VOL. XCIV, NO. 247

* WIDE MOAT STOCKS COMPARISON *

NO ADVICE

Sunday, December 28, 2025

Stock Comparison

Taiwan Semiconductor Manufacturing Company Limited vs Merck & Co., Inc.

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 >

Merck & Co., Inc.

MRK · New York Stock Exchange

Market cap (USD)$250.9B
SectorHealthcare
CountryUS
Data as of2025-12-22
Moat score
71/ 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
Merck & Co., Inc.
Ticker / Exchange
2330 - Taiwan Stock Exchange
MRK - New York Stock Exchange
Market cap (USD)
n/a
$250.9B
Sector
Technology
Healthcare
HQ country
TW
US
Primary segment
Leading-edge Foundry (7nm and below)
Pharmaceutical
Market structure
Quasi-Monopoly
Competitive
Market share
70%-72% (reported)
n/a
HHI estimate
5,165
n/a
Pricing power
Strong
Moderate
Moat score
92 / 100
71 / 100
Moat domains
Supply, Network, Demand, Financial
Legal, Supply, Demand
Last update
2025-12-28
2025-12-22

Moat coverage

Shared moat types

Capex Knowhow ScaleScope Economies

Taiwan Semiconductor Manufacturing Company Limited strengths

Ecosystem ComplementsDesign In QualificationBenchmark Pricing PowerOperational ExcellenceKeystone Component

Merck & Co., Inc. strengths

IP Choke PointRegulated Standards PipeData 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

Merck & Co., Inc. segments

Full profile >

Pharmaceutical

Competitive

89.5%

Animal Health

Oligopoly

9.2%

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.