VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Thursday, January 8, 2026
Stock Comparison
Duolingo, Inc. vs Marriott International, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Duolingo, Inc.
DUOL · NASDAQ
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Duolingo, Inc.'s moat claims, evidence, and risks.
View DUOL analysisMarriott International, Inc.
MAR · NASDAQ
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Marriott International, Inc.'s moat claims, evidence, and risks.
View MAR analysisComparison highlights
- Moat score gap: Marriott International, Inc. leads (72 / 100 vs 68 / 100 for Duolingo, Inc.).
- Segment focus: Duolingo, Inc. has 2 segments (93.9% in Duolingo App); Marriott International, Inc. has 2 segments.
- Moat breadth: Duolingo, Inc. has 6 moat types across 3 domains; Marriott International, Inc. has 4 across 3.
Primary market context
Duolingo, Inc.
Duolingo App
Mobile-first, freemium language learning and adjacent subjects (math, music)
Global
Consumers (end-users); advertisers
Digital learning platform / content & software publisher
93.9%
Marriott International, Inc.
U.S. & Canada Lodging Platform
Branded hotel franchising & management platform (including loyalty and reservation systems)
U.S. & Canada
Two-sided: travelers (guests) and hotel owners (franchisees/owners of managed properties)
Brand owner / franchisor / manager; operator of reservation, loyalty, and marketing systems
Side-by-side metrics
Moat coverage
Shared moat types
Duolingo, Inc. strengths
Marriott International, Inc. strengths
Segment mix
Duolingo, Inc. segments
Full profile >Duolingo App
Competitive
Duolingo English Test
Oligopoly
Marriott International, Inc. segments
Full profile >U.S. & Canada Lodging Platform
Competitive
International Lodging Platform
Competitive
Want the full wide moat stocks list?
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View the moat stocks listLooking for expansion-stage stocks?
Proven models entering the expansion stage with unit economics that work.
View expansion-stage stocksCuration & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.