VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

RTX Corporation vs Watsco, Inc.

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

RTX Corporation

RTX · New York Stock Exchange

Market cap (USD)$252B
Gross margin (TTM)20.1%
Operating margin (TTM)9.8%
Net margin (TTM)7.7%
SectorIndustrials
IndustryAerospace & Defense
CountryUS
Data as of2026-01-02
Moat score
69/ 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 RTX Corporation's moat claims, evidence, and risks.

View RTX 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: Watsco, Inc. leads (72 / 100 vs 69 / 100 for RTX Corporation).
  • Segment focus: RTX Corporation has 3 segments (34.8% in Pratt & Whitney); Watsco, Inc. has 1 segment (100% in HVAC/R Distribution).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Moderate.
  • Moat breadth: RTX Corporation has 8 moat types across 3 domains; Watsco, Inc. has 4 across 3.

Primary market context

RTX Corporation

Pratt & Whitney

Market

Aircraft engines & aftermarket services (commercial and military)

Geography

Global

Customer

Airframers, airlines, governments

Role

Engine OEM + MRO

Revenue share

34.8%

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

RTX Corporation
Watsco, Inc.
Ticker / Exchange
RTX - New York Stock Exchange
WSO - New York Stock Exchange
Market cap (USD)
$252B
$14.4B
Gross margin (TTM)
20.1%
28.3%
Operating margin (TTM)
9.8%
10.2%
Net margin (TTM)
7.7%
7.4%
Sector
Industrials
Industrials
Industry
Aerospace & Defense
Industrial - Distribution
HQ country
US
US
Primary segment
Pratt & Whitney
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
69 / 100
72 / 100
Moat domains
Demand, Legal, Supply
Supply, Legal, Demand
Last update
2026-01-02
2026-01-05

Moat coverage

Shared moat types

No overlap yet.

RTX Corporation strengths

Design In QualificationInstalled Base ConsumablesRegulated Standards PipeService Field NetworkCapex Knowhow ScaleGovernment Contracting RelationshipsLong Term ContractsCompliance Advantage

Watsco, Inc. strengths

Physical Network DensityContractual ExclusivityScale Economies Unit CostData Workflow Lockin

Segment mix

RTX Corporation segments

Full profile >

Collins Aerospace

Oligopoly

32.1%

Pratt & Whitney

Oligopoly

34.8%

Raytheon

Oligopoly

32.9%

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.