What is the 13F Pro Quality Score for ATO?

13F Pro ranks ATMOS ENERGY CORP (ATO) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View ATO's current score at https://13fpro.ai/company/ATO (free sign-up required for the full ranking).

Which hedge funds own the most ATO stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of ATO include BlackRock,, STATE STREET, VANGUARD CAPITAL MANAGEMENT. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/company/ATO as soon as new 13F filings post.

Where does 13F Pro source ATO data?

All ATMOS ENERGY CORP fundamentals and ownership data come directly from SEC EDGAR. ATMOS ENERGY CORP files with the SEC under CIK 731802. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is ATO in?

ATMOS ENERGY CORP (ATO) is classified in the Energy sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/energy.

What drives ATO's revenue?

Per ATMOS ENERGY CORP's latest 10-Q filed with the SEC on 2026-08-05, the biggest revenue drivers are: Distribution segment ($774.7M, +1% YoY). Figures are extracted from the filing text and machine-verified against the document. Full breakdown at https://13fpro.ai/company/ATO.

How often is ATO research updated on 13F Pro?

ATO's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

ATMOS ENERGY CORP(ATO)Stock Analysis

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SEC EDGAR: CIK 731802 ATO stock profile & AI dashboard →

13F Pro Quality Score

57.6/100

Rank #1,079 of 2,961 stocksTOP 50%

View Energy peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Nov 14, 2026.

Revenue Growth

55.5/100

Profitability

90.2/100

Balance Sheet

68.8/100

Earnings Quality

27.0/100

Free Cash Flow

10.2/100

Institutional Flow

52.0/100

Revenue Scale

77.6/100

Dilution Risk

83.4/100

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Why ATO Scores 58/100

exact factor attribution · 2026-09-11

ATO's composite is driven by profitability and scale, held back by free cash flow and earnings quality. Bars show each factor's exact push vs. a median company, using the same weights the ranking engine applies.

Profitability

+6.0 pts

90th pct

Scale

+4.1 pts

78th pct

Capital efficiency

+1.9 pts

69th pct

Shareholder dilution

+1.7 pts

83th pct

Revenue growth

+1.1 pts

56th pct

Earnings growth

+0.9 pts

69th pct

Institutional flow

+0.1 pts

52th pct

Earnings quality

-2.3 pts

27th pct

Free cash flow

-6.0 pts

10th pct

Latest change (2026-08-05): 72 → 62 · ↓ Revenue growth 83→50; ↓ Earnings growth 76→55

Factor percentiles are cross-sectional ranks across the ~2,800-stock scored universe, computed from SEC EDGAR filings. Not investment advice.

Unusual Activity in ATO

Events flagged as statistical outliers against ATO's own multi-year baseline — not fixed dollar thresholds.

Score shock2026-08-05
ATO quality score dropped 10 points (72→62) on a new filing
View source filing →

ATO Stock Analysis & AI Quality Score

Data updated 2026-09-11

AI stock analysis and institutional research for ATMOS ENERGY CORP (ATO), a Energy sector company. 13F Pro's AI-powered ranking engine scores ATO at 57.6/100 on a 32-signal composite quality model, placing it at rank #1,079 of 2,961 stocks — the top half of the AI-ranked universe. ATO scores in the top quartile across profitability (90.2), revenue scale (77.6). Areas of concern include free cash flow (10.2) and earnings quality (27.0), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q2 2026), ATMOS ENERGY CORP reports quarterly revenue of $879.1M, net income of $242.7M, an operating margin of 36.4%. Top institutional holders of ATO by reported 13-F value include BlackRock, STATE STREET, VANGUARD CAPITAL MANAGEMENT, based on the most recent SEC filings. ATO trades on the NYSE exchange and files with the SEC under CIK 731802. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate ATO daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for ATMOS ENERGY CORP directly from SEC EDGAR. ATMOS ENERGY CORP's 13F Pro composite quality score has ranged between 50 and 73 since 2021, currently 57.6 — an improving long-term trajectory across 68 quarterly and live scoring snapshots.

✦

Fun facts about ATMOS ENERGY CORP

Quirks, history, and lore behind ATO — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. utility company · large-cap · listed on NYSE · headquartered in Texas.
2
The Numbers
Serves roughly 3 million customers across more than a dozen states, with annual revenue in the range of $3–4 billion — quietly enormous for a company most people have never heard of.
3
The History
Traces its roots back to the early 20th century and grew through decades of acquisitions into one of the largest pure-play natural gas distributors in the United States.
4
The Secret
It doesn't generate electricity or drill for fuel — it is purely in the business of moving and distributing natural gas through pipelines to homes and businesses, making it a rare single-commodity utility.
5
The Lore
It's a darling of dividend investors, having raised its dividend for over 35 consecutive years — the kind of streak that gets you inducted into the Dividend Aristocrats club.
6
The Giveaway
Its ticker is the Greek word for air, its name literally means atmospheric energy, and it keeps the gas flowing in states from Texas to Mississippi — one molecule at a time.

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What's Driving ATO's Business? Latest 10-Q Breakdown

AI-extracted from ATMOS ENERGY CORP's 10-Q filed 2026-08-05 — Q3 FY2026 (quarter ended June 30, 2026). Every figure is machine-verified against the filing text on SEC EDGAR.

Atmos Energy grew Q3 FY2026 revenue 5% YoY to $879.1M while net income jumped 30% to $242.7M, as GRIP/formula rate increases and a Texas infrastructure-legislation benefit drove operating income up 27%, partly offset by higher depreciation and property taxes from continued capital spending.

Biggest Revenue Drivers

Distribution segment$774.7M+1% YoY

Revenue grew modestly as rate adjustments, mainly in Mid-Tex, were largely offset by lower consolidated sales volumes.

Biggest Revenue Drivers

Total revenue: $879.1M+4.8% YoY

Distribution segment$774.7M+1% YoY

Revenue grew modestly as rate adjustments, mainly in Mid-Tex, were largely offset by lower consolidated sales volumes.

Largest Expense Items

Operation and maintenance expense$223.2M+0.5% YoY

Higher employee-related costs from increased headcount and labor to support company growth, plus increased system monitoring and compliance activities.

Depreciation and amortization expense$201.5M+8.5% YoY

Driven by increased depreciation associated with continued capital investment in distribution and pipeline infrastructure.

Taxes, other than income$125.7M+0.6% YoY

Includes property taxes tied to higher capital investment and franchise/gross receipts taxes linked to gas costs and sales volumes.

Watch Items from the Filing

NTSB is investigating a May 28, 2026 Dallas, Texas pipeline incident that caused three fatalities (preliminary report issued July 1, 2026), following final reports on fatal 2024 incidents in Jackson, Mississippi and Avondale, Louisiana.
Company plans ~$26 billion of capital spending between fiscal 2026-2030, with over 80% for safety/reliability; full cost recovery through rates is not assured.
Pending rate proceedings seek $373.4 million in additional annual operating income, with $273.2 million concentrated in the Mid-Tex Cities Formula Rate Mechanism alone.
Mid-Tex division generated $74.3 million of the distribution segment's $109.1 million operating income (68%) in the quarter, underscoring heavy Texas geographic concentration.

AI-extracted and verified against SEC EDGAR filing text. Not investment advice.

Read the full 10-Q on SEC EDGAR →Share on X

Revenue

Q2 2026

$879.1M

Net Income

Q2 2026

$242.7M

Free Cash Flow

Q2 2026

$-399.4M

Operating Margin

Q2 2026

36.4%

ROIC

Q2 2026

5.0%

D/E Ratio

Q2 2026

0.67

Period

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro

Revenue

+12.9% YoY

$4.70BFY 2025

FY22 $4.20BFY23 $4.28BFY24 $4.17BFY25 $4.70B

Net Income

+14.9% YoY

$1.20BFY 2025

FY22 $774.4MFY23 $885.9MFY24 $1.04BFY25 $1.20B

Operating Income

+15.1% YoY

$1.56BFY 2025

FY22 $921.0MFY23 $1.07BFY24 $1.36BFY25 $1.56B

EPS (Diluted)

+9.2% YoY

$7.46FY 2025

FY22 $5.60FY23 $6.10FY24 $6.83FY25 $7.46

Total Assets

+12.1% YoY

$28.25BFY 2025

FY22 $22.19BFY23 $22.52BFY24 $25.19BFY25 $28.25B

Total Debt

+14.6% YoY

$8.92BFY 2025

FY22 $8.15BFY23 $6.80BFY24 $7.79BFY25 $8.92B

Op. Cash Flow

+18.2% YoY

$2.05BFY 2025

FY22 $977.6MFY23 $3.46BFY24 $1.73BFY25 $2.05B

Free Cash Flow

-25.6% YoY

$-1.51BFY 2025

FY22 $-1.47BFY23 $653.8MFY24 $-1.20BFY25 $-1.51B

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$4.70B +12.9%	$4.17B -2.6%	$4.28B +1.8%	$4.20B +23.3%	$3.41B +20.8%	$2.82B
Net Income	$1.20B +14.9%	$1.04B +17.7%	$885.9M +14.4%	$774.4M +16.4%	$665.6M +10.7%	$601.4M
Operating Income	$1.56B +15.1%	$1.36B +27.0%	$1.07B +15.9%	$921.0M +1.8%	$905.0M +9.8%	$824.1M
EPS (Diluted)	$7.46 +9.2%	$6.83 +12.0%	$6.10 +8.9%	$5.60 +9.4%	$5.12 +4.7%	$4.89
Total Assets	$28.25B +12.1%	$25.19B +11.9%	$22.52B +1.5%	$22.19B +13.2%	$19.61B +27.7%	$15.36B
Total Debt	$8.92B +14.6%	$7.79B +14.5%	$6.80B -16.6%	$8.15B +11.1%	$7.33B +61.8%	$4.53B
Operating Cash Flow	$2.05B +18.2%	$1.73B -49.9%	$3.46B +253.9%	$977.6M +190.2%	$-1.08B -204.5%	$1.04B
Free Cash Flow	$-1.51B -25.6%	$-1.20B -284.1%	$653.8M +144.6%	$-1.47B +52.0%	$-3.05B -240.2%	$-897.7M

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Available Research

13F Pro tracks comprehensive data for ATMOS ENERGY CORP including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of ATO

BlackRock, Inc.
$2.6B15,237,564 sh
STATE STREET CORP
$2.0B11,380,060 sh
VANGUARD CAPITAL MANAGEMENT LLC
$1.9B10,885,153 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$1.6B9,360,135 sh
WELLINGTON MANAGEMENT GROUP LLP
$1.6B9,185,788 sh
Capital International Investors
$1.3B7,483,012 sh
GEODE CAPITAL MANAGEMENT, LLC
$770.3M4,489,277 sh
BANK OF AMERICA CORP /DE/
$720.2M4,180,718 sh
Invesco Ltd.
$546.7M3,173,775 sh
MORGAN STANLEY
$493.3M2,863,719 sh

Fund	Value	Shares
BlackRock, Inc.	$2.6B	15,237,564
STATE STREET CORP	$2.0B	11,380,060
VANGUARD CAPITAL MANAGEMENT LLC	$1.9B	10,885,153
VANGUARD PORTFOLIO MANAGEMENT LLC	$1.6B	9,360,135
WELLINGTON MANAGEMENT GROUP LLP	$1.6B	9,185,788
Capital International Investors	$1.3B	7,483,012
GEODE CAPITAL MANAGEMENT, LLC	$770.3M	4,489,277
BANK OF AMERICA CORP /DE/	$720.2M	4,180,718
Invesco Ltd.	$546.7M	3,173,775
MORGAN STANLEY	$493.3M	2,863,719

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Is ATO a good stock to buy?

13F Pro's AI-powered analysis of ATMOS ENERGY CORP (ATO) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Energy sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for ATO are available on the ATO stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing. ATO is classified as a large company.

Which hedge funds own ATO?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling ATO. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of ATMOS ENERGY CORP's investment landscape.