Is ATO or NI cheaper?

On trailing earnings, ATO is cheaper: ATO trades at a 20.86 P/E and NI at 23.62.

Which has grown faster, ATO or NI?

Over the past five years, ATO grew revenue faster — ATO at a 8.80% CAGR versus NI at 8.10%.

Does ATO or NI pay a bigger dividend?

ATO yields 2.28% and NI yields 2.44% based on trailing dividends and the latest price.

Is ATO or NI more profitable?

ATO runs the higher net margin — ATO at 27.58% versus NI at 14.10%.

Which has been the better investment, ATO or NI?

Over the past 10-year, ATO delivered the higher annualized total return — ATO at 10.95% versus NI at 9.98%. Past performance doesn't predict future results.

Atmos Energy Corporation (ATO) vs NiSource Inc. (NI)

NI leads on 8 of 15 compared metrics, though ATO is the cheaper stock.

A side-by-side comparison of Atmos Energy Corporation and NiSource Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 15, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

ATO

Atmos Energy Corporation

Total return — ATO vs NI

growth of $100 · last 30y

ATO +592.2%NI +559.3%ATO compounded faster

ATO NI

ATO vs NI: by the numbers

•ATO is the larger company ($28.31B vs $22.76B market cap).
•ATO trades at the lower earnings multiple (20.86 vs 23.62 P/E).
•ATO converts more revenue to profit (27.58% vs 14.10% net margin).
•ATO grew revenue faster over the past five years (8.80% vs 8.10% CAGR).
•NI pays the higher dividend yield (2.44% vs 2.28%).

Which is better, ATO or NI?

Metric tally: ATO 7 · NI 8

It depends on what you're optimizing for:

ValueATO(lower P/E)

GrowthATO(faster 5Y revenue CAGR)

IncomeNI(higher dividend yield)

Metrics side by side

Valuation

Metric	ATO	NI
P/E ratio	20.86●	23.62
Forward P/E	18.93●	21.20
P/S ratio	5.83	3.35●
P/B ratio	1.91●	2.36
PEG ratio	2.18	1.05●
EV / EBITDA	14.71	12.66●

Profitability

Metric	ATO	NI
Gross margin	51.43%	55.92%●
Operating margin	35.87%●	27.78%
Net margin	27.58%●	14.10%
ROE	9.03%	9.96%●
ROIC	4.58%	4.51%

Dividends

Metric	ATO	NI
Dividend yield	2.28%	2.44%●
Payout ratio	51.33%	59.18%

Growth (annualized)

Metric	ATO	NI
Revenue CAGR (5Y)	8.80%●	8.10%
EPS CAGR (5Y)	9.05%	14.27%●
FCF CAGR (5Y)	19.32%●	-7.40%
Total return CAGR (5Y)	13.71%	16.40%●

Frequently asked

Which is better, ATO or NI?: It depends on your goal. value: ATO (lower P/E); growth: ATO (faster 5Y revenue CAGR); income: NI (higher dividend yield). Across all compared metrics, NI leads 8 to 7.
Is ATO or NI cheaper?: On trailing earnings, ATO is cheaper: ATO trades at a 20.86 P/E and NI at 23.62.
Which has grown faster, ATO or NI?: Over the past five years, ATO grew revenue faster — ATO at a 8.80% CAGR versus NI at 8.10%.
Does ATO or NI pay a bigger dividend?: ATO yields 2.28% and NI yields 2.44% based on trailing dividends and the latest price.
Is ATO or NI more profitable?: ATO runs the higher net margin — ATO at 27.58% versus NI at 14.10%.
Which has been the better investment, ATO or NI?: Over the past 10-year, ATO delivered the higher annualized total return — ATO at 10.95% versus NI at 9.98%. Past performance doesn't predict future results.

Go deeper

Full ATO analysis Full NI analysis Interactive comparison tool

Dig into the metrics

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

Atmos Energy & NiSource 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 15, 2026.