Large Cap Gas Utilities
Stocks Ranked by
Market Capitalization
| Name | Market cap | Price |
Price change % |
|
|---|---|---|---|---|
1
Atmos Energy
ATO
$28.3B
| $28.3B | $167.34 | 2.07% |
|
2
NiSource
NI
$20.5B
| $20.5B | $42.68 | 3.47% |
|
Large Cap Gas Utilities Stocks at a Glance
Gas utilities transmit, store, and distribute natural gas to homes and businesses. Regulated rates and heating-driven, weather-influenced demand deliver dependable earnings, with pipeline replacement programs providing a visible capital-growth runway.
There are 2 large cap Gas Utilities stocks — companies in the Gas Utilities industry with a market cap between $10B and $200B — worth a combined $48.7B.
The largest by market cap are Atmos Energy (ATO) at $28.3B and NiSource (NI) at $20.5B.
Among institutional investors, Atmos Energy (ATO) drew the most net new fund positions in Q2 2026: 133 funds opened new positions, taking total fund holders up 25 (2.5%) quarter-over-quarter.
- Combined market cap: $48.7B across 2 stocks.
- Large Cap: market cap between $10B and $200B.
- Largest constituent: Atmos Energy (ATO), $28.3B market cap.
- Most net new fund positions in Q2 2026: Atmos Energy (ATO), +25 holders.
Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.