护城河对比

The FY2026 10-K competition section describes tool-level qualification lock-in as the structural fact of the industry: 'semiconductor manufacturers must make a substantial investment to qualify and integrate new capital equipment into semiconductor production lines. As a result, once a semiconductor manufacturer has selected a particular supplier's equipment and qualified it for production, the manufacturer generally maintains that selection for that specific production application and technology node as long as the supplier's products demonstrate performance to specification in the installed base.' The filing then sizes what that incumbency is worth: of 23,232,690 thousand dollars of FY2026 revenue, 8,347,202 thousand - about 36% - was customer-support-related revenue and other, which the same document defines as 'sales of customer services, spares, upgrades, and non-leading-edge equipment' sold back into the installed base. A qualified position plus a third of revenue annuitised against it is a durable barrier rather than a cyclical one.

来源：sec.gov

FY2025 10-K (filed 2025-08-19) grounds a narrow rating: on one side ~1,020 U.S. and ~1,100 foreign patents with expirations through 2045 plus vertically integrated wafer fabs (US, UK, Japan, Thailand) behind its laser chips and photonic ICs; on the other, Item 1A states optical communications products 'have increasingly become subject to commoditization' with 'predominantly Asia-based competitors' intensifying pricing pressure and a historical 'continued decline of average selling prices' expected to continue.

来源：sec.gov

CXMT 的 2026 年中期报告（发布于 2026-08-29）将规模和 IDM 技术列为核心竞争力，但也承认存在差距。报告称，与国际领先厂商相比，公司 '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）。报告将其规模效应描述为 'gradually emerging'（逐步显现），其毛利率风险涵盖规模效应长期无法实现的情形（公司规模效应长期无法显现）。其超额回报仅跨越一轮短缺。留存收益附注显示，在 2025 年实现归属于母公司的净利润 ¥1.87bn 之后，进入 2026 年时累计亏损为 ¥36.65bn；2025 年上半年归属于股东的净亏损为 ¥2.33bn。随后 2026 年上半年营收增长 873.64%，报告将其归因于全球 DRAM 供应短缺、价格上涨和销量大幅增加，主营业务毛利率达到 84.84%。

来源：static.cninfo.com.cn

The 10-K grounds the advantage in the cost of requalification, not in scale or patents: a customer that has qualified a competitor's tool is hard to win, and conversely Lam's own qualified positions persist for that application and node. The same section adds that the company must keep serving 'our installed base of customers through the delivery of high-quality and cost-efficient spare parts', naming the installed base as the asset being defended.

来源：sec.gov

Per the FY2025 10-K, the moat rests on intangibles/IP and process know-how: patent portfolio (~1,020 U.S. / ~1,100 foreign, ~780 pending), InP laser and photonic-integrated-circuit technology (Oclaro, NeoPhotonics acquisitions), coherent DSP/ASIC lines (IPG telecom transmission acquisition), and its own wafer fabrication, assembly and test facilities — the company states it does not broadly license its IP absent adequate consideration or cross-licenses.

来源：sec.gov

按报告自身的证据，没有一个候选的护城河来源能够成立。成本规模：报告称 DRAM 是一种高度标准化的产品（高度标准化的产品），规模带来的成本优势是其中的核心竞争力。但 CXMT 按产能位居全球第四，而报告按销售额计算，Samsung、SK hynix 和 Micron 分别占 2025 年全球 DRAM 市场的 33.96%、34.48% 和 23.41%，因此规模优势在领先者一方。知识产权：报告披露截至 2026-06-30 拥有 4,484 项境内专利（其中 3,744 项为发明专利）和 3,400 项境外专利。但它将自身核心技术描述为达到 'international advanced level'（国际先进水平），并提示可能与竞争对手发生知识产权纠纷。转换成本：2026 年上半年 ¥150.31bn 营收中有 ¥133.48bn 通过经销商实现，而根据报告的收入附注，经销商自行决定转售价格。

来源：static.cninfo.com.cn

The 10-K claims position but not primacy: 'We believe we are in a strong position with our leadership and expertise in deposition, etch, and clean markets.' The same document names Applied Materials as primary competitor in deposition and Applied Materials, Hitachi and Tokyo Electron as primary competitors in etch, which is a shared-leadership structure rather than a clear single leader.

来源：sec.gov

Mixed by layer: the FY2025 10-K self-describes Lumentum as 'a leading provider of optical and photonic products... recognized as an industry leader based on revenue and market share' (company's own characterization), while LightCounting's May 2026 optical vendor landscape places Lumentum near the bottom of its transceiver-only Top 10 — noting the list 'accounts for sales of optical transceivers only, excluding all other products, which explains lower rankings of Coherent and Lumentum' and that 'Neither CIG nor Lumentum plan to stay at the bottom of the list for much longer.' Co-leader in optical components/chips; follower in merchant transceiver modules behind Innolight and Eoptolink.

来源：sec.gov

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'.

来源：static.cninfo.com.cn

Real but bounded, and the filing is explicit that the recent gain was mix rather than price. Gross margin as a percent of total revenue rose 180 basis points to 50.5% in fiscal 2026 from 48.7% in fiscal 2025 (gross margin of 11,725,308 thousand dollars on revenue of 23,232,690 thousand, against 8,979,059 on 18,435,591; 7,052,791 on 14,905,386 in fiscal 2024), and the MD&A attributes that: 'Gross margin as a percentage of revenue increased in fiscal year 2026 compared to fiscal year 2025 largely due to favorable customer mix, partially offset by aluminum and steel tariff-related spend.' Against it, the same filing says manufacturers evaluate suppliers on 'overall cost of ownership', that the spares business competes with third-party spare parts providers, and that the customer list is a handful of very large buyers (Micron, Samsung, SK hynix and TSMC named as the most significant customers).

来源：sec.gov

The May 5, 2026 Q3 FY2026 earnings release shows current pricing traction — CEO cites 'operational rigor, pricing discipline, and product mix' behind a 540 bps sequential non-GAAP gross-margin gain to 47.9% — but the FY2025 10-K states pricing pressures 'have led to a continued decline of average selling prices across our business and we expect that these historical trends will continue,' so power is cyclical/mix-driven rather than structural.

来源：sec.gov

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.

来源：static.cninfo.com.cn

Upstream wafer-fabrication-equipment supplier; the 10-K names Micron, Samsung, SK hynix and TSMC as its most significant customers across FY2024-FY2026, so Lam sits one step above the memory and foundry capacity that AI compute depends on.

Upstream photonics supplier into AI/cloud datacenter and telecom infrastructure: sells transceivers, laser chips, CPO components and OCS to cloud operators, AI infrastructure providers and NEMs, and also supplies components to transceiver makers who compete with it ('Some of these competitors are also our customers' — FY2025 10-K). Concentrated demand: Customer A 16.0% and Customer B 15.4% of FY2025 net revenue; manufacturing concentrated in Thailand, China, UK, Slovenia, Japan and US with sole/limited-source component exposure.

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).

• Clean systems (EOS, DV-Prime, Da Vinci, SP Series, Coronus families) 挑战者 · 中等 来源：sec.gov
• Customer Support Business Group (spares, upgrades, service, Reliant) 领先 · 中等 来源：sec.gov
• Deposition systems (ALTUS, SABRE, VECTOR, Striker families) 前三 · 深 来源：sec.gov
• Etch systems (Kiyo, Flex, Vantex, Syndion, Argos families) 前三 · 深 来源：sec.gov

• Datacom optical transceivers & data interconnects 挑战者 · 中等 来源：lightcounting.com
• High-speed laser chips & optical components 领先 · 深 来源：sec.gov
• Industrial & consumer lasers (incl. 3D-sensing VCSELs) 挑战者 · 中等 来源：sec.gov
• Optical circuit switches (OCS) 细分市场 · 中等 来源：sec.gov
• Telecom transmission & transport 前三 · 深 来源：sec.gov

• DDR5 DRAM chips and modules 未知 · 深 来源：static.cninfo.com.cn
• LPDDR4X 前三 · 中等 来源：trendforce.com
• Mobile DRAM (LPDDR series) 挑战者 · 深 来源：trendforce.com

编辑先验，未经回测。

查看它究竟如何投票 →

编辑先验，未经回测。

查看它究竟如何投票 →

编辑先验，未经回测。

查看它究竟如何投票 →