Is ATO or EXC cheaper?

On trailing earnings, EXC is cheaper: ATO trades at a 20.91 P/E and EXC at 16.86.

Which has grown faster, ATO or EXC?

Over the past five years, ATO grew revenue faster — ATO at a 8.80% CAGR versus EXC at -3.04%.

Does ATO or EXC pay a bigger dividend?

ATO yields 2.28% and EXC yields 3.55% based on trailing dividends and the latest price.

Is ATO or EXC more profitable?

ATO runs the higher net margin — ATO at 27.58% versus EXC at 11.21%.

Which has been the better investment, ATO or EXC?

Over the past 10-year, ATO delivered the higher annualized total return — ATO at 10.97% versus EXC at 10.28%. Past performance doesn't predict future results.

Atmos Energy Corporation (ATO) vs Exelon Corporation (EXC)

ATO and EXC are evenly matched — 8 metrics each of 16.

A side-by-side comparison of Atmos Energy Corporation and Exelon Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 14, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

ATO

Atmos Energy Corporation

Total return — ATO vs EXC

growth of $100 · last 30y

ATO +590.1%EXC +443.0%ATO compounded faster

ATO EXC

ATO vs EXC: by the numbers

•EXC is the larger company ($47.28B vs $28.37B market cap).
•EXC trades at the lower earnings multiple (16.86 vs 20.91 P/E).
•ATO converts more revenue to profit (27.58% vs 11.21% net margin).
•ATO grew revenue faster over the past five years (8.80% vs -3.04% CAGR).
•EXC pays the higher dividend yield (3.55% vs 2.28%).

Which is better, ATO or EXC?

Metric tally: ATO 8 · EXC 8

It depends on what you're optimizing for:

ValueEXC(lower P/E)

GrowthATO(faster 5Y revenue CAGR)

IncomeEXC(higher dividend yield)

QualityATO(higher ROIC)

Valuation

Metric	ATO	EXC
P/E ratio	20.91	16.86●
Forward P/E	18.97	15.25●
P/S ratio	5.84	1.91●
P/B ratio	1.91	1.62●
PEG ratio	2.18	1.35●
EV / EBITDA	14.73	10.94●

Profitability

Metric	ATO	EXC
Gross margin	51.43%●	24.11%
Operating margin	35.87%●	21.03%
Net margin	27.58%●	11.21%
ROE	9.03%	9.48%●
ROIC	4.58%●	3.97%

Dividends

Metric	ATO	EXC
Dividend yield	2.28%	3.55%●
Payout ratio	51.33%	59.85%

Growth (annualized)

Metric	ATO	EXC
Revenue CAGR (5Y)	8.80%●	-3.04%
EPS CAGR (5Y)	9.05%●	6.39%
FCF CAGR (5Y)	19.32%●	-48.16%
Total return CAGR (5Y)	13.57%●	10.50%

Frequently asked

Which is better, ATO or EXC?: It depends on your goal. value: EXC (lower P/E); growth: ATO (faster 5Y revenue CAGR); income: EXC (higher dividend yield); quality: ATO (higher ROIC). Across all compared metrics, they are evenly matched.
Is ATO or EXC cheaper?: On trailing earnings, EXC is cheaper: ATO trades at a 20.91 P/E and EXC at 16.86.
Which has grown faster, ATO or EXC?: Over the past five years, ATO grew revenue faster — ATO at a 8.80% CAGR versus EXC at -3.04%.
Does ATO or EXC pay a bigger dividend?: ATO yields 2.28% and EXC yields 3.55% based on trailing dividends and the latest price.
Is ATO or EXC more profitable?: ATO runs the higher net margin — ATO at 27.58% versus EXC at 11.21%.
Which has been the better investment, ATO or EXC?: Over the past 10-year, ATO delivered the higher annualized total return — ATO at 10.97% versus EXC at 10.28%. Past performance doesn't predict future results.

Go deeper

Full ATO analysis Full EXC analysis Interactive comparison tool

Dig into the metrics

Atmos Energy P/E ratio Exelon P/E ratio Atmos Energy dividend yield Exelon dividend yield Atmos Energy ROE Exelon ROE Atmos Energy operating margin Exelon operating margin Atmos Energy revenue growth Exelon revenue growth Atmos Energy free cash flow Exelon free cash flow

Atmos Energy & Exelon appear in these rankings

Highest Dividend Yield Stocks Dividend Aristocrats Highest Operating Margin Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified June 14, 2026.