VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

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Sunday, January 11, 2026

Stock Comparison

Taiwan Semiconductor Manufacturing Company Limited vs Arthur J. Gallagher & Co.

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

Taiwan Semiconductor Manufacturing Company Limited

2330 · Taiwan Stock Exchange

Market cap (USD)$43.6T
Gross margin (TTM)59%
Operating margin (TTM)49.5%
Net margin (TTM)43.7%
SectorTechnology
IndustrySemiconductors
CountryTW
Data as of2025-12-28
Moat score
92/ 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 Taiwan Semiconductor Manufacturing Company Limited's moat claims, evidence, and risks.

View 2330 analysis

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

Comparison highlights

  • Moat score gap: Taiwan Semiconductor Manufacturing Company Limited leads (92 / 100 vs 69 / 100 for Arthur J. Gallagher & Co.).
  • Segment focus: Taiwan Semiconductor Manufacturing Company Limited has 3 segments (74% in Leading-edge Foundry (7nm and below)); Arthur J. Gallagher & Co. has 2 segments (86% in Brokerage).
  • Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Taiwan Semiconductor Manufacturing Company Limited has 7 moat types across 4 domains; Arthur J. Gallagher & Co. has 4 across 2.

Primary market context

Taiwan Semiconductor Manufacturing Company Limited

Leading-edge Foundry (7nm and below)

Market

Leading-edge semiconductor foundry services (<=7nm logic process technologies)

Geography

Global

Customer

Fabless semiconductor companies, system companies, and IDMs

Role

Dedicated foundry / contract manufacturer

Revenue share

74%

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%

Side-by-side metrics

Taiwan Semiconductor Manufacturing Company Limited
Arthur J. Gallagher & Co.
Ticker / Exchange
2330 - Taiwan Stock Exchange
AJG - New York Stock Exchange
Market cap (USD)
$43.6T
$67.9B
Gross margin (TTM)
59%
n/a
Operating margin (TTM)
49.5%
n/a
Net margin (TTM)
43.7%
n/a
Sector
Technology
Financials
Industry
Semiconductors
Insurance - Brokers
HQ country
TW
US
Primary segment
Leading-edge Foundry (7nm and below)
Brokerage
Market structure
Quasi-Monopoly
Oligopoly
Market share
70%-72% (reported)
n/a
HHI estimate
5,165
n/a
Pricing power
Strong
Moderate
Moat score
92 / 100
69 / 100
Moat domains
Supply, Network, Demand, Financial
Supply, Demand
Last update
2025-12-28
2026-01-09

Moat coverage

Shared moat types

Operational Excellence

Taiwan Semiconductor Manufacturing Company Limited strengths

Capex Knowhow ScaleEcosystem ComplementsDesign In QualificationBenchmark Pricing PowerScope EconomiesKeystone Component

Arthur J. Gallagher & Co. strengths

Service Field NetworkBrand TrustData Workflow Lockin

Segment mix

Taiwan Semiconductor Manufacturing Company Limited segments

Full profile >

Leading-edge Foundry (7nm and below)

Quasi-Monopoly

74%

Mature & Specialty Foundry (16nm and above + specialty processes)

Oligopoly

26%

Advanced Packaging & 3DFabric (CoWoS, InFO, SoIC)

Oligopoly

n/a

Arthur J. Gallagher & Co. segments

Full profile >

Brokerage

Oligopoly

86%

Risk Management

Competitive

14%

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.

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.