VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Saturday, January 10, 2026
Stock Comparison
American Water Works Company, Inc. vs Berkshire Hathaway Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
American Water Works Company, Inc.
AWK · 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 American Water Works Company, Inc.'s moat claims, evidence, and risks.
View AWK analysisBerkshire Hathaway Inc.
BRK.B · 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 Berkshire Hathaway Inc.'s moat claims, evidence, and risks.
View BRK.B analysisComparison highlights
- Moat score gap: American Water Works Company, Inc. leads (79 / 100 vs 64 / 100 for Berkshire Hathaway Inc.).
- Segment focus: American Water Works Company, Inc. has 2 segments (91.7% in Regulated Businesses); Berkshire Hathaway Inc. has 11 segments (28.3% in Insurance (underwriting + investment income)).
- Primary market structure: Monopoly vs Competitive. Pricing power: Moderate vs n/a.
- Moat breadth: American Water Works Company, Inc. has 8 moat types across 3 domains; Berkshire Hathaway Inc. has 17 across 4.
Primary market context
American Water Works Company, Inc.
Regulated Businesses
Regulated water and wastewater utility service in certificated/franchised territories
United States (14-state footprint)
Residential, commercial, industrial, public authority, fire service, and sale-for-resale customers
Regulated utility owner/operator (water & wastewater)
91.7%
Berkshire Hathaway Inc.
Insurance (underwriting + investment income)
Insurance and reinsurance (property and casualty + life/health), including float-funded investing
Global
Consumers and businesses (policyholders) and insurers (reinsurance cedents)
Underwriter and reinsurer plus investment manager of float
28.3%
Side-by-side metrics
Moat coverage
Shared moat types
American Water Works Company, Inc. strengths
Berkshire Hathaway Inc. strengths
Segment mix
American Water Works Company, Inc. segments
Full profile >Regulated Businesses
Monopoly
Military and Contract Water Services (Other)
Duopoly
Berkshire Hathaway Inc. segments
Full profile >Insurance (underwriting + investment income)
Competitive
BNSF Railway (freight rail transportation)
Oligopoly
Berkshire Hathaway Energy (regulated utilities, pipelines, renewables)
Monopoly
Industrial products manufacturing (PCC, Lubrizol, IMC, Marmon, etc.)
Oligopoly
Building products & housing (Clayton Homes, Shaw, Johns Manville, Benjamin Moore, etc.)
Competitive
Consumer products manufacturing (Duracell, Forest River, apparel/footwear, toys, etc.)
Competitive
Service businesses (FlightSafety, NetJets, TTI, Dairy Queen, etc.)
Competitive
Retailing businesses (Berkshire Hathaway Automotive, home furnishings, jewelry, See's, etc.)
Competitive
Pilot Travel Centers (travel centers + wholesale fuel marketing)
Oligopoly
McLane (wholesale distribution to convenience stores and restaurants)
Oligopoly
Holding company capital allocation and investing
Competitive
Want the full wide moat stocks list?
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View the moat stocks listLooking for expansion-stage stocks?
Proven models entering the expansion stage with unit economics that work.
View expansion-stage stocksCuration & 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.