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 | GitLab | Applied Optoelectronics | |
|---|---|---|---|
| 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. | narrow The FY2026 10-K (year ended 2026-01-31) shows real expansion inside the installed base: 118% Dollar-Based Net Retention, Base Customers up to 10,682 from 9,893, customers above $100,000 of ARR up to 1,456 from 1,229, and $1.0 million ARR customers "to 155 from 123, an increase of 26%". But the filing concedes "limited barriers to entry" and names "Microsoft Corporation, which owns GitHub" as principal competitor. Retention decelerates (130% FY2024, 123% FY2025, 118% FY2026), and since DBNR is reported "on a threshold basis of 130%," the FY2024 figure is a cap and the slide is steeper than it looks. Narrow, not wide: expansion must be re-won against a bundled hyperscaler. | narrow FY2025 10-K (Item 1, 'Our Technology' and 'Competition'): AOI is vertically integrated down to its own laser chips, fabricated exclusively in Sugar Land, TX with a combined MBE+MOCVD process it believes is 'unique in our industry' and 'difficult and time-consuming for other vendors to replicate'; the same filing calls the optical networking market 'intensely competitive' with larger, better-resourced rivals (Coherent, InnoLight, Eoptolink, Lumentum et al.), so the process edge is real but not dominant — https://www.sec.gov/Archives/edgar/data/1158114/000143774926005875/aaoi20251231_10k.htm |
| 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. | switching costs Stickiness comes from platform embedding, not IP. The 10-K rests differentiation on "our single platform with a unified data model," on "Consolidation of multiple tools into a single platform," and on deployment inside the customer's own perimeter for regulated buyers. Replacement means re-integrating a toolchain and re-certifying compliance. IP is the wrong label: only "16 issued patents and 25 pending patent applications," plus open-source licenses granting "broad permissions to use, copy, modify, and redistribute." The no-lock-in claim is the filing's own characterisation, footnoted to a Forrester study "commissioned by GitLab." | intangibles ip FY2025 10-K (Item 1, 'Our Technology' / 'Intellectual Property'): the differentiation the company itself leads with is process know-how — proprietary MBE laser fabrication combined with MOCVD ('to our knowledge, we are unique in incorporating MBE processes in the production of communications lasers in high volume'), 199 issued U.S. patents plus 140 in China/Taiwan, and explicit reliance on unpatented trade secrets — https://www.sec.gov/Archives/edgar/data/1158114/000143774926005875/aaoi20251231_10k.htm |
| 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. | fast follower The 10-K positions GitLab against a leader rather than as one: "Our principal competitor is Microsoft Corporation, which owns GitHub." Competition reads from the challenger side, differentiating "from GitHub through flexible deployment options that work within enterprise security and compliance requirements, LLM neutrality with self-hosted gateway support" and an open core model. On AI it follows: Duo Agent Platform went "Generally available in January 2026," the last month of the fiscal year. What keeps it a follower rather than behind is cadence, "a new version of our software every month for 172 months in a row," plus a regulated-deployment franchise a SaaS-first rival does not cover. | fast follower Bifurcated: the FY2025 10-K self-describes an 'industry-leading position in the CATV market' serving 'a majority of the largest CATV equipment manufacturers,' but in datacenter optics — its AI-relevant line — AAOI is not among the vendors LightCounting's March 2026 quarterly update credits with record 2025 results (InnoLight, Coherent, Eoptolink, Fabrinet, Lumentum), so company-level it reads as a fast follower chasing the 800G/1.6T leaders — https://www.lightcounting.com/newsletter/en/march-2026-quarterly-market-update-380 |
| 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. | moderate FY2026 gross margin was 87% against 89%, with cost of revenue up $35.6 million "primarily due to an increase of $18.4 million in third party hosting costs for SaaS and cloud usage," and management expects SaaS and Duo mix to bring costs that "may adversely impact our gross margins." Strain is explicit: GitLab "may be required to reduce our prices," competitors "may offer their products and services at a lower price or for free," and it "implemented user limits on our free SaaS product." Power retained: Premium lists at $29 per user/month billed annually, and seats bundle $12 and $24 of GitLab Credits. But "A majority of our subscriptions are on a one-year period." | moderate FY2025 10-K (MD&A cost/pricing discussion): gross margin fluctuates with 'decreases in average selling prices,' but in CATV — 53.8% of 2025 revenue — the company states 'we believe we face less downward price pressure than many of our competitors' due to the value of its outsourced design services; FY2025 gross margin was 30.0%, up from 24.8% in 2024 — https://www.sec.gov/Archives/edgar/data/1158114/000143774926005875/aaoi20251231_10k.htm |
| 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. | GitLab sells a single-platform DevSecOps toolchain defended by workflow lock-in rather than intellectual property: a unified data model plus deployment flexibility, including single-tenant "Dedicated for Government with FedRAMP compliance," makes it hard to remove where data residency is contractual. The installed base expands: 118% Dollar-Based Net Retention, 10,682 Base Customers, 1,456 above $100,000 of ARR, 155 above $1.0 million (up 26%), over 70% of ARR from public sector and enterprise. The filing supplies the counterweight: "limited barriers to entry," Microsoft/GitHub as principal competitor, 16 issued patents. Retention (130 to 123 to 118, the 130 a cap), gross margin (89% to 87%) and a January 2026 AI launch point to compression at the commodity end. No source measures market share, so every share band is "unknown". | AOI is a vertically integrated fiber-optics maker whose FY2025 revenue of $455.7M split 53.8% CATV and 42.9% internet datacenter (FY2025 10-K). Its defensible core is laser-fab process IP (MBE+MOCVD, all chips made in Sugar Land) plus highly automated U.S. module production the 10-K pitches as a supply-chain-security advantage. The AI datacenter line is ramping hard — Q2 2026 was a fifth consecutive record revenue quarter at $191.9M with 800G shipments more than doubling sequentially and demand forecast to outpace capacity through mid-2027 (Q2 2026 release) — but AAOI is absent from LightCounting's list of vendors that set records in the $23.8B 2025 transceiver market (InnoLight, Coherent, Eoptolink), so it ramps as a challenger, not a leader. The moat is narrow and concentration-risked: Digicomm was 53.1% and Microsoft 28.8% of 2025 revenue (10-K). |
| 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. | GitLab sits at the software-tooling layer, not compute or models. It consumes third-party LLM capacity — marketing "LLM neutrality and support for self-hosted AI gateways, including air-gapped environments" — so it captures no model-layer economics and bears inference as COGS, visible in the $18.4 million rise in hosting costs. Its distinctive position is the regulated perimeter. | Upstream optics supplier to the AI buildout: sells 800G/1.6T transceivers into hyperscale datacenters (Microsoft was 28.8% of 2025 revenue; Oracle 12.4% in 2024) and lasers/turn-key HFC equipment into CATV via distributor Digicomm (53.1% of 2025 revenue), per the FY2025 10-K — https://www.sec.gov/Archives/edgar/data/1158114/000143774926005875/aaoi20251231_10k.htm |
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| Long-horizon vote | +0.17 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.06 at weight 0.20 · swarm neutral Editorial prior, not backtested. | +0.06 at weight 0.20 · swarm neutral Editorial prior, not backtested. |