VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Saturday, January 10, 2026

Stock Comparison

Arthur J. Gallagher & Co. vs Meta Platforms, Inc.

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

Arthur J. Gallagher & Co.

AJG · New York Stock Exchange

Market cap (USD)$67.9B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorFinancials
IndustryInsurance - Brokers
CountryUS
Data as of2026-01-09
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 Arthur J. Gallagher & Co.'s moat claims, evidence, and risks.

View AJG analysis

Meta Platforms, Inc.

META · Nasdaq Global Select Market

Market cap (USD)$1.6T
Gross margin (TTM)82%
Operating margin (TTM)43.2%
Net margin (TTM)30.9%
SectorCommunication Services
IndustryInternet Content & Information
CountryUS
Data as of2025-12-26
Moat score
94/ 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 Meta Platforms, Inc.'s moat claims, evidence, and risks.

View META analysis

Comparison highlights

  • Moat score gap: Meta Platforms, Inc. leads (94 / 100 vs 69 / 100 for Arthur J. Gallagher & Co.).
  • Segment focus: Arthur J. Gallagher & Co. has 2 segments (86% in Brokerage); Meta Platforms, Inc. has 2 segments (98.7% in Family of Apps (FoA)).
  • Moat breadth: Arthur J. Gallagher & Co. has 4 moat types across 2 domains; Meta Platforms, Inc. has 6 across 2.

Primary market context

Arthur J. Gallagher & Co.

Brokerage

Market

Insurance and reinsurance brokerage and consulting

Geography

Global

Customer

Commercial, industrial, public sector, nonprofit and other organizations; underwriting enterprises for reinsurance placements

Role

Intermediary / broker / advisor

Revenue share

86%

Meta Platforms, Inc.

Family of Apps (FoA)

Market

Global social media platforms & social media advertising

Geography

Global

Customer

Consumers and advertisers

Role

Two-sided platform (attention + ad auction)

Revenue share

98.7%

Side-by-side metrics

Arthur J. Gallagher & Co.
Meta Platforms, Inc.
Ticker / Exchange
AJG - New York Stock Exchange
META - Nasdaq Global Select Market
Market cap (USD)
$67.9B
$1.6T
Gross margin (TTM)
n/a
82%
Operating margin (TTM)
n/a
43.2%
Net margin (TTM)
n/a
30.9%
Sector
Financials
Communication Services
Industry
Insurance - Brokers
Internet Content & Information
HQ country
US
US
Primary segment
Brokerage
Family of Apps (FoA)
Market structure
Oligopoly
Oligopoly
Market share
n/a
55%-65% (estimated)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
69 / 100
94 / 100
Moat domains
Supply, Demand
Network, Supply
Last update
2026-01-09
2025-12-26

Moat coverage

Shared moat types

No overlap yet.

Arthur J. Gallagher & Co. strengths

Service Field NetworkBrand TrustData Workflow LockinOperational Excellence

Meta Platforms, Inc. strengths

Two Sided NetworkDirect Network EffectsData Network EffectsEcosystem ComplementsCapex Knowhow ScaleLearning Curve Yield

Segment mix

Arthur J. Gallagher & Co. segments

Full profile >

Brokerage

Oligopoly

86%

Risk Management

Competitive

14%

Meta Platforms, Inc. segments

Full profile >

Family of Apps (FoA)

Oligopoly

98.7%

Reality Labs (RL)

Quasi-Monopoly

1.3%

Want the full wide moat stocks list?

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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.