ATO vs. ES: Atmos Energy vs. Eversource Energy Stock Comparison

November 11, 2026

How do Atmos Energy (ATO) and Eversource Energy (ES) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

Atmos Energy (ATO) and Eversource Energy (ES) both fall under the Utilities industry group, but ATO is classified in Gas Utilities while ES is classified in Electric Utilities.

Company profile comparison for Atmos Energy (ATO) and Eversource Energy (ES)
Profile Item	ATO	ES
Name	Atmos Energy Corporation	Eversource Energy
Country/Region	United States	United States
GICS Sector	Utilities	Utilities
GICS Industry Group	Utilities	Utilities
GICS Industry	Gas Utilities	Electric Utilities
GICS Sub-Industry	Gas Utilities	Electric Utilities
Market Capitalization	29.27 billion USD	26.31 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	December 28, 1983	February 21, 1973
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

ATO

GSPC

Atmos Energy (ATO) vs. Eversource Energy (ES), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for Atmos Energy (ATO) and Eversource Energy (ES). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for Atmos Energy (ATO) and Eversource Energy (ES). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Atmos Energy (ATO) and Eversource Energy (ES)
Metric	ATO	ES
Total Return (1Y)	0.43%	0.35%
Total Return (3Y, Annualized)	18.83%	14.06%
Total Return (5Y, Annualized)	16.10%	0.61%

Risk Profile

Drawdown History

ATO

GSPC

Atmos Energy (ATO) vs. Eversource Energy (ES), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for Atmos Energy (ATO) and Eversource Energy (ES). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for Atmos Energy (ATO) and Eversource Energy (ES)
Metric	ATO	ES
Volatility (1Y, Annualized)	16.06%	24.60%
Beta (5Y)	0.55	0.65
Max Drawdown (5Y)	-19.08%	-41.69%
Avg. Volume (3M)	1.03M	2.53M

Risk-Adjusted Performance

Risk-Return Positioning

ATO and ES are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for Atmos Energy (ATO) and Eversource Energy (ES)
Metric	ATO	ES
Sharpe Ratio (1Y)	-0.24	-0.16
Sortino Ratio (1Y)	-0.34	-0.20

Profitability

ROE (TTM)

Capital efficiency shows on one side only: Atmos Energy (ATO) earns 9.79% on shareholders’ equity, ranked against its industry; Eversource Energy (ES) has no ROE this period.

ATO

Utilities industry group

9.79%

Max: 17.99%
Q3: 12.01%
ATO: 9.79%
Median: 9.44%
Q1: 7.56%
Min: 2.17%

ES

Utilities industry group

Max: 17.99%
Q3: 12.01%
Median: 9.44%
Q1: 7.56%
Min: 2.17%
ES: --

Atmos Energy (ATO) vs. Eversource Energy (ES): ES does not report ROE, so it has no value marker; ATO is benchmarked against the Utilities industry group.

Net Margin (TTM)

Atmos Energy (ATO) at 28.50% retains a top-quartile share of revenue as profit, ahead of Eversource Energy (ES) at 10.38%, which keeps about the industry-typical share.

ATO

Utilities industry group

28.50%

Max: 28.78%
ATO: 28.50%
Q3: 17.30%
Median: 12.73%
Q1: 9.18%
Min: -0.20%

ES

Utilities industry group

10.38%

Max: 28.78%
Q3: 17.30%
Median: 12.73%
ES: 10.38%
Q1: 9.18%
Min: -0.20%

Atmos Energy (ATO) vs. Eversource Energy (ES): A comparison of their net margin against the Utilities industry group benchmark.

Operating Margin (TTM)

Atmos Energy (ATO) at 37.22% operates in the top operating margin quartile, ahead of Eversource Energy (ES) at 21.14%, which runs around its industry’s norm.

ATO

Utilities industry group

37.22%

Max: 53.83%
ATO: 37.22%
Q3: 31.12%
Median: 23.62%
Q1: 15.45%
Min: -4.90%

ES

Utilities industry group

21.14%

Max: 53.83%
Q3: 31.12%
Median: 23.62%
ES: 21.14%
Q1: 15.45%
Min: -4.90%

Atmos Energy (ATO) vs. Eversource Energy (ES): A comparison of their operating margin against the Utilities industry group benchmark.

Profitability Metrics

Profitability metrics for Atmos Energy (ATO) and Eversource Energy (ES)
Metric	ATO	ES
ROE (TTM)	9.79%	--
ROA (TTM)	3.89%	--
Net Margin (TTM)	28.50%	10.38%
Operating Margin (TTM)	37.22%	21.14%
Gross Margin (TTM)	62.21%	51.63%

Growth

Revenue Growth

Eversource Energy (ES) at 13.83% sits in the top revenue growth quartile, while Atmos Energy (ATO) at 12.91% is closer to the peer norm — faster top-line expansion for ES.

Atmos Energy (ATO) vs. Eversource Energy (ES): A comparison of their Revenue Growth across different time periods.

EPS Growth

Eversource Energy (ES) at 100.88% clears its industry range for EPS growth, a much stronger earnings trajectory than Atmos Energy (ATO) at 9.22%, which is closer to a typical peer reading.

Atmos Energy (ATO) vs. Eversource Energy (ES): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Atmos Energy (ATO) and Eversource Energy (ES)
Metric	ATO	ES
Revenue Growth (YoY)	12.91%	13.83%
Revenue Growth (3Y CAGR)	3.83%	3.30%
EPS Growth (YoY)	9.22%	100.88%
EPS Growth (3Y CAGR)	10.03%	4.03%

Financial Strength

Current Ratio (MRQ)

Short-term liquidity can only be read on one side of this pairing: Atmos Energy (ATO) shows current ratio of 0.81 against its industry benchmark, while Eversource Energy (ES) has no reading this period.

ATO

Utilities industry group

0.81

Max: 1.90
Q3: 1.17
Median: 0.88
ATO: 0.81
Q1: 0.66
Min: 0.29

ES

Utilities industry group

Max: 1.90
Q3: 1.17
Median: 0.88
Q1: 0.66
Min: 0.29
ES: --

Atmos Energy (ATO) vs. Eversource Energy (ES): ES does not report current ratio, so it has no value marker; ATO is benchmarked against the Utilities industry group.

Debt / Equity (MRQ)

Atmos Energy (ATO) at 0.68 keeps leverage in the lower quartile, while Eversource Energy (ES) at 1.81 sits in the higher-leverage quartile.

ATO

Utilities industry group

0.68

Max: 2.63
Q3: 1.77
Median: 1.35
Q1: 0.84
ATO: 0.68
Min: 0.00

ES

Utilities industry group

1.81

Max: 2.63
ES: 1.81
Q3: 1.77
Median: 1.35
Q1: 0.84
Min: 0.00

Atmos Energy (ATO) vs. Eversource Energy (ES): A comparison of their debt-to-equity ratio against the Utilities industry group benchmark.

Financial Strength Metrics

Financial strength metrics for Atmos Energy (ATO) and Eversource Energy (ES)
Metric	ATO	ES
Current Ratio (MRQ)	0.81	--
Debt / Equity (MRQ)	0.68	1.81
Net Debt / EBITDA	3.74	5.73

Dividends

Dividend Yield (TTM)

Eversource Energy (ES) at 4.33% delivers top-quartile income for its industry, while Atmos Energy (ATO) at 2.21% pays a more typical yield — both are credible income propositions, ES the richer one.

ATO

Utilities industry group

2.21%

Max: 6.66%
Q3: 3.58%
Median: 2.85%
ATO: 2.21%
Q1: 0.66%
Min: 0.00%

ES

Utilities industry group

4.33%

Max: 6.66%
ES: 4.33%
Q3: 3.58%
Median: 2.85%
Q1: 0.66%
Min: 0.00%

Atmos Energy (ATO) vs. Eversource Energy (ES): A comparison of their dividend yield against the Utilities industry group benchmark.

Dividend Payout Ratio (TTM)

Atmos Energy (ATO) at 46.13% pays out a band-typical share of earnings, while Eversource Energy (ES) at 82.19% distributes more than its industry norm — less retained, thinner cover.

ATO

Utilities industry group

46.13%

Max: 113.04%
Q3: 68.72%
Median: 56.38%
ATO: 46.13%
Q1: 32.38%
Min: 0.00%

ES

Utilities industry group

82.19%

Max: 113.04%
ES: 82.19%
Q3: 68.72%
Median: 56.38%
Q1: 32.38%
Min: 0.00%

Atmos Energy (ATO) vs. Eversource Energy (ES): A comparison of their payout ratio against the Utilities industry group benchmark.

Dividend Metrics

Dividend metrics for Atmos Energy (ATO) and Eversource Energy (ES)
Metric	ATO	ES
Dividend Yield (TTM)	2.21%	4.33%
Dividend Payout Ratio (TTM)	46.13%	82.19%

Valuation

P/E Ratio (TTM)

Both Atmos Energy (ATO) at 20.65 and Eversource Energy (ES) at 18.43 land around their industries’ usual P/E ratio levels — neither is getting a clear earnings-multiple discount or premium versus peers.

ATO

Utilities industry group

20.65

Max: 31.22
Q3: 23.30
ATO: 20.65
Median: 19.64
Q1: 15.17
Min: 3.34

ES

Utilities industry group

18.43

Max: 31.22
Q3: 23.30
Median: 19.64
ES: 18.43
Q1: 15.17
Min: 3.34

Atmos Energy (ATO) vs. Eversource Energy (ES): A comparison of their P/E ratio against the Utilities industry group benchmark.

P/S Ratio (TTM)

Eversource Energy (ES) at 1.91 is priced about in line with its industry on P/S ratio, while Atmos Energy (ATO) at 5.95 sits in the pricier quartile — ATO costs more per dollar of sales.

ATO

Utilities industry group

5.95

Max: 6.35
ATO: 5.95
Q3: 3.63
Median: 2.63
Q1: 1.52
Min: 0.00

ES

Utilities industry group

1.91

Max: 6.35
Q3: 3.63
Median: 2.63
ES: 1.91
Q1: 1.52
Min: 0.00

Atmos Energy (ATO) vs. Eversource Energy (ES): A comparison of their P/S ratio against the Utilities industry group benchmark.

P/B Ratio (MRQ)

On P/B ratio, both Atmos Energy (ATO) at 1.92 and Eversource Energy (ES) at 1.61 are valued close to their industries’ norm against book — neither stands out from peers.

ATO

Utilities industry group

1.92

Max: 3.12
Q3: 2.21
ATO: 1.92
Median: 1.83
Q1: 1.46
Min: 0.34

ES

Utilities industry group

1.61

Max: 3.12
Q3: 2.21
Median: 1.83
ES: 1.61
Q1: 1.46
Min: 0.34

Atmos Energy (ATO) vs. Eversource Energy (ES): A comparison of their P/B ratio against the Utilities industry group benchmark.

Valuation Metrics

Valuation metrics for Atmos Energy (ATO) and Eversource Energy (ES)
Metric	ATO	ES
P/E Ratio (TTM)	20.65	18.43
P/S Ratio (TTM)	5.95	1.91
P/B Ratio (MRQ)	1.92	1.61
Free Cash Flow Yield (TTM)	-7.59%	--