VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
BlackRock, Inc. vs Merck & Co., Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
BlackRock, Inc.
BLK · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into BlackRock, Inc.'s moat claims, evidence, and risks.
View BLK analysisMerck & Co., Inc.
MRK · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Merck & Co., Inc.'s moat claims, evidence, and risks.
View MRK analysisComparison highlights
- Moat score gap: Merck & Co., Inc. leads (71 / 100 vs 59 / 100 for BlackRock, Inc.).
- Segment focus: BlackRock, Inc. has 7 segments (33% in iShares ETFs & ETPs); Merck & Co., Inc. has 2 segments (89.5% in Pharmaceutical).
- Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Moderate.
- Moat breadth: BlackRock, Inc. has 10 moat types across 2 domains; Merck & Co., Inc. has 5 across 3.
Primary market context
BlackRock, Inc.
iShares ETFs & ETPs
Exchange-traded funds (ETFs) and exchange-traded products (ETPs)
Global
Institutional and retail (via intermediaries)
ETF sponsor / asset manager
33%
Merck & Co., Inc.
Pharmaceutical
Branded prescription pharmaceuticals & human vaccines
Global
Wholesalers/retailers, managed care and government payers, hospitals/clinics
R&D-intensive innovator, manufacturer, and marketer
89.5%
Side-by-side metrics
Moat coverage
Shared moat types
BlackRock, Inc. strengths
Merck & Co., Inc. strengths
Segment mix
BlackRock, Inc. segments
Full profile >iShares ETFs & ETPs
Oligopoly
Institutional Index Mandates (Non-ETF)
Oligopoly
Active & Multi-Asset (Public Markets)
Competitive
Alternatives & Private Markets
Oligopoly
Cash Management (MMFs & cash solutions)
Competitive
Aladdin & Technology Services
Oligopoly
Distribution & Advisory Services
Competitive
Merck & Co., Inc. segments
Full profile >Pharmaceutical
Competitive
Animal Health
Oligopoly
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View the moat stocks listCuration & 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.