Atmos Energy Corporation (ATO)
Atmos Energy Corporation at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.
Atmos Energy Corporation (ATO) is a Regulated Gas company based in US with a market capitalization of $28.5B. Revenue grew 12.9% year-over-year and free cash flow was negative at -$1.5B. This page tracks ATO's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.
US · 5.26K employees · IPO Dec 28, 1983
Valuation
Valuation & price
$176.48as of May 17, 2026· -8.2% vs 52w high
23.6
P/E ratio
Latest-FY diluted EPS
2.10
P/B ratio
Market cap ÷ book equity
—
Dividend yield
Price — last 12 months
Fundamentals
Key fundamentals
$28.5B
Market cap
12.9%
Revenue growth (YoY)
52.4%
Gross margin
-$1.5B
Free cash flow (USD)
$9.1B
Net debt
4.2%
Share dilution
3/5
Graham criteria passed
Defensive-investor screen
Utilities
Sector
Trajectory
Long-term trends
Revenue by year
2016 → 2025
Free cash flow by year
2016 → 2025
Gross margin by year
2021 → 2025
Value screen
Graham defensive-investor tests
0
Insider buys · 90 days
0
Insider sells · 90 days
Earnings
Last report: 10-Q filed May 6, 2026
Next expected: not yet scheduled
On the tape
Recent SEC & insider activity
Questions
Frequently asked questions
What is Atmos Energy Corporation's market cap?
Atmos Energy Corporation (ATO) has a market capitalization of $28.5B.
What is ATO's P/E ratio?
ATO trades at a price-to-earnings ratio of 23.6, based on its latest fiscal-year diluted earnings per share and the most recent cached price.
What is ATO's price-to-book (P/B) ratio?
ATO trades at 2.10 times book value per share.
Are insiders buying ATO stock?
SEC Form 4 filings show no open-market insider buys at Atmos Energy Corporation in the last 90 days (0 sells).
Same arena
Related companies in Regulated Gas
Timeline
Every filing, insider trade & earnings on a price-anchored timeline
Filing Analyzer
Search the actual 10-K / 10-Q text with AI research angles
News
Latest press coverage in one feed
Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.