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American Water Works Company, Inc. (AWK) Moat Analysis

American Water Works Company, Inc.

AWK · New York Stock Exchange

Market cap (USD)$25.7B
SectorUtilities
IndustryRegulated Water
CountryUS
Data as of
Moat score
99/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

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Overview

American Water Works is a U.S. water and wastewater company dominated by regulated utility subsidiaries across 14 states, with a smaller contracted-services business. The regulated moat is legal and structural: certificated or franchised territories face little direct competition, duplicating pipes and treatment assets is prohibitively expensive, and water-supply permits and allocation rights constrain entry. Compliance spending and corporate size are valuable capabilities but the cited evidence does not establish exclusive compliance or demonstrated unit-cost moats, so those claims are removed. The Military Services Group has 50-year DoD utility contracts and $7.4B of March 2026 remaining performance obligations, though government termination rights and price resets limit economics. Its track record is relevant to bids; contract complexity alone is not evidence of superior operations. The Essential Utilities merger has Kentucky, Ohio, and Virginia approvals but still requires remaining approvals and HSR clearance.

Primary segment

Regulated Businesses

Market structure

Monopoly

Market share

HHI:

Coverage

2 segments · 7 tags

Updated 2026-07-12

Segments

Regulated Businesses

Regulated water and wastewater utility service in certificated/franchised territories

Revenue

92%

Structure

Monopoly

Pricing

moderate

Share

Peers

WTRGAWRCWTSJW+1

Military and Contract Water Services (Other)

U.S. military installation water & wastewater utilities privatization and contracted operations/maintenance

Revenue

8%

Structure

Duopoly

Pricing

weak

Share

Peers

AWR

Moat Claims

Regulated Businesses

Regulated water and wastewater utility service in certificated/franchised territories

Revenue share uses Q1 2026 segment revenue: Regulated Businesses $1.111B of consolidated operating revenues of $1.207B. FY2025 Regulated Businesses revenue was $4.723B of total operating revenue of $5.140B. Operating_profit_share is omitted because the company discloses segment net income rather than clean segment operating profit, and Other includes corporate/unallocated items.

Monopoly

Concession License

Legal

Strength

Strength 5 of 5

Durability

Durability 3 of 3

Confidence

Confidence 5 of 5

Evidence

Evidence 3 of 5

Exclusive CPCNs/franchises (plus rate regulation) create protected service territories; direct entry is rare in existing markets.

Concession License moat: definition, examples, and stocks

Erosion risks

  • Condemnation/municipalization (eminent domain) of utility assets
  • Adverse rate case outcomes or regulatory lag
  • Political backlash on affordability leading to tighter allowed returns

Leading indicators

  • Allowed ROE and rate case outcomes
  • Rate base growth and capital recovery mechanisms
  • Customer additions via acquisitions in authorized service areas

Counterarguments

  • Municipalities can pursue condemnation or repurchase rights in some jurisdictions
  • Regulators can disallow certain costs or lower authorized returns

Physical Network Density

Supply

Strength

Strength 4 of 5

Durability

Durability 3 of 3

Confidence

Confidence 4 of 5

Evidence

Evidence 2 of 5

Dense pipes, treatment and pumping infrastructure are expensive to duplicate, reinforcing natural-monopoly economics in existing territories.

Physical Network Density moat: definition, examples, and stocks

Erosion risks

  • Aging infrastructure leading to service disruptions and higher capex
  • Extreme weather/natural events damaging infrastructure
  • Non-recovery of certain costs through rates in adverse regulatory rulings

Leading indicators

  • Main break rate and unplanned outage frequency
  • Capex execution vs plan and regulatory recovery timelines
  • Non-revenue water (leakage) trend

Counterarguments

  • Infrastructure can be taken via municipalization/condemnation rather than competed away
  • Greenfield developments can be served by alternative providers before networks exist

Permits Rights Of Way

Legal

Strength

Strength 4 of 5

Durability

Durability 3 of 3

Confidence

Confidence 4 of 5

Evidence

Evidence 1 of 5

Water supply access depends on allocations/permits/water rights and related approvals; these constraints raise barriers to serving territories at scale.

Permits Rights Of Way moat: definition, examples, and stocks

Erosion risks

  • Drought and governmental restrictions limiting withdrawals
  • Source-water contamination requiring new supplies/treatment
  • Policy changes affecting allocations or water rights

Leading indicators

  • Drought restrictions and water supply curtailments in key states
  • Purchased water percentage and costs
  • Regulatory approvals for new sources (e.g., wells, interconnects, desalination)

Counterarguments

  • Water rights/permits can be modified by policy or litigation over time
  • Alternative supplies can be developed, but typically at higher cost

Military and Contract Water Services (Other)

U.S. military installation water & wastewater utilities privatization and contracted operations/maintenance

Revenue share uses Q1 2026 segment revenue: Other $96M of consolidated operating revenues of $1.207B. FY2025 Other revenue was $417M of total operating revenue of $5.140B. Other includes MSG, municipal contracts, corporate costs, HOS seller-note interest and other non-segment items. Operating_profit_share is omitted because Other reported a Q1 2026 net loss and is not a clean profit segment.

Duopoly

Long Term Contracts

Demand

Strength

Strength 4 of 5

Durability

Durability 3 of 3

Confidence

Confidence 5 of 5

Evidence

Evidence 3 of 5

MSG operates under 50-year contracts with the U.S. government, with price adjustment/redetermination mechanisms and a stated multi-decade backlog.

Long Term Contracts moat: definition, examples, and stocks

Erosion risks

  • Termination for convenience or default/non-performance
  • Unfavorable economic price adjustments or price redeterminations
  • Suspension/debarment risk in U.S. government procurement

Leading indicators

  • MSG contract backlog and average remaining term
  • New DoD utilities privatization solicitations and win rate
  • Contract margin stability vs price adjustment outcomes

Counterarguments

  • The U.S. government can terminate contracts before term end
  • Periodic price resets can cap economic upside

Government Contracting Relationships

Legal

Strength

Strength 3 of 5

Durability

Durability 2 of 3

Confidence

Confidence 4 of 5

Evidence

Evidence 2 of 5

Experience operating multiple DoD installations implies procurement know-how, compliance systems, and referenceability that can matter in future bids.

Government Contracting Relationships moat: definition, examples, and stocks

Erosion risks

  • Procurement and security regulation changes increasing compliance burden
  • Investigations/audit findings leading to penalties or debarment
  • Loss of incumbency advantage as contracts are recompeted

Leading indicators

  • DoD bid pipeline and award announcements
  • Compliance/audit outcomes (e.g., cybersecurity and procurement)
  • Recompete outcomes for expiring contracts

Counterarguments

  • Government customers are sophisticated and price-sensitive buyers
  • A small set of rivals can still bid aggressively (especially at recompete)

Evidence

sec_filing

Regulated Businesses generally do not face direct competition in their existing markets

Supports legal/franchise-based exclusivity in served markets.

sec_filing

utility commissions or other entities engaged in utility regulation

Reinforces that the core business operates under state utility regulation.

sec_filing

operating revenues increased $62 million primarily due to increases of $56 million from authorized rate increases

Shows current-period regulated revenue recovery through rate authorizations and infrastructure surcharges.

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Regulated Businesses generally own the physical assets used to store, pump, treat and deliver water.

Shows ownership of hard-to-replicate physical networks and assets.

sec_filing

The high cost of constructing a new water and wastewater system

Explicitly states network duplication cost as a barrier.

Showing 5 of 11 sources.

Risks & Indicators

Erosion risks

  • Condemnation/municipalization (eminent domain) of utility assets
  • Adverse rate case outcomes or regulatory lag
  • Political backlash on affordability leading to tighter allowed returns
  • Proposed Essential Utilities merger approval or integration risk
  • Aging infrastructure leading to service disruptions and higher capex
  • Extreme weather/natural events damaging infrastructure

Leading indicators

  • Allowed ROE and rate case outcomes
  • Rate base growth and capital recovery mechanisms
  • Customer additions via acquisitions in authorized service areas
  • Regulatory approvals and conditions for the proposed Essential Utilities merger
  • Main break rate and unplanned outage frequency
  • Capex execution vs plan and regulatory recovery timelines

Keep the research going

Created 2026-01-09
Updated 2026-07-12

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