VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 14, 2026

Stock Comparison

Aon plc vs Blackstone Inc.

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

Aon plc

AON · New York Stock Exchange

Market cap (USD)$75.9B
Gross margin (TTM)43.7%
Operating margin (TTM)24.8%
Net margin (TTM)16%
SectorFinancials
IndustryInsurance - Brokers
CountryIE
Data as of2025-12-31
Moat score
70/ 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 Aon plc's moat claims, evidence, and risks.

View AON analysis

Blackstone Inc.

BX · New York Stock Exchange

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorFinancials
Industry
CountryUS
Data as of2026-01-12
Moat score
61/ 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 Blackstone Inc.'s moat claims, evidence, and risks.

View BX analysis

Comparison highlights

  • Moat score gap: Aon plc leads (70 / 100 vs 61 / 100 for Blackstone Inc.).
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); Blackstone Inc. has 4 segments.
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs n/a.
  • Moat breadth: Aon plc has 6 moat types across 3 domains; Blackstone Inc. has 8 across 2.

Primary market context

Aon plc

Risk Capital

Market

Large-account commercial insurance & reinsurance brokerage and risk advisory

Geography

Global

Customer

Enterprises, insurers, reinsurers

Role

Intermediary/advisor

Revenue share

67%

Blackstone Inc.

Real Estate

Market

Private real estate investment management (opportunistic, core/core+, real estate debt, and perpetual/private-wealth real estate vehicles)

Geography

Global

Customer

Institutional investors and individual investors (via private wealth channels)

Role

Alternative asset manager / GP / investment adviser

Side-by-side metrics

Aon plc
Blackstone Inc.
Ticker / Exchange
AON - New York Stock Exchange
BX - New York Stock Exchange
Market cap (USD)
$75.9B
n/a
Gross margin (TTM)
43.7%
n/a
Operating margin (TTM)
24.8%
n/a
Net margin (TTM)
16%
n/a
Sector
Financials
Financials
Industry
Insurance - Brokers
n/a
HQ country
IE
US
Primary segment
Risk Capital
Real Estate
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
n/a
Moat score
70 / 100
61 / 100
Moat domains
Demand, Supply, Legal
Supply, Demand
Last update
2025-12-31
2026-01-12

Moat coverage

Shared moat types

Brand TrustScale Economies Unit Cost

Aon plc strengths

Data Workflow LockinSwitching Costs GeneralService Field NetworkCompliance Advantage

Blackstone Inc. strengths

Long Term ContractsDistribution ControlScope EconomiesOperational ExcellencePreferential Input AccessSuite Bundling

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

Blackstone Inc. segments

Full profile >

Real Estate

Oligopoly

n/a

Private Equity

Oligopoly

n/a

Credit & Insurance

Oligopoly

n/a

Multi-Asset Investing

Oligopoly

n/a

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

View the moat stocks list

Looking for expansion-stage stocks?

Proven models entering the expansion stage with unit economics that work.

View expansion-stage stocks

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.