VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
Sony Group Corporation vs Marsh & McLennan Companies, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Sony Group Corporation
6758 · Tokyo 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 Sony Group Corporation's moat claims, evidence, and risks.
View 6758 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: Sony Group Corporation leads (75 / 100 vs 65 / 100 for Marsh & McLennan Companies, Inc.).
- Segment focus: Sony Group Corporation has 5 segments (37.8% in Game & Network Services); Marsh & McLennan Companies, Inc. has 2 segments (62.8% in Risk and Insurance Services).
- Moat breadth: Sony Group Corporation has 8 moat types across 4 domains; Marsh & McLennan Companies, Inc. has 5 across 3.
Primary market context
Sony Group Corporation
Game & Network Services
Console gaming platforms and associated network services
Global
Consumers (players) and game developers/publishers
Platform owner + publisher + hardware OEM
37.8%
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
Sony Group Corporation strengths
Marsh & McLennan Companies, Inc. strengths
Segment mix
Sony Group Corporation segments
Full profile >Game & Network Services
Oligopoly
Music
Oligopoly
Pictures
Oligopoly
Entertainment, Technology & Services
Competitive
Imaging & Sensing Solutions
Quasi-Monopoly
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.