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.
| Digital Realty Trust | ASML | Pfizer | |
|---|---|---|---|
| Moat rating | narrow The FY2025 10-K's own competitive record cuts both ways. Item 1 says a "high-quality, highly interconnected global portfolio such as ours could not be easily replicated today on a cost-competitive basis," yet Item 1A concedes that competitors have "significantly greater financial, marketing and other resources and more ready access to capital" and that as rivals keep developing space, "rental rates may be reduced or we may face delays in leasing." A durable advantage that its own filing says new supply can price against is bounded, not unassailable. | wide ASML's FY2025 20-F states it "is currently the world's only manufacturer of EUV lithography systems" — an effective monopoly on the extreme-ultraviolet tools required to pattern leading-edge logic and memory chips. | eroding The FY2025 10-K publishes the expiry schedule of its own protection. The Patents table dates the basic U.S. product patent on Eliquis ($7,961 million of 2025 revenue) to 2027, the Prevnar family's Prevnar 13 ($6,494 million for the family) to 2026, the Vyndaqel family ($6,380 million) to 2026 with a 2028 extension only pending, Ibrance ($4,122 million) to 2027, Xtandi ($2,194 million) to 2027 and Xeljanz ($1,087 million) to 2026 - against Total revenues of $62,579 million. The filing then states it anticipates 'a significant reduction of revenue from patent-based or regulatory exclusivity expiries in 2026 through 2030 as several of our in-line products experience these expirations, with the rate of the reduction of revenues from patent-based or regulatory exclusivity expiries expected to significantly accelerate over the next few years', and puts the 2026 instalment at $1.5 billion. A protection whose end dates the issuer tabulates product by product, and whose revenue effect it forecasts as accelerating, is being consumed on a clock it has already disclosed. |
| Moat type | network effects Item 1 attributes the hard-to-replicate part of the portfolio to connectivity rather than to real estate: "the network density, interconnection infrastructure and connectivity-centric customers in certain of our data centers have led to the organic formation of densely connected data communities that are difficult for competitors to replicate." That community sits on over 232,000 cross connects in over 55 metros, so each network and cloud that lands makes the same building worth more to the next tenant. | intangibles ip The durable advantage rests on decades of proprietary technology and IP — the 20-F describes ASML's April 2025 1,000-watt EUV light source as "built on 25 years of engineering advancements" — reinforced by an exclusive arrangement with Carl Zeiss SMT as its "sole supplier" of the critical optics no rival can source. | intangibles ip The filing locates the protection in the patent estate, not anywhere else. The Patents and Other Intellectual Property Rights section tabulates 'the patent rights we consider most significant in relation to our business as a whole, together with the year in which the basic product patent expires', and states that once protection is lost 'we typically lose market exclusivity on these products, and generic and biosimilar pharmaceutical manufacturers generally produce identical or highly similar products and sell them for a lower price.' The Competition section names patents as the thing rivals attack: 'several of our competitors operate without large R&D expenses and make a regular practice of challenging our product patents before their expiration', and 'Generic pharmaceutical manufacturers pose one of the biggest competitive challenges to our branded small molecule products because they can market a competing version of our product after the expiration or loss of our patent protection.' No network, switching cost or cost-curve advantage is claimed anywhere in the section. |
| Leadership | co leader Item 1 claims the title of "the largest global provider of cloud- and carrier-neutral data center, colocation and interconnection solutions," but the Competition section names Equinix and NTT as operators of properties "similar to ours in some of the same metropolitan areas," plus Global Switch and regional operators abroad — a shared top tier on the company's own telling, not a solitary one. | clear leader Effectively 100% of the EUV market as the world's only EUV system maker; in the older DUV segment it "compete[s] primarily with Canon and Nikon" yet remains the leading supplier. | co leader The 2026 Pharma 50 (Drug Discovery & Development, published 31 March 2026, ranking pharmaceutical revenue only) places Pfizer third at $62.58 billion of FY2025 revenue inside a five-company band that runs from Johnson & Johnson's Innovative Medicine at $60.40 billion to Eli Lilly's $65.18 billion, with Merck & Co. at $65.01 billion and AbbVie at $61.16 billion in between - scale-equal to its nearest peers rather than ahead of them. The same piece attributes the top slot to Lilly's tirzepatide franchise, which it puts at $36.5 billion combined and says passed Keytruda as the world's best-selling drug; Pfizer's 10-K names no comparable single franchise, discloses no market-share position for any product, and concedes in Item 1A that 'some of our competitors may have competitive, technical or other advantages over us' and that it faces 'an increasing number of potential competitors worldwide, including from China, that have expanded R&D capabilities.' |
| Pricing power | strong FY2025 renewals signed re-priced upward in every bucket — +27.0% on greater-than-1 MW space ($146 to $186 per square foot), +4.6% on 0-1 MW ($268 to $280) and +43.0% on other ($49 to $71) — and MD&A expects average aggregate rental rates on 2026 renewals to be positive against the rates currently paid for the same space "on a GAAP basis and on a cash basis." On costs, the filing says utilities expense "is our largest expense category" and that "the vast majority of the expense is passed directly through to our customers," which it credits with significantly mitigating exposure to power-cost increases rather than removing it. The cap: Item 1A warns competitor development could still force rates down. | strong FY2025 gross margin of 52.8%, up 1.5 percentage points year over year, with management guiding toward 56-60% by 2030 — consistent with monopoly pricing power on EUV tools. | weak Price is the lever the filing shows moving against it. CMS selected Eliquis - which the 10-K says 'accounted for 13% of Total revenues in 2025' - for the Medicare Drug Price Negotiation Program, and 'its government-set Maximum Fair Price became effective January 1, 2026', with Ibrance and Xtandi following in 2027 and Xeljanz in 2028. In September 2025 Pfizer 'voluntarily agreed' with the U.S. administration to make certain U.S. prices 'more comparable to those in other developed countries' and to sell through the TrumpRx.gov platform 'at significant discounts to current retail prices'. Gross-to-net product revenue deductions rose to $36,374 million in 2025 from $30,048 million in 2023 while Total revenues fell to $62,579 million, and the IRA Medicare Part D Redesign alone 'negatively impacted our 2025 revenues by approximately $1 billion'. Lower U.S. net price is named as a drag on Vyndaqel, Ibrance, Xeljanz, Nurtec ODT and Lorbrena; every 2025 growth line the filing explains is attributed to demand, patient share or launch uptake, none to price. Cost of sales at 25.7% of revenues shows the manufactured margin is intact - what is not intact is the ability to set the price. |
| Summary | Digital Realty rents space, power and connectivity rather than compute: at 2025 year-end its portfolio held 310 data centers and roughly 57.6 million rentable square feet across more than 55 metros in over 30 countries, about 84.7% leased, serving more than 5,000 customers. Two different businesses sit inside that footprint. The greater-than-1 MW wholesale side is a capital-and-power race — 769 MW of projects underway with 64% pre-leased, and land that "could accommodate over 3,500 megawatts of additional data center capacity" — where the 10-K names Equinix, NTT, Global Switch and "various private operators" as rivals and warns that added supply can push rents down. The colocation and interconnection side is the defended half: over 232,000 cross connects and the "densely connected data communities" Item 1 says competitors cannot easily replicate, reinforced by contracts the filing describes as generally running 5-10+ years on large deployments and by improvements "installed at our customers' expense." FY2025 leasing supports that read — renewals signed re-priced +27.0% on greater-than-1 MW space and +4.6% on 0-1 MW — while customer concentration is the offsetting exposure, with the largest customer at roughly 11.7% of annualized recurring revenue. | ASML is the sole producer of EUV lithography systems, the only tools able to pattern the most advanced logic and memory nodes, with a roadmap "intended to drive affordable scaling to 2030 and beyond" and a High-NA EUV (TWINSCAN EXE) platform on which customers "had run more than 400,000 wafers" by end-2025. That dominance is protected by 25 years of accumulated engineering IP and an exclusive lock on Carl Zeiss SMT optics that competitors cannot replicate. | Two clocks run in opposite directions inside the same company. The revenue base is near-dated: Eliquis, the Prevnar family, the Vyndaqel family, Ibrance, Xtandi and Xeljanz all carry U.S. basic product patents expiring 2026 or 2027 in the 10-K's own table, and the filing warns the resulting revenue loss will 'significantly accelerate over the next few years'. The replacement book is later-dated - Padcev and Lorbrena to 2033, Nurtec ODT and Litfulo to 2034, Prevnar 20 to 2035, Abrysvo, Cibinqo and Elrexfio to 2036, Comirnaty and Paxlovid to 2041 - but in 2025 it was still much smaller, and the two products with the longest patent runway are the two the filing says are shrinking fastest (Comirnaty down 20% and Paxlovid down 59% operationally). The 10-K's answer is purchased pipeline rather than defended position: it cites the Seagen and Metsera acquisitions as 'significant investments in obesity and oncology, respectively, which are extremely competitive therapeutic areas', while R&D expense itself fell 4% to $10,437 million. Excluding Comirnaty and Paxlovid the remaining business grew 6% operationally in 2025, which is the honest measure of what is being rebuilt underneath the expiries. A third pressure sits on top of the patent clock and is independent of it: government price-setting now reaches the largest product in the book. |
| Chain position | Landlord to the AI stack — sells the space, power and interconnection that cloud, network and enterprise tenants run compute in (Oracle, IBM, Meta Platforms, AT&T, Comcast and Lumen are among the customers named in Item 1), with roughly 2.9 GW of total in-place IT capacity. | Upstream chokepoint of the AI chip supply chain: every leading-edge logic/DRAM wafer for AI accelerators is patterned on ASML EUV tools, making it the single indispensable equipment supplier to TSMC, Samsung and Intel. | Demand side of the AI chain, not a supplier into it. The 10-K lists 'Scale AI across our business' as one of four 2026 key priorities and describes 'expanding automation, data-driven decision making, and enterprise AI solutions', crediting 'enhanced digital enablement, including automation and AI' for part of the savings in its cost-realignment and R&D-simplification programs. It describes no AI model, tool or platform that Pfizer sells. |
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| Long-horizon vote | +0.17 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.42 at weight 0.20 · swarm bullish Editorial prior, not backtested. | -0.17 at weight 0.20 · swarm bearish Editorial prior, not backtested. |