ATOAtmos Energy Corporation

CSNew York Stock Exchange (XNYS)·USD

Identity

Security key: 12028
Ticker: ATO
Type: CS — Common Stock
Exchange: New York Stock Exchange(XNYS)
Venue group: NYSE
Operating MIC: XNYS
Market: stocks
Locale: us
Currency: USD
Listed: 1983-12-28
Round lot: 100
Active: Yes
Last seen in a load: 2026-08-14 20:49
Vendor updated: 2026-08-13 06:09
Ticker root / suffix: ATO

Detail

Enriched 2026-08-14 20:47

Market cap: $28,658,768,703.27
Shares outstanding (class): 168,988,553
Shares outstanding (weighted): 168,988,553
SIC: 4924 NATURAL GAS DISTRIBUTION
Employees: 5,487
Location: DALLAS, TX
Homepage: https://www.atmosenergy.com
Description: Atmos Energy is the largest publicly traded, fully regulated, pure-play natural gas utility in the United States, serving more than 3.3 million customers in Texas, Colorado, Kansas, Kentucky, Louisiana, Mississippi, Tennessee, and Virginia. About two thirds of its earnings come from Texas, where it distributes natural gas in northern Texas and owns an intrastate gas pipeline spanning several key shale gas formations and interconnected with five storage facilities.

Market cap and share counts drift.

Funds holding this security

350 funds · 360 positions · $8.29B reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$970.29M	0.05%	5,252,760 NS	FIGI
VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS	VOO	$776.95M	0.05%	4,206,102 NS	FIGI
VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS	VB	$704.66M	0.43%	3,814,741 NS	FIGI
American Funds Fundamental Investors American Funds Fundamental Investors	—	$563.84M	0.37%	3,052,381 NS	FIGI
State Street(R) Utilities Select Sector SPDR(R)… SELECT SECTOR SPDR TRUST	XLU	$524.27M	2.15%	2,838,179 NS	FIGI
VANGUARD EQUITY INCOME FUND VANGUARD FENWAY FUNDS	—	$449.65M	0.72%	2,434,226 NS	FIGI
VANGUARD SMALL-CAP VALUE INDEX FUND VANGUARD INDEX FUNDS	VBR	$448.72M	0.74%	2,429,165 NS	FIGI
iShares Core S&P 500 ETF iShares Trust	IVV	$392.93M	0.05%	2,127,153 NS	FIGI
N/A —	—	$356.05M	0.05%	1,927,490 NS	FIGI
Investment Co of America Investment Co of America	—	$243.08M	0.15%	1,315,930 NS	FIGI
State Street(R) SPDR(R) S&P(R) Dividend ETF SPDR SERIES TRUST	SDY	$230.20M	1.11%	1,246,231 NS	FIGI
T. Rowe Price Dividend Growth Fund, Inc. T. ROWE PRICE DIVIDEND GROWTH FUND, INC.	—	$216.90M	0.96%	1,174,199 NS	FIGI
VANGUARD WELLESLEY INCOME FUND VANGUARD WELLESLEY INCOME FUND	—	$189.33M	0.40%	1,024,942 NS	FIGI
VANGUARD INSTITUTIONAL INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS	—	$172.30M	0.05%	932,782 NS	FIGI
MFS Mid Cap Value Fund MFS SERIES TRUST XI	—	$122.05M	0.76%	660,735 NS	FIGI

How positions resolve to the securities master. FIGI_COMPOSITE is exact identifier equality — both sides got the FIGI from Bloomberg. TICKER is a narrow fallback used only where the master row carries no FIGI at all (2,389 rows do not, disproportionately Irish-domiciled US listings like LIN and ACN). Roughly 22% of all positions resolve to the master.

Funds holding this security

Identifiers

master.security_identifier

TICKERATO
FIGI_COMPOSITEBBG000BRNGM2
FIGI_SHARE_CLASSBBG001S5VG05
CIK0000731802
ISINUS0495601058
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Utilities
Industry: Gas Utilities
Source: LLMunreviewed
Self-reported confidence: 0.95
Model: deepseek
Rationale: Atmos Energy is a natural gas distribution utility, fitting the gas utilities industry under the utilities sector.

Classifications are unreviewed model output. All 5,771 assignments carry source = LLM and is_reviewed = false. Confidence is the model’s own estimate and is not calibrated — it clustered at 0.90–0.98 across the whole first pass, including rows that later proved wrong. Use it to order a review queue, not as a probability. Two share classes of one issuer can disagree.

Classification

Fund data

Not linked to a fund series.

Either this is not a fund, or it is one the SEC share-class snapshot cannot reach — commodity trusts and notes have no series ID at all.