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.
| Advantest | MongoDB | Netflix | |
|---|---|---|---|
| Moat rating | wide A disclosed share that rose while margin expanded. The FY2025 Annual Securities Report and Business Report (84th term, filed 2026-06-26) lists as FY2025 progress: 'Further expanded our market share in the semiconductor tester (ATE) market (CY2024: 58%; CY2025: 65%)', earned on net sales of ¥1,128,610 million at an operating income to net sales ratio of 44.2%, 'an increase of 14.9 percentage points from the previous fiscal year'. The share is a company metric and the filing says so — 'the ratio of Advantest's semiconductor tester sales to the overall size of the semiconductor tester market', where 'The semiconductor tester market size is estimated independently by Advantest based on certain assumptions and available information'. The same filing names seven principal tester competitors (Teradyne, Inc., CCTech, Accotest, YC Corp., Cohu, Inc., UniTest Co., Ltd. and EXICON Ltd.), so this is a lead held against a named field rather than an empty one. | narrow The FY2026 10-K frames a 'rapidly evolving and highly competitive' database market where the principal rivals — 'legacy database providers and large cloud providers' — hold explicit advantages: 'longer operating histories, more established relationships … significantly greater financial, technical, marketing or other resources … broader global distribution,' and can offer competing products 'at a low cost or no cost.' A developer-mindshare and switching-cost position is defensible but not wide against that field. | narrow FY2025 10-K (Item 1, Competition; filed 2026-01-23) calls the entertainment-video market 'intensely competitive and subject to rapid change,' with rivals holding exclusive content rights, 'large content libraries, and significant financial, marketing and other resources' and low member switching friction (members 'can change their plans at any time'). The offsetting durable advantage is monetized scale: the Q2 2026 shareholder letter (2026-07-16) guides 2026 revenue to $51.0-$51.4B at a 31.5% operating margin for an audience 'approaching 1B people' — a content budget and margin structure no pure-play streaming rival matches. |
| Moat type | intangibles ip What management itself names as the source of the position is a proprietary platform. The July 29, 2026 Q1 FY2026 results briefing states: 'Our leading SoC Test platform, V93000, has been widely adopted across a broad range of customers in the increasingly complex AI semiconductor markets, where advanced packaging technologies including GPUs, ASICs, and CPUs are being adopted. It serves as a key foundation that underpins our competitive advantage.' The 84th-term report shows the spend behind it: R&D was approximately ¥71.4 billion in FY2024 and ¥78.1 billion in FY2025, 'The number of employees in its research and development division is approximately 30% of the Advantest workforce', and in the Test System Business Segment 'a large and ongoing investment in research and development is necessary in order to maintain market competitiveness'. Its stated IP mitigation is that 'Advantest strategically and proactively files patent applications during product development and prior to product shipment'. | switching costs A database is the system an application is built on: the 10-K states 'a database directly impacts an application's performance, scalability, flexibility and reliability,' and Atlas is 'our managed multi-cloud database-as-a-service' running the customer's live workloads — re-platforming a database is a rewrite, not a swap. | cost scale Content and technology spend is amortized across the industry's largest paid streaming membership base: the Q2 2026 shareholder letter (2026-07-16) reports members watched 97B+ hours in H1 2026 for an audience approaching 1B people, with Q2 operating margin of 33% — scale that lets Netflix outspend rivals on programming per subscriber dollar. A secondary intangibles layer sits on top: the FY2025 10-K (Item 1) says Netflix regards its copyrights, trademarks and the original content it produces as 'important to our success.' |
| Leadership | clear leader The 84th-term report discloses Advantest's tester-market share at 65% in CY2025, up from 58% in CY2024, and carries the same 65% among its disclosed management metrics against a target of '58% or more'; the filing defines it as Advantest's semiconductor tester sales over a market size 'estimated independently by Advantest based on certain assumptions and available information'. The July 29, 2026 briefing names the platform behind that share — V93000, 'widely adopted across a broad range of customers in the increasingly complex AI semiconductor markets'. Teradyne, Inc. heads the filing's list of principal tester competitors. | co leader The 10-K positions MongoDB as the leading document database by developer mindshare but names 'legacy database providers and large cloud providers' as better-resourced rivals across the broader database market — a category leader within a market it does not lead overall. | clear leader Nielsen's Media Distributor Gauge for May 2026 (published 2026-07-28): Netflix held 8.0% of total US TV watch-time, the largest of any subscription streamer (Amazon Prime Video 4.5%, Roku Channel 3.1%, Paramount 2.3%); YouTube — an ad-supported, largely user-generated platform — led all distributors at 13.8%. |
| Pricing power | strong Q1 FY2026 gross profit was ¥255,553 million on net sales of ¥367,473 million, and the July 29, 2026 briefing states the resulting figure itself: 'Gross margin reached 69.5%', with 'an operating margin of 51.7%'. Management attributes that level to 'a favorable sales mix and limited inventory valuation losses amid the robust demand environment', not to price, and guides FY2026 full-year gross margin to 66–67% and operating margin to 49.4% after incorporating 'the impact of higher component costs, particularly for memory-related components'. FY2025 closed at a 44.2% operating margin, up 14.9 points year on year, on sales up 44.7%. | moderate Owning the IP and the roadmap ('the determination of which features are included in our free or paid offerings') gives real list-price control, but the same filing flags competitors offering database products 'at a low cost or no cost basis,' which caps it. | strong Q2 2026 shareholder letter (2026-07-16): H1 2026 price changes 'in markets like the US, Mexico and Spain, have gone well with the impact consistent with prior price changes and our expectations,' and 2026 revenue growth of 13%-14% is guided as 'driven by growth in memberships and pricing' — repeated increases without guided membership damage. |
| Summary | Advantest sells the test step that certifies silicon before it ships, and its position there is disclosed rather than inferred: its own tester-market-share metric moved from 58% in CY2024 to 65% in CY2025 (84th-term Annual Securities Report), against a market size the filing says Advantest estimates itself. The lead is concentrated in SoC test — the July 29, 2026 briefing calls V93000 'our leading SoC Test platform' and 'a key foundation that underpins our competitive advantage' — and the customer base runs straight into the AI chain: NVIDIA International, Inc. was ¥228,273 million, or 20.2%, of FY2025 consolidated net sales, having been below the filing's 10% disclosure threshold the prior year, with Taiwan Semiconductor Manufacturing Co., Ltd. at ¥124,922 million, or 11.1%. Economics moved with it: FY2025 operating margin was 44.2%, up 14.9 points, and Q1 FY2026 gross margin reached 69.5%, which management attributes to 'a favorable sales mix and limited inventory valuation losses amid the robust demand environment' rather than to price. The counterweights sit in the same documents. The 84th-term report's customer-trust risk factor warns that if Advantest fails to meet expectations on ramp-up and post-sales service, 'the maintenance or expansion of Advantest's market share may be constrained'; it names separate competitor sets in test handlers (Hon. Precision, CCTech, Cohu, TechWing) and device interfaces (TSE, ISC, BeLINK) where no share is disclosed at all; and the July 29, 2026 briefing guides FY2026 full-year gross margin down to 66–67% having 'incorporated the impact of higher component costs, particularly for memory-related components, mainly in the second half of the fiscal year'. | MongoDB monetizes developer mindshare that began as open source: the 10-K notes 'we own the intellectual property of our offerings since we are the creators of the software,' which lets it run a 'proprietary software subscription business model' and control the roadmap. The durable asset is the document-model install base and Atlas's managed multi-cloud workloads, positioned for AI as 'the underlying database … capable of processing queries against rich and complex data structures.' The counterweight, in the filing's own words, is that the large cloud providers it depends on for Atlas hosting are also its best-resourced competitors. | Netflix's advantage is a self-reinforcing scale loop rather than lock-in: the largest paid streaming audience funds the largest content slate, which in turn wins what the 10-K calls 'moments of truth' against every other use of leisure time. The FY2025 10-K is candid that switching costs are low (members can change plans at any time) and that competition spans linear TV, rival streamers, user-generated platforms, gaming and piracy — so the moat is narrow, not wide. What sustains it now is monetization breadth on top of scale: per the Q2 2026 letter, repeated price increases keep landing 'consistent with prior changes and our expectations,' the ads business is on track to roughly double to ~$3B in 2026, live events drove six of the top 10 member sign-up days of the last five years on just over 5% of content spend, and GenAI workflows (used in roughly 300 titles in 2026) are lowering production cost. Nielsen's May 2026 Gauge places Netflix at 8.0% of total US TV time — the largest subscription streamer, though YouTube leads all distributors at 13.8% — which frames the real long-run contest: attention against free, user-generated video, not just against other paid streamers. |
| Chain position | Back-end capital equipment: Advantest's testers certify devices after fabrication, and the 84th-term report's FY2025 major-customer table puts NVIDIA International, Inc. at 20.2% and Taiwan Semiconductor Manufacturing Co., Ltd. at 11.1% of consolidated net sales, with overseas sales 97.8% of the total. | Layer-10 application-layer data platform — the operational database under AI and general software workloads. | Consumer-facing distributor at the end of the entertainment supply chain: the FY2025 10-K (Item 1) says revenues are 'primarily derived from monthly membership fees,' and Netflix competes two ways — downstream for viewers' leisure time and upstream 'against entertainment video providers and content producers in obtaining content,' both licensed and original; the ads tier adds a second monetization rail on the same distribution asset. |
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| Long-horizon vote | +0.42 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.13 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.24 at weight 0.20 · swarm neutral Editorial prior, not backtested. |