VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Thursday, January 8, 2026
Stock Comparison
Caterpillar Inc. vs Duolingo, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Caterpillar Inc.
CAT · 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 Caterpillar Inc.'s moat claims, evidence, and risks.
View CAT analysisDuolingo, 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 analysisComparison highlights
- Moat score: both at 68 / 100.
- Segment focus: Caterpillar Inc. has 5 segments (40.7% in Energy & Transportation); Duolingo, Inc. has 2 segments (93.9% in Duolingo App).
- Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Moderate.
- Moat breadth: Caterpillar Inc. has 9 moat types across 4 domains; Duolingo, Inc. has 6 across 3.
Primary market context
Caterpillar Inc.
Energy & Transportation
Off-highway engines, power generation, turbines, locomotives and related services
Global
Energy companies, industrial customers, OEMs, rail and marine operators
OEM + aftermarket parts/service
40.7%
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%
Side-by-side metrics
Moat coverage
Shared moat types
Caterpillar Inc. strengths
Duolingo, Inc. strengths
Segment mix
Caterpillar Inc. segments
Full profile >Construction Industries
Oligopoly
Resource Industries
Oligopoly
Energy & Transportation
Oligopoly
Financial Products
Competitive
All Other
Competitive
Duolingo, Inc. segments
Full profile >Duolingo App
Competitive
Duolingo English Test
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.