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.
| AMD | MaxLinear | Silicon Motion Technology | |
|---|---|---|---|
| Moat rating | narrow AMD's FY2025 10-K documents real but bounded advantages: approximately 7,200 U.S. patents and roughly 18,900 patent matters worldwide, an outright claim that 'We are the market share leader in semi-custom game console products,' and gross margin of 50% on revenue up 34% to $34.6 billion. The same filing sets the ceiling: 'Some of our competitors may possess stronger market positions, larger customer bases, more design wins, and greater financial, sales, marketing, and distribution resources than us'; Nvidia is named 'the discrete GPU market share leader'; and AMD relies on TSMC 'for the production of all wafers for microprocessor and GPU products at 7 nanometer (nm) or smaller nodes.' Advantages that are genuine, contested, and dependent on a shared foundry are narrow, not wide. | none MaxLinear’s FY2025 10-K does not show a durable advantage. Its income statement reports revenue of $693,263 thousand in 2023, $360,528 thousand in 2024 and $467,641 thousand in 2025, with operating losses of $38,221 thousand, $223,352 thousand and $126,890 thousand. The risk factors say “Increased competition has resulted in price pressure, decreased demand, reduced revenue and profitability, and loss of market share”; the business section says competitors include “companies with much longer operating histories, greater name recognition, and substantially greater financial, technical and operational resources”; and because its products “often are building block semiconductors” it also faces integrated-circuit makers, “some of which may be existing customers or platform partners”. Two customers were 28% of 2025 net revenue and the ten largest 65%, and “substantially all of our sales to date have been made on a purchase order basis”. Gross profit held up - $385,663 thousand, $194,782 thousand and $265,814 thousand for 2023 to 2025 - and the AI optical ramp has lifted 2026 results, but a revenue base that nearly halved in one year and three straight years of operating losses do not evidence a moat. | narrow Silicon Motion's edge is real but shared with Phison and exposed to its own customers. Phison's 2025 annual report lists 'Phison, Silicon Motion, ASolid, Jmicron, etc.' as 'The major suppliers of controller chips'. Tom's Hardware (2025-05-29) reports that over a dozen SSD makers, among them Micron, Adata, Crucial, Kingston and Lexar, adopted Silicon Motion's SM2508 for PCIe 5.0 drives. It says a high-end market 'dominated' by Phison's E26 had been a 'monopoly' that 'is about to end'. NAND makers buy its controllers as well: the FY2025 20-F names two of them, Kioxia and Micron, alongside PHISEMI and AFASTOR, as customers above 10% of 2025 revenue. Gross profit was 42.3%, 45.9% and 48.3% of net sales in 2023, 2024 and 2025 (20-F), and 50.2% in Q2 2026 (results release, 2026-07-30). Against that, the 20-F says 'All the major NAND flash makers also have internal captive sources of controllers' and 'In the past, our operating results were negatively affected when NAND flash customers chose to insource controllers'. It also says controller average selling prices 'have historically decreased over time'. Phison's report gives market share as 'Not applicable because there is no clear statistical data', and no independent share figure was found, so the rating is narrow, not wide. |
| Moat type | intangibles ip The FY2025 10-K locates the durable asset in design IP rather than manufacturing: 'We rely on contracts and intellectual property rights to protect our products and technologies from unauthorized third-party copying and use,' with approximately 7,200 U.S. patents and about 18,900 patent matters worldwide spanning x86 EPYC/Ryzen CPUs, CDNA/RDNA graphics and the Versal/Zynq adaptive-SoC families, and it credits customer wins to 'our broad IP portfolio and leadership in design, integration and advanced packaging.' It is explicitly not cost_scale: AMD is fabless and 'utilize[s] Taiwan Semiconductor Manufacturing Company Limited (TSMC) for the production of wafers' — the same leading-edge foundry its merchant competitors use, so no manufacturing-scale advantage accrues to it. | none No single source of advantage in the 10-K is strong enough to name. MaxLinear has “over one thousand issued patents” and says consideration under intellectual property sale agreements “has previously been and is currently expected in the future be material”, but the same filing describes its products as building blocks that larger vendors can integrate, says some optical-interconnect customers are “module makers who are vertically integrated, where we compete with internally supplied components”, and claims only that “We believe that we compete favorably” on factors from product performance to price. Its RF-CMOS integration know-how is real, but nothing in the filing shows customers locked in or rivals unable to match it. | intangibles ip The advantage is controller and firmware know-how backed by patents, not lock-in. The FY2025 20-F says Silicon Motion has 'one of the broadest portfolios of controller intellectual property developed from our deep understanding of NAND characteristics'. It held '3,276 patents and 1,035 pending applications worldwide' as of April 7, 2026, and spent US$262.7 million on R&D in 2025; 1,837 of its 2,009 employees are engineers. It claims more NAND components from Kioxia, Micron, Samsung, SK Hynix, Sandisk and YMTC 'are supported by Silicon Motion controllers than any other company', a claim no outside source confirms. Switching costs are limited: Tom's Hardware (2025-05-29) lists drive makers moving to the SM2508 for their next-generation Gen5 SSDs, so customers can change controller suppliers between generations. In a Tom's Hardware interview (2026-06-16), Silicon Motion says its controller hardware is 'generally not customized' and that tailoring for each PC maker is done in firmware. |
| Leadership | fast follower The FY2025 10-K itself places AMD behind the pace-setter in its two most important markets: 'Our principal competitor in the supply of discrete graphics is Nvidia, who is the discrete GPU market share leader,' and the risk factors state Nvidia 'leverages its market position in data center GPU, financial resources, and proprietary software ecosystem to promote its systems and influences customers who do business with us.' AMD is nonetheless executing 'an annual cadence of leadership for AMD Instinct solutions' and has won gigawatt-scale commitments (OpenAI, 6 GW) — following fast and closely, not setting the pace. | fast follower In its fastest-growing line MaxLinear is a second source. Deep Fundamental’s September 27, 2024 deep dive (https://deepfundamental.substack.com/p/deep-dive-optical-module-market) says “Marvell ($MRVL) and Broadcom ($AVGO) are two major suppliers of DSPs, with Marvell holding the top position in the market”, that “Coherent also sources heavily from Marvell, with Broadcom/ Maxlinear potentially serving as second supplier with 20-30% share”, and that MaxLinear offers “DSPs at about half the price of Marvell's if it can achieve a meaningful mass production volume of at least 100K units per month”. Keystone has since reached volume - management said on the Q2 2026 call that it “continues to ramp into high volume production at major hyperscale customers across U.S. and Asia” - but the 10-K names Broadcom, Qualcomm, Realtek, Skyworks, Credo, MediaTek, Marvell, MACOM, Texas Instruments, Analog Devices, Renesas, Microchip and Semtech as primary merchant competitors, and no third-party source found ranks MaxLinear first in any of its markets. | co leader Third-party sources treat Silicon Motion and Phison as rivals in merchant NAND controllers. Phison's 2025 annual report lists both, together with ASolid and JMicron, among 'The major suppliers of controller chips', and gives its own market share as 'Not applicable because there is no clear statistical data'. Tom's Hardware (2025-05-29) says Phison's E26 had dominated high-end PCIe 5.0 client SSDs until SM2508 drives from over a dozen makers arrived. Its 2026-06-16 interview says 'both Silicon Motion and its rival Phison posted record Q1 results'. In that interview Silicon Motion puts its worldwide client SSD controller share at 'approaching 30% to 32%' and its UFS plus eMMC share of the Android smartphone market at 'around 25% to 26%'. These are the company's own estimates, and no tracker confirms them. The 20-F also names Microchip and small Chinese merchant controller suppliers as competitors. The band is therefore co-leader, not leader. |
| Pricing power | moderate FY2025 gross margin was 50%, up from 49% in 2024 per the 10-K — healthy and improving — but the same filing attributes average-selling-price pressure to competitors: Intel 'uses its microprocessor market position to price its products aggressively and target our customers and channel partners with special incentives. These aggressive activities have reduced and may reduce our unit sales and average selling prices for many of our products'. Pricing power is real but contested. | moderate Mixed. Gross profit has stayed in proportion through the cycle - the 10-K’s income statement shows $265,814 thousand on revenue of $467,641 thousand in 2025 - and the Q2 2026 release (https://www.sec.gov/Archives/edgar/data/0001288469/000128846926000050/a06302026exhibit991.htm) reports GAAP gross margin of 57.8% against 56.5% a year earlier, guiding Q3 to 57.0%-60.0%. But the 10-K says “From time to time, we have reduced the average unit price of our products due to competitive pricing pressures, new product introductions by us or our competitors, and for other reasons, and we expect that we will have to do so again in the future”, that under some distributor agreements “we provide protection for reductions in selling prices of the distributors' inventory”, and in optical DSPs it entered as the lower-priced challenger. | moderate Margins have risen steadily. Gross profit was 42.3%, 45.9% and 48.3% of net sales in 2023, 2024 and 2025 (20-F). Gross margin was 50.2% in Q2 2026, and Q3 2026 is guided at 49.9% to 50.9% GAAP (results release, 2026-07-30). The 20-F credits 2025's gain 'primarily' to 'new projects and our ability to efficiently scale new products'. But it also says controller average selling prices 'have historically decreased over time'. It says the company may be forced to cut prices 'in response to new product introductions by our competitors', and that it gives large customers 'volume-related, price-discount incentives'. On SSD solutions, which contain NAND, it has 'limited ability to mark-up the cost of NAND flash components'. In the 2026 shortage, the company told Tom's Hardware (2026-06-16) that controller revenue grew because demand shifted to high-end controllers 'with higher ASPs', which more than made up for weaker low-end sales. |
| Summary | AMD's edge is architectural design IP executed on someone else's fabs. The FY2025 10-K describes a full-stack portfolio — EPYC server CPUs, Instinct AI accelerators, Ryzen client parts where 'AMD was the first company to integrate a dedicated neural processing unit (NPU) on the same SoC as an x86 CPU for AI PCs,' Radeon graphics, Pensando networking and Versal adaptive SoCs — backed by roughly 18,900 patent matters worldwide, and it discloses gigawatt-scale customer commitments (an October 2025 agreement with OpenAI 'to deploy 6 gigawatts of AMD GPUs,' first gigawatt on Instinct MI450). The same filing bounds that moat: Nvidia is 'the discrete GPU market share leader' and 'leverages its market position in data center GPU, financial resources, and proprietary software ecosystem'; Intel 'uses its microprocessor market position to price its products aggressively'; Arm architectures and customers who 'internally develop products to support similar AI workloads' are named as encroaching; and every wafer at 7 nm or below comes from TSMC. Revenue grew 34% in FY2025 with Data Center up 32%, but the filing's own competitive framing places AMD in the challenger seat rather than the entrenched one. | MaxLinear is a fabless designer of RF, analog and mixed-signal communications SoCs whose core skill, per its FY2025 10-K, is combining broadband RF and analog front ends with digital signal processing in standard CMOS. It sells into broadband access (cable, fiber PON and DSL gateways - approximately 44% of 2025 net revenue), home connectivity (Wi-Fi, MoCA, G.hn and Ethernet), wired and wireless infrastructure including optical data-center DSPs, and industrial and multi-market interface and power products. After a downturn that took revenue from $693,263 thousand in 2023 to $360,528 thousand in 2024, the AI optical ramp is turning it around: the Q2 2026 release reports revenue of $168,847 thousand, up 55% year over year, with the infrastructure business up 145% on the Keystone PAM4 DSP ramp for 800G, and management raised its 2026 optical data-center revenue outlook to $210 million-$230 million on the call. The moat question is whether that growth rests on anything durable. In optical DSPs MaxLinear entered as a lower-priced second source to Marvell; elsewhere it competes with Broadcom, Qualcomm, Realtek and MediaTek, which can integrate the functions it sells; customers are concentrated; and the 10-K still carries the Silicon Motion arbitration over its terminated merger, whose outcome it says it cannot predict. On this record MaxLinear is a technically capable challenger without a moat. | Silicon Motion is a fabless designer of NAND flash controllers. Its customers are NAND flash makers, module makers, hyperscalers and OEMs. Revenue rose 10% to US$885.6 million in 2025 (20-F). SSD controllers were 45% to 50% of 2025 net sales, eMMC and UFS controllers 40% to 45%, and SSD solutions 0% to 5%. Its five largest customers were approximately 66% of 2025 revenue, and 79% of revenue came from sales in China, Japan and Singapore. The 2026 NAND shortage lifted Q2 2026 net sales to $451.0 million, up 127% Y/Y (results release, 2026-07-30). The company told Tom's Hardware (2026-06-16) that it gained because PC makers short of NAND turned to module makers, and 'most module makers use our controllers'. In merchant controllers, Phison's annual report names it alongside Phison among the major suppliers, and Tom's Hardware calls Phison its rival, but every major NAND maker also has its own captive controllers (20-F). Its growth bets are MonTitan enterprise SSD controllers, whose shipments were set to begin in Q2 2026 per TrendForce (2026-04-29), and Ferri and boot-drive storage solutions. In the enterprise SSD market, TrendForce's 2Q26 top five brands are all NAND makers. |
| Chain position | A fabless merchant-silicon designer sitting one layer above the foundries: the FY2025 10-K states AMD relies on TSMC 'for the production of all wafers for microprocessor and GPU products at 7 nanometer (nm) or smaller nodes' and primarily on GLOBALFOUNDRIES above 7 nm, with packaging and test performed by Asia-Pacific ATMP partners — so its cost, supply and cadence are inherited from partners it does not control. | MaxLinear sells chips, much of it through Asian distributors, ODMs and module makers - products shipped to Asia were 82% of 2025 net revenue, including 49% to Hong Kong - that build cable modems, PON terminals, Wi-Fi gateways, base-station radios and optical transceivers for operators and hyperscale data centers. In the AI chain it sits beside the optical-module makers as a DSP supplier, competing with Marvell and Broadcom and, at vertically integrated module makers, with internally supplied components. | Fabless merchant NAND controller designer. It sends its designs to independent foundries (Tom's Hardware says the SM2508 is made on TSMC's N6) and sells controllers to NAND makers such as Micron and Kioxia, to module makers and to OEMs. NAND makers are both among its largest customers and, through their in-house controllers, its competitors. |
| Products (share / barrier) |
|
|
|
| Long-horizon vote | +0.06 at weight 0.20 · swarm bullish Editorial prior, not backtested. | +0.01 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.13 at weight 0.20 · swarm neutral Editorial prior, not backtested. |