ATO vs PEG vs SO Stock Comparison

Atmos Energy, Public Service Enterprise and Southern Prices as of Oct 26, 2026 Peers: Industry group
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ATO Atmos Energy Corp
$171.34 +8.9% 1M -2.6% 1Y
Market cap
$28.81B
P/E
20.5x
Revenue (TTM)
$4.92B
Div. yield
0.02%
Regulated Gas Utilities Utilities
6 wins
SO Southern Co
$92.56 +11.7% 1M -3.5% 1Y
Market cap
$104.81B
P/E
22.5x
Revenue (TTM)
$30.18B
Div. yield
0.03%
Regulated Electric Utilities Utilities
1 win

Head to Head

12 decided of 12

Atmos Energy leads on 6 of the 12 questions below (Atmos Energy 6, Public Service Enterprise 5, Southern 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionATOPEGSOLeader
Larger companyMarket capitalisation $28.81B $36.02B $104.81B SO
Cheaper on earningsLower P/E, profitable companies only 20.5x 17.9x 22.5x PEG
Cheaper on forward earningsLower price / next fiscal year consensus EPS 20.9x 17.2x 19.1x PEG
Faster revenue growthRevenue growth, trailing twelve months +6.5% +15.3% +6.4% PEG
More profitableNet margin, trailing twelve months 28.5% 15.4% 15.4% ATO
Better return on capitalReturn on invested capital 5.9% 6.4% 5.1% PEG
Less leveragedLower net debt / EBITDA 3.7x 5.5x 5.3x ATO
Higher dividend yieldTrailing dividend yield 0.02% 0.04% 0.03% PEG
Better 1-year returnPrice return, last 12 months -2.6% -13.2% -3.5% ATO
Better 5-year returnAnnualised price return, 5 years +13.3%/yr +2.4%/yr +8.1%/yr ATO
Less volatileAnnualised volatility, 1 year 16.2% 19.0% 17.9% ATO
Higher overall scoreMean of the five percentile scores vs peers 62/100 51/100 43/100 ATO

Percentile Scorecard

ATOPEGSO

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

AxisATOPEGSO
Valuation 17 #56 of 67 53 #32 of 67 36 #43 of 67
Growth 66 #23 of 65 28 #47 of 65 53 #31 of 65
Profitability 87 #9 of 64 76 #16 of 64 78 #15 of 64
Financial Health 94 #5 of 64 51 #32 of 64 35 #42 of 64
Shareholder Returns 46 #37 of 67 47 #36 of 67 15 #57 of 67
Overall 62 51 43
  • ATO ranked among 67 companies in Regulated Utilities
  • PEG ranked among 67 companies in Regulated Utilities
  • SO ranked among 67 companies in Regulated Utilities

Price Performance

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

Returns

PeriodATOPEGSOSPY
1 month +8.9%+7.6%+11.7% -0.8%
3 months -3.8%-8.9%-4.1% +3.5%
6 months -7.7%-10.1%-1.3% +7.0%
Year to date +2.2%-10.2%+6.1% +12.2%
1 year -2.6%-13.2%-3.5% +13.0%
3 years +61.5%+20.0%+39.1% +86.3%
3 years, per year +17.3%+6.3%+11.6% +23.1%
5 years +86.7%+12.7%+47.8% +68.6%
5 years, per year +13.3%+2.4%+8.1% +11.0%
10 years +136.7%+74.9%+81.6% +258.0%
10 years, per year +9.0%+5.8%+6.1% +13.6%

Risk

MeasureATOPEGSOSPY
Volatility, 1Y 16.2%19.0%17.9% 12.7%
Downside volatility, 1Y 16.6%20.2%17.5% 12.7%
Beta vs S&P 500, 1Y -0.210.06-0.23 1.00
Return / volatility, 1Y -0.16-0.70-0.19 1.02
Max drawdown, 5Y -20.0%-29.6%-23.3% -25.4%
From 52-week high -10.9%-17.1%-6.6% -1.8%
52-week high $192.29$86.95$99.11 $779.14
52-week low $156.25$66.56$82.35 $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.

MultipleATOPEGSO
P/E now vs peer median 20.6xmedian 20.8x 17.8xmedian 20.8x 22.6xmedian 20.8x
P/S now vs peer median 5.9xmedian 2.9x 2.8xmedian 2.9x 3.5xmedian 2.9x
EV/EBITDA now vs peer median 14.9xmedian 13.1x 13.7xmedian 13.1x 13.1xmedian 13.1x
P/FCF now vs peer median -14.3xmedian 36.7x 130.2xmedian 36.7x -32.6xmedian 36.7x
P/B now vs peer median 1.9xmedian 1.7x 2.1xmedian 1.7x 2.5xmedian 1.7x
PEG now vs peer median 1.59median 2.23 -1.76median 2.23 0.71median 2.23

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 monthsATOPEGSO
Revenue $4.92B $13.03B $30.18B
Gross profit $3.95B $8.51B $25.14B
Operating income $1.82B $2.90B $7.31B
Net income $1.40B $2.01B $4.66B
Free cash flow -$2.02B $276.00M -$3.27B
EPS (diluted) $8.28 $4.03 $4.08
Cash & equivalents $525.81M $192.00M $2.98B
Total debt $10.25B $24.54B $295.00B
Shares (diluted) 169.37M 499.00M 1.14B
Enterprise value $27.58B $34.96B $95.87B

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
MetricATOPEGSO
P/E 20.6x 17.8x 22.6x
P/FCF -14.3x 130.2x -32.6x
P/Operating cash flow 14.3x 10.0x 10.0x
P/S 5.9x 2.8x 3.5x
P/B 1.9x 2.1x 2.5x
P/Tangible book 1.9x 2.1x 2.5x
EV/EBITDA 14.9x 13.7x 13.1x
EV/EBIT 21.3x 20.8x 24.5x
EV/Revenue 7.9x 4.6x 5.9x
EV/FCF -19.1x 218.4x -54.8x
EV/Operating cash flow 19.2x 16.8x 16.8x
PEG (3Y EPS CAGR) 1.59 -1.76 0.71

Growth

14 metrics
MetricATOPEGSO
Revenue growth (1Y) 6.5% 15.3% 6.4%
Revenue CAGR (3Y) 3.7% 0.0% 3.0%
Gross profit growth (1Y) 10.3% 11.6% 5.3%
Gross profit CAGR (3Y) 12.6% -3.0% 1.6%
Operating income growth (1Y) 19.3% 7.5% 1.5%
Operating income CAGR (3Y) 21.3% -6.8% 14.7%
Net income growth (1Y) 21.1% 1.6% 8.7%
Net income CAGR (3Y) 18.7% -10.2% 16.2%
EPS growth (1Y) 15.3% 1.8% 5.6%
EPS CAGR (3Y) 13.0% -10.2% 31.9%
Operating cash flow growth (1Y) -0.6% 42.7% 15.5%
Operating cash flow CAGR (3Y) -14.8% 0.3% 23.7%
Free cash flow growth (1Y) -47.1% 142.9% -152.2%
Free cash flow CAGR (3Y) -84.9% -18.8% -3.1%

Profitability

14 metrics
MetricATOPEGSO
Gross margin 80.3% 65.3% 83.3%
EBITDA margin 52.8% 33.7% 45.2%
Operating margin 37.0% 22.3% 24.2%
Pretax margin 35.6% 17.5% 17.4%
Net margin 28.5% 15.4% 15.4%
FCF margin -41.1% 2.1% -10.8%
Operating cash flow margin 41.0% 27.6% 35.3%
Return on equity 9.3% 11.6% 9.2%
Return on assets 4.5% 3.4% 2.9%
Return on invested capital 5.9% 6.4% 5.1%
Return on capital employed 6.2% 5.5% 5.1%
Asset turnover 0.2x 0.2x 0.2x
Cash conversion (OCF / net income) 1.4x 1.8x 2.3x
Stock comp / revenue – – –

Financial Health

11 metrics
MetricATOPEGSO
Debt / assets 32.5% 41.7% 46.6%
Debt / equity 0.7x 1.4x 1.8x
Net debt / EBITDA 3.7x 5.5x 5.3x
Debt / FCF -5.1x 88.9x -23.1x
Liabilities / assets 51.7% 70.5% 73.9%
Equity / assets 48.3% 29.5% 26.1%
Interest coverage 12.8x 2.7x 2.3x
Current ratio 0.8x 0.9x 0.8x
Quick ratio 0.5x 0.5x 0.4x
Cash ratio 0.3x 0.0x 0.2x
Altman Z-score 1.64 1.22 –

Shareholder Returns

7 metrics
MetricATOPEGSO
Dividend yield 2.3% 3.7% 3.2%
Net buyback yield -3.7% – –
Shareholder yield -1.4% 3.7% 3.2%
Payout ratio (earnings) 45.1% 64.5% 66.6%
Payout ratio (FCF) -31.3% 469.9% -94.8%
Dividend growth (1Y) 17.4% 5.7% 4.7%
Dividend CAGR (3Y) 15.0% 5.4% 1.2%

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.

ConsensusATOPEGSO
Forward P/E 20.9xFY2026 17.2xFY2026 19.1xFY2026
EPS, next fiscal year $8.21FY2026 $4.20FY2026 $4.84FY2026
EPS growth, next FY +10.1%FY2026 +3.7%FY2026 +12.6%FY2026
EPS growth, the year after +5.8% +6.2% -3.1%
Revenue, next fiscal year $5.40BFY2026 $13.36BFY2026 $31.54BFY2026
Revenue growth, next FY +14.4%FY2026 +9.8%FY2026 +6.7%FY2026
Revenue growth, the year after +7.5% +4.5% +8.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersATOPEGSO
Held by institutions 96.4% 77.3% 72.5%
Institutions holding 1,044 1,307 2,363
Change in shares held, QoQ +2.3% +4.0% +5.7%
Institutions buying 546 676 1,248
Institutions selling 342 400 724
Buyers to sellers 1.60 1.69 1.72

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.

ATOPEGSO
ATO 1.00 0.63 0.71
PEG 0.63 1.00 0.67
SO 0.71 0.67 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ATO, PEG and SO?

Southern (SO) is the largest by market capitalisation: Atmos Energy (ATO) $28.81B, Public Service Enterprise (PEG) $36.02B, Southern (SO) $104.81B.

Which stock is cheaper, ATO, PEG and SO?

Public Service Enterprise (PEG) trades on the lowest price-to-earnings ratio (Atmos Energy (ATO) 20.5x, Public Service Enterprise (PEG) 17.9x, Southern (SO) 22.5x). On next year's consensus earnings, Public Service Enterprise (PEG) is cheapest (Atmos Energy (ATO) 20.9x, Public Service Enterprise (PEG) 17.2x, Southern (SO) 19.1x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Public Service Enterprise (PEG) grew revenue fastest over the trailing twelve months: Atmos Energy (ATO) +6.5%, Public Service Enterprise (PEG) +15.3%, Southern (SO) +6.4%.

Which company is more profitable?

Atmos Energy (ATO) has the highest net margin (Atmos Energy (ATO) 28.5%, Public Service Enterprise (PEG) 15.4%, Southern (SO) 15.4%). On return on invested capital, Public Service Enterprise (PEG) leads (Atmos Energy (ATO) 5.9%, Public Service Enterprise (PEG) 6.4%, Southern (SO) 5.1%).

Which stock has performed better?

Over the past year Atmos Energy (ATO) returned the most: Atmos Energy (ATO) -2.6%, Public Service Enterprise (PEG) -13.2%, Southern (SO) -3.5%. Over five years, Atmos Energy (ATO) compounded fastest (Atmos Energy (ATO) +13.3%/yr, Public Service Enterprise (PEG) +2.4%/yr, Southern (SO) +8.1%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Public Service Enterprise (PEG) has the highest dividend yield: Atmos Energy (ATO) 0.02%, Public Service Enterprise (PEG) 0.04%, Southern (SO) 0.03%.

Which stock is riskier?

By one-year price volatility, Atmos Energy (ATO) has been the steadiest (Atmos Energy (ATO) 16.2%, Public Service Enterprise (PEG) 19.0%, Southern (SO) 17.9%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, ATO, PEG and SO?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Atmos Energy (ATO) leads on 6. 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.