VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Nabtesco Corporation vs Duolingo, Inc.

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

Nabtesco Corporation

6268 · Tokyo Stock Exchange

Market cap (USD)$474.6B
Gross margin (TTM)28.7%
Operating margin (TTM)6.6%
Net margin (TTM)5.1%
SectorIndustrials
IndustryIndustrial - Machinery
CountryJP
Data as of2025-12-30
Moat score
91/ 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 Nabtesco Corporation's moat claims, evidence, and risks.

View 6268 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: Nabtesco Corporation leads (91 / 100 vs 68 / 100 for Duolingo, Inc.).
  • Segment focus: Nabtesco Corporation has 4 segments (34.2% in Component Solutions Business); Duolingo, Inc. has 2 segments (93.9% in Duolingo App).
  • Primary market structure: Quasi-Monopoly vs Competitive. Pricing power: Strong vs Moderate.
  • Moat breadth: Nabtesco Corporation has 5 moat types across 3 domains; Duolingo, Inc. has 6 across 3.

Primary market context

Nabtesco Corporation

Component Solutions Business

Market

Precision reduction gears (RV reducers) for industrial robot joints

Geography

Global

Customer

Industrial robot manufacturers (OEMs)

Role

Precision motion-control component supplier

Revenue share

34.2%

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

Nabtesco Corporation
Duolingo, Inc.
Ticker / Exchange
6268 - Tokyo Stock Exchange
DUOL - NASDAQ
Market cap (USD)
$474.6B
$8.6B
Gross margin (TTM)
28.7%
72%
Operating margin (TTM)
6.6%
11%
Net margin (TTM)
5.1%
40%
Sector
Industrials
Technology
Industry
Industrial - Machinery
Software - Application
HQ country
JP
US
Primary segment
Component Solutions Business
Duolingo App
Market structure
Quasi-Monopoly
Competitive
Market share
55%-65% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
91 / 100
68 / 100
Moat domains
Supply, Demand, Legal
Network, Demand, Supply
Last update
2025-12-30
2026-01-06

Moat coverage

Shared moat types

Design In QualificationBrand Trust

Nabtesco Corporation strengths

Learning Curve YieldCompliance AdvantageService Field Network

Duolingo, Inc. strengths

Data Network EffectsHabit DefaultScope EconomiesOperational Excellence

Segment mix

Nabtesco Corporation segments

Full profile >

Component Solutions Business

Quasi-Monopoly

34.2%

Transport Solutions Business

Oligopoly

27.4%

Accessibility Solutions Business

Quasi-Monopoly

33%

Other Businesses

Quasi-Monopoly

5.4%

Duolingo, Inc. segments

Full profile >

Duolingo App

Competitive

93.9%

Duolingo English Test

Oligopoly

6.1%

Want the full wide moat stocks list?

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Looking for expansion-stage stocks?

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

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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.