The Moat Index

ATMOS ENERGY CORP

ATO · Utilities · $28.7B mkt cap · FY2025 filings · Shallow moat ·

Doesn't clear the bar

45/ 100
Shallow moat

The four filters

Pricing power94

Median gross margin 69.7% over 7y, stable.

Returns on capital4

Median ROIC 5.8%, above the 9% hurdle in 0% of years.

Balance-sheet safety20

Net debt/EBITDA 3.8x, interest coverage 9x.

Capital discipline60

Owner earnings +14.7%/yr, share count growing (dilution).

Margin of safety

Above valueOn sale
80% above value
Owner earnings (normalized)
$885.9M
Est. intrinsic value / share
$98.69
Recent price
$177.68
Discount to value
80% above value

Conservative model: 9% discount rate, 4% assumed growth (capped at 4%), maintenance capex ≈ min(capex, D&A).

19 years of fundamentals

The business, in plain English

Across the filed record, revenue grew from $2.5B (FY2016) to $4.7B (FY2025) — about 7.5% a year compounded over 9 years.

It earned 5.7% on invested capital in FY2025, with a median of 6.1% across 18 filed years. The Returns on Capital filter above scores it 4/100.

The balance sheet carried $8.9B of total debt in FY2025 against $1.2B of owner earnings — roughly 7.4 years of owner earnings to retire it all. Balance-Sheet Safety scores it 20/100.

The share count rose 52.3% between FY2017 and FY2025 — existing owners have been diluted over the record. Capital Discipline scores it 60/100.

Put together: Pricing Power is the strongest of the four filters (94/100) and Returns on Capital the weakest (4/100), which is how ATO lands at 45/100 — a Shallow moat.

This breakdown is generated from the filed numbers and sub-scores above — no outside narrative, no estimates. Where a filing doesn’t disclose an input, the sentence that would need it is omitted instead of guessed.

FY2007–FY2025 · 19 fiscal years, normalized from ATO’s SEC filings

RevenueSales, as filed$4.7B FY2025
$0$2B$4B2007201320192025
Gross marginRevenue kept after cost of goods66.0% FY2023
0%50%2007201320192025
Return on invested capitalOperating profit on the capital employed5.7% FY2025
0%5%10%2007201320192025
Owner earningsCash an owner could take out$1.2B FY2025
$0$500M$1B2007201320192025

Gaps in a line mean that item isn’t in ATO’s filings for that year — the series is never interpolated or estimated. The Table view lists every filed value, including operating and net margins, total debt, and share count.

Moat Score history

3 logged readings since Jul 17, 2026 · append-only, never rewritten

Moat Score over timeLast scored reading of each day, on the 0–100 scale45.4 / 100
0406080100WideNarrowShallowNo moatJul 17, 2026

Score history begins Jul 17, 2026 — the record builds from here and can’t be backfilled.

Tier changesSame-methodology crossings of the Wide / Narrow / Shallow bars

None yet — ATO has read Shallow moat for every logged capture since Jul 17, 2026.

Scores are logged append-only and never overwritten — this record can’t be backfilled, which is exactly why it’s worth keeping.

Utilities context

#10 of 48 scored Utilities companies, ranked by Moat Score.

Nearest peers by Moat Score

  1. #8AWR American States Water Co54.3 out of 100, Shallow moatShallow moat
  2. #9WELPP WISCONSIN ELECTRIC POWER COMPANY47.8 out of 100, Shallow moatShallow moat
  3. #11CWEN Clearway Energy, Inc.44.5 out of 100, Shallow moatShallow moat
  4. #12WCN WASTE CONNECTIONS, INC.44.4 out of 100, Shallow moatShallow moat

Compare ATO with its nearest peersAll Utilities companies on the Index →

Common questions about ATO

Does ATMOS ENERGY CORP have an economic moat?
Based on its FY2025 SEC filings, the Moat Index scores ATMOS ENERGY CORP (ATO) 45.4 out of 100 — a Shallow moat. The four filters behind that score (each 0–100): pricing power 94, returns on capital 4, balance-sheet safety 20, capital discipline 60.
Is ATO stock trading below its intrinsic value?
Against a deliberately conservative owner-earnings model (9% discount rate, 4% assumed growth, capped at 4%), estimated intrinsic value is $98.69 per share versus a recent price of $177.68 — 80% above value. This is an educational estimate computed from primary SEC filings, not investment advice.
How has ATO's Moat Score changed over time?
The record logs 3 readings since Jul 17, 2026; the latest reads 45.4 out of 100 (shallow moat). No tier changes on record yet. The history is append-only — readings are only ever added, never rewritten.
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ATMOS ENERGY CORP (ATO) Moat Score — The Moat Index · Buy Like Buffett