VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
Pfizer Inc. vs Walmart Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Pfizer Inc.
PFE · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Walmart Inc.
WMT · 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 Walmart Inc.'s moat claims, evidence, and risks.
View WMT analysisComparison highlights
- Moat score gap: Walmart Inc. leads (77 / 100 vs 58 / 100 for Pfizer Inc.).
- Segment focus: Pfizer Inc. has 5 segments (47.4% in Primary Care); Walmart Inc. has 3 segments (68.3% in Walmart U.S.).
- Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Weak.
- Moat breadth: Pfizer Inc. has 8 moat types across 3 domains; Walmart Inc. has 6 across 4.
Primary market context
Pfizer Inc.
Primary Care
Branded primary care medicines and vaccines (incl. cardiovascular, migraine, pneumococcal/RSV/COVID-19)
Global
Healthcare providers, payers/PBMs, pharmacies/wholesalers, and government procurement
Innovator biopharma (R&D + manufacturing + commercialization)
47.4%
Walmart Inc.
Walmart U.S.
U.S. omnichannel discount retail and grocery (supercenters, neighborhood markets, eCommerce)
United States
Consumers and small businesses; marketplace sellers and advertisers (for marketplace and retail media offerings)
Retailer / marketplace operator / last-mile fulfillment network
68.3%
Side-by-side metrics
Moat coverage
Shared moat types
No overlap yet.
Pfizer Inc. strengths
Walmart Inc. strengths
Segment mix
Pfizer Inc. segments
Full profile >Primary Care
Oligopoly
Specialty Care
Oligopoly
Oncology
Competitive
Pfizer CentreOne
Competitive
Pfizer Ignite
Competitive
Walmart Inc. segments
Full profile >Walmart U.S.
Competitive
Walmart International
Competitive
Sam's Club U.S.
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.