InvestMoat

Coverage Universe

Best wide-moat stocks

The 25 companies with the widest moats in our coverage, ranked by moat score.

Moat 79–94·10 rated Strong Buy·7 sectors

  1. 1ASML ASMLSemiconductorsStrong BuyGrowth 81 · Val 80The only company in the world capable of producing EUV and High-NA EUV machines required for advanced chips below 7nm.94Moat
  2. 2TSMC TSMSemiconductorsStrong BuyGrowth 86 · Val 72Unmatched process-technology leadership at 3nm and below, with customer redesign costs making TSMC effectively irreplaceable for any leading-edge chip.94Moat
  3. 3Moody's MCOFinancialsAccumulateGrowth 71 · Val 75Moody's moat is one of the strongest in financial services — NRSRO regulatory designation mandated by the SEC means institutional investors are legally required to reference Moody's ratings…91Moat
  4. 4Microsoft MSFTSoftwareAccumulateGrowth 79 · Val 69Total enterprise ubiquity and the strongest bundling power in software history.90Moat
  5. 5Mastercard MAFinancialsAccumulateGrowth 81 · Val 66Critical global infrastructure with deep brand trust, proprietary AI models, and — since the BVNK close on 3 August 2026 — owned rather than rented stablecoin settlement rails.90Moat
  6. 6MSCI MSCIFinancialsAccumulateGrowth 80 · Val 66MSCI owns the global standard for equity benchmarking — trillions in AUM is legally bound to its indexes through fund prospectuses and investment mandates that cannot be changed without regulatory…90Moat
  7. 7Visa VFinancialsAccumulateGrowth 78 · Val 67The world's largest payment network with massive barriers to entry and network effects.90Moat
  8. 8S&P Global SPGIFinancialsAccumulateGrowth 71 · Val 65A global duopoly with Moody's in debt ratings. Regulatory and brand moat.90Moat
  9. 9Amazon AMZNPlatformsStrong BuyGrowth 81 · Val 82Dominant scale, switching costs (Prime), and cost advantage (Logistics).89Moat
  10. 10Intercontinental Exchange ICEFinancialsAccumulateGrowth 69 · Val 73ICE owns the global pricing benchmarks for energy derivatives (Brent crude, natural gas), the electronic system of record for U.S. mortgage ownership (MERS), and the authoritative pricing data for…89Moat
  11. 11TransDigm TDGIndustrialsStrong BuyGrowth 82 · Val 82A regulatory certification monopoly — once a TransDigm part is on an aircraft, it is the only legal replacement for the life of that airframe.87Moat
  12. 12Apple AAPLPlatformsHoldGrowth 66 · Val 61The most powerful consumer ecosystem on earth — iPhone lock-in, App Store dominance, and a services flywheel that compounds with every user added.85Moat
  13. 13DoorDash DASHPlatformsStrong BuyGrowth 80 · Val 81DoorDash holds a structural lead in US restaurant delivery (~60%+ category share) supported by a two-sided rider-restaurant marketplace, a growing DashMart + grocery + retail vertical, and an…83Moat
  14. 14Google GOOGLPlatformsStrong BuyGrowth 76 · Val 78Search monopoly with AI Overviews and AI Mode inside Google's own surface, Google Cloud accelerating to +103% YoY in Q3 2026 with a $561B backlog, and Android/YouTube data flywheels form a durable…83Moat
  15. 15Meta METAPlatformsHoldGrowth 74 · Val 65Unrivaled social graph network effect, irreplaceable proprietary data, and a rapidly growing AI platform across 3B+ users.82Moat
  16. 16NextEra Energy NEEEnergyHoldGrowth 65 · Val 74NextEra's moat is a dual-fortress: FPL's legally protected electric monopoly over Florida's fastest-growing service territory, and NEER's 35.1 GW contracted renewable backlog with solar supply…82Moat
  17. 17Axon Enterprise AXONIndustrialsStrong BuyGrowth 93 · Val 83Axon controls ~85% of major U.S. law enforcement body camera contracts, owns the only evidence management platform (Evidence.com) legally accepted in court at scale, and has $15.1B in contracted…81Moat
  18. 18NVIDIA NVDASemiconductorsStrong BuyGrowth 91 · Val 74CUDA software ecosystem and 10-year hardware lead in AI compute.81Moat
  19. 19Uber Technologies UBERPlatformsStrong BuyGrowth 78 · Val 84Global two-sided network in mobility and delivery with rider-driver liquidity that no rival can replicate at the same density — moat is real, autonomy is the existential question, and the Waymo…81Moat
  20. 20Cadence Design Systems CDNSSemiconductorsAccumulateGrowth 75 · Val 79Co-dominant EDA platform with structural lock-in across digital, custom/analog, verification, and system analysis flows used by every advanced chip designer.80Moat
  21. 21BWX Technologies BWXTIndustrialsAccumulateGrowth 69 · Val 77BWXT is the sole manufacturer of the reactors and naval fuel for every US Navy nuclear-powered submarine and aircraft carrier, and owns both of the only two privately held NRC Category I facilities…80Moat
  22. 22Synopsys SNPSSemiconductorsAccumulateGrowth 77 · Val 66Co-dominant EDA tools provider with deeply embedded software workflows used by every advanced chip designer; Ansys (one year consolidated as of this print) extends the moat into multiphysics…80Moat
  23. 23Constellation Energy CEGEnergyStrong BuyGrowth 80 · Val 83Constellation Energy's moat is a physically unreplicable nuclear fleet — ~22 GW of zero-carbon baseload locked under multi-decade contracts with Microsoft, Meta, Amazon, Google and a growing…79Moat
  24. 24Shopify SHOPPlatformsAccumulateGrowth 87 · Val 65Shopify's moat is a self-reinforcing ecosystem flywheel — 5M+ merchants attract 16,000+ app developers, while Shopify Payments (67% GMV penetration in Q1 2026, +3pp YoY) and Shop Pay embed the…79Moat
  25. 25Kazatomprom KAPHard AssetsHoldGrowth 64 · Val 74Kazatomprom is the world's largest uranium producer and its lowest-cost one, mining shallow, permeable sandstone in the Chu-Sarysu and Syrdarya basins by in-situ recovery under subsoil use…79Moat

Scores are as of each company's latest analysis; valuation and rating move with the live price on each stock page. Companies only: crypto and commodities are scored on different frameworks. Not investment advice. Browse by sector.

Wide-moat stocks: common questions

What is a wide-moat stock?

A company with a durable advantage that keeps competitors from taking its profits: network effects, switching costs, regulation, proprietary data or scale. We score twelve such moat pillars for every company and weight the ones AI is least likely to erode at 80%.

Which stock has the widest moat right now?

ASML (ASML) ranks first with a moat score of 94/100. TSMC (94), Moody's (91) and Microsoft (90) follow.

Is a wide moat enough to make a stock a buy?

No. A great business can still be priced for perfection. Each name also gets a growth score and a valuation score against our bear, base and bull targets, and the rating comes from all three.