CEPL vs CMI vs AMSC Stock Comparison

Capstone Energy Plus, Cummins and American Superconductor Prices as of Oct 27, 2026 Peers: Industry group
CMI Cummins Inc
$530.34 +1.0% 1M +26.0% 1Y
Market cap
$73.17B
P/E
27.0x
Revenue (TTM)
$34.71B
Div. yield
–
Heavy Equipment Industrials
7 wins

Head to Head

10 decided of 12

Cummins leads on 7 of the 12 questions below (Cummins 7, Capstone Energy Plus 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCEPLCMIAMSCLeader
Larger companyMarket capitalisation $104.38M $73.17B $1.28B CMI
Cheaper on earningsLower P/E, profitable companies only 29.2x 27.0x — CMI
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 16.9x 30.7x CMI
Faster revenue growthRevenue growth, trailing twelve months +5.4% +2.9% — CEPL
More profitableNet margin, trailing twelve months 3.5% 7.8% — CMI
Better return on capitalReturn on invested capital — 13.6% — –
Less leveragedLower net debt / EBITDA -0.7x 0.7x — CEPL
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months — +26.0% -52.2% CMI
Better 5-year returnAnnualised price return, 5 years — +16.9%/yr +8.7%/yr CMI
Less volatileAnnualised volatility, 1 year 113.2% 37.1% 85.9% CMI
Higher overall scoreMean of the five percentile scores vs peers 76/100 59/100 — CEPL

Percentile Scorecard

CEPLCMIAMSC

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

AxisCEPLCMIAMSC
Valuation 93 #5 of 61 50 #103 of 203 –
Growth 91 #6 of 58 52 #90 of 188 –
Profitability 85 #9 of 55 71 #54 of 183 –
Financial Health 23 #55 of 71 52 #104 of 217 76 #18 of 71
Shareholder Returns 86 #5 of 30 69 #48 of 153 –
Overall 76 59 –
  • CEPL ranked among 71 companies in Clean Energy Equipment
  • CMI ranked among 222 companies in Machinery
  • AMSC ranked among 71 companies in Clean Energy Equipment

Price Performance

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

Returns

PeriodCEPLCMIAMSCSPY
1 month -35.5%+1.0%-7.9% -0.2%
3 months -59.1%-17.3%-3.9% +3.9%
6 months —-17.5%-41.8% +8.2%
Year to date —+3.9%-4.0% +12.9%
1 year —+26.0%-52.2% +12.3%
3 years —+146.4%+344.9% +87.4%
3 years, per year —+35.1%+64.5% +23.3%
5 years —+118.5%+51.8% +67.9%
5 years, per year —+16.9%+8.7% +10.9%
10 years —+320.0%+302.2% +261.1%
10 years, per year —+15.4%+14.9% +13.7%

Risk

MeasureCEPLCMIAMSCSPY
Volatility, 1Y 113.2%37.1%85.9% 12.7%
Downside volatility, 1Y 121.1%38.0%98.8% 12.7%
Beta vs S&P 500, 1Y 3.671.643.47 1.00
Return / volatility, 1Y —0.70-0.61 0.97
Max drawdown, 5Y -77.8%-30.8%-82.9% -25.4%
From 52-week high -74.4%-27.1%-56.1% -1.2%
52-week high $11.88$727.59$63.01 $779.14
52-week low $2.64$414.30$25.01 $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.

MultipleCEPLCMIAMSC
P/E now vs peer median 29.2xmedian 27.2x 26.9xmedian 25.2x —median 27.2x
P/S now vs peer median 1.0xmedian 2.4x 2.1xmedian 1.9x —median 2.4x
EV/EBITDA now vs peer median 9.8xmedian 18.4x 15.2xmedian 14.0x —median 18.4x
P/FCF now vs peer median 34.4xmedian 28.6x 21.7xmedian 21.7x —median 28.6x
P/B now vs peer median -2.2xmedian 1.7x 5.3xmedian 2.3x 2.4xmedian 1.7x
PEG now vs peer median 1.06median 0.79 8.40median 1.32 —median 0.79

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 monthsCEPLCMIAMSC
Revenue $103.06M $34.71B –
Gross profit $35.07M $8.79B –
Operating income $4.53M $3.89B –
Net income $3.56M $2.83B –
Free cash flow $2.87M $3.37B –
R&D $4.03M $1.44B –
EPS (diluted) $0.10 $19.60 –
Cash & equivalents $32.30M $3.18B $140.69M
Total debt $109.19M $7.35B –
Shares (diluted) 34.34M 138.50M 44.94M
Enterprise value $20.29M $69.25B $576.37M

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
MetricCEPLCMIAMSC
P/E 29.2x 26.9x –
P/FCF 34.4x 21.7x –
P/Operating cash flow 22.1x 15.7x –
P/S 1.0x 2.1x –
P/B -2.2x 5.3x 2.4x
P/Tangible book -2.0x 6.2x 2.4x
EV/EBITDA 9.8x 15.2x –
EV/EBIT 20.3x 19.6x –
EV/Revenue 0.9x 2.2x –
EV/FCF 32.0x 22.7x –
EV/Operating cash flow 20.6x 16.4x –
PEG (3Y EPS CAGR) 1.06 8.40 –

Growth

14 metrics
MetricCEPLCMIAMSC
Revenue growth (1Y) 5.4% 2.9% –
Revenue CAGR (3Y) 9.3% 2.5% –
Gross profit growth (1Y) 29.5% 1.7% –
Gross profit CAGR (3Y) 52.0% 4.8% –
Operating income growth (1Y) 305.8% -6.0% –
Operating income CAGR (3Y) 30.7% 4.1% –
Net income growth (1Y) 190.1% -7.8% –
Net income CAGR (3Y) 28.8% 2.9% –
EPS growth (1Y) 151.0% -7.7% –
EPS CAGR (3Y) 27.5% 3.2% –
Operating cash flow growth (1Y) 11.9% 63.4% –
Operating cash flow CAGR (3Y) 35.5% 28.8% –
Free cash flow growth (1Y) -8.6% 103.8% –
Free cash flow CAGR (3Y) 29.3% 45.3% –

Profitability

14 metrics
MetricCEPLCMIAMSC
Gross margin 34.0% 25.3% –
EBITDA margin 9.1% 14.4% –
Operating margin 4.4% 11.2% –
Pretax margin 3.4% 11.1% –
Net margin 3.5% 7.8% –
FCF margin 2.8% 9.7% –
Operating cash flow margin 4.3% 13.4% –
Return on equity – 20.7% –
Return on assets 3.1% 8.1% –
Return on invested capital – 13.6% –
Return on capital employed 12.2% 16.0% –
Asset turnover 0.9x 1.0x –
Cash conversion (OCF / net income) 1.3x 1.6x –
Stock comp / revenue 0.8% – –

Financial Health

11 metrics
MetricCEPLCMIAMSC
Debt / assets 22.1% 20.6% –
Debt / equity -0.6x 0.5x –
Net debt / EBITDA -0.7x 0.7x –
Debt / FCF 8.8x 2.2x –
Liabilities / assets 139.4% 61.0% 24.9%
Equity / assets -39.4% 39.0% 75.1%
Interest coverage 1.1x 12.1x –
Current ratio 1.0x 1.7x 2.4x
Quick ratio 0.6x 1.0x 1.6x
Cash ratio 0.4x 0.4x 1.0x
Altman Z-score -10.48 4.54 –

Shareholder Returns

7 metrics
MetricCEPLCMIAMSC
Dividend yield – 1.5% –
Net buyback yield 0.4% 0.6% –
Shareholder yield 0.4% 2.2% –
Payout ratio (earnings) – – –
Payout ratio (FCF) – – –
Dividend growth (1Y) – – –
Dividend CAGR (3Y) – – –

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.

ConsensusCEPLCMIAMSC
Forward P/E – 16.9xFY2026 30.7xFY2026
EPS, next fiscal year $-0.01FY2026 $31.39FY2026 $0.90FY2026
EPS growth, next FY – +31.9%FY2026 -75.0%FY2026
EPS growth, the year after – +14.7% +40.0%
Revenue, next fiscal year $115.36MFY2026 $35.38BFY2026 $383.43MFY2026
Revenue growth, next FY +8.8%FY2026 +5.1%FY2026 +28.2%FY2026
Revenue growth, the year after +28.2% +11.3% +15.7%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCEPLCMIAMSC
Held by institutions – 85.4% 73.7%
Institutions holding – 2,106 277
Change in shares held, QoQ – +1.0% +6.4%
Institutions buying – 1,049 173
Institutions selling – 728 77
Buyers to sellers – 1.44 2.25

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.

CEPLCMIAMSC
CEPL 1.00 0.38 0.64
CMI 0.38 1.00 0.36
AMSC 0.64 0.36 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, CEPL, CMI and AMSC?

Cummins (CMI) is the largest by market capitalisation: Capstone Energy Plus (CEPL) $104.38M, Cummins (CMI) $73.17B, American Superconductor (AMSC) $1.28B.

Which stock is cheaper, CEPL, CMI and AMSC?

Cummins (CMI) trades on the lowest price-to-earnings ratio (Capstone Energy Plus (CEPL) 29.2x, Cummins (CMI) 27.0x). On next year's consensus earnings, Cummins (CMI) is cheapest (Cummins (CMI) 16.9x, American Superconductor (AMSC) 30.7x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Capstone Energy Plus (CEPL) grew revenue fastest over the trailing twelve months: Capstone Energy Plus (CEPL) +5.4%, Cummins (CMI) +2.9%.

Which company is more profitable?

Cummins (CMI) has the highest net margin (Capstone Energy Plus (CEPL) 3.5%, Cummins (CMI) 7.8%).

Which stock has performed better?

Over the past year Cummins (CMI) returned the most: Cummins (CMI) +26.0%, American Superconductor (AMSC) -52.2%. Over five years, Cummins (CMI) compounded fastest (Cummins (CMI) +16.9%/yr, American Superconductor (AMSC) +8.7%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Cummins (CMI) has been the steadiest (Capstone Energy Plus (CEPL) 113.2%, Cummins (CMI) 37.1%, American Superconductor (AMSC) 85.9%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CEPL, CMI and AMSC?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Cummins (CMI) leads on 7. 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.