VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

ASM International N.V. vs Duolingo, Inc.

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

ASM International N.V.

ASM · Euronext Amsterdam

Market cap (USD)$29.7B
Gross margin (TTM)51.9%
Operating margin (TTM)30.1%
Net margin (TTM)23.9%
SectorTechnology
IndustrySemiconductors
CountryNL
Data as of2025-12-29
Moat score
74/ 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 ASM International N.V.'s moat claims, evidence, and risks.

View ASM analysis

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

Comparison highlights

  • Moat score gap: ASM International N.V. leads (74 / 100 vs 68 / 100 for Duolingo, Inc.).
  • Segment focus: ASM International N.V. has 3 segments; Duolingo, Inc. has 2 segments (93.9% in Duolingo App).
  • Primary market structure: Quasi-Monopoly vs Competitive. Pricing power: n/a vs Moderate.
  • Moat breadth: ASM International N.V. has 5 moat types across 3 domains; Duolingo, Inc. has 6 across 3.

Primary market context

ASM International N.V.

ALD equipment

Market

Single-wafer atomic layer deposition (ALD) equipment for semiconductor manufacturing

Geography

Global

Customer

Semiconductor manufacturers (logic/foundry, memory)

Role

Wafer fab equipment supplier

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%

Side-by-side metrics

ASM International N.V.
Duolingo, Inc.
Ticker / Exchange
ASM - Euronext Amsterdam
DUOL - NASDAQ
Market cap (USD)
$29.7B
$8.6B
Gross margin (TTM)
51.9%
72%
Operating margin (TTM)
30.1%
11%
Net margin (TTM)
23.9%
40%
Sector
Technology
Technology
Industry
Semiconductors
Software - Application
HQ country
NL
US
Primary segment
ALD equipment
Duolingo App
Market structure
Quasi-Monopoly
Competitive
Market share
55%-60% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
n/a
Moderate
Moat score
74 / 100
68 / 100
Moat domains
Supply, Demand, Legal
Network, Demand, Supply
Last update
2025-12-29
2026-01-06

Moat coverage

Shared moat types

Design In Qualification

ASM International N.V. strengths

Learning Curve YieldIP Choke PointInstalled Base ConsumablesService Field Network

Duolingo, Inc. strengths

Data Network EffectsHabit DefaultBrand TrustScope EconomiesOperational Excellence

Segment mix

ASM International N.V. segments

Full profile >

ALD equipment

Quasi-Monopoly

n/a

Silicon epitaxy equipment

Oligopoly

n/a

Spares and services

Quasi-Monopoly

n/a

Duolingo, Inc. segments

Full profile >

Duolingo App

Competitive

93.9%

Duolingo English Test

Oligopoly

6.1%

Want the full wide moat stocks list?

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

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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.