CEG vs NRG vs ROK Stock Comparison

Constellation Energy, Nrg Energy and Rockwell Automation Prices as of Oct 29, 2026 Peers: Industry group
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NRG Nrg Energy, Inc.
$97.53 +0.4% 1M -45.4% 1Y
Market cap
$20.13B
P/E
25.7x
Revenue (TTM)
$33.13B
Div. yield
0.02%
Independent Power Producers Utilities
3 wins
ROK Rockwell Automation, Inc
$451.43 +4.7% 1M +22.6% 1Y
Market cap
$48.25B
P/E
40.2x
Revenue (TTM)
$8.97B
Div. yield
–
Industrial Machinery Industrials
5 wins

Head to Head

11 decided of 12

Rockwell Automation leads on 5 of the 12 questions below (Rockwell Automation 5, Constellation Energy 3, Nrg Energy 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCEGNRGROKLeader
Larger companyMarket capitalisation $94.24B $20.13B $48.25B CEG
Cheaper on earningsLower P/E, profitable companies only 27.2x 25.7x 40.2x NRG
Cheaper on forward earningsLower price / next fiscal year consensus EPS 21.3x 11.5x 36.1x NRG
Faster revenue growthRevenue growth, trailing twelve months +26.0% +12.8% +11.3% CEG
More profitableNet margin, trailing twelve months 11.1% 2.4% 13.4% ROK
Better return on capitalReturn on invested capital 5.5% 5.8% 21.0% ROK
Less leveragedLower net debt / EBITDA 2.9x 6.2x 1.3x ROK
Higher dividend yieldTrailing dividend yield 0.00% 0.02% 0.00% –
Better 1-year returnPrice return, last 12 months -34.1% -45.4% +22.6% ROK
Better 5-year returnAnnualised price return, 5 years — +19.6%/yr +7.2%/yr NRG
Less volatileAnnualised volatility, 1 year 48.5% 49.8% 31.3% ROK
Higher overall scoreMean of the five percentile scores vs peers 68/100 65/100 54/100 CEG

Percentile Scorecard

CEGNRGROK

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

AxisCEGNRGROK
Valuation 52 #12 of 24 70 #8 of 24 15 #172 of 203
Growth 96 #2 of 23 77 #6 of 23 51 #93 of 188
Profitability 86 #4 of 23 73 #7 of 23 96 #9 of 183
Financial Health 48 #13 of 24 17 #20 of 24 34 #143 of 216
Shareholder Returns 56 #9 of 19 89 #3 of 19 76 #38 of 152
Overall 68 65 54
  • CEG ranked among 24 companies in Power Generation
  • NRG ranked among 24 companies in Power Generation
  • ROK ranked among 222 companies in Machinery

Price Performance

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

Returns

PeriodCEGNRGROKSPY
1 month 0.0%+0.4%+4.7% +0.7%
3 months +0.4%-27.2%-4.1% +3.7%
6 months -15.5%-37.3%+10.4% +7.1%
Year to date -25.1%-38.8%+16.0% +12.8%
1 year -34.1%-45.4%+22.6% +11.9%
3 years +134.1%+130.8%+71.3% +85.2%
3 years, per year +32.8%+32.2%+19.7% +22.8%
5 years —+144.5%+41.3% +67.6%
5 years, per year —+19.6%+7.2% +10.9%
10 years —+846.9%+280.0% +262.0%
10 years, per year —+25.2%+14.3% +13.7%

Risk

MeasureCEGNRGROKSPY
Volatility, 1Y 48.5%49.8%31.3% 12.7%
Downside volatility, 1Y 50.1%55.6%31.8% 12.6%
Beta vs S&P 500, 1Y 1.431.401.40 1.00
Return / volatility, 1Y -0.70-0.910.72 0.94
Max drawdown, 5Y -50.8%-49.8%-45.6% -25.4%
From 52-week high -34.1%-47.0%-8.8% -1.2%
52-week high $401.43$184.03$495.08 $779.14
52-week low $236.50$92.32$348.51 $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.

MultipleCEGNRGROK
P/E now vs peer median 27.5xmedian 24.9x 26.3xmedian 24.9x 41.8xmedian 25.8x
P/S now vs peer median 3.0xmedian 2.6x 0.6xmedian 2.6x 5.6xmedian 1.9x
EV/EBITDA now vs peer median 14.3xmedian 11.6x 11.6xmedian 11.6x 25.3xmedian 14.6x
P/FCF now vs peer median 304.0xmedian 13.9x 58.9xmedian 13.9x 33.3xmedian 22.2x
P/B now vs peer median 2.9xmedian 2.1x 4.2xmedian 2.1x 14.3xmedian 2.2x
PEG now vs peer median 0.46median 0.62 0.77median 0.62 -9.51median 1.45

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 monthsCEGNRGROK
Revenue $31.27B $33.13B $8.97B
Gross profit – $6.23B $4.41B
Operating income $4.60B $2.02B $1.77B
Net income $3.48B $849.00M $1.20B
Free cash flow $309.00M $348.00M $1.50B
R&D – – $716.00M
EPS (diluted) $9.63 $3.69 $10.76
Cash & equivalents $697.00M $162.00M $479.00M
Total debt $24.70B $23.44B $13.81B
Shares (diluted) 360.00M 212.00M 111.60M
Enterprise value $85.14B $14.35B $46.43B

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
MetricCEGNRGROK
P/E 27.5x 26.3x 41.8x
P/FCF 304.0x 58.9x 33.3x
P/Operating cash flow 22.3x 13.2x 28.9x
P/S 3.0x 0.6x 5.6x
P/B 2.9x 4.2x 14.3x
P/Tangible book 2.9x 7.6x 18.0x
EV/EBITDA 14.3x 11.6x 25.3x
EV/EBIT 25.7x 21.7x 29.9x
EV/Revenue 3.8x 1.3x 5.9x
EV/FCF 381.6x 125.8x 35.2x
EV/Operating cash flow 28.0x 28.2x 30.5x
PEG (3Y EPS CAGR) 0.46 0.77 -9.51

Growth

14 metrics
MetricCEGNRGROK
Revenue growth (1Y) 26.0% 12.8% 11.3%
Revenue CAGR (3Y) 5.8% 2.9% 1.3%
Gross profit growth (1Y) – 22.9% 1.9%
Gross profit CAGR (3Y) – 348.5% 7.5%
Operating income growth (1Y) 19.7% 57.9% -7.1%
Operating income CAGR (3Y) 111.3% 43.0% 2.9%
Net income growth (1Y) 15.2% 62.6% 23.8%
Net income CAGR (3Y) 66.0% 34.1% -5.5%
EPS growth (1Y) 0.4% 58.9% 25.2%
EPS CAGR (3Y) 59.2% 34.1% -4.4%
Operating cash flow growth (1Y) 822.4% -32.1% 13.8%
Operating cash flow CAGR (3Y) 42.4% 33.9% 22.8%
Free cash flow growth (1Y) 112.9% -75.0% 13.9%
Free cash flow CAGR (3Y) 26.9% 27.6% 23.6%

Profitability

14 metrics
MetricCEGNRGROK
Gross margin – 18.8% 49.1%
EBITDA margin 26.4% 11.4% 23.3%
Operating margin 14.7% 6.1% 19.7%
Pretax margin 16.3% 3.2% 14.7%
Net margin 11.1% 2.4% 13.4%
FCF margin 1.0% 1.1% 16.8%
Operating cash flow margin 13.5% 4.7% 19.3%
Return on equity 10.6% 17.5% 30.9%
Return on assets 3.6% 2.1% 9.8%
Return on invested capital 5.5% 5.8% 21.0%
Return on capital employed 5.4% 6.7% 23.6%
Asset turnover 0.3x 0.8x 0.8x
Cash conversion (OCF / net income) 1.2x 1.8x 1.4x
Stock comp / revenue – 0.4% 1.0%

Financial Health

11 metrics
MetricCEGNRGROK
Debt / assets 25.1% 58.7% 29.4%
Debt / equity 0.8x 4.8x 0.9x
Net debt / EBITDA 2.9x 6.2x 1.3x
Debt / FCF 79.9x 67.3x 2.2x
Liabilities / assets 67.5% 87.8% 68.5%
Equity / assets 32.5% 12.2% 31.5%
Interest coverage 5.9x 2.0x 12.8x
Current ratio 1.5x 1.0x 1.1x
Quick ratio 0.6x 0.5x 0.7x
Cash ratio 0.1x 0.0x 0.1x
Altman Z-score 1.51 1.42 6.07

Shareholder Returns

7 metrics
MetricCEGNRGROK
Dividend yield 0.6% 1.9% 1.2%
Net buyback yield – 8.0% 1.4%
Shareholder yield 0.6% 9.9% 2.6%
Payout ratio (earnings) – 51.7% –
Payout ratio (FCF) – 126.1% –
Dividend growth (1Y) – 7.6% –
Dividend CAGR (3Y) – 9.1% –

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.

ConsensusCEGNRGROK
Forward P/E 21.3xFY2026 11.5xFY2026 36.1xFY2026
EPS, next fiscal year $12.40FY2026 $8.49FY2026 $12.50FY2026
EPS growth, next FY +32.1%FY2026 +5.2%FY2026 +18.7%FY2026
EPS growth, the year after +12.1% +28.7% +12.3%
Revenue, next fiscal year $31.54BFY2026 $36.07BFY2026 $8.50BFY2026
Revenue growth, next FY +23.5%FY2026 +17.5%FY2026 +1.9%FY2026
Revenue growth, the year after +7.0% -0.9% +19.4%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCEGNRGROK
Held by institutions 79.8% 93.7% 89.2%
Institutions holding 1,844 1,024 1,542
Change in shares held, QoQ +2.9% +0.7% +3.5%
Institutions buying 1,003 509 807
Institutions selling 579 385 437
Buyers to sellers 1.73 1.32 1.85

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.

CEGNRGROK
CEG 1.00 0.70 0.28
NRG 0.70 1.00 0.42
ROK 0.28 0.42 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, CEG, NRG and ROK?

Constellation Energy (CEG) is the largest by market capitalisation: Constellation Energy (CEG) $94.24B, Nrg Energy (NRG) $20.13B, Rockwell Automation (ROK) $48.25B.

Which stock is cheaper, CEG, NRG and ROK?

Nrg Energy (NRG) trades on the lowest price-to-earnings ratio (Constellation Energy (CEG) 27.2x, Nrg Energy (NRG) 25.7x, Rockwell Automation (ROK) 40.2x). On next year's consensus earnings, Nrg Energy (NRG) is cheapest (Constellation Energy (CEG) 21.3x, Nrg Energy (NRG) 11.5x, Rockwell Automation (ROK) 36.1x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Constellation Energy (CEG) grew revenue fastest over the trailing twelve months: Constellation Energy (CEG) +26.0%, Nrg Energy (NRG) +12.8%, Rockwell Automation (ROK) +11.3%.

Which company is more profitable?

Rockwell Automation (ROK) has the highest net margin (Constellation Energy (CEG) 11.1%, Nrg Energy (NRG) 2.4%, Rockwell Automation (ROK) 13.4%). On return on invested capital, Rockwell Automation (ROK) leads (Constellation Energy (CEG) 5.5%, Nrg Energy (NRG) 5.8%, Rockwell Automation (ROK) 21.0%).

Which stock has performed better?

Over the past year Rockwell Automation (ROK) returned the most: Constellation Energy (CEG) -34.1%, Nrg Energy (NRG) -45.4%, Rockwell Automation (ROK) +22.6%. Over five years, Nrg Energy (NRG) compounded fastest (Nrg Energy (NRG) +19.6%/yr, Rockwell Automation (ROK) +7.2%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Constellation Energy (CEG) 0.00%, Nrg Energy (NRG) 0.02%, Rockwell Automation (ROK) 0.00%. Constellation Energy (CEG) and Rockwell Automation (ROK) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Rockwell Automation (ROK) has been the steadiest (Constellation Energy (CEG) 48.5%, Nrg Energy (NRG) 49.8%, Rockwell Automation (ROK) 31.3%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CEG, NRG and ROK?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Rockwell Automation (ROK) leads on 5. 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.