ATO vs DUK vs NGG Stock Comparison

Atmos Energy, Duke Energy and National Grid Prices as of Oct 27, 2026 Peers: Industry group
ATO Atmos Energy Corp
$171.43 +9.0% 1M -2.8% 1Y
Market cap
$28.50B
P/E
20.3x
Revenue (TTM)
$4.92B
Div. yield
0.02%
Regulated Gas Utilities Utilities
3 wins
DUK Duke Energy CORP
$124.79 +10.1% 1M -2.1% 1Y
Market cap
$96.08B
P/E
18.5x
Revenue (TTM)
$33.25B
Div. yield
–
Regulated Electric Utilities Utilities
2 wins
NGG National Grid Plc
$81.76 +8.4% 1M +5.9% 1Y
Market cap
$81.36B
P/E
18.6x
Revenue (TTM)
—
Div. yield
–
Regulated Electric Utilities Utilities
3 wins

Head to Head

8 decided of 12

National Grid leads on 3 of the 12 questions below (National Grid 3, Atmos Energy 3, Duke Energy 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionATODUKNGGLeader
Larger companyMarket capitalisation $28.50B $96.08B $81.36B DUK
Cheaper on earningsLower P/E, profitable companies only 20.3x 18.5x 18.6x DUK
Cheaper on forward earningsLower price / next fiscal year consensus EPS 20.9x 19.0x 14.0x NGG
Faster revenue growthRevenue growth, trailing twelve months +6.5% +6.3% — ATO
More profitableNet margin, trailing twelve months 28.5% — — –
Better return on capitalReturn on invested capital 5.9% — — –
Less leveragedLower net debt / EBITDA 3.7x — — –
Higher dividend yieldTrailing dividend yield 0.02% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -2.8% -2.1% +5.9% NGG
Better 5-year returnAnnualised price return, 5 years +13.0%/yr +4.0%/yr +4.7%/yr ATO
Less volatileAnnualised volatility, 1 year 16.1% 16.6% 22.4% ATO
Higher overall scoreMean of the five percentile scores vs peers 62/100 73/100 74/100 NGG

Percentile Scorecard

ATODUKNGG

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisATODUKNGG
Valuation 18 #55 of 67 83 #12 of 67 56 #30 of 67
Growth 66 #23 of 65 83 #12 of 65 –
Profitability 87 #9 of 63 55 #29 of 63 –
Financial Health 94 #5 of 63 – 76 #16 of 63
Shareholder Returns 46 #37 of 67 73 #19 of 67 91 #7 of 67
Overall 62 73 74
  • ATO ranked among 67 companies in Regulated Utilities
  • DUK ranked among 67 companies in Regulated Utilities
  • NGG ranked among 67 companies in Regulated Utilities

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodATODUKNGGSPY
1 month +9.0%+10.1%+8.4% -0.2%
3 months -4.4%-3.5%+1.1% +3.9%
6 months -8.4%-2.4%-6.5% +8.2%
Year to date +2.3%+6.5%+5.7% +12.9%
1 year -2.8%-2.1%+5.9% +12.3%
3 years +61.5%+42.6%+36.5% +87.4%
3 years, per year +17.3%+12.6%+10.9% +23.3%
5 years +84.6%+21.8%+25.5% +67.9%
5 years, per year +13.0%+4.0%+4.7% +10.9%
10 years +138.6%+59.1%+15.5% +261.1%
10 years, per year +9.1%+4.8%+1.4% +13.7%

Risk

MeasureATODUKNGGSPY
Volatility, 1Y 16.1%16.6%22.4% 12.7%
Downside volatility, 1Y 16.6%16.9%24.1% 12.7%
Beta vs S&P 500, 1Y -0.21-0.320.31 1.00
Return / volatility, 1Y -0.17-0.130.27 0.97
Max drawdown, 5Y -20.0%-26.0%-40.9% -25.4%
From 52-week high -10.8%-6.5%-13.0% -1.2%
52-week high $192.29$133.46$93.93 $779.14
52-week low $156.25$113.24$73.54 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleATODUKNGG
P/E now vs peer median 20.6xmedian 20.9x 18.7xmedian 20.9x 18.6xmedian 20.9x
P/S now vs peer median 5.9xmedian 2.9x 2.9xmedian 2.9x 3.6xmedian 2.9x
EV/EBITDA now vs peer median 14.9xmedian 13.2x —median 13.2x —median 13.2x
P/FCF now vs peer median -14.3xmedian 36.9x —median 36.9x -29.4xmedian 36.9x
P/B now vs peer median 1.9xmedian 1.7x 1.7xmedian 1.7x 1.6xmedian 1.7x
PEG now vs peer median 1.59median 2.31 0.31median 2.31 —median 2.31

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsATODUKNGG
Revenue $4.92B $33.25B –
Gross profit $3.95B – –
Operating income $1.82B $9.23B –
Net income $1.40B $5.38B –
Free cash flow -$2.02B – –
EPS (diluted) $8.28 $6.66 –
Cash & equivalents $525.81M $673.00M $493.98M
Total debt $10.25B – $61.59B
Shares (diluted) 169.37M 779.00M 994.20M
Enterprise value $27.27B $96.08B $53.65B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricATODUKNGG
P/E 20.6x 18.7x 18.6x
P/FCF -14.3x – -29.4x
P/Operating cash flow 14.3x 8.4x –
P/S 5.9x 2.9x 3.6x
P/B 1.9x 1.7x 1.6x
P/Tangible book 1.9x 1.7x 1.8x
EV/EBITDA 14.9x – –
EV/EBIT 21.3x – –
EV/Revenue 7.9x 2.9x –
EV/FCF -19.2x – –
EV/Operating cash flow 19.2x 8.4x –
PEG (3Y EPS CAGR) 1.59 0.31 –

Growth

14 metrics
MetricATODUKNGG
Revenue growth (1Y) 6.5% 6.3% –
Revenue CAGR (3Y) 3.7% 4.6% –
Gross profit growth (1Y) 10.3% – –
Gross profit CAGR (3Y) 12.6% – –
Operating income growth (1Y) 19.3% 9.5% –
Operating income CAGR (3Y) 21.3% 13.2% –
Net income growth (1Y) 21.1% 8.7% –
Net income CAGR (3Y) 18.7% 59.0% –
EPS growth (1Y) 15.3% 8.9% –
EPS CAGR (3Y) 13.0% 59.6% –
Operating cash flow growth (1Y) -0.6% -3.2% –
Operating cash flow CAGR (3Y) -14.8% 26.8% –
Free cash flow growth (1Y) -47.1% – –
Free cash flow CAGR (3Y) -84.9% – –

Profitability

14 metrics
MetricATODUKNGG
Gross margin 80.3% – –
EBITDA margin 52.8% – –
Operating margin 37.0% – –
Pretax margin 35.6% – –
Net margin 28.5% – –
FCF margin -41.1% – –
Operating cash flow margin 41.0% 34.8% –
Return on equity 9.3% 9.5% –
Return on assets 4.5% 2.7% –
Return on invested capital 5.9% – –
Return on capital employed 6.2% – –
Asset turnover 0.2x 0.2x –
Cash conversion (OCF / net income) 1.4x 2.1x –
Stock comp / revenue – – –

Financial Health

11 metrics
MetricATODUKNGG
Debt / assets 32.5% – 43.2%
Debt / equity 0.7x – 1.2x
Net debt / EBITDA 3.7x – –
Debt / FCF -5.1x – –
Liabilities / assets 51.7% – 63.7%
Equity / assets 48.3% 28.3% 36.3%
Interest coverage 12.8x – –
Current ratio 0.8x 0.7x 0.8x
Quick ratio 0.5x – 0.7x
Cash ratio 0.3x – 0.3x
Altman Z-score 1.65 – –

Shareholder Returns

7 metrics
MetricATODUKNGG
Dividend yield 2.3% 3.4% 4.0%
Net buyback yield -3.7% – –
Shareholder yield -1.4% 3.4% 4.0%
Payout ratio (earnings) 45.1% – –
Payout ratio (FCF) -31.3% – –
Dividend growth (1Y) 17.4% – –
Dividend CAGR (3Y) 15.0% – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusATODUKNGG
Forward P/E 20.9xFY2026 19.0xFY2026 14.0xFY2026
EPS, next fiscal year $8.21FY2026 $6.56FY2026 $5.86FY2026
EPS growth, next FY +10.1%FY2026 +4.0%FY2026 +11.4%FY2026
EPS growth, the year after +5.8% +15.4% +8.9%
Revenue, next fiscal year $5.40BFY2026 $32.42BFY2026 $25.38BFY2026
Revenue growth, next FY +14.4%FY2026 +0.6%FY2026 +6.4%FY2026
Revenue growth, the year after +7.5% +4.1% +8.6%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersATODUKNGG
Held by institutions 96.4% 69.7% 6.2%
Institutions holding 1,044 2,458 617
Change in shares held, QoQ +2.3% +0.5% +6.6%
Institutions buying 546 1,297 352
Institutions selling 342 801 159
Buyers to sellers 1.60 1.62 2.21

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

ATODUKNGG
ATO 1.00 0.79 0.53
DUK 0.79 1.00 0.55
NGG 0.53 0.55 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ATO, DUK and NGG?

Duke Energy (DUK) is the largest by market capitalisation: Atmos Energy (ATO) $28.50B, Duke Energy (DUK) $96.08B, National Grid (NGG) $81.36B.

Which stock is cheaper, ATO, DUK and NGG?

Duke Energy (DUK) trades on the lowest price-to-earnings ratio (Atmos Energy (ATO) 20.3x, Duke Energy (DUK) 18.5x, National Grid (NGG) 18.6x). On next year's consensus earnings, National Grid (NGG) is cheapest (Atmos Energy (ATO) 20.9x, Duke Energy (DUK) 19.0x, National Grid (NGG) 14.0x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Atmos Energy (ATO) grew revenue fastest over the trailing twelve months: Atmos Energy (ATO) +6.5%, Duke Energy (DUK) +6.3%.

Which stock has performed better?

Over the past year National Grid (NGG) returned the most: Atmos Energy (ATO) -2.8%, Duke Energy (DUK) -2.1%, National Grid (NGG) +5.9%. Over five years, Atmos Energy (ATO) compounded fastest (Atmos Energy (ATO) +13.0%/yr, Duke Energy (DUK) +4.0%/yr, National Grid (NGG) +4.7%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Atmos Energy (ATO) 0.02%, Duke Energy (DUK) 0.00%, National Grid (NGG) 0.00%. Duke Energy (DUK) and National Grid (NGG) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Atmos Energy (ATO) has been the steadiest (Atmos Energy (ATO) 16.1%, Duke Energy (DUK) 16.6%, National Grid (NGG) 22.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, ATO, DUK and NGG?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, National Grid (NGG) leads on 3. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.