Top 25 Stocks With the Widest Economic Moat
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An economic moat is what keeps competitors from eroding a company's profits. The widest moats belong to businesses where customers can't easily switch, where the product gets better with more users, where scale or regulatory barriers make entry prohibitively expensive, or where brands and patents create pricing power that lasts decades. These aren't just good businesses today — they're businesses structurally positioned to stay good.
The concept of economic moats was popularized by Warren Buffett, but it's grounded in Michael Porter's competitive advantage framework from the 1980s. Morningstar's research division has demonstrated that companies with wide moats tend to sustain excess returns on capital for 15-20 years, versus 3-5 years for companies without moats. The five moat dimensions we score map directly to Porter's competitive forces: switching costs create buyer lock-in, network effects build natural monopolies, cost advantages create pricing power, intangible assets (brands, patents, licenses) create legal or psychological barriers, and scale economies make it progressively cheaper to operate at volume. What makes the UQS moat score unique is that it's AI-generated with financial context — the model doesn't just read about the company, it sees the numbers that prove whether a moat theory holds up in practice.
What Is an Economic Moat?
An economic moat is a structural competitive advantage that protects a company's profits from being eroded by competitors. The concept, popularized by Warren Buffett and rooted in Michael Porter's competitive forces framework, identifies five distinct sources of durable advantage. Switching costs make it expensive or painful for customers to leave (think enterprise software deeply embedded in workflows). Network effects make a product more valuable as more people use it (payment networks, social platforms). Cost advantages let a company undercut competitors while maintaining margins (scale economies, proprietary processes). Intangible assets — brands, patents, regulatory licenses — create pricing power or legal barriers that competitors cannot replicate. Efficient scale exists when a market is only large enough to profitably support one or two players.
Companies with wide moats tend to sustain excess returns on capital for 15–20 years, versus 3–5 years for companies without them. The UQS Moat pillar scores each of these five dimensions from 0 to 20 using AI analysis grounded in real financial data — not just narrative descriptions, but quantitative evidence that the moat translates into actual financial outperformance. Learn more about how moats work in our economic moat guide.
How the Moat Score Is Calculated
The Moat pillar is uniquely AI-driven. Each of the 6,400+ stocks in our universe is evaluated by an advanced AI model across five competitive advantage dimensions: switching costs, network effects, cost advantages, intangible assets and IP, and scale and ecosystem effects. Each dimension is scored 0–20 for a total of 0–100. The AI receives detailed financial context — margins, returns on capital, revenue trends, and balance sheet data — so its assessment is grounded in quantitative reality, not just narrative. Users can override any dimension with manual sliders if they disagree with the AI's judgment.
How to Read This Moat Ranking
A moat score above 80 indicates a company with multiple strong competitive advantages — typically two or three dimensions scoring 16+ out of 20. Between 50 and 80 means the company has one or two meaningful advantages but isn't dominant across all five dimensions. Below 50, competitive advantages are weak or easily replicable. The moat score is arguably the best predictor of long-term score stability — companies with wide moats tend to maintain their quality and risk scores over time, while narrow-moat companies are more volatile.
Stocks With the Strongest Moat: Who Made the List and Why
Visa Inc. has the widest economic moat in our universe with a score of 88, reflecting dominant competitive advantages across multiple dimensions. In Financial Services, it has built structural barriers to competition that would take decades to replicate.
Microsoft Corporation earns a 85 moat score, with particularly high marks for its combination of switching costs and scale advantages. Its Technology position is reinforced by intangible assets that competitors cannot easily duplicate.
Apple Inc. (Technology) rounds out the top three with a 85 moat score. The AI assessment identifies strong network effects and brand power as its primary competitive advantages, supported by financial metrics that validate the moat thesis.
Amazon.com, Inc. (Consumer Cyclical) scores 84 on moat, with AI-identified competitive advantages spanning multiple dimensions that protect its market position.
Alphabet Inc. (Communication Services) scores 84 on moat, with AI-identified competitive advantages spanning multiple dimensions that protect its market position.
Full Moat Ranking: Top 25 Stocks
| # | Stock | Sector | Moat | UQS |
|---|---|---|---|---|
| 1 | V | Financial Services | 88 | 76 |
| 2 | MSFT | Technology | 85 | 68 |
| 3 | AAPL | Technology | 85 | 61 |
| 4 | AMZN | Consumer Cyclical | 84 | 66 |
| 5 | GOOGL | Communication Services | 84 | 64 |
| 6 | MA | Financial Services | 83 | 72 |
| 7 | TSM | Technology | 82 | 84 |
| 8 | CME | Financial Services | 82 | 71 |
| 9 | NVDA | Technology | 80 | 83 |
| 10 | VRSN | Technology | 80 | 54 |
| 11 | META | Communication Services | 77 | 72 |
| 12 | TW | Financial Services | 74 | 76 |
| 13 | NDAQ | Financial Services | 74 | 65 |
| 14 | ICE | Financial Services | 74 | 64 |
| 15 | EQIX | Real Estate | 74 | 49 |
| 16 | MELI | Consumer Cyclical | 72 | 69 |
| 17 | ASML | Technology | 70 | 65 |
| 18 | CNR.TO | Industrials | 70 | 58 |
| 19 | ENB | Energy | 70 | 48 |
| 20 | ADBE | Technology | 69 | 76 |
| 21 | SAP | Technology | 68 | 62 |
| 22 | UNH | Healthcare | 68 | 52 |
| 23 | SNPS | Technology | 68 | 45 |
| 24 | LRCX | Technology | 66 | 70 |
| 25 | KMI | Energy | 66 | 51 |
Explore the full directory of 6,400+ scored stocks
Browse All StocksFrequently Asked Questions
How does AI evaluate a company's economic moat?
The UQS moat score is generated by an advanced AI model that evaluates each company across five competitive advantage dimensions: switching costs, network effects, cost advantages, intangible assets/IP, and scale/ecosystem effects. The AI analyzes detailed financial data — profitability, margins, revenue trends, and balance sheet metrics — to assess whether the theoretical moat translates into actual financial outperformance. Each dimension is scored 0-20, and the total 0-100 score reflects overall competitive advantage strength.
Can I disagree with the AI moat assessment?
Yes. Every UQS user can override the AI-generated moat scores with manual slider adjustments for each of the five dimensions. This is especially useful for companies you know well from industry experience, or for recent developments (like a new patent grant or regulatory change) that the AI may not yet reflect. Your custom moat scores flow through to the overall UQS calculation in real time.
Why are some large, well-known companies not in the top 25 for moat?
Size alone doesn't create a moat. A large retailer competing primarily on price may have no switching costs, no network effects, and limited intangible assets — its only moat dimension might be cost advantage from scale, which earns perhaps 12-14 out of 20 on that single dimension. Meanwhile, a smaller software company with embedded enterprise switching costs, strong network effects, and patented technology might score 16+ on three dimensions. The moat score rewards structural competitive advantage, not market capitalization.
How often are the AI moat scores refreshed?
AI moat scores are refreshed quarterly to reflect changes in competitive positioning, market dynamics, and financial performance. Newly listed stocks are scored within a week of being added to our universe. Pro users can also trigger an individual AI moat assessment on demand for any stock through the dashboard.
What is a wide moat stock?
A wide moat stock is a company with strong, durable competitive advantages across multiple dimensions — switching costs, network effects, cost advantages, intangible assets, or efficient scale. The term comes from Warren Buffett's analogy of a castle (the business) surrounded by a moat (competitive advantage) that keeps invaders (competitors) at bay. In the UQS system, wide moat stocks score 80+ on the Moat pillar, meaning they have at least two or three dimensions scoring 16+ out of 20. These companies tend to sustain high returns on capital for 15–20 years, making them particularly attractive for long-term buy-and-hold investors.