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/research/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/research/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 2026-05-06, the biggest revenue drivers are: Distribution segment ($3,136.506B, +4.8% YoY); Pipeline and storage segment ($575.922B, +11.9% YoY). Figures are extracted from the filing text and machine-verified against the document. Full breakdown at https://13fpro.ai/research/ATO.

What are ATO's largest expenses?

ATMOS ENERGY CORP's latest 10-Q reports these as the largest expense items: Purchased gas cost ($963.317M, -4.9% YoY); Depreciation and amortization expense ($390.332M, +7.4% YoY); Operation and maintenance expense ($425.600M, -3.3% YoY). Sourced directly from SEC EDGAR filing text for Q2 FY2026 (six months ended March 31, 2026).

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

AI analysis on 2,800+ stocks →Deep AI analysis on 2,800+ stocks →

Energy →NYSE

Institutional-grade research for retail investors

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

13F Pro Quality Score

72.0/100

Rank #243 of 2,879 stocksTOP 10%

View Energy peers →

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

Revenue Growth

83.2/100

Profitability

88.8/100

Balance Sheet

74.3/100

Earnings Quality

75.6/100

Free Cash Flow

13.6/100

Institutional Flow

85.1/100

Revenue Scale

81.1/100

Dilution Risk

83.5/100

ATO Stock Analysis & AI Quality Score

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 72.0/100 on a 32-signal composite quality model, placing it at rank #243 of 2,879 stocks — the top 10% of the AI-ranked universe. ATO scores in the top quartile across profitability (88.8), institutional flow (85.1), revenue growth (83.2). Areas of concern include free cash flow (13.6), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q2 2026), ATMOS ENERGY CORP reports quarterly revenue of $2.0B, net income of $581.9M, an operating margin of 39.0%. 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 8 and 73 since 2021, currently 72.0 — an improving long-term trajectory across 56 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.

▶ Think you know your stocks? Play the Daily Ticker

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

AI-extracted from ATMOS ENERGY CORP's 10-Q filed 2026-05-06 — Q2 FY2026 (six months ended March 31, 2026). Every figure is machine-verified against the filing text on SEC EDGAR.

Net income of $984.9M (+18% YoY) driven by $135.3M in implemented rate increases and $93.6M benefit from Texas infrastructure legislation, offset partly by higher depreciation.

Biggest Revenue Drivers

Total revenue: $3,304.987B+5.7% YoY

Distribution segment$3,136.506B+4.8% YoY

Rate adjustments of $130.7M, consumption growth net of WNA of $14.6M, and customer growth in Mid-Tex offset by depreciation and compliance costs.

Pipeline and storage segment$575.922B+11.9% YoY

GRIP rate adjustments of $40.6M, higher capacity contracted by tariff customers, and through-system activities from increased spreads.

Largest Expense Items

Purchased gas cost$963.317M-4.9% YoY

Lower natural gas prices; substantially recovered through purchased gas cost adjustment mechanisms.

Depreciation and amortization expense$390.332M+7.4% YoY

Increased capital investments in system safety, reliability, and modernization.

Operation and maintenance expense$425.600M-3.3% YoY

Increased compliance and system monitoring offset partially by efficiency; includes $29.0M benefit from Texas infrastructure legislation.

Margins: Operating income increased 17.6% to $1,279.6M, driven by timely rate recovery mechanisms and infrastructure spending benefits. Gross margin expanded despite higher depreciation due to rate adjustments outpacing operating cost growth, with regulatory lag minimization mechanisms reducing timing pressures.

Watch Items from the Filing

Two NTSB fatal incidents under investigation: Jackson, Mississippi (Jan 2024, final report issued Mar 2026) and Avondale, Louisiana (Dec 2024, preliminary report Dec 2024). Company cooperating with NTSB and regulators.
Operations concentrated in eight-state service area with 80%+ of pipeline segment revenue from Texas; limited geographic diversification may amplify Texas regulatory or economic risks.
Equity capitalization at 60.9% (vs 60.3% prior year); forward equity sales agreements provide $890.1M in liquidity. Ongoing equity issuances support capital plan execution.

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

$2.0B

Net Income

Q2 2026

$581.9M

Free Cash Flow

Q2 2026

$-280.1M

Operating Margin

Q2 2026

39.0%

ROIC

Q2 2026

3.1%

D/E Ratio

Q2 2026

0.64

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

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

Get alerted when ATO's score changes

Free account: watchlist tracking, the daily AI brief, and the AI screener.

Passwordless sign-in · Payments by Stripe · Auth by Clerk

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.
$3.2B17,451,963 sh
STATE STREET CORP
$2.1B11,372,750 sh
VANGUARD CAPITAL MANAGEMENT LLC
$2.0B10,735,547 sh
WELLINGTON MANAGEMENT GROUP LLP
$1.8B9,651,472 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$1.7B9,285,633 sh
Capital International Investors
$1.4B7,326,778 sh
Aristotle Capital Management, LLC
$899.0M4,866,481 sh
GEODE CAPITAL MANAGEMENT, LLC
$798.1M4,336,996 sh
BANK OF AMERICA CORP /DE/
$775.7M4,199,433 sh
Capital Research Global Investors
$740.8M4,010,550 sh

Fund	Value	Shares
BlackRock, Inc.	$3.2B	17,451,963
STATE STREET CORP	$2.1B	11,372,750
VANGUARD CAPITAL MANAGEMENT LLC	$2.0B	10,735,547
WELLINGTON MANAGEMENT GROUP LLP	$1.8B	9,651,472
VANGUARD PORTFOLIO MANAGEMENT LLC	$1.7B	9,285,633
Capital International Investors	$1.4B	7,326,778
Aristotle Capital Management, LLC	$899.0M	4,866,481
GEODE CAPITAL MANAGEMENT, LLC	$798.1M	4,336,996
BANK OF AMERICA CORP /DE/	$775.7M	4,199,433
Capital Research Global Investors	$740.8M	4,010,550

More Energy Companies

View all Energy →

ACDC

ProFrac Holding Corp.

AESI

Atlas Energy Solutions Inc.

AGIG

ABUNDIA GLOBAL IMPACT GROUP, INC.

Antero Midstream Corp

AMPY

Amplify Energy Corp.

AMR

Alpha Metallurgical Resources, Inc.

ANNA

AleAnna, Inc.

APA

APA Corp

Put ATO on your watchlist

Track score changes the day ATMOS ENERGY CORP files with the SEC, follow the hedge funds that own it, screen 2,800+ AI-scored stocks, and get the daily brief — free.

View Pricing

Free tier includes 13F data, economic indicators, and market overview. Pro starts at $6.67/mo (billed annually).

Passwordless sign-in · Payments by Stripe · Auth by Clerk

Popular Research

AAPL

Apple

MSFT

Microsoft

NVDA

NVIDIA

GOOG

Alphabet

AMZN

Amazon

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.

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.