VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Thursday, January 8, 2026
Stock Comparison
Duolingo, Inc. vs The Trade Desk, 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 analysisThe Trade Desk, Inc.
TTD · 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 The Trade Desk, Inc.'s moat claims, evidence, and risks.
View TTD analysisComparison highlights
- Moat score gap: Duolingo, Inc. leads (68 / 100 vs 62 / 100 for The Trade Desk, Inc.).
- Segment focus: Duolingo, Inc. has 2 segments (93.9% in Duolingo App); The Trade Desk, Inc. has 1 segment (100% in Advertising Technology Platform (DSP)).
- Moat breadth: Duolingo, Inc. has 6 moat types across 3 domains; The Trade Desk, Inc. has 4 across 2.
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%
The Trade Desk, Inc.
Advertising Technology Platform (DSP)
Demand-side platforms (DSP) for programmatic advertising (open internet)
Global
Advertising agencies and advertisers
Buy-side platform / demand aggregation
100%
Side-by-side metrics
Moat coverage
Shared moat types
Duolingo, Inc. strengths
The Trade Desk, Inc. strengths
Segment mix
Duolingo, Inc. segments
Full profile >Duolingo App
Competitive
Duolingo English Test
Oligopoly
The Trade Desk, Inc. segments
Full profile >Advertising Technology Platform (DSP)
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.