VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

CoStar Group, Inc. vs VeriSign, Inc.

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

VeriSign, Inc.

VRSN · Nasdaq Global Select Market

Market cap (USD)
SectorTechnology
CountryUS
Data as of2025-12-31
Moat score
100/ 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 VeriSign, Inc.'s moat claims, evidence, and risks.

View VRSN analysis

Comparison highlights

  • Moat score gap: VeriSign, Inc. leads (100 / 100 vs 75 / 100 for CoStar Group, Inc.).
  • Segment focus: CoStar Group, Inc. has 6 segments (39% in Multifamily (Apartments.com Network)); VeriSign, Inc. has 1 segment (100% in Naming Services (.com and .net registry)).
  • Primary market structure: Oligopoly vs Monopoly. Pricing power: Strong vs Strong.
  • Moat breadth: CoStar Group, Inc. has 9 moat types across 4 domains; VeriSign, Inc. has 4 across 4.

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%

VeriSign, Inc.

Naming Services (.com and .net registry)

Market

Registry operator services for .com and .net top-level domains (domain registrations + authoritative DNS resolution)

Geography

Global

Customer

ICANN-accredited domain registrars (wholesale) and, indirectly, registrants

Role

Registry operator / DNS infrastructure provider

Revenue share

100%

Side-by-side metrics

CoStar Group, Inc.
VeriSign, Inc.
Ticker / Exchange
CSGP - NASDAQ
VRSN - Nasdaq Global Select Market
Market cap (USD)
$28.6B
n/a
Sector
Real Estate
Technology
HQ country
US
US
Primary segment
Multifamily (Apartments.com Network)
Naming Services (.com and .net registry)
Market structure
Oligopoly
Monopoly
Market share
n/a
100% (reported)
HHI estimate
n/a
10,000
Pricing power
Strong
Strong
Moat score
75 / 100
100 / 100
Moat domains
Supply, Network, Demand, Legal
Legal, Network, Supply, Financial
Last update
2025-12-29
2025-12-31

Moat coverage

Shared moat types

De Facto Standard

CoStar Group, Inc. strengths

Capex Knowhow ScaleData Network EffectsData Workflow LockinIP Choke PointTwo Sided NetworkBrand TrustSuite BundlingEcosystem Complements

VeriSign, Inc. strengths

Concession LicenseOperational ExcellenceFloat Prepayment

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%

VeriSign, Inc. segments

Full profile >

Naming Services (.com and .net registry)

Monopoly

100%

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.