AMPX vs EOSE vs ULBI Stock Comparison

Amprius Technologies, Eos Energy Enterprises and Ultralife Prices as of Oct 29, 2026 Peers: Industry group
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ULBI Ultralife Corp
$15.62 +144.8% 1M +127.7% 1Y
Market cap
$260.28M
P/E
–
Revenue (TTM)
$187.24M
Div. yield
–
Energy Storage Industrials
5 wins

Head to Head

8 decided of 12

Ultralife leads on 5 of the 12 questions below (Ultralife 5, Amprius Technologies 2, Eos Energy Enterprises 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAMPXEOSEULBILeader
Larger companyMarket capitalisation $1.34B $674.37M $260.28M AMPX
Cheaper on earningsLower P/E, profitable companies only -34.1x -0.6x -39.7x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — — 18.6x –
Faster revenue growthRevenue growth, trailing twelve months +143.6% +533.9% +4.7% EOSE
More profitableNet margin, trailing twelve months -35.2% -546.5% -3.5% ULBI
Better return on capitalReturn on invested capital — — -3.2% –
Less leveragedLower net debt / EBITDA — -1.1x -14.1x ULBI
Higher dividend yieldTrailing dividend yield — — — –
Better 1-year returnPrice return, last 12 months -26.9% -86.2% +127.7% ULBI
Better 5-year returnAnnualised price return, 5 years — -28.5%/yr +20.1%/yr ULBI
Less volatileAnnualised volatility, 1 year 99.7% 120.0% 105.8% AMPX
Higher overall scoreMean of the five percentile scores vs peers 51/100 15/100 60/100 ULBI

Percentile Scorecard

AMPXEOSEULBI

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

AxisAMPXEOSEULBI
Valuation 44 #35 of 62 3 #60 of 62 82 #12 of 62
Growth 43 #34 of 59 26 #44 of 59 21 #47 of 59
Profitability 46 #30 of 55 17 #46 of 55 70 #17 of 55
Financial Health 92 #7 of 72 30 #51 of 72 51 #36 of 72
Shareholder Returns 32 #20 of 29 0 #29 of 29 75 #8 of 29
Overall 51 15 60
  • AMPX ranked among 72 companies in Clean Energy Equipment
  • EOSE ranked among 72 companies in Clean Energy Equipment
  • ULBI 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

PeriodAMPXEOSEULBISPY
1 month -4.1%-36.3%+144.8% +0.7%
3 months -3.5%-45.2%+202.7% +3.7%
6 months -56.6%-70.4%+126.4% +7.1%
Year to date +15.8%-82.7%+173.1% +12.8%
1 year -26.9%-86.2%+127.7% +11.9%
3 years +228.8%+24.5%+116.0% +85.2%
3 years, per year +48.7%+7.6%+29.3% +22.8%
5 years —-81.2%+149.5% +67.6%
5 years, per year —-28.5%+20.1% +10.9%
10 years ——+276.4% +262.0%
10 years, per year ——+14.2% +13.7%

Risk

MeasureAMPXEOSEULBISPY
Volatility, 1Y 99.7%120.0%105.8% 12.7%
Downside volatility, 1Y 106.0%124.8%51.4% 12.6%
Beta vs S&P 500, 1Y 3.464.121.23 1.00
Return / volatility, 1Y -0.27-0.721.21 0.94
Max drawdown, 5Y -94.5%-94.6%-68.8% -25.4%
From 52-week high -60.1%-89.7%0.0% -1.2%
52-week high $22.91$19.19$15.62 $779.14
52-week low $7.59$1.62$5.05 $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.

MultipleAMPXEOSEULBI
P/E now vs peer median -34.1xmedian 26.6x -0.6xmedian 26.6x -39.7xmedian 26.6x
P/S now vs peer median 12.2xmedian 2.6x 3.1xmedian 2.6x 1.4xmedian 2.6x
EV/EBITDA now vs peer median -33.9xmedian 18.9x -3.5xmedian 18.9x -110.5xmedian 18.9x
P/FCF now vs peer median -22.8xmedian 30.1x -1.6xmedian 30.1x 128.2xmedian 30.1x
P/B now vs peer median 10.6xmedian 1.9x -0.7xmedian 1.9x 2.0xmedian 1.9x
PEG now vs peer median -4.54median 0.97 0.08median 0.97 0.61median 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 monthsAMPXEOSEULBI
Revenue $109.23M $214.25M $187.24M
Gross profit $24.31M -$181.57M $45.65M
Operating income -$41.15M -$305.61M -$8.34M
Net income -$36.54M -$528.67M -$6.65M
Free cash flow -$58.44M -$420.19M $2.03M
R&D $13.16M $35.73M $13.54M
EPS (diluted) $-0.27 $-3.45 $-0.39
Cash & equivalents $74.52M $305.49M $6.66M
Total debt – $617.12M $44.60M
Shares (diluted) 143.47M 339.80M 16.71M
Enterprise value $1.03B -$668.50M $226.22M

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
MetricAMPXEOSEULBI
P/E -34.1x -0.6x -39.7x
P/FCF -22.8x -1.6x 128.2x
P/Operating cash flow -25.3x -2.2x 50.7x
P/S 12.2x 3.1x 1.4x
P/B 10.6x -0.7x 2.0x
P/Tangible book 10.6x -0.7x 2.1x
EV/EBITDA -33.9x -3.5x -110.5x
EV/EBIT -30.6x -3.2x -35.8x
EV/Revenue 11.5x 4.6x 1.6x
EV/FCF -21.6x -2.3x 146.8x
EV/Operating cash flow -23.8x -3.2x 58.1x
PEG (3Y EPS CAGR) -4.54 0.08 0.61

Growth

14 metrics
MetricAMPXEOSEULBI
Revenue growth (1Y) 143.6% 533.9% 4.7%
Revenue CAGR (3Y) 203.2% 129.1% 9.2%
Gross profit growth (1Y) 390.2% -74.8% 4.6%
Gross profit CAGR (3Y) 65.0% -21.5% 11.6%
Operating income growth (1Y) -4.2% -37.8% -209.1%
Operating income CAGR (3Y) -10.1% -18.2% -65.2%
Net income growth (1Y) 3.9% 35.4% -304.0%
Net income CAGR (3Y) -8.2% -16.9% -66.5%
EPS growth (1Y) 14.2% 19.6% -304.2%
EPS CAGR (3Y) 7.5% -6.9% -65.1%
Operating cash flow growth (1Y) -55.5% -69.0% -70.0%
Operating cash flow CAGR (3Y) -37.2% -18.4% 26.7%
Free cash flow growth (1Y) -75.3% -93.6% -85.4%
Free cash flow CAGR (3Y) -33.4% -27.2% 69.6%

Profitability

14 metrics
MetricAMPXEOSEULBI
Gross margin 22.3% -84.7% 24.4%
EBITDA margin -34.1% -133.3% -1.4%
Operating margin -37.7% -142.6% -4.5%
Pretax margin -37.7% -246.7% -5.1%
Net margin -35.2% -546.5% -3.5%
FCF margin -53.5% -196.1% 1.1%
Operating cash flow margin -48.4% -143.7% 2.7%
Return on equity -35.0% – -5.1%
Return on assets -29.4% -62.0% -3.0%
Return on invested capital – – -3.2%
Return on capital employed -33.8% -44.0% -4.6%
Asset turnover 0.8x 0.3x 0.9x
Cash conversion (OCF / net income) 1.4x 0.6x -0.8x
Stock comp / revenue 7.6% 10.4% 0.3%

Financial Health

11 metrics
MetricAMPXEOSEULBI
Debt / assets – 68.1% 20.6%
Debt / equity – -0.6x 0.3x
Net debt / EBITDA – -1.1x -14.1x
Debt / FCF – -1.5x 22.0x
Liabilities / assets 15.8% 213.7% 38.7%
Equity / assets 84.2% -113.7% 61.3%
Interest coverage – -7.9x -2.3x
Current ratio 7.2x 3.3x 2.9x
Quick ratio 6.3x 2.1x 1.1x
Cash ratio 4.1x 1.9x 0.2x
Altman Z-score 32.63 -3.75 2.75

Shareholder Returns

7 metrics
MetricAMPXEOSEULBI
Dividend yield – – –
Net buyback yield -2.0% -84.8% -0.1%
Shareholder yield -2.0% -84.8% -0.1%
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.

ConsensusAMPXEOSEULBI
Forward P/E – – 18.6xFY2026
EPS, next fiscal year $-0.09FY2026 $-1.29FY2026 $0.84FY2026
EPS growth, the year after – – +2.4%
Revenue, next fiscal year $150.37MFY2026 $317.26MFY2026 $232.61MFY2026
Revenue growth, next FY +106.0%FY2026 +177.8%FY2026 +21.7%FY2026
Revenue growth, the year after +50.8% +87.9% +5.9%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAMPXEOSEULBI
Held by institutions 67.4% 67.1% 32.1%
Institutions holding 260 351 54
Change in shares held, QoQ +14.9% +11.3% +0.5%
Institutions buying 174 214 20
Institutions selling 63 101 15
Buyers to sellers 2.76 2.12 1.33

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.

AMPXEOSEULBI
AMPX 1.00 0.45 0.10
EOSE 0.45 1.00 0.11
ULBI 0.10 0.11 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, AMPX, EOSE and ULBI?

Amprius Technologies (AMPX) is the largest by market capitalisation: Amprius Technologies (AMPX) $1.34B, Eos Energy Enterprises (EOSE) $674.37M, Ultralife (ULBI) $260.28M.

Which company is growing faster?

Eos Energy Enterprises (EOSE) grew revenue fastest over the trailing twelve months: Amprius Technologies (AMPX) +143.6%, Eos Energy Enterprises (EOSE) +533.9%, Ultralife (ULBI) +4.7%.

Which company is more profitable?

Ultralife (ULBI) has the highest net margin (Amprius Technologies (AMPX) -35.2%, Eos Energy Enterprises (EOSE) -546.5%, Ultralife (ULBI) -3.5%).

Which stock has performed better?

Over the past year Ultralife (ULBI) returned the most: Amprius Technologies (AMPX) -26.9%, Eos Energy Enterprises (EOSE) -86.2%, Ultralife (ULBI) +127.7%. Over five years, Ultralife (ULBI) compounded fastest (Eos Energy Enterprises (EOSE) -28.5%/yr, Ultralife (ULBI) +20.1%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Amprius Technologies (AMPX) has been the steadiest (Amprius Technologies (AMPX) 99.7%, Eos Energy Enterprises (EOSE) 120.0%, Ultralife (ULBI) 105.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AMPX, EOSE and ULBI?

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