ENS vs QS vs AMPX Stock Comparison

EnerSys, QuantumScape and Amprius Technologies Prices as of Oct 23, 2026 Peers: Industry group
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ENS EnerSys
$165.99 -7.6% 1M +37.0% 1Y
Market cap
$6.20B
P/E
17.6x
Revenue (TTM)
$3.79B
Div. yield
–
Energy Storage Industrials
6 wins
QS QuantumScape Corp
$4.03 -17.9% 1M -72.5% 1Y
Market cap
$2.44B
P/E
–
Revenue (TTM)
—
Div. yield
–
Energy Storage Industrials

Head to Head

7 decided of 12

EnerSys leads on 6 of the 12 questions below (EnerSys 6, Amprius Technologies 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionENSQSAMPXLeader
Larger companyMarket capitalisation $6.20B $2.44B $1.20B ENS
Cheaper on earningsLower P/E, profitable companies only 17.6x -6.4x -31.3x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 11.6x — — –
Faster revenue growthRevenue growth, trailing twelve months +3.7% — +143.6% AMPX
More profitableNet margin, trailing twelve months 9.3% — -35.2% ENS
Better return on capitalReturn on invested capital 13.8% — — –
Less leveragedLower net debt / EBITDA 0.8x — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +37.0% -72.5% -29.8% ENS
Better 5-year returnAnnualised price return, 5 years +16.7%/yr -29.5%/yr — ENS
Less volatileAnnualised volatility, 1 year 42.3% 71.3% 100.3% ENS
Higher overall scoreMean of the five percentile scores vs peers 82/100 49/100 52/100 ENS

Percentile Scorecard

ENSQSAMPX

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

AxisENSQSAMPX
Valuation 92 #6 of 61 42 #36 of 61 43 #35 of 61
Growth 60 #24 of 58 44 #33 of 58 46 #32 of 58
Profitability 100 #1 of 55 35 #36 of 55 46 #30 of 55
Financial Health 60 #29 of 71 86 #11 of 71 91 #7 of 71
Shareholder Returns 97 #2 of 31 40 #19 of 31 33 #21 of 31
Overall 82 49 52
  • ENS ranked among 71 companies in Clean Energy Equipment
  • QS ranked among 71 companies in Clean Energy Equipment
  • AMPX 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

PeriodENSQSAMPXSPY
1 month -7.6%-17.9%-15.8% -1.0%
3 months -13.0%-17.6%-11.4% +2.9%
6 months -20.7%-44.2%-60.4% +6.4%
Year to date +13.1%-61.3%+3.8% +11.4%
1 year +37.0%-72.5%-29.8% +13.1%
3 years +88.2%-31.5%+206.7% +79.4%
3 years, per year +23.5%-11.8%+45.3% +21.5%
5 years +116.2%-82.6%— +67.7%
5 years, per year +16.7%-29.5%— +10.9%
10 years +152.6%—— +255.2%
10 years, per year +9.7%—— +13.5%

Risk

MeasureENSQSAMPXSPY
Volatility, 1Y 42.3%71.3%100.3% 12.7%
Downside volatility, 1Y 45.3%72.7%106.0% 12.7%
Beta vs S&P 500, 1Y 1.743.063.43 1.00
Return / volatility, 1Y 0.88-1.02-0.30 1.03
Max drawdown, 5Y -33.0%-91.4%-94.5% -25.4%
From 52-week high -31.8%-78.1%-64.3% -2.5%
52-week high $243.34$18.44$22.91 $779.14
52-week low $120.88$3.89$7.59 $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.

MultipleENSQSAMPX
P/E now vs peer median 17.2xmedian 24.1x -6.5xmedian 24.1x -30.6xmedian 24.1x
P/S now vs peer median 1.6xmedian 2.2x —median 2.2x 11.0xmedian 2.2x
EV/EBITDA now vs peer median 10.7xmedian 17.4x -4.6xmedian 17.4x -30.1xmedian 17.4x
P/FCF now vs peer median 8.4xmedian 27.4x -9.7xmedian 27.4x -20.5xmedian 27.4x
P/B now vs peer median 3.1xmedian 1.8x 2.5xmedian 1.8x 9.5xmedian 1.8x
PEG now vs peer median 0.76median 0.76 -0.51median 0.76 -4.07median 0.76

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 monthsENSQSAMPX
Revenue $3.79B – $109.23M
Gross profit $1.16B – $24.31M
Operating income $491.39M -$418.18M -$41.15M
Net income $352.55M -$383.62M -$36.54M
Free cash flow $717.31M -$258.79M -$58.44M
R&D – $327.75M $13.16M
EPS (diluted) $9.37 $-0.62 $-0.27
Cash & equivalents $530.66M $75.60M $74.52M
Total debt $1.04B – –
Shares (diluted) 37.63M 620.56M 143.47M
Enterprise value $4.39B -$1.11B $900.95M

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
MetricENSQSAMPX
P/E 17.2x -6.5x -30.6x
P/FCF 8.4x -9.7x -20.5x
P/Operating cash flow 7.8x -11.0x -22.6x
P/S 1.6x – 11.0x
P/B 3.1x 2.5x 9.5x
P/Tangible book 3.7x 2.5x 9.5x
EV/EBITDA 10.7x -4.6x -30.1x
EV/EBIT 13.3x -4.0x -27.3x
EV/Revenue 1.7x – 10.3x
EV/FCF 9.1x -6.5x -19.2x
EV/Operating cash flow 8.4x -7.4x -21.2x
PEG (3Y EPS CAGR) 0.76 -0.51 -4.07

Growth

14 metrics
MetricENSQSAMPX
Revenue growth (1Y) 3.7% – 143.6%
Revenue CAGR (3Y) 0.7% – 203.2%
Gross profit growth (1Y) 4.6% – 390.2%
Gross profit CAGR (3Y) 9.0% – 65.0%
Operating income growth (1Y) 6.9% 14.8% -4.2%
Operating income CAGR (3Y) 15.7% 3.7% -10.1%
Net income growth (1Y) 0.4% 14.7% 3.9%
Net income CAGR (3Y) 18.5% 4.5% -8.2%
EPS growth (1Y) 4.9% 19.1% 14.2%
EPS CAGR (3Y) 22.7% 12.9% 7.5%
Operating cash flow growth (1Y) 209.6% 7.1% -55.5%
Operating cash flow CAGR (3Y) 22.1% 2.5% -37.2%
Free cash flow growth (1Y) 439.5% 7.6% -75.3%
Free cash flow CAGR (3Y) 27.6% 9.9% -33.4%

Profitability

14 metrics
MetricENSQSAMPX
Gross margin 30.5% – 22.3%
EBITDA margin 16.1% – -34.1%
Operating margin 13.0% – -37.7%
Pretax margin 11.0% – -37.7%
Net margin 9.3% – -35.2%
FCF margin 18.9% – -53.5%
Operating cash flow margin 20.5% – -48.4%
Return on equity 18.2% -37.5% -35.0%
Return on assets 8.9% -33.5% -29.4%
Return on invested capital 13.8% – –
Return on capital employed 15.3% -38.3% -33.8%
Asset turnover 1.0x – 0.8x
Cash conversion (OCF / net income) 2.2x 0.6x 1.4x
Stock comp / revenue 0.7% – 7.6%

Financial Health

11 metrics
MetricENSQSAMPX
Debt / assets 26.3% – –
Debt / equity 0.5x – –
Net debt / EBITDA 0.8x – –
Debt / FCF 1.4x – –
Liabilities / assets 50.1% 11.1% 15.8%
Equity / assets 49.9% 88.9% 84.2%
Interest coverage 9.9x -221.6x –
Current ratio 2.8x 16.1x 7.2x
Quick ratio 1.4x 15.8x 6.3x
Cash ratio 0.7x 15.8x 4.1x
Altman Z-score 4.62 – 29.09

Shareholder Returns

7 metrics
MetricENSQSAMPX
Dividend yield 0.6% – –
Net buyback yield 3.7% -0.5% -2.3%
Shareholder yield 4.3% -0.5% -2.3%
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.

ConsensusENSQSAMPX
Forward P/E 11.6xFY2026 – –
EPS, next fiscal year $14.25FY2026 $-0.63FY2026 $-0.09FY2026
EPS growth, next FY +34.9%FY2026 – –
EPS growth, the year after -1.3% – –
Revenue, next fiscal year $4.09BFY2026 $0.00FY2026 $150.37MFY2026
Revenue growth, next FY +9.1%FY2026 – +106.0%FY2026
Revenue growth, the year after +4.8% – +50.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersENSQSAMPX
Held by institutions 98.2% 33.9% 67.4%
Institutions holding 550 451 259
Change in shares held, QoQ +3.3% -10.0% +14.9%
Institutions buying 310 258 173
Institutions selling 187 90 63
Buyers to sellers 1.66 2.87 2.75

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.

ENSQSAMPX
ENS 1.00 0.44 0.44
QS 0.44 1.00 0.63
AMPX 0.44 0.63 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ENS, QS and AMPX?

EnerSys (ENS) is the largest by market capitalisation: EnerSys (ENS) $6.20B, QuantumScape (QS) $2.44B, Amprius Technologies (AMPX) $1.20B.

Which company is growing faster?

Amprius Technologies (AMPX) grew revenue fastest over the trailing twelve months: EnerSys (ENS) +3.7%, Amprius Technologies (AMPX) +143.6%.

Which company is more profitable?

EnerSys (ENS) has the highest net margin (EnerSys (ENS) 9.3%, Amprius Technologies (AMPX) -35.2%).

Which stock has performed better?

Over the past year EnerSys (ENS) returned the most: EnerSys (ENS) +37.0%, QuantumScape (QS) -72.5%, Amprius Technologies (AMPX) -29.8%. Over five years, EnerSys (ENS) compounded fastest (EnerSys (ENS) +16.7%/yr, QuantumScape (QS) -29.5%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, EnerSys (ENS) has been the steadiest (EnerSys (ENS) 42.3%, QuantumScape (QS) 71.3%, Amprius Technologies (AMPX) 100.3%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, ENS, QS and AMPX?

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