VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 9, 2026

Stock Comparison

PACCAR Inc vs Watsco, Inc.

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

PACCAR Inc

PCAR · NASDAQ

Market cap (USD)$59.3B
Gross margin (TTM)17.4%
Operating margin (TTM)11.4%
Net margin (TTM)9.1%
SectorIndustrials
IndustryAgricultural - Machinery
CountryUS
Data as of2026-01-01
Moat score
75/ 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 PACCAR Inc's moat claims, evidence, and risks.

View PCAR 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: PACCAR Inc leads (75 / 100 vs 72 / 100 for Watsco, Inc.).
  • Segment focus: PACCAR Inc has 3 segments (73.8% in Truck); Watsco, Inc. has 1 segment (100% in HVAC/R Distribution).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Moderate.
  • Moat breadth: PACCAR Inc has 8 moat types across 3 domains; Watsco, Inc. has 4 across 3.

Primary market context

PACCAR Inc

Truck

Market

Commercial truck OEM (heavy- and medium-duty)

Geography

Global (U.S./Canada and Europe primary)

Customer

Fleets, owner-operators, dealers

Role

OEM / manufacturer

Revenue share

73.8%

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

PACCAR Inc
Watsco, Inc.
Ticker / Exchange
PCAR - NASDAQ
WSO - New York Stock Exchange
Market cap (USD)
$59.3B
$14.4B
Gross margin (TTM)
17.4%
28.3%
Operating margin (TTM)
11.4%
10.2%
Net margin (TTM)
9.1%
7.4%
Sector
Industrials
Industrials
Industry
Agricultural - Machinery
Industrial - Distribution
HQ country
US
US
Primary segment
Truck
HVAC/R Distribution
Market structure
Oligopoly
Competitive
Market share
30%-31% (reported)
9%-12% (implied)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
75 / 100
72 / 100
Moat domains
Demand, Supply, Financial
Supply, Legal, Demand
Last update
2026-01-01
2026-01-05

Moat coverage

Shared moat types

Physical Network Density

PACCAR Inc strengths

Brand TrustService Field NetworkCapex Knowhow ScaleInstalled Base ConsumablesDistribution ControlCost Of Capital AdvantageCaptive finance integration

Watsco, Inc. strengths

Contractual ExclusivityScale Economies Unit CostData Workflow Lockin

Segment mix

PACCAR Inc segments

Full profile >

Truck

Oligopoly

73.8%

Parts

Competitive

19.8%

Financial Services

Competitive

6.2%

Watsco, Inc. segments

Full profile >

HVAC/R Distribution

Competitive

100%

Want the full wide moat stocks list?

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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.