VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Moody's Corporation vs O'Reilly Automotive, Inc.

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

Moody's Corporation

MCO · New York Stock Exchange

Market cap (USD)
SectorFinancials
CountryUS
Data as of2025-12-21
Moat score
79/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

Full stock profile

Dive deeper into Moody's Corporation's moat claims, evidence, and risks.

View MCO analysis

O'Reilly Automotive, Inc.

ORLY · Nasdaq Global Select Market

Market cap (USD)
SectorConsumer
CountryUS
Data as of2025-12-31
Moat score
63/ 100

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 analysis

Comparison highlights

  • Moat score gap: Moody's Corporation leads (79 / 100 vs 63 / 100 for O'Reilly Automotive, Inc.).
  • Segment focus: Moody's Corporation has 2 segments (53.5% in Moody's Investors Service (Credit Ratings)); O'Reilly Automotive, Inc. has 2 segments (52% in DIY Aftermarket Retail).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Moody's Corporation has 5 moat types across 4 domains; O'Reilly Automotive, Inc. has 7 across 2.

Primary market context

Moody's Corporation

Moody's Investors Service (Credit Ratings)

Market

Credit ratings and ratings-related research

Geography

Global

Customer

Issuers, investors, regulators

Role

Credit rating agency / research provider

Revenue share

53.5%

O'Reilly Automotive, Inc.

DIY Aftermarket Retail

Market

Specialty automotive aftermarket parts retail (DIY channel)

Geography

United States, Puerto Rico, Mexico, Canada

Customer

Consumers (do-it-yourself vehicle owners)

Role

Specialty retailer

Revenue share

52%

Side-by-side metrics

Moody's Corporation
O'Reilly Automotive, Inc.
Ticker / Exchange
MCO - New York Stock Exchange
ORLY - Nasdaq Global Select Market
Market cap (USD)
n/a
n/a
Sector
Financials
Consumer
HQ country
US
US
Primary segment
Moody's Investors Service (Credit Ratings)
DIY Aftermarket Retail
Market structure
Oligopoly
Oligopoly
Market share
29%-32% (estimated)
n/a
HHI estimate
3,568
n/a
Pricing power
Strong
Moderate
Moat score
79 / 100
63 / 100
Moat domains
Legal, Network, Demand, Supply
Supply, Demand
Last update
2025-12-21
2025-12-31

Moat coverage

Shared moat types

Brand TrustScope Economies

Moody's Corporation strengths

Regulated Standards PipeDe Facto StandardData Workflow Lockin

O'Reilly Automotive, Inc. strengths

Supply Chain ControlPhysical Network DensityHabit DefaultService Field NetworkProcurement Inertia

Segment mix

Moody's Corporation segments

Full profile >

Moody's Investors Service (Credit Ratings)

Oligopoly

53.5%

Moody's Analytics (Risk & Data/Software)

Competitive

46.5%

O'Reilly Automotive, Inc. segments

Full profile >

DIY Aftermarket Retail

Oligopoly

52%

Professional (B2B) Aftermarket Distribution

Competitive

48%

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Curation & 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.