VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Cochlear Limited vs Marsh & McLennan Companies, Inc.

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

Cochlear Limited

COH · ASX

Market cap (USD)$17B
Gross margin (TTM)74.5%
Operating margin (TTM)22.7%
Net margin (TTM)16.2%
SectorHealthcare
IndustryMedical - Devices
CountryAU
Data as of2026-01-04
Moat score
81/ 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 Cochlear Limited's moat claims, evidence, and risks.

View COH analysis

Marsh & McLennan Companies, Inc.

MMC · New York Stock Exchange

Market cap (USD)$92.2B
Gross margin (TTM)42.3%
Operating margin (TTM)23.2%
Net margin (TTM)15.6%
SectorFinancials
IndustryInsurance - Brokers
CountryUS
Data as of2025-12-31
Moat score
65/ 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 Marsh & McLennan Companies, Inc.'s moat claims, evidence, and risks.

View MMC analysis

Comparison highlights

  • Moat score gap: Cochlear Limited leads (81 / 100 vs 65 / 100 for Marsh & McLennan Companies, Inc.).
  • Segment focus: Cochlear Limited has 3 segments (62.4% in Cochlear Implants); Marsh & McLennan Companies, Inc. has 2 segments (62.8% in Risk and Insurance Services).
  • Moat breadth: Cochlear Limited has 8 moat types across 3 domains; Marsh & McLennan Companies, Inc. has 5 across 3.

Primary market context

Cochlear Limited

Cochlear Implants

Market

Cochlear implant systems (internal implant + external sound processors) for severe-to-profound hearing loss

Geography

Global

Customer

Hospitals/ENT clinics and audiology programs (providers) serving implant candidates/recipients; reimbursed by public/private payers

Role

Medical device OEM / platform owner (implant + processor + fitting software + clinical support)

Revenue share

62.4%

Marsh & McLennan Companies, Inc.

Risk and Insurance Services

Market

Insurance brokerage, risk advisory, and reinsurance brokerage/services

Geography

Global

Customer

Enterprises, public entities, associations, and individuals (via broker/agent channels)

Role

Intermediary + advisor (insurance/reinsurance market intermediary)

Revenue share

62.8%

Side-by-side metrics

Cochlear Limited
Marsh & McLennan Companies, Inc.
Ticker / Exchange
COH - ASX
MMC - New York Stock Exchange
Market cap (USD)
$17B
$92.2B
Gross margin (TTM)
74.5%
42.3%
Operating margin (TTM)
22.7%
23.2%
Net margin (TTM)
16.2%
15.6%
Sector
Healthcare
Financials
Industry
Medical - Devices
Insurance - Brokers
HQ country
AU
US
Primary segment
Cochlear Implants
Risk and Insurance Services
Market structure
Oligopoly
Oligopoly
Market share
60%-65% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
81 / 100
65 / 100
Moat domains
Demand, Legal, Supply
Supply, Demand, Legal
Last update
2026-01-04
2025-12-31

Moat coverage

Shared moat types

Brand TrustCompliance AdvantageService Field NetworkData Workflow Lockin

Cochlear Limited strengths

Capex Knowhow ScaleIP Choke PointInstalled Base ConsumablesFormat Lock In

Marsh & McLennan Companies, Inc. strengths

Switching Costs General

Segment mix

Cochlear Limited segments

Full profile >

Cochlear Implants

Oligopoly

62.4%

Services

Monopoly

25.9%

Acoustics

Oligopoly

11.7%

Marsh & McLennan Companies, Inc. segments

Full profile >

Risk and Insurance Services

Oligopoly

62.8%

Consulting

Competitive

37.2%

Want the full wide moat stocks list?

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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.