VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Crown Castle Inc. vs CoStar Group, Inc.

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

Crown Castle Inc.

CCI · New York Stock Exchange

Market cap (USD)$38.7B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorReal Estate
Industry
CountryUS
Data as of2026-01-02
Moat score
84/ 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 Crown Castle Inc.'s moat claims, evidence, and risks.

View CCI analysis

CoStar Group, Inc.

CSGP · NASDAQ

Market cap (USD)$27.9B
Gross margin (TTM)79.3%
Operating margin (TTM)-2.7%
Net margin (TTM)0.7%
SectorReal Estate
IndustryReal Estate - Services
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: Crown Castle Inc. leads (84 / 100 vs 75 / 100 for CoStar Group, Inc.).
  • Segment focus: Crown Castle Inc. has 2 segments (67% in Towers); CoStar Group, Inc. has 6 segments (39% in Multifamily (Apartments.com Network)).
  • Moat breadth: Crown Castle Inc. has 3 moat types across 3 domains; CoStar Group, Inc. has 9 across 4.

Primary market context

Crown Castle Inc.

Towers

Market

U.S. macrocell tower leasing (wireless site rental)

Geography

United States

Customer

Mobile network operators

Role

Infrastructure owner/lessor

Revenue share

67%

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

Crown Castle Inc.
CoStar Group, Inc.
Ticker / Exchange
CCI - New York Stock Exchange
CSGP - NASDAQ
Market cap (USD)
$38.7B
$27.9B
Gross margin (TTM)
n/a
79.3%
Operating margin (TTM)
n/a
-2.7%
Net margin (TTM)
n/a
0.7%
Sector
Real Estate
Real Estate
Industry
n/a
Real Estate - Services
HQ country
US
US
Primary segment
Towers
Multifamily (Apartments.com Network)
Market structure
Oligopoly
Oligopoly
Market share
16%-26% (implied)
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Strong
Moat score
84 / 100
75 / 100
Moat domains
Supply, Legal, Demand
Supply, Network, Demand, Legal
Last update
2026-01-02
2025-12-29

Moat coverage

Shared moat types

No overlap yet.

Crown Castle Inc. strengths

Physical Network DensityPermits Rights Of WayLong Term Contracts

CoStar Group, Inc. strengths

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

Segment mix

Crown Castle Inc. segments

Full profile >

Towers

Oligopoly

67%

Fiber (small cells + fiber solutions)

Competitive

33%

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.