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.
| Kioxia Holdings | MediaTek | Corning | |
|---|---|---|---|
| Moat rating | narrow Kioxia's FY2025 Annual Securities Report (dated 2026-06-24) describes a real but bounded position. It records 'the limited number of major competitors in the flash memory business', and says its three manufacturing joint ventures with Sandisk let it 'make investments on a larger scale than if it were to invest alone and enjoy economies of scale in terms of capital expenditures and production efficiency'. Against that, the same Risk Factors section describes 'heavy global competition as advanced technologies are necessary for business execution', says 'in the flash memory market the Group's ability to decide prices is limited', that 'Some competitors possess technologies that the Group does not have, such as DRAM' and 'have greater financial strength than the Group', and records that the Group cut production from October 2022 to March 2024. Scale in a small field, not a barrier that protects Kioxia's returns through the cycle. | narrow Counterpoint's public quarterly AP-SoC table, published 8 September 2026, shows MediaTek first in all ten quarters it covers (Q1 2024 through Q2 2026), never below 31%, with the nearest rival never above 30% -- a sustained position, not one good quarter. What the same table does not show is a widening one: the share oscillates inside a 31% to 41% band, the Q1 readings step down 41% (2024), 38% (2025), 33% (2026), and the 31% of Q2 2026 matches the lows already set in Q4 2024 and Q4 2025 rather than breaking them; Q2-on-Q2 the series runs 34%, 36%, 31%. Counterpoint also records MediaTek's shipments down more than 30% year-over-year in the quarter, the mainstream and entry tiers hit by the memory shortage and the premium tier by a 'slowdown in sales of Dimensity 9000 series powered devices.' MediaTek's own 2Q26 remarks show the gross line holding and the operating line not: gross margin 46.2%, down only 0.1 percentage points sequentially and guided at 46% plus or minus 1.5 for Q3, while operating income fell 22.2% year-over-year on revenue up 1.2% as operating expenses rose to NT$47.4 billion from NT$44.5 billion. A first place held for ten quarters without extending it, and earning less on it, is defensible rather than compounding. | narrow Corning's FY2025 Form 10-K (filed 12 February 2026) documents real protection in two places and hedges everywhere else. In Display it states flatly that 'We are the largest worldwide producer of glass substrates for flat panel displays' and credits a 'proprietary fusion manufacturing process, which we invented and is the cornerstone of our technology leadership in the display glass industry'; in Optical Communications it says 'We maintain a leadership position in the segment's principal product groups, which include carrier and enterprise networks'. But the Competition section opens on a company-wide concession - 'Some of these competitors are larger than we are, and some have broader product lines' - and closes that opening paragraph with 'There is no assurance that we will be able to maintain or improve our market position or competitive advantage', a hedge set over the five per-segment paragraphs that follow, the last of which has Life Sciences facing 'competition from large distributors that have pursued backward integration or introduced private label products'. In optical it expects 'industry consolidation, pricing pressure and competition for the innovation of new products' to persist. The risk factors add that Optical Communications and Display 'generate a significant amount of the Company's profits and cash flow' and are 'subject to pricing pressure', while the customer base is concentrated enough that customers 'may possess substantial leverage in negotiating contractual obligations' - the filing's own table puts two combined end customers at 28% of 2025 Optical Communications segment net sales, three at 59% of Display, two at 43% of Specialty Materials and three at 61% of Automotive. Protection that is genuine but confined to part of the portfolio, held against named larger rivals and customers with that much leverage, is narrow rather than wide. |
| Moat type | cost scale The advantage the company itself names is scale and capital efficiency. The Annual Securities Report says the Sandisk joint ventures, which procure the production equipment installed at Kioxia's Yokkaichi and Kitakami plants and 'sell 50% of their products to the Group and 50% to the Sandisk Group', let it 'enjoy economies of scale in terms of capital expenditures and production efficiency'. At its 2026 Investor Day (2026-06-02) management said that 'by leveraging our world-leading economies of scale, we have maintained a lower cost per gigabyte than the industry average', on a slide that cites the TechInsights NAND Market Report Q2 2026 as its source. The filing describes its technology work (layer stacking for BiCS FLASH, the move to QLC) and names 'a decline in competitiveness in production efficiency per gigabyte' as a risk if it falls behind. It does not present that technology as protected IP that rivals cannot match. | intangibles ip MediaTek manufactures nothing itself -- its 2Q26 remarks describe 'deep design-technology co-optimization (DTCO) with TSMC' and close collaboration with advanced-packaging partners -- so the durable asset cannot be plant scale, and the remarks do not claim customer lock-in either. They locate it in a reusable design library: 'Building on our industry-leading IP portfolio, we offer best-in-class, pre-validated subsystems solutions for memory, I/O, and connectivity' -- which, the company says, 'largely reduces design complexity and shortens time to market for our data center customers'. The same remarks itemise 448G SerDes with a Co-Package Copper system solution, CPO development on TSMC's COUPE platform, and an end-to-end 3.5D platform with 'best-in-class 3.5D IP, packaging, and design flows,' and say design wins come 'backed by our industry-leading IPs, deep ecosystem partnerships, and proven execution capabilities'. The spending behind that library shows in the cost line: operating expenses of NT$47.4 billion in the quarter against NT$44.5 billion a year earlier, with the Q3 operating expense ratio guided at 31% plus or minus 2 points. It is the same library MediaTek re-amortises across mobile, edge and now data-center ASIC. | intangibles ip What the filing keeps pointing at is invented process technology and the patent estate fencing it, not a network and not raw size. The FY2025 10-K repeats 'Patent protection is important to the segment's operations' word for word in four of its five reportable segments - Optical Communications, Specialty Materials, Automotive and Life Sciences - and gives Display a stronger variant, 'Patent protection and proprietary trade secrets are important to the Display segment's operations'. It reports about 11,375 unexpired patents owned worldwide at the end of 2025 (about 4,015 of them U.S.), about 370 U.S. and over 970 non-U.S. grants during 2025 and about 5,650 applications in process, and states 'We have historically enforced, and will continue to enforce, our intellectual property rights.' The single clearest asset is a process rather than a product - the fusion draw Corning says it invented and calls the cornerstone of its display-glass technology leadership, guarded in Display by 'proprietary trade secrets'. Even the cost advantage the filing claims in optical is sourced back to the same place: 'Our large-scale manufacturing experience, fiber process, technology leadership and intellectual property provide cost advantages relative to several of our competitors' - scale is described there as a consequence of the process, not the origin of the advantage, which is why this is an IP-and-know-how moat rather than a cost-scale one. The estate is broad rather than cliff-edged: 'no one patent is considered material to any segment', and about 740 worldwide patents, 6.5% of the portfolio, expire between 2026 and 2028. |
| Leadership | at parity TrendForce's 2Q26 NAND Flash ranking (2026-08-18) puts Kioxia fourth with revenue of about $10.72 billion. Its 13.6% share 'edged down', and it sits behind Samsung (29.3%), SK hynix Group and Micron, which moved up to third. TrendForce's 2Q26 enterprise SSD ranking (2026-09-01) also places it fourth, at $4.64 billion. On technology it is keeping pace: it began sampling the 332-layer 10th-generation BiCS FLASH on 2026-07-03, per its press release. The Annual Securities Report concedes that some competitors 'possess technologies that the Group does not have, such as DRAM' and 'have greater financial strength than the Group'. Kioxia is in the middle of a small group of peers. | co leader Counterpoint has MediaTek ahead of every rival in all ten quarters of its public table -- 31% against Qualcomm's 23% and Apple's 19% in Q2 2026 -- but that count covers smartphone application processors only, and MediaTek's 2Q26 remarks put mobile phone at 41% of group revenue, no longer its largest business. Smart Edge Platforms is larger at 53%, and while the remarks claim 'continued market share gains across connectivity, computing and automotive products', no independent count of those positions appears in the sources used here. In data center MediaTek holds nothing yet: production of its first AI accelerator ASIC is scheduled for the fourth quarter of 2026, and 15% to 20% is a 2027 target raised from 10% to 15% a quarter earlier. Inside its core market the flagship tier is a stated plan rather than a claimed position -- a 2nm SoC launching in the third quarter and, 'together with ongoing engagements with global players, we will increase our presence continuously in the flagship smartphone market in 2027' -- while Counterpoint records MediaTek's premium-tier shipments declining on a 'slowdown in sales of Dimensity 9000 series powered devices.' | clear leader The FY2025 10-K makes exactly one unqualified rank claim and it is Display: 'We are the largest worldwide producer of glass substrates for flat panel displays', with only AGC Inc. and Nippon Electric Glass Co., Ltd. named as principal competitors. The second-strongest claim is Optical Communications' - 'We maintain a leadership position in the segment's principal product groups, which include carrier and enterprise networks' - asserted against Amphenol, Fujikura and its subsidiary America Fujikura Ltd., Sumitomo and Prysmian Group S.p.A. Those two lines carry the company: Optical Communications was 38% of total segment net sales in 2025 and Display 23%, and the segment table credits them with $1,048 million and $993 million respectively of the $2,747 million of reportable-segment net income. The band is a company-level judgment weighted to them, and it does not extend across the portfolio - Automotive claims only 'a strong market position', and Life Sciences describes itself as 'a leading developer, manufacturer and global supplier of laboratory products for over 110 years' while competing against the much larger Thermo Fisher Scientific Inc. and Danaher Corporation on $972 million of 2025 sales. |
| Pricing power | weak The Annual Securities Report states that 'in the flash memory market the Group's ability to decide prices is limited, and in the medium- to long-term selling prices on a bit basis may decline at a similar pace as in the past'. Current margins follow the market. The first-quarter FY2026 results attribute the revenue jump primarily to 'a significant increase in average selling prices (ASPs) resulting from strong demand from data center customers focusing on generative AI'. Gross profit was ¥1,380,066 million on revenue of ¥1,767,117 million, against ¥71,179 million on ¥342,799 million a year earlier. In the 2026 Investor Day Q&A management said it believes 'market pricing will continue to reflect those supply-demand conditions'. | moderate The 2Q26 remarks describe price as cost pass-through rather than capture: 'As rising costs across the supply chain have become an industry-wide reality, we are taking pricing actions to ensure these increases are appropriately reflected in our product pricing', with the full-year aim, 'through our disciplined pricing strategy', to 'deliver our full year gross margin within the current quarter guidance range' -- holding a band, not widening it. The realised figures show that defence working: gross margin 46.2%, down 0.1 percentage points sequentially, with Q3 guided at 46% plus or minus 1.5 points. The 2.9-point year-over-year decline is not an erosion rate; the company states it 'was mainly due to a one-time benefit in the year-ago quarter.' Holding a mid-40s gross margin through a market the company expects to decline 'by about 15% in units this year' is genuine discipline, but passing rising costs through to defend a guided band is not the ability to price above it. | moderate The FY2025 10-K shows prices being raised and sticking, and in the same breath shows what caps them. The results table puts gross margin at 36% of net sales in 2025 against 33% in 2024, and MD&A attributes the three-point gain to 'higher volume and the impact of actions taken by management to improve profitability, including raising prices, reducing costs and increasing productivity.' Display is the cleanest case: after resetting its core rate from 107 to 120 Japanese yen to the dollar, 'we implemented pricing actions in the second half of 2024', and 'The effects of the price increases on slightly higher volumes in 2025, compared to the prior period, substantially offset the impact of resetting the core rate.' The ceiling is disclosed in the same document: Optical Communications and Display are 'subject to pricing pressure', concentrated customers 'may possess substantial leverage in negotiating contractual obligations', and a risk factor warns that 'Increasing our prices to our customers may cause certain of our customers to push out, cancel or refrain from purchasing our products'. Price that holds on the back of rising volume, against customers that concentrated, is moderate rather than strong. |
| Summary | Kioxia calls itself 'a specialized flash memory manufacturer'. It makes BiCS FLASH 3D NAND at Yokkaichi and Kitakami in Japan through three manufacturing joint ventures with Sandisk, whose output is sold 50% to Kioxia and 50% to Sandisk. FY2025 (year to March 2026) revenue was ¥2,337.6bn: SSD & Storage ¥1,362.6bn, Smart Devices ¥760.0bn and Other ¥215.0bn, with the Apple group alone at 20.4% of sales. Its moat is scale in a concentrated industry. TrendForce ranks it fourth in 2Q26 NAND revenue with a 13.6% share, and in August 2026 the partners announced anticipated investments in Japan of over $31 billion through 2032, contingent on government support. The same filing sets out the limits: limited ability to set prices; rivals that also make DRAM and have more financial strength; China's government-supported push for domestic semiconductor production; and a joint-venture agreement effective until 2034, with no decision yet on whether it continues after that. First-quarter FY2026 gross profit was ¥1,380,066 million on revenue of ¥1,767,117 million, against ¥71,179 million on ¥342,799 million a year earlier. The company attributes the jump primarily to a significant increase in average selling prices. | MediaTek is the largest supplier of smartphone application processors by units and has been for as long as Counterpoint's public quarterly table runs. Across all ten quarters it covers, Q1 2024 through Q2 2026, MediaTek is first every time and never below 31%, while the nearest rival never clears 30%; in Q2 2026 it holds 31% against Qualcomm's 23%, Apple's 19%, UNISOC's 13%, Samsung's 9% and HiSilicon's 5%. That is a real, independently counted position, and it is the only part of MediaTek's business for which such a count exists in the sources used here. The same table is the clearest evidence that the position is being defended rather than extended. MediaTek's share moves inside a 31% to 41% band across the ten quarters, and the top of that band has come down -- 41% in Q1 2024, 38% in Q1 2025, 33% in Q1 2026 -- while the 31% of Q2 2026 matches the lows already set in Q4 2024 and Q4 2025 rather than breaking them; measured like for like against the same quarter a year earlier the series runs 34%, 36%, 31%. Counterpoint records MediaTek's shipments falling more than 30% year-over-year in the quarter -- hit in the mainstream and entry tiers by the memory shortage, and in the premium tier by a slowdown in Dimensity 9000 series devices -- while Samsung's Exynos climbed to 9% on Galaxy S26 base variants and mid-tier A-series wins. MediaTek's own 2Q26 remarks show the gross line holding and the operating line not: gross margin of 46.2%, down 0.1 percentage points sequentially and guided at 46% plus or minus 1.5 for the third quarter, against operating income down 22.2% year-over-year on revenue up 1.2%, with operating expenses of NT$47.4 billion against NT$44.5 billion a year earlier. Unit leadership held while the return on it did not. What MediaTek re-uses is design IP. It manufactures nothing itself -- the remarks describe deep design-technology co-optimization with TSMC and close work with advanced-packaging partners -- and they locate the durable asset in a pre-validated library of memory, I/O and connectivity subsystems, 448G SerDes with a Co-Package Copper system solution, CPO development on TSMC's COUPE platform, and an end-to-end 3.5D platform. The spending behind that library is visible in the cost line: operating expenses of NT$47.4 billion in the quarter against NT$44.5 billion a year earlier, with the Q3 operating expense ratio guided at 31% plus or minus 2 points against a gross margin guided at 46% plus or minus 1.5 -- an operating cost base running near a third of revenue. That library is now pointed at two adjacencies. Smart Edge Platforms -- connectivity, computing, automotive and TV SoCs -- is now the larger business, at 53% of revenue in Q2 against mobile's 41%, and grew 26% year-over-year while mobile fell 20%. And the company says it has built its first AI accelerator ASIC for a major US cloud customer, with production scheduled for the fourth quarter of 2026. One adjacency is a target and one is a contribution, and this profile treats them as exactly that. The data center share figure of 15% to 20% is a 2027 target against a served market MediaTek itself sizes at US$80 billion, raised from 10% to 15% only one quarter earlier, and production of the first ASIC was still scheduled for the fourth quarter at the date of the remarks. The RTX Spark AI PC work is corroborated by NVIDIA's own announcement, which credits MediaTek with collaborating on the custom CPU design and contributing to its power efficiency, performance and connectivity -- but the superchip, its Grace CPU, its NVLink-C2C interconnect and its software stack are NVIDIA's, and the systems ship from PC makers, so what MediaTek holds is a design contribution rather than a franchise with a share to count. The claimed share gains in connectivity, computing and automotive carry no number and no third-party count. The honest reading is a company with one durable, independently verified franchise it is holding rather than extending, funding a credible but still unproven move into higher-value silicon on the strength of its IP portfolio. | Corning is a materials company whose defence is a set of manufacturing processes it invented and then papered over with patents, and the FY2025 10-K is unusually explicit about where that defence holds and where it does not. It holds in Display, the one place the filing makes an outright rank claim - 'We are the largest worldwide producer of glass substrates for flat panel displays' - against only two named principal competitors, AGC Inc. and Nippon Electric Glass. The stated reason is process: a fusion process Corning invented, which it says 'is scalable and we believe it is the most cost-effective process for producing large size substrates', protected by patents and 'proprietary trade secrets'. It holds more loosely in Optical Communications, where the company claims 'a leadership position' and grounds it in 'large-scale manufacturing experience, fiber process, technology leadership and intellectual property', with 4,121 worldwide patents in that segment alone - but names Amphenol, Fujikura and America Fujikura, Sumitomo and Prysmian Group as principal competitors and says the landscape's 'industry consolidation, pricing pressure and competition for the innovation of new products' are 'likely to persist'. Those two lines carry the company: the filing puts Optical Communications at 38% of total segment net sales in 2025 and Display at 23%, and the segment table gives them $1,048 million and $993 million respectively of the $2,747 million of reportable-segment net income. Outside them the language weakens fast: Automotive claims 'a strong market position' against a single undivided list - 'Our principal competitors include NGK Insulators, Ltd., Ibiden Co., Ltd., AGC Inc. and LENS.'; Specialty Materials rests on capabilities and 'Brand recognition and loyalty, through well-known trademarks' against Schott, AGC, Nippon Electric Glass, Heraeus and JENOPTIK; and Life Sciences, at 6% of segment net sales and $61 million of segment net income on $972 million of sales, competes with Thermo Fisher Scientific, Danaher, Avantor and others while also facing 'competition from large distributors that have pursued backward integration or introduced private label products'. The demand side is currently the strongest part of the story rather than the moat: 2025 optical segment net sales rose 35% to $6,274 million, which the 10-K attributes to 'continued growth in our Enterprise business driven by strong demand for our Generative AI products, and in our Carrier business, driven by demand for datacenter interconnect products and fiber-to-the-home products'. That is a customer capex wave - the risk factors name 'fluctuations in telecommunication and hyperscale data center capital spending' as a risk to the very same business - landing on segments the company itself says are subject to pricing pressure, which is the honest reason this profile stops at narrow: Corning has a defended process franchise in glass and a strong but contested one in fiber, wrapped in segments where the filing claims no structural barrier at all. |
| Chain position | Upstream NAND flash and SSD supplier. The filing says much of its revenue 'depends on a limited number of customers and industries, such as major smartphone manufacturers and large IT companies, including hyperscalers that require SSDs'. The Apple group was 20.4% of FY2025 sales. | A fabless designer sitting between its customers and the TSMC-centred manufacturing chain. The 2Q26 remarks describe 'deep design-technology co-optimization (DTCO) with TSMC' and close work with advanced-packaging partners to build 'high-performance ASICs across a broad range of very-large chip sizes using CoWoS and EMIB-T technologies' at nodes down to 2nm, and say MediaTek creates 'significant value beyond semiconductor by orchestrating other key components throughout the supply chain such as memory and substrate' -- a coordinator role as much as a design one. | Corning sits a layer beneath the AI build-out, supplying the glass and fiber rather than the compute. The FY2025 10-K describes 'optical fiber, cable and connectivity solutions for advanced communications networks, such as fiber to the home and data centers, enabling artificial intelligence', and says 'the rapid acceleration of artificial intelligence ("AI") is driving strong demand for fiber and connectivity products inside and between data centers', citing purpose-built parts such as the SMF-28e Contour fiber, 'a 40% smaller fiber', and the Contour Flow Cable 'which can fit double the fiber into the same cable diameter'. It also sells into chipmaking, through HPFS Fused Silica, ULE Ultra-Low Expansion Glass and the EXTREME ULE Glass introduced in 2024 to 'support chip manufacturers in meeting the rapidly growing demand for advanced and intelligent technologies'. The exposure is already in the numbers: Optical Communications net sales rose 35% to $6,274 million in 2025, which the filing attributes first to 'continued growth in our Enterprise business driven by strong demand for our Generative AI products'. |
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| Long-horizon vote | -0.01 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.13 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.20 at weight 0.20 · swarm neutral Editorial prior, not backtested. |