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Atmos Energy Corporation (ATO)
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The market capitalization for Atmos Energy Corporation (ATO) is $28.46 Billion, making it a Large Cap company. Market cap is calculated by multiplying the current stock price by the total number of shares outstanding.

Market Capitalization

$28.46B

$28.46 Billion

Calculation

Stock Price
$169.27
Shares Outstanding
168.13M
Market Cap
$28.46B

Market Cap = Price × Shares Outstanding

Size Classification

Large Cap

$10B - $1T

Companies with market capitalization between $10 billion and $1 trillion.

Market Cap Size Scale

Micro Cap

<$250M

Small Cap

$250M-$2B

Mid Cap

$2B-$10B

Large Cap

$10B-$1T

Mega Cap

>$1T

ATO Market Cap: $28.46 Billion

Related Valuation Metrics

Key Statistics

Market Cap$28.46 Billion
Stock Price$169.27
Shares Outstanding168.13M
Size CategoryLarge Cap
P/E Ratio20.96
P/B Ratio1.92
Data as of Thursday, June 11, 2026

About Atmos Energy Corporation

Atmos Energy Corporation, alongside its subsidiaries, is a U.S.-based enterprise primarily involved in the regulated distribution of natural gas, as well as operating pipeline and storage facilities. The company functions through two core divisions: Distribution, and Pipeline and Storage. The Distribution division manages the regulated delivery and associated sales of natural gas across eight states. This division supplies natural gas to approximately three million customers, encompassing homeowners, businesses, public agencies, and industrial clients. By September 30, 2021, its extensive infrastructure comprised 71,921 miles of subterranean distribution and transmission lines. Conversely, the Pipeline and Storage division focuses on pipeline and storage activities. It is responsible for transporting natural gas on behalf of other entities and oversees five underground storage facilities located in Texas. Additionally, it offers various support services to the pipeline sector, such as gas parking, lending, and inventory transactions. As of September 30, 2021, this division maintained a network of 5,699 miles of gas transmission lines. Established in 1906, Atmos Energy Corporation maintains its principal office in Dallas, Texas.

Dallas, TX
5,260 employees
Utilities / Regulated Gas
Sector
Utilities
Industry
Regulated Gas
CEO
John Kevin Akers