VOL. XCIV, NO. 247

* WIDE MOAT STOCKS COMPARISON *

NO ADVICE

Sunday, December 28, 2025

Stock Comparison

Taiwan Semiconductor Manufacturing Company Limited vs Costco Wholesale Corporation

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)
SectorTechnology
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.

View full moat analysis >

Costco Wholesale Corporation

COST · Nasdaq Global Select Market

Market cap (USD)$379.8B
SectorConsumer
CountryUS
Data as of2025-12-21
Moat score
80/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

View full moat analysis >

Side-by-side metrics

Taiwan Semiconductor Manufacturing Company Limited
Costco Wholesale Corporation
Ticker / Exchange
2330 - Taiwan Stock Exchange
COST - Nasdaq Global Select Market
Market cap (USD)
n/a
$379.8B
Sector
Technology
Consumer
HQ country
TW
US
Primary segment
Leading-edge Foundry (7nm and below)
Warehouse club retail
Market structure
Quasi-Monopoly
Oligopoly
Market share
70%-72% (reported)
n/a
HHI estimate
5,165
n/a
Pricing power
Strong
Weak
Moat score
92 / 100
80 / 100
Moat domains
Supply, Network, Demand, Financial
Supply, Financial, Demand
Last update
2025-12-28
2025-12-21

Moat coverage

Shared moat types

Operational Excellence

Taiwan Semiconductor Manufacturing Company Limited strengths

Capex Knowhow ScaleEcosystem ComplementsDesign In QualificationBenchmark Pricing PowerScope EconomiesKeystone Component

Costco Wholesale Corporation strengths

Scale Economies Unit CostNegative Working CapitalBrand TrustHabit DefaultFloat Prepayment

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

Costco Wholesale Corporation segments

Full profile >

Warehouse club retail

Oligopoly

98.1%

Membership fees (subscription)

Oligopoly

1.9%

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.