CETY vs HYLN vs AMSC Stock Comparison

Clean Energy Technologies, Hyliion Holdings and American Superconductor Prices as of Oct 29, 2026 Peers: Industry group
HYLN Hyliion Holdings Corp.
$3.42 -14.7% 1M +50.7% 1Y
Market cap
$574.05M
P/E
–
Revenue (TTM)
$9.25M
Div. yield
–
Power Equipment Industrials
3 wins

Head to Head

7 decided of 12

American Superconductor leads on 3 of the 12 questions below (American Superconductor 3, Hyliion Holdings 3, Clean Energy Technologies 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCETYHYLNAMSCLeader
Larger companyMarket capitalisation $11.10M $574.05M $1.23B AMSC
Cheaper on earningsLower P/E, profitable companies only -1.6x -11.0x — –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — — 31.2x –
Faster revenue growthRevenue growth, trailing twelve months +89.4% +163.2% — HYLN
More profitableNet margin, trailing twelve months -258.7% -564.3% — CETY
Better return on capitalReturn on invested capital -30.7% — — –
Less leveragedLower net debt / EBITDA -2.8x — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -62.3% +50.7% -55.5% HYLN
Better 5-year returnAnnualised price return, 5 years — -15.8%/yr +8.8%/yr AMSC
Less volatileAnnualised volatility, 1 year 141.5% 98.6% 85.4% AMSC
Higher overall scoreMean of the five percentile scores vs peers 18/100 57/100 — HYLN

Percentile Scorecard

CETYHYLNAMSC

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

AxisCETYHYLNAMSC
Valuation 15 #53 of 62 33 #42 of 62 –
Growth 17 #49 of 59 90 #7 of 59 –
Profitability 15 #47 of 55 13 #48 of 55 –
Financial Health 27 #53 of 72 93 #6 of 72 78 #17 of 72
Shareholder Returns – – –
Overall 18 57 –
  • CETY ranked among 72 companies in Clean Energy Equipment
  • HYLN ranked among 72 companies in Clean Energy Equipment
  • AMSC ranked among 72 companies in Clean Energy Equipment

Price Performance

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

Returns

PeriodCETYHYLNAMSCSPY
1 month -3.1%-14.7%-3.8% +0.7%
3 months +6.7%-5.0%-4.8% +3.7%
6 months +33.8%+79.1%-47.6% +7.1%
Year to date +30.1%+85.9%-2.5% +12.8%
1 year -62.3%+50.7%-55.5% +11.9%
3 years -96.3%+478.0%+351.0% +85.2%
3 years, per year -66.6%+79.5%+65.3% +22.8%
5 years —-57.7%+52.6% +67.6%
5 years, per year —-15.8%+8.8% +10.9%
10 years ——+306.5% +262.0%
10 years, per year ——+15.1% +13.7%

Risk

MeasureCETYHYLNAMSCSPY
Volatility, 1Y 141.5%98.6%85.4% 12.7%
Downside volatility, 1Y 124.2%92.9%98.5% 12.6%
Beta vs S&P 500, 1Y 0.813.173.47 1.00
Return / volatility, 1Y -0.440.51-0.65 0.94
Max drawdown, 5Y -99.4%-94.0%-82.9% -25.4%
From 52-week high -62.3%-57.8%-55.5% -1.2%
52-week high $2.52$8.10$63.01 $779.14
52-week low $0.46$1.58$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.

MultipleCETYHYLNAMSC
P/E now vs peer median -1.7xmedian 26.6x -11.7xmedian 26.6x —median 26.6x
P/S now vs peer median 4.4xmedian 2.6x 66.1xmedian 2.6x —median 2.6x
EV/EBITDA now vs peer median -12.9xmedian 18.9x -10.7xmedian 18.9x —median 18.9x
P/FCF now vs peer median -1.4xmedian 30.1x -10.8xmedian 30.1x —median 30.1x
P/B now vs peer median 1.9xmedian 1.9x 3.6xmedian 1.9x 2.4xmedian 1.9x
PEG now vs peer median 0.30median 0.97 -0.38median 0.97 —median 0.97

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 monthsCETYHYLNAMSC
Revenue $2.64M $9.25M –
Gross profit -$36.28K $603.00K –
Operating income -$2.89M -$58.73M –
Net income -$6.83M -$52.19M –
Free cash flow -$8.05M -$56.62M –
R&D – $37.27M –
EPS (diluted) $-0.56 $-0.29 –
Cash & equivalents $19.74K $13.20M $140.69M
Total debt $11.36M – –
Shares (diluted) 12.17M 178.44M 44.94M
Enterprise value $9.38M $239.94M $525.45M

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
MetricCETYHYLNAMSC
P/E -1.7x -11.7x –
P/FCF -1.4x -10.8x –
P/Operating cash flow -1.4x -14.4x –
P/S 4.4x 66.1x –
P/B 1.9x 3.6x 2.4x
P/Tangible book 2.1x 3.6x 2.5x
EV/EBITDA -12.9x -10.7x –
EV/EBIT -5.1x -9.3x –
EV/Revenue 5.6x 59.1x –
EV/FCF -1.8x -9.7x –
EV/Operating cash flow -1.8x -12.9x –
PEG (3Y EPS CAGR) 0.30 -0.38 –

Growth

14 metrics
MetricCETYHYLNAMSC
Revenue growth (1Y) 89.4% 163.2% –
Revenue CAGR (3Y) -8.2% 62.1% –
Gross profit growth (1Y) -103.4% 154.4% –
Gross profit CAGR (3Y) -27.5% 29.7% –
Operating income growth (1Y) -8.2% 11.9% –
Operating income CAGR (3Y) -12.8% 29.6% –
Net income growth (1Y) -69.6% 7.3% –
Net income CAGR (3Y) -79.3% 30.7% –
EPS growth (1Y) 48.7% 8.9% –
EPS CAGR (3Y) -5.7% 30.4% –
Operating cash flow growth (1Y) -130.6% 10.5% –
Operating cash flow CAGR (3Y) -30.4% 30.3% –
Free cash flow growth (1Y) -130.6% 16.0% –
Free cash flow CAGR (3Y) -30.4% 24.4% –

Profitability

14 metrics
MetricCETYHYLNAMSC
Gross margin -1.4% 6.5% –
EBITDA margin -43.2% -551.3% –
Operating margin -109.4% -635.2% –
Pretax margin -258.7% -564.5% –
Net margin -258.7% -564.3% –
FCF margin -304.9% -612.3% –
Operating cash flow margin -304.9% -458.2% –
Return on equity -106.7% -29.7% –
Return on assets -49.9% -28.2% –
Return on invested capital -30.7% – –
Return on capital employed -47.3% -33.4% –
Asset turnover 0.2x 0.0x –
Cash conversion (OCF / net income) 1.2x 0.8x –
Stock comp / revenue – 64.8% –

Financial Health

11 metrics
MetricCETYHYLNAMSC
Debt / assets 22.9% – –
Debt / equity 0.5x – –
Net debt / EBITDA -2.8x – –
Debt / FCF -0.4x – –
Liabilities / assets 57.0% 5.6% 24.9%
Equity / assets 43.0% 94.4% 75.1%
Interest coverage -0.7x – –
Current ratio 1.0x 7.6x 2.4x
Quick ratio 0.3x 7.1x 1.6x
Cash ratio 0.0x 6.8x 1.0x
Altman Z-score -3.34 34.04 –

Shareholder Returns

7 metrics
MetricCETYHYLNAMSC
Dividend yield – – –
Net buyback yield – – –
Shareholder yield – – –
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.

ConsensusCETYHYLNAMSC
Forward P/E – – 31.2xFY2026
EPS, next fiscal year – $-0.32FY2026 $0.90FY2026
EPS growth, next FY – – -75.0%FY2026
EPS growth, the year after – – +40.0%
Revenue, next fiscal year – $14.80MFY2026 $383.43MFY2026
Revenue growth, next FY – +325.2%FY2026 +28.2%FY2026
Revenue growth, the year after – +127.8% +15.7%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCETYHYLNAMSC
Held by institutions – 33.4% 73.7%
Institutions holding – 168 278
Change in shares held, QoQ – +19.5% +6.4%
Institutions buying – 106 173
Institutions selling – 38 77
Buyers to sellers – 2.79 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.

CETYHYLNAMSC
CETY 1.00 0.04 0.04
HYLN 0.04 1.00 0.42
AMSC 0.04 0.42 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, CETY, HYLN and AMSC?

American Superconductor (AMSC) is the largest by market capitalisation: Clean Energy Technologies (CETY) $11.10M, Hyliion Holdings (HYLN) $574.05M, American Superconductor (AMSC) $1.23B.

Which company is growing faster?

Hyliion Holdings (HYLN) grew revenue fastest over the trailing twelve months: Clean Energy Technologies (CETY) +89.4%, Hyliion Holdings (HYLN) +163.2%.

Which company is more profitable?

Clean Energy Technologies (CETY) has the highest net margin (Clean Energy Technologies (CETY) -258.7%, Hyliion Holdings (HYLN) -564.3%).

Which stock has performed better?

Over the past year Hyliion Holdings (HYLN) returned the most: Clean Energy Technologies (CETY) -62.3%, Hyliion Holdings (HYLN) +50.7%, American Superconductor (AMSC) -55.5%. Over five years, American Superconductor (AMSC) compounded fastest (Hyliion Holdings (HYLN) -15.8%/yr, American Superconductor (AMSC) +8.8%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, American Superconductor (AMSC) has been the steadiest (Clean Energy Technologies (CETY) 141.5%, Hyliion Holdings (HYLN) 98.6%, American Superconductor (AMSC) 85.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CETY, HYLN 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, American Superconductor (AMSC) 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.