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.
| Amkor Technology | Apple | ASE Technology Holding | |
|---|---|---|---|
| Moat rating | narrow The FY2025 10-K describes a real but bounded edge. On the plus side, Amkor says "Our scale and geographic diversity allow us to qualify production at multiple sites, optimize asset utilization and absorb large orders that require quick turnaround." It also says "Amkor has built long-standing relationships with most of the world's leading semiconductor companies over the last five decades." And it says that "in line with industry practice, customers usually require us to pass a lengthy and rigorous qualification process that may take several months". It falls short of wide because the same filing calls the market "highly competitive", names ASE Technology, JCET Group and Powertech Technology as rivals, and says Amkor faces Asian providers "including companies with significantly greater processing capacity, financial resources". It also says foundries "substantially larger than us" have expanded into packaging and test, and that IDMs and foundries "may decide to shift some or all of their outsourced packaging and test services to internally sourced capacity". Returns are thin: MD&A gross margin was 14.0% in 2025, 14.8% in 2024 and 14.5% in 2023, with a 7.0% operating margin in 2025. | narrow Argued, not assumed. The FY2025 10-K does evidence a real moat in margin: total gross margin percentage rose 44.1% (2023) to 46.2% (2024) to 46.9% (2025) in markets the same filing describes as characterised by 'aggressive price competition, downward pressure on gross margins.' But the filing bounds the claim itself: it concedes 'a minority market share in the global smartphone, personal computer, tablet and wearables markets,' it discloses no retention, active-device or installed-base figure anywhere (its only 'large installed bases of active devices' reference describes competitors), and it discloses that both of the highest-margin layers are already being cut down by force -- Apple is 'currently subject to a court order preventing it from imposing any commission or fee on certain purchases' on the U.S. App Store storefront, has had to open 'alternative methods of distribution for iOS and iPadOS apps, alternative payment processing' in the EU, and warns that a reversal on appeal in the Google search case could impose remedies 'prohibiting Google from offering the Company commercial terms for search distribution.' A moat that earns 46.9% gross margin but whose most profitable layer is being narrowed by two courts and a regulator is narrow, not wide. | narrow The FY2025 20-F argues ASEH out-competes IDM in-house lines because serving "a large base of customers across a wide range of products" lets it "reduce costs and shorten production cycles through high-capacity utilization and process expertise" and gives its equipment "a longer useful life" — a real but bounded edge, since the same filing calls the global packaging and testing market "highly competitive", notes "most of our customers obtain services from more than one source", flags foundry encroachment ("TSMC has offered advanced packaging technologies such as integrated fan-out"), and warns that "some of our competitors may have superior financial, marketing, manufacturing, research and development and technological resources than we do", offering P.R.C. government support of its domestic semiconductor companies as the example. |
| Moat type | cost scale Part of the 10-K's cost/scale case applies to the whole industry, not to Amkor alone. It says packaging and test service providers "can typically use their assets to support a broad range of customers and multiple end markets, potentially generating more efficient use of their production assets and a more cost-effective solution", in contrast to IDMs running their own lines. The Amkor-specific support is its footprint, which it calls "a key differentiator", and its purchasing scale: "By leveraging our purchasing power and operational expertise, we look to secure favorable pricing and supply agreements for materials and equipment, further enhancing our competitive position." It adds: "We also negotiate worldwide pricing agreements with our major suppliers to take advantage of the scale of our operations." Against other OSATs the scale edge is limited, because Item 1A concedes Asian rivals "including companies with significantly greater processing capacity, financial resources". Multi-month customer qualification and long customer relationships add a secondary switching-cost element. IP is not the source: "Although our patents are an important element of our intellectual property strategy, we are not materially dependent on any one patent or any one technology." | switching costs The 10-K locates the durable advantage in an integrated stack and its third-party ecosystem, not in patents: it names 'a strong third-party software and accessories ecosystem' among the principal competitive factors and states the Company 'designs and develops nearly the entire solution for its products, including the hardware, operating system, numerous software applications and related services,' while explicitly disclaiming IP as the source -- 'No single intellectual property right is solely responsible for protecting the Company's products and services' and the Company 'relies primarily on the innovative skills, technical competence and marketing abilities of its personnel.' The remedies now in force confirm the diagnosis negatively: the same filing describes being required to permit alternative distribution and alternative payment processing in the EU and being barred from charging commission on certain linked-out purchases in the U.S. -- remedies aimed squarely at lowering the cost of leaving Apple's rails, which is what a switching-cost moat is. | cost scale The advantage the 20-F actually claims is unit economics from volume, not lock-in: specialization and "economies of scale by providing services to a large base of customers", high capacity utilization spreading "relatively high fixed costs", and equipment that lasts longer because of the breadth of the order book. Capital intensity reinforces it — the filing says "semiconductor businesses are capital intensive and require significant investment in expensive equipment manufactured by a limited number of vendors", with the equipment market itself "characterized by intense demand, limited supply, and long delivery cycles". |
| Leadership | co leader The FY2025 10-K opens: "Amkor is the world's largest U.S. headquartered outsourced semiconductor assembly and test service provider (“OSAT”) and is a global leader in outsourced semiconductor packaging and test services." It claims to be a global leader, not the leader, and its one superlative is limited to U.S.-headquartered providers. It names ASE Technology, JCET Group and Powertech Technology as rivals. It concedes Asian competitors "including companies with significantly greater processing capacity, financial resources". About the key competitive factors it lists, it says only "We believe we are competitive in these areas." | fast follower Apple leads on integration and margin rather than on units, and the filing says so: it 'has a minority market share in the global smartphone, personal computer, tablet and wearables markets,' while competitors have 'broad product lines, low-priced products, large installed bases of active devices, and large customer bases.' On the AI axis that defines this graph, Apple is following rather than leading -- it now licenses a rival's frontier models to power Siri (see the Apple Intelligence / Siri row and its citation) while pushing its own advantage down into silicon. | co leader The 20-F calls ASEH "a leading provider of semiconductor manufacturing services in assembly and testing" and "a market leader in SiP technologies from design to assembly with high-volume manufacturing", and says it has "established ourselves as a leader through the successful introduction of leading-edge advanced packaging solutions, which have played a pivotal role in bringing advanced ASIC and HBM products to the marketplace" — but the hedged "we believe we are among the leaders in such packaging processes and technologies", alongside named consolidating rivals (Jiangsu Changjiang Electronics Technology/STATS ChipPAC, Amkor/J-Devices, Tianshui Huatian Technology/Unisem) and TSMC's InFO, describes shared rather than sole leadership. |
| Pricing power | weak Item 1A of the FY2025 10-K says "Prices for packaging and test services have generally declined over time, and sometimes prices can change significantly in relatively short periods of time." It also says "We expect downward pressure on average selling prices for our packaging and test services to continue in the future, and this pressure may intensify during downturns in business." MD&A gross margin was 14.0% in 2025 against 14.8% in 2024 and 14.5% in 2023. The notes say the longer test-equipment depreciation life "reduced depreciation expense by approximately $59 million in 2024". Materials alone were 55.2% of 2025 net sales. The customer base is concentrated: the ten largest customers were 72% of 2025 net sales, with Apple at 29.8% and Qualcomm at 11.1%, and the filing flags "a reduction in orders or decrease in price from a significant customer" as a risk. | strong The 10-K's own gross-margin table: total gross margin percentage 44.1% (2023) to 46.2% (2024) to 46.9% (2025), with Services at 75.4% versus Products at 36.8%, and iPhone net sales rising 'due to higher net sales of Pro models' -- mix moving up, not down. Held against the filing's own hedge that 'gross margins will be subject to volatility and downward pressure,' the realised trend is the stronger evidence. | weak The 20-F states the industry has "a general trend toward declining prices for products and services of a given technology over time" and that ASEH's own "average selling prices of our packaging and testing services have experienced sharp declines" under "intense price competition". FY2025 consolidated gross margin was 17.7% (up from 16.3%), and management attributes the gain to "higher packaging and testing revenue mix and higher factory utilization" rather than price; the EMS half earned a 9.2% gross margin on raw-material costs equal to 78.7% of EMS revenue, and the five largest customers supplied 46.5% of 2025 operating revenues. |
| Summary | Amkor is a back-end contractor; the 10-K says "We provide turnkey packaging and test services including wafer bump, wafer probe, wafer back-grind, package design, packaging, burn-in, system level and final test and drop shipment services." It also says "Our customers include most of the world's largest semiconductor companies." Advanced Products (flip chip, memory and wafer-level packages) were 82.8% of its $6,708M in 2025 net sales. The durable part of its position is scale and a multi-country footprint, which the filing calls "a key differentiator", backed by multi-month customer qualification and customer relationships it dates back "over the last five decades". On Arizona, the filing says: "Construction began in the second half of 2025, and we believe that this investment will strengthen our ability to serve customers seeking to regionalize their supply chains and will enhance our participation in U.S. semiconductor initiatives." Price caps the moat. The 10-K says "We expect downward pressure on average selling prices for our packaging and test services to continue in the future, and this pressure may intensify during downturns in business." It also says foundries "substantially larger than us" have expanded their operations to include packaging and test services. | Apple's moat is usually asserted through the ecosystem; the FY2025 10-K neither quantifies nor claims retention, so the evidence has to be read elsewhere in the filing. Where it does show is mix and margin: Services reached $109.2B of $416.2B net sales (+14%) at a 75.4% gross margin against 36.8% on Products, so 26% of revenue delivered $82.3B of the $195.2B total gross margin, and iPhone grew 'due to higher net sales of Pro models.' That profit concentration is also the vulnerability the filing itself flags: Apple 'earns revenue from licensing arrangements with Google LLC and other companies to offer their search services on the Company's platforms,' arrangements 'currently subject to government investigations and legal proceedings' after Google was found to have violated U.S. antitrust laws on August 5, 2024 and the D.C. District Court ordered remedies on September 2, 2025 -- with the 10-K warning that a reversal on appeal could impose DOJ's proposed remedies 'prohibiting Google from offering the Company commercial terms for search distribution,' which 'could materially adversely affect the Company's ability to earn revenue from such licensing arrangements.' Apple never discloses the size of that payment in the filing -- the concentration is admitted but not measured. Alongside it, the App Store toll has already been reduced in both jurisdictions. What is not in dispute is the vertical integration: Apple designs the silicon and now the cellular modem, and uses 'custom components available from only one source.' Read together: a genuine, margin-visible switching-cost moat around an integrated stack, with its two most profitable layers under active legal reduction. | ASEH sells turnkey assembly and test at a scale most captive IDM lines cannot match: the 20-F says it is "involved in all stages of the semiconductor manufacturing process except circuit design and wafer fabrication", and leans on Taiwan, "currently the largest center for outsourced semiconductor manufacturing in the world", plus a "strategic alliance with TSMC", to sit next to the foundries its customers already use. The durable part is cost position from utilization, not customer capture — the filing concedes customers multi-source and that foundries are moving into advanced packaging from above. |
| Chain position | Back-end packaging and test step between wafer fabs and chip vendors. The 10-K says "the wafers that we receive from our customers are generally consigned to us", and Amkor serves IDMs, fabless companies, OEMs and contract foundries that outsource packaging and test. | Applications-layer name in the AI chain: the 10-K describes designing 'nearly the entire solution' and using custom components 'available from only one source,' making Apple a large, concentrated buyer of leading-edge silicon rather than a supplier of AI compute to anyone else. | Back-end contractor to the AI silicon chain: the 20-F ties its FOCoS, FOCoS-Bridge and 2.5D/3D lines to "ASICs and HBM for HPC, networking, server and AI/ML applications" and "AI accelerators for AI training", and warns that a slowdown in AI demand would leave "lower utilization rates for our specialized equipment". |
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| Long-horizon vote | +0.05 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.11 at weight 0.20 · swarm bullish Editorial prior, not backtested. | +0.05 at weight 0.20 · swarm neutral Editorial prior, not backtested. |