VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Thursday, January 8, 2026
Stock Comparison
Duolingo, Inc. vs Northrop Grumman Corporation
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 analysisNorthrop Grumman Corporation
NOC · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Northrop Grumman Corporation's moat claims, evidence, and risks.
View NOC analysisComparison highlights
- Moat score gap: Northrop Grumman Corporation leads (72 / 100 vs 68 / 100 for Duolingo, Inc.).
- Segment focus: Duolingo, Inc. has 2 segments (93.9% in Duolingo App); Northrop Grumman Corporation has 4 segments (28.7% in Aeronautics Systems).
- Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
- Moat breadth: Duolingo, Inc. has 6 moat types across 3 domains; Northrop Grumman Corporation has 6 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%
Northrop Grumman Corporation
Aeronautics Systems
Military aircraft systems (manned & unmanned) plus sustainment/modernization
Global (primarily United States and allies)
U.S. government and allied governments
Prime contractor and major subsystem supplier
28.7%
Side-by-side metrics
Moat coverage
Shared moat types
Duolingo, Inc. strengths
Northrop Grumman Corporation strengths
Segment mix
Duolingo, Inc. segments
Full profile >Duolingo App
Competitive
Duolingo English Test
Oligopoly
Northrop Grumman Corporation segments
Full profile >Aeronautics Systems
Oligopoly
Defense Systems
Oligopoly
Mission Systems
Oligopoly
Space Systems
Oligopoly
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.