VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

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Thursday, January 8, 2026

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Stock Comparison

Duolingo, Inc. vs Walmart Inc.

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

Duolingo, Inc.

DUOL · NASDAQ

Market cap (USD)$8.6B
Gross margin (TTM)72%
Operating margin (TTM)11%
Net margin (TTM)40%
SectorTechnology
IndustrySoftware - Application
CountryUS
Data as of2026-01-06
Moat score
68/ 100

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 analysis

Walmart Inc.

WMT · New York Stock Exchange

Market cap (USD)$898.6B
Gross margin (TTM)24.9%
Operating margin (TTM)4.1%
Net margin (TTM)3.3%
SectorConsumer
IndustryDiscount Stores
CountryUS
Data as of2025-12-30
Moat score
77/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

Full stock profile

Dive deeper into Walmart Inc.'s moat claims, evidence, and risks.

View WMT analysis

Comparison highlights

  • Moat score gap: Walmart Inc. leads (77 / 100 vs 68 / 100 for Duolingo, Inc.).
  • Segment focus: Duolingo, Inc. has 2 segments (93.9% in Duolingo App); Walmart Inc. has 3 segments (68.3% in Walmart U.S.).
  • Primary market structure: Competitive vs Competitive. Pricing power: Moderate vs Weak.
  • Moat breadth: Duolingo, Inc. has 6 moat types across 3 domains; Walmart Inc. has 6 across 4.

Primary market context

Duolingo, Inc.

Duolingo App

Market

Mobile-first, freemium language learning and adjacent subjects (math, music)

Geography

Global

Customer

Consumers (end-users); advertisers

Role

Digital learning platform / content & software publisher

Revenue share

93.9%

Walmart Inc.

Walmart U.S.

Market

U.S. omnichannel discount retail and grocery (supercenters, neighborhood markets, eCommerce)

Geography

United States

Customer

Consumers and small businesses; marketplace sellers and advertisers (for marketplace and retail media offerings)

Role

Retailer / marketplace operator / last-mile fulfillment network

Revenue share

68.3%

Side-by-side metrics

Duolingo, Inc.
Walmart Inc.
Ticker / Exchange
DUOL - NASDAQ
WMT - New York Stock Exchange
Market cap (USD)
$8.6B
$898.6B
Gross margin (TTM)
72%
24.9%
Operating margin (TTM)
11%
4.1%
Net margin (TTM)
40%
3.3%
Sector
Technology
Consumer
Industry
Software - Application
Discount Stores
HQ country
US
US
Primary segment
Duolingo App
Walmart U.S.
Market structure
Competitive
Competitive
Market share
n/a
20%-22% (reported)
HHI estimate
n/a
n/a
Pricing power
Moderate
Weak
Moat score
68 / 100
77 / 100
Moat domains
Network, Demand, Supply
Supply, Demand, Network, Financial
Last update
2026-01-06
2025-12-30

Moat coverage

Shared moat types

Habit Default

Duolingo, Inc. strengths

Data Network EffectsBrand TrustScope EconomiesDesign In QualificationOperational Excellence

Walmart Inc. strengths

Scale Economies Unit CostPhysical Network DensitySupply Chain ControlEcosystem ComplementsFloat Prepayment

Segment mix

Duolingo, Inc. segments

Full profile >

Duolingo App

Competitive

93.9%

Duolingo English Test

Oligopoly

6.1%

Walmart Inc. segments

Full profile >

Walmart U.S.

Competitive

68.3%

Walmart International

Competitive

18.1%

Sam's Club U.S.

Oligopoly

13.6%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

View the moat stocks list

Looking for expansion-stage stocks?

Proven models entering the expansion stage with unit economics that work.

View expansion-stage stocks

Curation & 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.