VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

CoStar Group, Inc. vs Rheinmetall Aktiengesellschaft

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

CoStar Group, Inc.

CSGP · NASDAQ

Market cap (USD)$28.6B
SectorReal Estate
CountryUS
Data as of2025-12-29
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 CoStar Group, Inc.'s moat claims, evidence, and risks.

View CSGP analysis

Rheinmetall Aktiengesellschaft

RHM · Xetra

Market cap (USD)$83.3B
SectorIndustrials
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: CoStar Group, Inc. leads (75 / 100 vs 71 / 100 for Rheinmetall Aktiengesellschaft).
  • Segment focus: CoStar Group, Inc. has 6 segments (39% in Multifamily (Apartments.com Network)); Rheinmetall Aktiengesellschaft has 4 segments (36.7% in Vehicle Systems).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: CoStar Group, Inc. has 9 moat types across 4 domains; Rheinmetall Aktiengesellschaft has 6 across 3.

Primary market context

CoStar Group, Inc.

Multifamily (Apartments.com Network)

Market

Online multifamily rental marketplaces and advertising

Geography

United States

Customer

Two-sided (renters + property managers/owners)

Role

Marketplace (subscription advertising + workflow tools)

Revenue share

39%

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

CoStar Group, Inc.
Rheinmetall Aktiengesellschaft
Ticker / Exchange
CSGP - NASDAQ
RHM - Xetra
Market cap (USD)
$28.6B
$83.3B
Sector
Real Estate
Industrials
HQ country
US
DE
Primary segment
Multifamily (Apartments.com Network)
Vehicle Systems
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
75 / 100
71 / 100
Moat domains
Supply, Network, Demand, Legal
Legal, Demand, Supply
Last update
2025-12-29
2025-12-28

Moat coverage

Shared moat types

No overlap yet.

CoStar Group, Inc. strengths

Capex Knowhow ScaleData Network EffectsData Workflow LockinDe Facto StandardIP Choke PointTwo Sided NetworkBrand TrustSuite BundlingEcosystem Complements

Rheinmetall Aktiengesellschaft strengths

Government Contracting RelationshipsDesign In QualificationCapacity MoatSupply Chain ControlLong Term ContractsDistribution Control

Segment mix

CoStar Group, Inc. segments

Full profile >

CoStar (commercial real estate info & analytics)

Oligopoly

37.3%

Information Services (lease management software + international info)

Competitive

5%

Multifamily (Apartments.com Network)

Oligopoly

39%

LoopNet (commercial property marketing marketplace)

Oligopoly

10.3%

Residential (Homes.com + OnTheMarket)

Oligopoly

3.7%

Other Marketplaces (Ten-X, Land.com, BizBuySell, etc.)

Competitive

4.8%

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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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.