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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.

comparing NVIDIA×Axcelis Technologies×Cloudflare× maximum of 3 — remove one to swap
NVIDIA NVDA ai moat: latest change 2026-02-25 Axcelis Technologies ACLS ai moat: latest change 2026-02-26 Cloudflare NET ai moat: latest change 2026-02-26
Moat rating wide

Wide: the CUDA software platform and its developer installed base create high switching costs across the AI-training stack, defended by $76.7B cumulative R&D and reinforced by ~71% FY2026 gross margins and Data Center revenue (~90% of total) up 68% YoY — durable, hard-to-replicate advantages per the FY2026 10-K.

source: sec.gov

narrow

Axcelis's FY2025 10-K describes a protected but contested position. On the durable side, it says 'Axcelis and Applied Materials are the only ion implant system manufacturers with a full range of implant products'. About 3,400 Axcelis products are in use in 27 countries, and they feed an aftermarket business (CS&I) that earned $268.0 million, or 31.9% of 2025 revenue. The company holds 169 active U.S. patents and 356 active patents granted in other countries. On the limiting side, the risk factors say the ion implant segment 'includes one company with substantially greater financial, engineering, manufacturing, marketing and customer service and support resources', as well as 'several smaller companies that could provide innovative systems'. U.S. export controls 'exacerbate the risk that Chinese customers will change suppliers to non-U.S. vendors', while Kingstone Semiconductor and CETC 'continue to develop ion implanters for the Chinese domestic market'. 'None of our customers have entered into a long-term agreement requiring it to purchase our products.' Revenue fell to $839.0 million in 2025 from $1,017.9 million in 2024. A full-line position with a large installed base, against a better-resourced rival and new Chinese entrants, is a narrow moat.

source: sec.gov

wide

The band is earned by a measured share gap on a hard-to-rebuild asset, not asserted. W3Techs' 17 September 2026 survey (w3techs.com/technologies/overview/proxy) puts Cloudflare in front of 25.8% of all websites, an 85.0% share of the reverse-proxy market, against Amazon CloudFront at 5.5%, Fastly at 3.0% and Akamai at 2.1% - roughly fifteen times the nearest rival. The FY2025 10-K filed 2026-02-26 describes what a challenger would have to reproduce to contest that: a network that 'spans more than 330 cities in over 125 countries worldwide and interconnects with over 13,000 networks globally', architected to 'run every service on every server in every city' - capacity and peering accumulated city by city over a decade, not bought in a quarter. The position has been monetised without margin decay: SEC XBRL fundamentals on this site show GAAP gross margin inside a 74.5-78.7% band in every fiscal year from FY2017 to FY2025 while revenue grew from $134.9M to $2,167.9M, and Cloudflare's Q4/FY2025 results release of 2026-02-10 (cloudflare.com/press/press-releases/2026/cloudflare-announces-fourth-quarter-and-fiscal-year-2025-financial-results/) reports remaining performance obligations up 48% and new annual contract value up nearly 50% year over year. What stops this being a certainty rather than a judgement: the dominant share sits in application services, while SASE and developer compute are contested by vendors the 10-K itself concedes hold 'substantially greater financial, technical, and other resources.'

source: sec.gov

Moat type intangibles ip

The durable edge rests on proprietary IP and software: the full-stack CUDA development platform running on all NVIDIA GPUs plus hundreds of proprietary domain libraries/SDKs/APIs, and $76.7B cumulative R&D yielding "inventions that are essential to modern computing" (NVIDIA invented the GPU in 1999). This is reinforced by developer-ecosystem network effects and CUDA switching costs, per the FY2026 10-K Business section.

source: sec.gov

intangibles ip

The FY2025 10-K grounds the advantage in owned implant technology rather than contractual lock-in. Its Purion implanters share 'a common platform which enables a unique combination of implant purity, precision, and productivity', and its high energy systems use 'production-proven RF Linac high energy, spot beam technology'. System assembly and testing stays in-house 'due to the high degree of expertise and intellectual property associated with the process and design'. The company holds 169 active U.S. and 356 foreign patents, though it says it is not 'substantially dependent on any single patent or any group of patents'. The installed base supports aftermarket revenue but does not lock customers in: the risk factors say customers often train 'their own staff to maintain and service' equipment and buy parts that are not patent-protected from third parties. Switching costs are therefore the weaker candidate.

source: sec.gov

cost scale

The FY2025 10-K states the mechanism outright, and it is a unit-cost curve rather than a user-to-user network: 'We have chosen to utilize this idle capacity to create a free tier of service which has generated substantial global scale for us. In turn, this scale makes us attractive partners for Internet Service Providers (ISPs) globally, which reduces our co-location and bandwidth costs. As our network grows, these dynamics become even more powerful.' The same section explains why the curve applies to every line rather than one: the architecture lets Cloudflare 'deploy standard, commodity hardware' and run 'every service on every server in every city', so a new product reaches 330+ cities at near-zero incremental capital. That is what lets the filing claim Workers is offered 'at prices that are highly competitive with public cloud vendors' while FY2025 GAAP gross margin still printed 74.5%. Switching costs (traffic routed through Cloudflare, DNS delegated to it) and threat-intelligence feedback from aggregate traffic sit on top, but the filing-stated primary source is cost falling as the network grows.

source: sec.gov

Leadership clear leader

FY2026 Data Center revenue was $193.7B (~90% of the $215.9B total), up 68% YoY on the Blackwell ramp, and NVIDIA describes itself as "a data center scale AI infrastructure company reshaping all industries." The 10-K frames named rivals as parties who "provide or intend to provide" GPUs/accelerators — incumbent-leader positioning.

source: sec.gov

fast follower

The FY2025 10-K says 'In the market for ion implantation systems, we mainly compete against Applied Materials' and that the two 'are the only ion implant system manufacturers with a full range of implant products'. It claims Axcelis 'has been a market leader in high energy ion implanters for many years' and is 'a technology leader and supplier of choice' in power devices. But its risk factors say the implant segment includes 'one company with substantially greater' resources (unnamed there; Applied Materials is the main rival it names), and it lists 'Achieve market share leadership across all served markets' as a 2026 goal rather than a current fact. No third-party market-share source was fetched, so these are the company's own claims. Which of the two full-line suppliers has the larger overall share is not established by the sources read. Because the only basis for a shared lead is the company's own description, and that description treats share leadership as a goal not yet met, the band is held at fast_follower rather than co_leader.

source: sec.gov

clear leader

Leadership is measured, not inferred. W3Techs on 2026-09-17 records an 85.0% reverse-proxy market share against 5.5% for Amazon CloudFront and 2.1% for Akamai, and makes Cloudflare the largest authoritative-DNS provider at 18.5% of all websites versus 9.9% for the next-placed GoDaddy Group. The FY2025 10-K reports the enterprise side moving the same way - 4,298 large customers at 2025 year-end against 3,497 a year earlier and 2,756 in 2023 - and the Q4/FY2025 results release (cloudflare.com/press/press-releases/2026/cloudflare-announces-fourth-quarter-and-fiscal-year-2025-financial-results/) cites the largest annual contract value deal in company history at about $42.5M per year. The band is for the application-services core the share data covers; in SASE and in serverless compute Cloudflare is a challenger to larger incumbents, and no independent placement naming Cloudflare in those markets was obtained for this profile.

source: sec.gov

Pricing power strong

FY2026 gross margin was 71.1% (75.0% in FY2025); per the 10-K MD&A the ~3.9pt decline reflects the Hopper HGX→Blackwell full-system mix shift and a one-time $4.5B H20 excess-inventory/purchase-obligation charge, not competitive price erosion. A low-70s% hardware gross margin evidences strong pricing power.

source: sec.gov

moderate

The FY2025 10-K reports gross margin of 44.9% in 2025 against 44.7% in 2024. That held steady while revenue fell from $1,017.9 million to $839.0 million, but its risk factors warn that 'if we must lower prices to remain competitive without commensurate cost of goods savings, our gross margin and profitability will be adversely affected'. They also say that if suppliers raise component costs, Axcelis 'may not be able to raise the price of our products to cover all or part of the increased cost'. On the Q2 2026 call (https://www.marketbeat.com/earnings/reports/2026-8-5-axcelis-technologies-inc-stock/), management reported a non-GAAP gross margin of 42.7% (the call states its income-statement measures are non-GAAP unless noted, so it is not directly comparable with the 10-K's GAAP figures), 'slightly below our outlook of 43%', citing CS&I mix and higher than anticipated services costs.

source: sec.gov

moderate

Evidence cuts both ways, which is why this is not the top band. For it: GAAP gross margin has never left a 74.5-78.7% band across FY2017-FY2025 (SEC XBRL fundamentals on this site) even as revenue compounded 16x, and the Q4/FY2025 results release (cloudflare.com/press/press-releases/2026/cloudflare-announces-fourth-quarter-and-fiscal-year-2025-financial-results/) shows customers committing more rather than less - RPO +48% year over year and new ACV up nearly 50%. Against it: FY2025's 74.5% is the lowest reading in that nine-year series, a large permanent free tier anchors the entry price, the 10-K positions Workers 'at prices that are highly competitive with public cloud vendors', and the competition risk factor warns that larger rivals can 'sell products and services with which we compete at zero or negative margins, offer fee waivers and reductions or other economic and non-economic concessions', with competitive pressure that 'may result in price reductions, fewer subscriptions, reduced revenue and gross margin'.

source: sec.gov

Summary

NVIDIA pairs market-leading accelerated-computing hardware (the Blackwell data-center platform) with a proprietary full-stack software moat — CUDA plus hundreds of domain libraries — funded by $76.7B of cumulative R&D, and its "large and growing number of developers and installed base... strengthens our ecosystem and increases the value of our platform for our customers" (FY2026 10-K). Competition is intensifying from AMD, Intel and Huawei, and from hyperscalers (Alphabet, Amazon, Microsoft) designing internal AI silicon, but rivals must overcome NVIDIA's entrenched CUDA software ecosystem to displace it.

Axcelis is an ion-implant specialist. The FY2025 10-K says implantation was 98.2% of 2025 revenue, sold as the Purion family of high energy, high current and medium current single-wafer implanters, the Ovation batch implanters, and aftermarket parts, upgrades and services. Its strongest ground is power devices. Axcelis calls itself 'a technology leader and supplier of choice in the implant-intensive power device segment', which made up 55% of the value of 2025 system shipments, and its Purion Power Series covers silicon carbide wafers. 2025 was a down year: revenue fell to $839.0 million from $1,017.9 million, systems backlog to $457.0 million from $645.8 million, and operating profit to $119.3 million from $210.8 million, while gross margin held at 44.9%. The 10-K names Applied Materials as the main rival and the only other full-range implant maker; other competitors include Sumitomo Heavy Industries Ion Technology, Nissin Ion Equipment, Advanced Ion Beam Technology and two Chinese developers. Among its 2026 goals the company lists 'Achieve market share leadership across all served markets', which it has not yet reached. On the Q2 2026 call (https://www.marketbeat.com/earnings/reports/2026-8-5-axcelis-technologies-inc-stock/), management said electric vehicles remain the number one driver of silicon carbide demand. It also said it expects its merger with Veeco, under which each Veeco share converts into 0.3575 Axcelis shares according to the 10-K, to close in the second half of 2026, pending approval in China.

Cloudflare sells security, performance and connectivity as services delivered from one global anycast network rather than from boxes at a customer's edge. The FY2025 10-K frames the market as a consolidation away from enterprises that 'string together a diverse set of on-premises hardware boxes from different vendors' and away from 'stringing together multiple point-cloud solutions that only address specific network needs', toward one integrated provider it calls the Connectivity Cloud, and places Cloudflare as 'a leader in this Connectivity Cloud category'. The economics are unusual: idle capacity funds a free tier, the free tier buys global traffic scale, that scale makes Cloudflare a peering partner ISPs want, and peering cuts colocation and bandwidth cost - a loop the filing says 'become[s] even more powerful' as the network grows. Independent measurement confirms where that loop has already settled the market: W3Techs on 2026-09-17 shows an 85.0% reverse-proxy share and the largest authoritative-DNS footprint at 18.5% of all websites. Commercially the company ended 2025 with roughly 332,000 paying customers in more than 190 countries and 4,298 large customers, up from 2,756 two years earlier, with no customer above 10% of revenue. The contested half of the story is the growth half: the SASE platform competes with established cloud-security, email-security and SD-WAN vendors, and the developer platform competes for storage and compute against hyperscalers, markets where the 10-K's own risk factors concede rivals have greater name recognition, larger customer bases and 'more mature products and services developed for large customers'. The core is defended; the adjacencies are being fought for, and FY2025 gross margin at a nine-year low of 74.5% is the first visible cost of building GPU capacity for that fight.

Chain position

Upstream compute-platform supplier: NVIDIA sells full-stack data-center systems (GPU + Arm CPU + DPU + NVLink/InfiniBand networking + CUDA software) to cloud providers and enterprises, and relies on third-party foundry/assembly-test-packaging partners (e.g., SPIL, Amkor, Wistron, Fabrinet). Per the FY2026 10-K, several of its largest customers (hyperscalers such as Amazon, Alphabet, Microsoft) are simultaneously customers and emerging competitors developing internal accelerated-computing silicon.

A front-end wafer-fab equipment supplier to chipmakers, concentrated in Asia and in power devices. The FY2025 10-K says implanter shipments to Asian customers were 76.0% of 2025 system revenue, international sales 83.7% of total revenue, and the top ten customers 55.2% of net sales. It also says sales to Chinese customers are expected to remain significant under U.S. export-control licensing.

Cloudflare sits between end users and whatever hosts the application - origin data centre, public cloud or SaaS - so it is a control layer in front of infrastructure rather than infrastructure a workload runs on, which the 10-K argues is the point: customers 'concerned about being locked in to any one public cloud provider' want policy enforced by 'an independent and integrated services provider'. Two AI-era roles follow from that position. As a supplier, the filing describes 'ongoing deployment of graphics processing units (GPUs) across our global network of servers' behind Workers AI, Vectorize and AI Gateway, putting inference next to the user instead of in a region. As a gatekeeper, the application-services suite now exists in part to 'easily identify, block and control access from AI crawlers and AI agents and operators' and underpins announced efforts to let content creators monetise how those crawlers reach their work - which makes Cloudflare a toll point between AI model builders and the open web.

Products (share / barrier)
  • CUDA accelerated-computing software platform (CUDA-X, NVIDIA AI Enterprise) Leader · Deep source: sec.gov
  • Data Center AI accelerators (GPU — Blackwell/Hopper) Leader · Deep source: sec.gov
  • Data-center networking / interconnect (NVLink, InfiniBand, Spectrum Ethernet, DPUs) Top 3 · Moderate source: sec.gov
  • CS&I aftermarket (spares, upgrades, used tools, services) Unknown · Moderate source: sec.gov
  • High current and medium current implanters (Purion H, Dragon, H200, Purion M) Unknown · Moderate source: sec.gov
  • High energy implanters (Purion XE/EXE, GSD Ovation batch) Top 3 · Moderate source: sec.gov
  • Power device implanters (Purion Power Series) Top 3 · Moderate source: sec.gov
Long-horizon vote +0.42 at weight 0.20 · swarm bullish

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+0.06 at weight 0.20 · swarm bearish

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+0.38 at weight 0.20 · swarm neutral

Editorial prior, not backtested.

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