VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

Caterpillar Inc. vs CoStar Group, Inc.

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

Caterpillar Inc.

CAT · New York Stock Exchange

Market cap (USD)
SectorIndustrials
CountryUS
Data as of2025-12-25
Moat score
68/ 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 Caterpillar Inc.'s moat claims, evidence, and risks.

View CAT analysis

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

Comparison highlights

  • Moat score gap: CoStar Group, Inc. leads (75 / 100 vs 68 / 100 for Caterpillar Inc.).
  • Segment focus: Caterpillar Inc. has 5 segments (40.7% in Energy & Transportation); CoStar Group, Inc. has 6 segments (39% in Multifamily (Apartments.com Network)).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Caterpillar Inc. has 9 moat types across 4 domains; CoStar Group, Inc. has 9 across 4.

Primary market context

Caterpillar Inc.

Energy & Transportation

Market

Off-highway engines, power generation, turbines, locomotives and related services

Geography

Global

Customer

Energy companies, industrial customers, OEMs, rail and marine operators

Role

OEM + aftermarket parts/service

Revenue share

40.7%

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%

Side-by-side metrics

Caterpillar Inc.
CoStar Group, Inc.
Ticker / Exchange
CAT - New York Stock Exchange
CSGP - NASDAQ
Market cap (USD)
n/a
$28.6B
Sector
Industrials
Real Estate
HQ country
US
US
Primary segment
Energy & Transportation
Multifamily (Apartments.com Network)
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
68 / 100
75 / 100
Moat domains
Supply, Demand, Financial, Network
Supply, Network, Demand, Legal
Last update
2025-12-25
2025-12-29

Moat coverage

Shared moat types

Brand TrustCapex Knowhow ScaleSuite BundlingEcosystem Complements

Caterpillar Inc. strengths

Distribution ControlInstalled Base ConsumablesService Field NetworkDesign In QualificationUnderwriting Risk Pooling

CoStar Group, Inc. strengths

Data Network EffectsData Workflow LockinDe Facto StandardIP Choke PointTwo Sided Network

Segment mix

Caterpillar Inc. segments

Full profile >

Construction Industries

Oligopoly

35.9%

Resource Industries

Oligopoly

17.5%

Energy & Transportation

Oligopoly

40.7%

Financial Products

Competitive

5.3%

All Other

Competitive

0.6%

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%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

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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.