VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Duolingo, Inc. vs Linde plc

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

Linde plc

LIN · Nasdaq Stock Market

Market cap (USD)$202.2B
Gross margin (TTM)40.5%
Operating margin (TTM)27.2%
Net margin (TTM)21.2%
SectorMaterials
IndustryChemicals - Specialty
CountryIE
Data as of2025-12-29
Moat score
72/ 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 Linde plc's moat claims, evidence, and risks.

View LIN analysis

Comparison highlights

  • Moat score gap: Linde plc leads (72 / 100 vs 68 / 100 for Duolingo, Inc.).
  • Segment focus: Duolingo, Inc. has 2 segments (93.9% in Duolingo App); Linde plc has 4 segments (43.8% in Americas).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Duolingo, Inc. has 6 moat types across 3 domains; Linde plc has 5 across 3.

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%

Linde plc

Americas

Market

Industrial gases (Americas)

Geography

Americas

Customer

B2B + healthcare

Role

Producer, distributor, on-site plant owner/operator

Revenue share

43.8%

Side-by-side metrics

Duolingo, Inc.
Linde plc
Ticker / Exchange
DUOL - NASDAQ
LIN - Nasdaq Stock Market
Market cap (USD)
$8.6B
$202.2B
Gross margin (TTM)
72%
40.5%
Operating margin (TTM)
11%
27.2%
Net margin (TTM)
40%
21.2%
Sector
Technology
Materials
Industry
Software - Application
Chemicals - Specialty
HQ country
US
IE
Primary segment
Duolingo App
Americas
Market structure
Competitive
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
68 / 100
72 / 100
Moat domains
Network, Demand, Supply
Demand, Supply, Legal
Last update
2026-01-06
2025-12-29

Moat coverage

Shared moat types

No overlap yet.

Duolingo, Inc. strengths

Data Network EffectsHabit DefaultBrand TrustScope EconomiesDesign In QualificationOperational Excellence

Linde plc strengths

Long Term ContractsPhysical Network DensityScale Economies Unit CostCapex Knowhow ScaleIP Choke Point

Segment mix

Duolingo, Inc. segments

Full profile >

Duolingo App

Competitive

93.9%

Duolingo English Test

Oligopoly

6.1%

Linde plc segments

Full profile >

Americas

Oligopoly

43.8%

EMEA

Oligopoly

25.3%

APAC

Oligopoly

20.1%

Engineering

Competitive

7%

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.