VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Thursday, January 1, 2026
Stock Comparison
Merck & Co., Inc. vs PACCAR 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 analysisPACCAR Inc
PCAR · NASDAQ
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Comparison highlights
- Moat score gap: PACCAR Inc leads (75 / 100 vs 71 / 100 for Merck & Co., Inc.).
- Segment focus: Merck & Co., Inc. has 2 segments (89.5% in Pharmaceutical); PACCAR Inc has 3 segments (73.8% in Truck).
- Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
- Moat breadth: Merck & Co., Inc. has 5 moat types across 3 domains; PACCAR 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%
PACCAR Inc
Truck
Commercial truck OEM (heavy- and medium-duty)
Global (U.S./Canada and Europe primary)
Fleets, owner-operators, dealers
OEM / manufacturer
73.8%
Side-by-side metrics
Moat coverage
Shared moat types
Merck & Co., Inc. strengths
PACCAR Inc strengths
Segment mix
Merck & Co., Inc. segments
Full profile >Pharmaceutical
Competitive
Animal Health
Oligopoly
PACCAR Inc segments
Full profile >Truck
Oligopoly
Parts
Competitive
Financial Services
Competitive
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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 Pricing, features, and availability may be incomplete or out of date.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.