Is AEE or ATO cheaper?

On trailing earnings, AEE is cheaper: AEE trades at a 19.87 P/E and ATO at 20.86.

Which has grown faster, AEE or ATO?

Over the past five years, ATO grew revenue faster — AEE at a 8.44% CAGR versus ATO at 8.80%.

Does AEE or ATO pay a bigger dividend?

AEE yields 2.64% and ATO yields 2.28% based on trailing dividends and the latest price.

Is AEE or ATO more profitable?

ATO runs the higher net margin — AEE at 17.17% versus ATO at 27.58%.

Which has been the better investment, AEE or ATO?

Over the past 10-year, AEE delivered the higher annualized total return — AEE at 11.18% versus ATO at 10.97%. Past performance doesn't predict future results.

Ameren Corporation (AEE) vs Atmos Energy Corporation (ATO)

ATO leads on 9 of 15 compared metrics, though AEE is the cheaper stock.

A side-by-side comparison of Ameren Corporation and Atmos Energy Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 17, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

Atmos Energy Corporation

$28.49B

$169.60Utilities

Total return — AEE vs ATO

growth of $100 · last 30y

AEE +187.0%ATO +596.9%ATO compounded faster

AEE ATO

AEE vs ATO: by the numbers

•AEE is the larger company ($30.58B vs $28.49B market cap).
•AEE trades at the lower earnings multiple (19.87 vs 20.86 P/E).
•ATO converts more revenue to profit (27.58% vs 17.17% net margin).
•ATO grew revenue faster over the past five years (8.80% vs 8.44% CAGR).
•AEE pays the higher dividend yield (2.64% vs 2.28%).

Which is better, AEE or ATO?

Metric tally: AEE 6 · ATO 9

It depends on what you're optimizing for:

ValueAEE(lower P/E)

GrowthATO(faster 5Y revenue CAGR)

IncomeAEE(higher dividend yield)

QualityATO(higher ROIC)

Metrics side by side

Valuation

Metric	AEE	ATO
P/E ratio	19.87●	20.86
Forward P/E	19.03	18.93
P/S ratio	3.46●	5.83
P/B ratio	2.27	1.91●
PEG ratio	0.87●	2.18
EV / EBITDA	7.79●	14.71

Profitability

Metric	AEE	ATO
Gross margin	39.38%	51.43%●
Operating margin	23.97%	35.87%●
Net margin	17.17%	27.58%●
ROE	11.24%●	9.03%
ROIC	4.01%	4.58%●

Dividends

Metric	AEE	ATO
Dividend yield	2.64%●	2.28%
Payout ratio	54.28%	51.33%

Growth (annualized)

Metric	AEE	ATO
Revenue CAGR (5Y)	8.44%	8.80%●
EPS CAGR (5Y)	8.79%	9.05%●
FCF CAGR (5Y)	-39.48%	19.32%●
Total return CAGR (5Y)	8.80%	13.95%●

Frequently asked

Which is better, AEE or ATO?: It depends on your goal. value: AEE (lower P/E); growth: ATO (faster 5Y revenue CAGR); income: AEE (higher dividend yield); quality: ATO (higher ROIC). Across all compared metrics, ATO leads 9 to 6.
Is AEE or ATO cheaper?: On trailing earnings, AEE is cheaper: AEE trades at a 19.87 P/E and ATO at 20.86.
Which has grown faster, AEE or ATO?: Over the past five years, ATO grew revenue faster — AEE at a 8.44% CAGR versus ATO at 8.80%.
Does AEE or ATO pay a bigger dividend?: AEE yields 2.64% and ATO yields 2.28% based on trailing dividends and the latest price.
Is AEE or ATO more profitable?: ATO runs the higher net margin — AEE at 17.17% versus ATO at 27.58%.
Which has been the better investment, AEE or ATO?: Over the past 10-year, AEE delivered the higher annualized total return — AEE at 11.18% versus ATO at 10.97%. Past performance doesn't predict future results.

Go deeper

Full AEE analysis Full ATO analysis Interactive comparison tool

Dig into the metrics

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

Ameren & Atmos Energy 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 17, 2026.