VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Stock Comparison
Merck & Co., Inc. vs Thermo Fisher Scientific Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Merck & 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 analysisThermo Fisher Scientific Inc.
TMO · 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 Thermo Fisher Scientific Inc.'s moat claims, evidence, and risks.
View TMO analysisComparison highlights
- Moat score gap: Merck & Co., Inc. leads (71 / 100 vs 64 / 100 for Thermo Fisher Scientific Inc.).
- Segment focus: Merck & Co., Inc. has 2 segments (89.5% in Pharmaceutical); Thermo Fisher Scientific Inc. has 4 segments (53.6% in Laboratory Products and Biopharma Services).
- Moat breadth: Merck & Co., Inc. has 5 moat types across 3 domains; Thermo Fisher Scientific Inc. has 8 across 3.
Primary market context
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%
Thermo Fisher Scientific Inc.
Laboratory Products and Biopharma Services
Laboratory supplies distribution/market channel plus outsourced biopharma services (CDMO/CRO)
Global
Pharma & biotech; academic/government labs; industrial and clinical laboratories
Distributor/market channel and outsourced services provider
53.6%
Side-by-side metrics
Moat coverage
Shared moat types
Merck & Co., Inc. strengths
Thermo Fisher Scientific Inc. strengths
Segment mix
Merck & Co., Inc. segments
Full profile >Pharmaceutical
Competitive
Animal Health
Oligopoly
Thermo Fisher Scientific Inc. segments
Full profile >Life Sciences Solutions
Oligopoly
Analytical Instruments
Oligopoly
Specialty Diagnostics
Oligopoly
Laboratory Products and Biopharma Services
Competitive
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 listLooking for expansion-stage stocks?
Proven models entering the expansion stage with unit economics that work.
View expansion-stage stocksCuration & 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.