable to the parent, and the first-half 2025 net loss attributable to shareholders was ¥2.33bn. Then first-half 2026 revenue rose 873.64%, which the report attributes to the global DRAM supply shortage, higher prices and sharply higher volumes, and the main-business gross margin reached 84.84%. | 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. |
| Moat type | none On the report's own evidence, no candidate moat source qualifies. Cost scale: the report calls DRAM a highly standardised product (高度标准化的产品) in which the cost advantage of scale is a core competency. But CXMT ranks fourth globally by capacity, and the report, calculating on sales, puts Samsung, SK hynix and Micron at 33.96%, 34.48% and 23.41% of the 2025 global DRAM market, so the scale advantage lies with the leaders. IP: it reports 4,484 domestic patents (3,744 of them invention patents) and 3,400 overseas patents as of 2026-06-30. Yet it describes its core technology as reaching 'international advanced level' (国际先进水平) and flags possible IP disputes with competitors. Switching costs: ¥133.48bn of ¥150.31bn first-half 2026 revenue went through distributors, who under the report's revenue note decide their own resale prices. | 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." |
| Leadership | fast follower TrendForce (2026-09-24) reports that CXMT's global DRAM revenue share rose to 9.5% in 2Q26 from 7.6% in 1Q26, 'placing it fourth behind Samsung at 39.4%, SK hynix at 24.9%, and Micron at 23.3%'. It is catching up through generation-skipping R&D. The interim report had its fifth process platform in customer certification, and a voluntary disclosure on 2026-09-21 announced that platform's mass production, adding that its products are not yet in scale sales and yields need time to ramp. TrendForce's listing analysis (2026-07-28) still says CXMT 'still trails Samsung, SK hynix, and Micron in advanced processes, product performance, yields, and certification by high-end customers'. | 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. |
| Pricing power | weak CXMT is a price taker riding the cycle. The interim report attributes first-half revenue growth to the global DRAM supply shortage, rising prices and sharply higher volumes. It records industry prices between 2015 and 2025 as high as $7.89/GB and as low as $1.78/GB in first-half 2023, and it states that the continued steep price rise is not sustainable. Main-business revenue was ¥15.22bn against cost of ¥13.29bn in first-half 2025, and ¥150.04bn against ¥22.75bn in first-half 2026. Most sales go through distributors, who set their own resale prices. | 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. |
| Summary | CXMT (ChangXin) is a Hefei-based IDM that designs and fabricates DDR5 and LPDDR4X/LPDDR5/5X/LPDDR6 memory and sells DRAM wafers, chips and modules. Its 2026 interim report says it reached its fourth process platform through a 'generation-skipping' (跳代研发) R&D strategy, and that it ranks first in China and fourth globally by shipments and sales. First-half 2026 revenue was ¥150.31bn (DDR series ¥69.47bn, LPDDR series ¥78.19bn), with a main-business gross margin of 84.84%. TrendForce puts its 2Q26 DRAM revenue share at 9.5%, up from 7.6% in 1Q26. The position is real but recent. The report concedes gaps to the three leaders in scale, technology and customers. The customers it names are Alibaba Cloud, ByteDance, Tencent, Lenovo, Xiaomi, Transsion, Honor, OPPO and vivo. On 2026-06-08 the US Defense Department added its subsidiary ChangXin Memory to the Section 1260H list. TrendForce notes that export controls leave CXMT relying on DUV multiple patterning rather than EUV, and that its prospectus 'has not disclosed a clear mass-production timetable' for HBM. The report itself warns that the continued steep rise in DRAM prices is not sustainable (价格的持续大幅上涨不具备可持续性) as international makers add capacity. | 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." |
| Chain position | Upstream DRAM IDM selling wafers, chips and modules to server, smartphone, PC and automotive makers, mostly through distributors (¥133.48bn of ¥150.31bn first-half 2026 revenue). | 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. |
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| Long-horizon vote | -0.06 at weight 0.20 · swarm bullish Editorial prior, not backtested. | +0.42 at weight 0.20 · swarm neutral Editorial prior, not backtested. |