VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
Aon plc vs Diageo plc
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Aon plc
AON · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Diageo plc
DGE · London 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: Diageo plc leads (77 / 100 vs 70 / 100 for Aon plc).
- Segment focus: Aon plc has 2 segments (67% in Risk Capital); Diageo plc has 3 segments (76% in Spirits).
- Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
- Moat breadth: Aon plc has 6 moat types across 3 domains; Diageo plc has 3 across 2.
Primary market context
Aon plc
Risk Capital
Large-account commercial insurance & reinsurance brokerage and risk advisory
Global
Enterprises, insurers, reinsurers
Intermediary/advisor
67%
Diageo plc
Spirits
Branded premium spirits (whisky, tequila, vodka, gin, rum, liqueurs)
Global
Consumers via off-trade retailers and on-trade outlets; distributors/wholesalers and key accounts
Brand owner and producer with route-to-market execution
76%
Side-by-side metrics
Moat coverage
Shared moat types
Aon plc strengths
Diageo plc strengths
Segment mix
Aon plc segments
Full profile >Risk Capital
Oligopoly
Human Capital
Oligopoly
Diageo plc segments
Full profile >Spirits
Oligopoly
Beer (Guinness and other beers)
Oligopoly
Ready-to-Drink (RTDs)
Competitive
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