VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

Paychex, Inc. vs Rheinmetall Aktiengesellschaft

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

Paychex, Inc.

PAYX · NASDAQ Global Select Market

Market cap (USD)$39.4B
Gross margin (TTM)73.4%
Operating margin (TTM)37.1%
Net margin (TTM)26.5%
SectorIndustrials
IndustryStaffing & Employment Services
CountryUS
Data as of2026-01-04
Moat score
66/ 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 Paychex, Inc.'s moat claims, evidence, and risks.

View PAYX analysis

Rheinmetall Aktiengesellschaft

RHM · Xetra

Market cap (USD)$80.4B
Gross margin (TTM)44.8%
Operating margin (TTM)13.6%
Net margin (TTM)7.6%
SectorIndustrials
IndustryAerospace & Defense
CountryDE
Data as of2025-12-28
Moat score
71/ 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 Rheinmetall Aktiengesellschaft's moat claims, evidence, and risks.

View RHM analysis

Comparison highlights

  • Moat score gap: Rheinmetall Aktiengesellschaft leads (71 / 100 vs 66 / 100 for Paychex, Inc.).
  • Segment focus: Paychex, Inc. has 3 segments (73% in Management Solutions); Rheinmetall Aktiengesellschaft has 4 segments (36.7% in Vehicle Systems).
  • Moat breadth: Paychex, Inc. has 7 moat types across 4 domains; Rheinmetall Aktiengesellschaft has 6 across 3.

Primary market context

Paychex, Inc.

Management Solutions

Market

Payroll processing and integrated HCM solutions for SMB and mid-market employers

Geography

United States (primarily)

Customer

Employers (SMB and mid-market)

Role

HCM SaaS + outsourced payroll/HR service provider

Revenue share

73%

Rheinmetall Aktiengesellschaft

Vehicle Systems

Market

Armored and tactical wheeled/tracked military vehicles

Geography

Global (Europe/NATO weighted)

Customer

Government / military

Revenue share

36.7%

Side-by-side metrics

Paychex, Inc.
Rheinmetall Aktiengesellschaft
Ticker / Exchange
PAYX - NASDAQ Global Select Market
RHM - Xetra
Market cap (USD)
$39.4B
$80.4B
Gross margin (TTM)
73.4%
44.8%
Operating margin (TTM)
37.1%
13.6%
Net margin (TTM)
26.5%
7.6%
Sector
Industrials
Industrials
Industry
Staffing & Employment Services
Aerospace & Defense
HQ country
US
DE
Primary segment
Management Solutions
Vehicle Systems
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
66 / 100
71 / 100
Moat domains
Demand, Supply, Legal, Financial
Legal, Demand, Supply
Last update
2026-01-04
2025-12-28

Moat coverage

Shared moat types

No overlap yet.

Paychex, Inc. strengths

Data Workflow LockinSuite BundlingService Field NetworkCompliance AdvantageUnderwriting Risk PoolingSwitching Costs GeneralFloat Prepayment

Rheinmetall Aktiengesellschaft strengths

Government Contracting RelationshipsDesign In QualificationCapacity MoatSupply Chain ControlLong Term ContractsDistribution Control

Segment mix

Paychex, Inc. segments

Full profile >

Management Solutions

Oligopoly

73%

PEO and Insurance Solutions

Competitive

24.1%

Client funds float (interest on funds held for clients)

Oligopoly

2.9%

Rheinmetall Aktiengesellschaft segments

Full profile >

Vehicle Systems

Oligopoly

36.7%

Weapon and Ammunition

Oligopoly

26.9%

Electronic Solutions

Oligopoly

16.7%

Power Systems (civilian; planned divestiture)

Competitive

19.7%

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.