VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

CoStar Group, Inc. vs Sea Limited

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

CoStar Group, Inc.

CSGP · NASDAQ

Market cap (USD)$28.2B
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

Sea Limited

SE · New York Stock Exchange

Market cap (USD)$82.8B
Gross margin (TTM)44.9%
Operating margin (TTM)8.2%
Net margin (TTM)6.8%
SectorConsumer
IndustrySpecialty Retail
CountrySG
Data as of2026-01-06
Moat score
69/ 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 Sea Limited's moat claims, evidence, and risks.

View SE analysis

Comparison highlights

  • Moat score gap: CoStar Group, Inc. leads (75 / 100 vs 69 / 100 for Sea Limited).
  • Segment focus: CoStar Group, Inc. has 6 segments (39% in Multifamily (Apartments.com Network)); Sea Limited has 3 segments (73.8% in Shopee (E-commerce)).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: CoStar Group, Inc. has 9 moat types across 4 domains; Sea Limited 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%

Sea Limited

Shopee (E-commerce)

Market

E-commerce marketplace and related value-added services

Geography

Southeast Asia, Taiwan, Brazil

Customer

Consumers and sellers

Role

Marketplace operator

Revenue share

73.8%

Side-by-side metrics

CoStar Group, Inc.
Sea Limited
Ticker / Exchange
CSGP - NASDAQ
SE - New York Stock Exchange
Market cap (USD)
$28.2B
$82.8B
Gross margin (TTM)
79.3%
44.9%
Operating margin (TTM)
-2.7%
8.2%
Net margin (TTM)
0.7%
6.8%
Sector
Real Estate
Consumer
Industry
Real Estate - Services
Specialty Retail
HQ country
US
SG
Primary segment
Multifamily (Apartments.com Network)
Shopee (E-commerce)
Market structure
Oligopoly
Oligopoly
Market share
n/a
52% (reported)
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
75 / 100
69 / 100
Moat domains
Supply, Network, Demand, Legal
Network, Supply, Legal
Last update
2025-12-29
2026-01-06

Moat coverage

Shared moat types

Two Sided NetworkEcosystem Complements

CoStar Group, Inc. strengths

Capex Knowhow ScaleData Network EffectsData Workflow LockinDe Facto StandardIP Choke PointBrand TrustSuite Bundling

Sea Limited strengths

Distribution ControlRegulated Standards PipeDirect Network EffectsContractual Exclusivity

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%

Sea Limited segments

Full profile >

Shopee (E-commerce)

Oligopoly

73.8%

SeaMoney (Digital Financial Services)

Competitive

14.1%

Garena (Digital Entertainment)

Competitive

11.4%

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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Looking for expansion-stage stocks?

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.