VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

HEICO Corporation vs Watsco, Inc.

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

HEICO Corporation

HEI · NYSE

Market cap (USD)$47.5B
Gross margin (TTM)41.1%
Operating margin (TTM)22.9%
Net margin (TTM)15.4%
SectorIndustrials
IndustryAerospace & Defense
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 HEICO Corporation's moat claims, evidence, and risks.

View HEI analysis

Watsco, Inc.

WSO · New York Stock Exchange

Market cap (USD)$14.4B
Gross margin (TTM)28.3%
Operating margin (TTM)10.2%
Net margin (TTM)7.4%
SectorIndustrials
IndustryIndustrial - Distribution
CountryUS
Data as of2026-01-05
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 Watsco, Inc.'s moat claims, evidence, and risks.

View WSO analysis

Comparison highlights

  • Moat score gap: HEICO Corporation leads (77 / 100 vs 72 / 100 for Watsco, Inc.).
  • Segment focus: HEICO Corporation has 2 segments (69.5% in Flight Support Group (FSG)); Watsco, Inc. has 1 segment (100% in HVAC/R Distribution).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Moderate.
  • Moat breadth: HEICO Corporation has 6 moat types across 3 domains; Watsco, Inc. has 4 across 3.

Primary market context

HEICO Corporation

Flight Support Group (FSG)

Market

Aerospace aftermarket replacement parts and MRO services (jet engine and aircraft components), including FAA-approved PMA parts

Geography

Global

Customer

Commercial airlines, cargo carriers, MROs, OEMs, and government/military customers

Role

Aftermarket parts manufacturer + MRO/repair provider + distributor

Revenue share

69.5%

Watsco, Inc.

HVAC/R Distribution

Market

HVAC/R equipment, parts and supplies distribution

Geography

North America (U.S., Canada, Mexico, Puerto Rico; export to Latin America/Caribbean)

Customer

Licensed HVAC and refrigeration contractors (residential & commercial)

Role

Wholesale distributor

Revenue share

100%

Side-by-side metrics

HEICO Corporation
Watsco, Inc.
Ticker / Exchange
HEI - NYSE
WSO - New York Stock Exchange
Market cap (USD)
$47.5B
$14.4B
Gross margin (TTM)
41.1%
28.3%
Operating margin (TTM)
22.9%
10.2%
Net margin (TTM)
15.4%
7.4%
Sector
Industrials
Industrials
Industry
Aerospace & Defense
Industrial - Distribution
HQ country
US
US
Primary segment
Flight Support Group (FSG)
HVAC/R Distribution
Market structure
Oligopoly
Competitive
Market share
n/a
9%-12% (implied)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
77 / 100
72 / 100
Moat domains
Legal, Supply, Demand
Supply, Legal, Demand
Last update
2025-12-30
2026-01-05

Moat coverage

Shared moat types

No overlap yet.

HEICO Corporation strengths

Regulated Standards PipeLearning Curve YieldBrand TrustDesign In QualificationIP Choke PointGovernment Contracting Relationships

Watsco, Inc. strengths

Physical Network DensityContractual ExclusivityScale Economies Unit CostData Workflow Lockin

Segment mix

HEICO Corporation segments

Full profile >

Flight Support Group (FSG)

Oligopoly

69.5%

Electronic Technologies Group (ETG)

Oligopoly

30.5%

Watsco, Inc. segments

Full profile >

HVAC/R Distribution

Competitive

100%

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.