VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Saturday, January 10, 2026

Stock Comparison

Arthur J. Gallagher & Co. vs CME Group 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

CME Group Inc.

CME · NASDAQ

Market cap (USD)$94.6B
Gross margin (TTM)86.1%
Operating margin (TTM)65%
Net margin (TTM)58.6%
SectorFinancials
IndustryFinancial - Data & Stock Exchanges
CountryUS
Data as of2025-12-30
Moat score
81/ 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 CME Group Inc.'s moat claims, evidence, and risks.

View CME analysis

Comparison highlights

  • Moat score gap: CME Group Inc. leads (81 / 100 vs 69 / 100 for Arthur J. Gallagher & Co.).
  • Segment focus: Arthur J. Gallagher & Co. has 2 segments (86% in Brokerage); CME Group Inc. has 3 segments (81.4% in Trading and Clearing (Derivatives + Cash Markets Platforms)).
  • Moat breadth: Arthur J. Gallagher & Co. has 4 moat types across 2 domains; CME Group Inc. has 10 across 5.

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%

CME Group Inc.

Trading and Clearing (Derivatives + Cash Markets Platforms)

Market

Exchange-traded derivatives (futures and options) trading and central counterparty clearing; plus electronic cash markets matching (U.S. Treasuries/repo, spot FX) tied to CME platforms

Geography

Global (core U.S. footprint with international participation)

Customer

Institutional and professional traders; commercial hedgers; banks; broker-dealers; futures commission merchants (FCMs); asset managers; proprietary trading firms; governments and central banks

Role

Market operator (exchange/venue) + central counterparty clearing provider

Revenue share

81.4%

Side-by-side metrics

Arthur J. Gallagher & Co.
CME Group Inc.
Ticker / Exchange
AJG - New York Stock Exchange
CME - NASDAQ
Market cap (USD)
$67.9B
$94.6B
Gross margin (TTM)
n/a
86.1%
Operating margin (TTM)
n/a
65%
Net margin (TTM)
n/a
58.6%
Sector
Financials
Financials
Industry
Insurance - Brokers
Financial - Data & Stock Exchanges
HQ country
US
US
Primary segment
Brokerage
Trading and Clearing (Derivatives + Cash Markets Platforms)
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
69 / 100
81 / 100
Moat domains
Supply, Demand
Network, Legal, Supply, Financial, Demand
Last update
2026-01-09
2025-12-30

Moat coverage

Shared moat types

Data Workflow Lockin

Arthur J. Gallagher & Co. strengths

Service Field NetworkBrand TrustOperational Excellence

CME Group Inc. strengths

Two Sided NetworkClearing SettlementConcession LicenseScale Economies Unit CostBenchmark Pricing PowerIP Choke PointDe Facto StandardDistribution ControlSwitching Costs General

Segment mix

Arthur J. Gallagher & Co. segments

Full profile >

Brokerage

Oligopoly

86%

Risk Management

Competitive

14%

CME Group Inc. segments

Full profile >

Trading and Clearing (Derivatives + Cash Markets Platforms)

Oligopoly

81.4%

Market Data and Information Services

Monopoly

11.6%

Access, Connectivity and Other Exchange Services

Monopoly

7%

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.