VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, January 7, 2026
Stock Comparison
Duolingo, Inc. vs Judges Scientific plc
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 analysisJudges Scientific plc
JDG · London Stock Exchange - AIM
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Judges Scientific plc's moat claims, evidence, and risks.
View JDG analysisComparison highlights
- Moat score gap: Duolingo, Inc. leads (68 / 100 vs 63 / 100 for Judges Scientific plc).
- Segment focus: Duolingo, Inc. has 2 segments (93.9% in Duolingo App); Judges Scientific plc has 2 segments (51.7% in Vacuum).
- Moat breadth: Duolingo, Inc. has 6 moat types across 3 domains; Judges Scientific plc has 3 across 1.
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%
Judges Scientific plc
Vacuum
Vacuum and surface-science related instrumentation (e.g., UHV/vacuum components and systems, thin-film/surface engineering adjacent tools)
Global
Research labs and high-tech manufacturing
Equipment manufacturer
51.7%
Side-by-side metrics
Moat coverage
Shared moat types
Duolingo, Inc. strengths
Judges Scientific plc strengths
Segment mix
Duolingo, Inc. segments
Full profile >Duolingo App
Competitive
Duolingo English Test
Oligopoly
Judges Scientific plc segments
Full profile >Materials Sciences
Competitive
Vacuum
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.