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.
| MaxLinear | Digital Realty Trust | Vanguard International Semiconductor | |
|---|---|---|---|
| Moat rating | 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 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. | none VIS is profitable and is raising prices, but the cited evidence shows a tight market, not a durable edge. Its 2025 annual report (2026-05-13) puts 2025 gross margin at 28.1%, with revenue up 10% and net income up 12%. In the same year PSMC, a Taiwanese peer, reported a gross loss (its 2025 annual report). VIS's Q2 2026 gross margin was 32.3% and its operating margin 20.4%. Blended ASP rose 3% QoQ, and guidance calls for another 2% to 4% in Q3 (management report, 2026-08-04). TrendForce (2026-01-27, citing Commercial Times) calls VIS 'widely viewed as a key bellwether' among mature-node foundries, with utilization 'near full since the fourth quarter of last year'. The rating is none, not narrow. VIS's global share was 0.9% in Gartner's 2025 ranking, as reproduced in its annual report. The same report concedes that capacity expansion by Chinese peers 'has created price competition in power semiconductors', its core segment, and that customers in China 'continue to exert pricing pressure'. The only evidence of lock-in is the company's own description. |
| Moat type | 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. | 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. | none No moat source is independently evidenced. Switching costs rest on the company's own account. The 2025 annual report says VIS focuses on 'specialty processes and customized technologies to avoid falling into price competition for homogeneous products'. It says its 'customized discrete devices and high-voltage processes contribute to deepening collaborative relationships with customers', and it plans to sign 'medium- to long-term contracts to stabilize capacity-utilization rates'. Customers are prepaying under those agreements: the cash-flow page of the 2Q26 investor-conference presentation shows 'Contract liabilities from LTA' of NT$5,974 million in 1Q26 and NT$1,710 million in 2Q26. Prepaying to reserve capacity while utilization is near full shows demand for scarce capacity, not that customers would find it costly to leave. Independent evidence points the other way. TrendForce (2026-05-07) reports that as Taiwanese foundries shift capacity and raise prices, customers in HV processes and CIS applications are 'increasingly turning to Chinese foundries for more stable pricing and capacity availability'. |
| Leadership | fast follower In its fastest-growing line MaxLinear is a second source. Deep Fundamental’s September 27, 2024 deep dive (https://deepfundamental.substack.com/p/deep-dive-optical-module-market) says “Marvell ($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 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. | at parity VIS sits in a cluster of similar-sized specialty foundries. In Gartner's 2025 foundry ranking, as reproduced in VIS's 2025 annual report, VIS is ninth with US$1,556 million and a 0.9% share, next to Nexchip (US$1,579 million, eighth). TrendForce ranks it ninth in 1Q26 with a 0.8% share and eighth in 2Q26 with $451 million, $9 million behind seventh-placed Tower. No independent share was found for power-management foundry, its core segment. The annual report's statement that VIS 'has become the preferred partner' for U.S. customers seeking capacity outside China is the company's own claim. |
| Pricing power | 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. | 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. | moderate VIS is passing on increases, but within limits. Q2 2026 blended ASP rose 3% QoQ, gross margin rose to 32.3% from 28.0% a year earlier, and Q3 guidance calls for ASP up 2% to 4% (management report, 2026-08-04). TrendForce (2025-12-25, citing chinastarmarket.cn) reports that VIS notified customers of increases of around 10%, in an article on BCD price hikes. TrendForce (2026-01-27) estimated VIS hikes of about 4% to 8% from Q1. The limits: the annual report concedes Chinese pricing pressure in power semiconductors. TrendForce (2026-04-03) expects utilization 'to diverge among foundries, making broad-based price increases unlikely'. |
| Summary | 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. | 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. | Vanguard International Semiconductor (VIS) is a Taiwanese specialty foundry and TSMC affiliate. It runs 8-inch fabs in Taiwan and Singapore on nodes from 0.5 microns to 0.11 microns. Power management made up 77% of wafer revenue in Q2 2026, large display drivers 12% and small display drivers 7%, per the Q2 2026 management report. Q2 2026 revenue was NT$14,245 million, up 13.7% QoQ and 21.8% YoY, on shipments of 713 thousand 8-inch wafers. TrendForce (2026-01-27) estimates monthly capacity at roughly 280,000 to 290,000 wafers, with about 130,000 to 140,000 allocated to power devices. TrendForce's 2Q26 ranking (2026-09-09) credits VIS's growth to 'advance procurement and rising orders for AI peripheral ICs and smartphone PMIC/power products'. The mix is moving toward power: large display drivers fell from 18% of wafer revenue in Q2 2025 to 12% in Q2 2026. VIS is building its first 12-inch fab in Singapore through VSMC, a joint venture with NXP. TrendForce (2026-05-07) describes VSMC's capacity as 'supported by partial process technology licensing from TSMC' and not yet online. The verdict is no moat. VIS is a profitable specialty foundry benefiting from tight 8-inch power capacity, but its lock-in rests on its own description, its global share is small, and Chinese foundries compete on price in power and display-driver wafers. |
| Chain position | 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. | 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 8-inch specialty foundry for power-management, power-device and display-driver IC companies; power management was 77% of Q2 2026 wafer revenue. |
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| Long-horizon vote | +0.01 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.17 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.01 at weight 0.20 · swarm neutral Editorial prior, not backtested. |