VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
Alphabet Inc. vs Marsh & McLennan Companies, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Alphabet Inc.
GOOGL · The Nasdaq Stock 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 Alphabet Inc.'s moat claims, evidence, and risks.
View GOOGL analysisMarsh & McLennan Companies, Inc.
MMC · 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 Marsh & McLennan Companies, Inc.'s moat claims, evidence, and risks.
View MMC analysisComparison highlights
- Moat score gap: Alphabet Inc. leads (86 / 100 vs 65 / 100 for Marsh & McLennan Companies, Inc.).
- Segment focus: Alphabet Inc. has 6 segments (56.6% in Google Search & other (Advertising)); Marsh & McLennan Companies, Inc. has 2 segments (62.8% in Risk and Insurance Services).
- Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Strong vs Moderate.
- Moat breadth: Alphabet Inc. has 10 moat types across 4 domains; Marsh & McLennan Companies, Inc. has 5 across 3.
Primary market context
Alphabet Inc.
Google Search & other (Advertising)
Search advertising (intent-based digital ads)
Global
Advertisers (SMB to enterprise)
Ad platform / publisher
56.6%
Marsh & McLennan Companies, Inc.
Risk and Insurance Services
Insurance brokerage, risk advisory, and reinsurance brokerage/services
Global
Enterprises, public entities, associations, and individuals (via broker/agent channels)
Intermediary + advisor (insurance/reinsurance market intermediary)
62.8%
Side-by-side metrics
Moat coverage
Shared moat types
Alphabet Inc. strengths
Marsh & McLennan Companies, Inc. strengths
Segment mix
Alphabet Inc. segments
Full profile >Google Search & other (Advertising)
Quasi-Monopoly
YouTube (Advertising)
Oligopoly
Google Network (Advertising)
Competitive
Google Subscriptions, Platforms & Devices
Quasi-Monopoly
Google Cloud
Oligopoly
Other Bets
Competitive
Marsh & McLennan Companies, Inc. segments
Full profile >Risk and Insurance Services
Oligopoly
Consulting
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.