VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
O'Reilly Automotive, Inc. vs Pfizer Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
O'Reilly Automotive, Inc.
ORLY · Nasdaq Global Select Market
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into O'Reilly Automotive, Inc.'s moat claims, evidence, and risks.
View ORLY analysisPfizer Inc.
PFE · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Comparison highlights
- Moat score gap: O'Reilly Automotive, Inc. leads (63 / 100 vs 58 / 100 for Pfizer Inc.).
- Segment focus: O'Reilly Automotive, Inc. has 2 segments (52% in DIY Aftermarket Retail); Pfizer Inc. has 5 segments (47.4% in Primary Care).
- Moat breadth: O'Reilly Automotive, Inc. has 7 moat types across 2 domains; Pfizer Inc. has 8 across 3.
Primary market context
O'Reilly Automotive, Inc.
DIY Aftermarket Retail
Specialty automotive aftermarket parts retail (DIY channel)
United States, Puerto Rico, Mexico, Canada
Consumers (do-it-yourself vehicle owners)
Specialty retailer
52%
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%
Side-by-side metrics
Moat coverage
Shared moat types
O'Reilly Automotive, Inc. strengths
Pfizer Inc. strengths
Segment mix
O'Reilly Automotive, Inc. segments
Full profile >DIY Aftermarket Retail
Oligopoly
Professional (B2B) Aftermarket Distribution
Competitive
Pfizer Inc. segments
Full profile >Primary Care
Oligopoly
Specialty Care
Oligopoly
Oncology
Competitive
Pfizer CentreOne
Competitive
Pfizer Ignite
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.