VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Taiwan Semiconductor Manufacturing Company Limited vs Sea Limited

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)$44.2T
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

Sea Limited

SE · New York Stock Exchange

Market cap (USD)$82.8B
Gross margin (TTM)44.9%
Operating margin (TTM)8.2%
Net margin (TTM)6.8%
SectorConsumer
IndustrySpecialty Retail
CountrySG
Data as of2026-01-06
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 Sea Limited's moat claims, evidence, and risks.

View SE analysis

Comparison highlights

  • Moat score gap: Taiwan Semiconductor Manufacturing Company Limited leads (92 / 100 vs 69 / 100 for Sea Limited).
  • Segment focus: Taiwan Semiconductor Manufacturing Company Limited has 3 segments (74% in Leading-edge Foundry (7nm and below)); Sea Limited has 3 segments (73.8% in Shopee (E-commerce)).
  • 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; Sea Limited has 6 across 3.

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%

Sea Limited

Shopee (E-commerce)

Market

E-commerce marketplace and related value-added services

Geography

Southeast Asia, Taiwan, Brazil

Customer

Consumers and sellers

Role

Marketplace operator

Revenue share

73.8%

Side-by-side metrics

Taiwan Semiconductor Manufacturing Company Limited
Sea Limited
Ticker / Exchange
2330 - Taiwan Stock Exchange
SE - New York Stock Exchange
Market cap (USD)
$44.2T
$82.8B
Gross margin (TTM)
59%
44.9%
Operating margin (TTM)
49.5%
8.2%
Net margin (TTM)
43.7%
6.8%
Sector
Technology
Consumer
Industry
Semiconductors
Specialty Retail
HQ country
TW
SG
Primary segment
Leading-edge Foundry (7nm and below)
Shopee (E-commerce)
Market structure
Quasi-Monopoly
Oligopoly
Market share
70%-72% (reported)
52% (reported)
HHI estimate
5,165
n/a
Pricing power
Strong
Moderate
Moat score
92 / 100
69 / 100
Moat domains
Supply, Network, Demand, Financial
Network, Supply, Legal
Last update
2025-12-28
2026-01-06

Moat coverage

Shared moat types

Ecosystem Complements

Taiwan Semiconductor Manufacturing Company Limited strengths

Capex Knowhow ScaleDesign In QualificationBenchmark Pricing PowerScope EconomiesOperational ExcellenceKeystone Component

Sea Limited strengths

Two Sided NetworkDistribution ControlRegulated Standards PipeDirect Network EffectsContractual Exclusivity

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

Sea Limited segments

Full profile >

Shopee (E-commerce)

Oligopoly

73.8%

SeaMoney (Digital Financial Services)

Competitive

14.1%

Garena (Digital Entertainment)

Competitive

11.4%

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.