VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Duolingo, Inc. vs Masco Corporation

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

Masco Corporation

MAS · New York Stock Exchange

Market cap (USD)$13.3B
Gross margin (TTM)35.7%
Operating margin (TTM)17%
Net margin (TTM)10.9%
SectorIndustrials
IndustryConstruction
CountryUS
Data as of2025-12-26
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 Masco Corporation's moat claims, evidence, and risks.

View MAS analysis

Comparison highlights

  • Moat score gap: Masco Corporation leads (72 / 100 vs 68 / 100 for Duolingo, Inc.).
  • Segment focus: Duolingo, Inc. has 2 segments (93.9% in Duolingo App); Masco Corporation has 2 segments (62% in Plumbing Products).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Duolingo, Inc. has 6 moat types across 3 domains; Masco Corporation has 3 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%

Masco Corporation

Plumbing Products

Market

Residential plumbing fixtures and fittings (faucets, showers, valves, bath hardware, sinks) and plumbing components

Geography

North America and Europe

Customer

Home center retailers, wholesalers/distributors and online retailers; end users include plumbers, contractors, remodelers, homebuilders and consumers

Role

Branded manufacturer

Revenue share

62%

Side-by-side metrics

Duolingo, Inc.
Masco Corporation
Ticker / Exchange
DUOL - NASDAQ
MAS - New York Stock Exchange
Market cap (USD)
$8.6B
$13.3B
Gross margin (TTM)
72%
35.7%
Operating margin (TTM)
11%
17%
Net margin (TTM)
40%
10.9%
Sector
Technology
Industrials
Industry
Software - Application
Construction
HQ country
US
US
Primary segment
Duolingo App
Plumbing Products
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
2025-12-26

Moat coverage

Shared moat types

Brand TrustScope Economies

Duolingo, Inc. strengths

Data Network EffectsHabit DefaultDesign In QualificationOperational Excellence

Masco Corporation strengths

Contractual Exclusivity

Segment mix

Duolingo, Inc. segments

Full profile >

Duolingo App

Competitive

93.9%

Duolingo English Test

Oligopoly

6.1%

Masco Corporation segments

Full profile >

Plumbing Products

Oligopoly

62%

Decorative Architectural Products

Oligopoly

38%

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.