Latest revenue
$1.96B
as of 2026-03-31
Latest net income
$581.9M
as of 2026-03-31
Net margin
29.7%
as of 2026-03-31
Price · 5Y
Live market
delayed ≤15 min- Market cap
- $29.68B
- Enterprise value
- $38.87B
- P/E (trailing)
- 24.8×
- Forward P/E
- —
- P/B
- 2.08×
- Dividend yield
- 2.1%
- 52-wk high
- $192.51
- 52-wk low
- $149.97
- Beta
- —
- Shares out
- 166.9M
5-year trend
About ATO
Business description and risk factors will appear here once ATO's latest filing is fully ingested.
Profitability
Operating margin
33.2%
1.9%Net margin
25.5%
1.8%Return on equity
8.8%
3.1%Return on assets
4.2%
2.5%Leverage
Debt / equity
1.08×
1.0%Long-term debt / equity
0.66×
2.6%Debt / assets
52.0%
0.5%Earnings tracker
| Quarter | Revenue | YoY | Net income | YoY | Net margin |
|---|---|---|---|---|---|
Q1 2026 2026-03-31 | $1.96B | +0.6% | $581.9M | +19.8% | 29.7% |
Q4 2025 2025-12-31 | $1.34B | +14.2% | $403.0M | +14.5% | 30.0% |
Q3 2025 2025-09-30 | $737.5M | +12.1% | $174.9M | +30.5% | 23.7% |
Q2 2025 2025-06-30 | $838.8M | +19.6% | $186.4M | +12.6% | 22.2% |
Q1 2025 2025-03-31 | $1.95B | +18.4% | $485.6M | +12.4% | 24.9% |
Q4 2024 2024-12-31 | $1.18B | +1.5% | $351.9M | +13.0% | 29.9% |
Q3 2024 2024-09-30 | $657.9M | — | $134.0M | — | 20.4% |
Q2 2024 2024-06-30 | $701.5M | +5.9% | $165.6M | +20.1% | 23.6% |
Year-over-year change vs the same fiscal quarter one year prior. Revenue + net income sourced from SEC 10-Q / 10-K filings — no analyst-consensus dependency.
Industry trend
Natural Gas Distribution · SIC 4924
Your notes
Keep private notes on ATO — thesis, target price, catalysts to watch.
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Insider activity
Insider buying
$0
Insider selling
$77.0K
Net activity
−$77.0K
Distinct insiders
1
Open-market trades over the last 365 days.
Recent transactions
| Date | Insider | Type | Shares | Price | Value |
|---|
Source: SEC Form 4 filings. Officers, directors, and 10%+ owners must disclose share transactions within two business days. RSU grants and tax-withholding rows are excluded by default — compensation activity is not a trading signal.
Who owns ATO
Institutional value
$16.35B
Total shares held
89.6M
Distinct holders
713
As of
2026-03-31
Filers with $100M+ AUM disclose holdings 45 days after quarter end.
Top institutional holders
| # | Manager | Shares | Value | QoQ change | Action |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 17.5M | $3.22B | — | New |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 10.7M | $1.98B | — | New |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 9.3M | $1.72B | — | New |
| 4 | Capital International Investors | 7.3M | $1.35B | — | New |
| 5 | Capital Research Global Investors | 4.0M | $740.8M | — | New |
| 6 | Invesco Ltd. | 3.0M | $555.5M | — | New |
| 7 | DEUTSCHE BANK AG\ | 2.5M | $470.5M | — | New |
| 8 | Legal & General Group Plc | 1.6M | $298.6M | — | New |
| 9 | WELLS FARGO & COMPANY/MN | 1.3M | $245.6M | — | New |
| 10 | Perpetual Ltd | 1.2M | $229.1M | — | New |
| 11 | Pictet Asset Management Holding SA | 1.2M | $217.1M | — | New |
| 12 | SFMG, LLC | 1.1M | $195.5M | — | New |
| 13 | ProShare Advisors LLC | 1.0M | $189.1M | — | New |
| 14 | Nuveen, LLC | 947.5K | $175.0M | — | New |
| 15 | VANGUARD FIDUCIARY TRUST CO | 930.6K | $171.9M | — | New |
| 16 | Bank of New York Mellon Corp | 892.7K | $164.9M | — | New |
| 17 | GQG Partners LLC | 887.2K | $163.9M | — | New |
| 18 | BNP PARIBAS FINANCIAL MARKETS | 834.7K | $154.2M | — | New |
| 19 | PNC Financial Services Group, Inc. | 833.5K | $154.0M | — | New |
| 20 | HSBC HOLDINGS PLC | 780.2K | $144.1M | — | New |
Source: SEC Form 13F-HR. Positions aggregated across sub-managers within each firm. Options (puts/calls) excluded — common stock only.
Top questions investors are asking
Coming once ATO's latest filing finishes processing.