AMBP vs CSTM vs KALU Stock Comparison

Ardagh Metal Packaging, Constellium Se and Kaiser Aluminum Prices as of Oct 29, 2026 Peers: Industry group
CSTM Constellium Se
$24.00 -2.4% 1M +47.5% 1Y
Market cap
$3.09B
P/E
5.4x
Revenue (TTM)
$10.05B
Div. yield
–
Metal Fabrication Industrials
9 wins
KALU Kaiser Aluminum Corp
$119.83 -20.7% 1M +29.4% 1Y
Market cap
$1.87B
P/E
8.6x
Revenue (TTM)
$4.51B
Div. yield
–
Aluminum Basic Materials
1 win

Head to Head

11 decided of 12

Constellium Se leads on 9 of the 12 questions below (Constellium Se 9, Kaiser Aluminum 1, Ardagh Metal Packaging 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAMBPCSTMKALULeader
Larger companyMarket capitalisation $2.67B $3.09B $1.87B CSTM
Cheaper on earningsLower P/E, profitable companies only 46.1x 5.4x 8.6x CSTM
Cheaper on forward earningsLower price / next fiscal year consensus EPS 16.8x 5.7x 8.1x CSTM
Faster revenue growthRevenue growth, trailing twelve months +17.0% +26.1% +40.4% KALU
More profitableNet margin, trailing twelve months 0.9% 5.7% 4.8% CSTM
Better return on capitalReturn on invested capital 5.6% 26.9% 12.8% CSTM
Less leveragedLower net debt / EBITDA 5.0x 1.1x 2.1x CSTM
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +23.8% +47.5% +29.4% CSTM
Better 5-year returnAnnualised price return, 5 years -14.4%/yr +5.5%/yr +4.3%/yr CSTM
Less volatileAnnualised volatility, 1 year 33.9% 44.7% 57.9% AMBP
Higher overall scoreMean of the five percentile scores vs peers 68/100 75/100 68/100 CSTM

Percentile Scorecard

AMBPCSTMKALU

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

AxisAMBPCSTMKALU
Valuation 81 #4 of 17 98 #5 of 203 89 #19 of 163
Growth 87 #3 of 16 100 #1 of 188 85 #23 of 148
Profitability 57 #7 of 15 67 #61 of 183 60 #50 of 123
Financial Health 14 #13 of 15 21 #172 of 216 22 #129 of 164
Shareholder Returns 100 #1 of 14 91 #14 of 152 83 #19 of 108
Overall 68 75 68
  • AMBP ranked among 17 companies in Packaging
  • CSTM ranked among 222 companies in Machinery
  • KALU ranked among 176 companies in Metals and Mining

Price Performance

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

Returns

PeriodAMBPCSTMKALUSPY
1 month +4.4%-2.4%-20.7% +0.7%
3 months -6.4%-16.0%-25.0% +3.7%
6 months +17.7%-23.3%-29.7% +7.1%
Year to date +10.5%+27.3%+4.3% +12.8%
1 year +23.8%+47.5%+29.4% +11.9%
3 years +31.3%+50.7%+112.1% +85.2%
3 years, per year +9.5%+14.6%+28.5% +22.8%
5 years -54.0%+30.4%+23.4% +67.6%
5 years, per year -14.4%+5.5%+4.3% +10.9%
10 years —+357.1%+66.5% +262.0%
10 years, per year —+16.4%+5.2% +13.7%

Risk

MeasureAMBPCSTMKALUSPY
Volatility, 1Y 33.9%44.7%57.9% 12.7%
Downside volatility, 1Y 33.8%41.7%67.3% 12.6%
Beta vs S&P 500, 1Y 0.711.942.04 1.00
Return / volatility, 1Y 0.701.060.51 0.94
Max drawdown, 5Y -74.6%-66.3%-54.3% -25.4%
From 52-week high -15.5%-33.6%-38.7% -1.2%
52-week high $5.36$36.15$195.63 $779.14
52-week low $3.32$14.75$88.63 $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.

MultipleAMBPCSTMKALU
P/E now vs peer median 46.7xmedian 19.7x 5.6xmedian 25.8x 9.0xmedian 13.2x
P/S now vs peer median 0.4xmedian 0.7x 0.3xmedian 1.9x 0.4xmedian 3.1x
EV/EBITDA now vs peer median 8.4xmedian 10.1x 3.2xmedian 14.6x 6.2xmedian 7.2x
P/FCF now vs peer median 4.4xmedian 15.9x 10.1xmedian 22.2x 15.7xmedian 15.2x
P/B now vs peer median -3.6xmedian 1.5x 2.4xmedian 2.2x 2.0xmedian 2.2x
PEG now vs peer median 0.67median 0.80 —median 1.45 0.06median 0.30

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 monthsAMBPCSTMKALU
Revenue $6.26B $10.05B $4.51B
Gross profit $766.00M $1.61B $601.70M
Operating income $337.00M $1.20B $347.30M
Net income $147.00M $576.00M $218.50M
Free cash flow $612.00M $319.00M $124.80M
R&D – $53.00M $2.20M
EPS (diluted) $0.10 $4.13 $12.94
Cash & equivalents $213.00M $158.00M $117.30M
Total debt $17.45B $1.82B $1.09B
Shares (diluted) 597.70M 138.99M 16.89M
Enterprise value $1.61B $2.50B $1.66B

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
MetricAMBPCSTMKALU
P/E 46.7x 5.6x 9.0x
P/FCF 4.4x 10.1x 15.7x
P/Operating cash flow 5.5x 5.1x 8.6x
P/S 0.4x 0.3x 0.4x
P/B -3.6x 2.4x 2.0x
P/Tangible book -3.6x 2.6x 2.1x
EV/EBITDA 8.4x 3.2x 6.2x
EV/EBIT 19.9x 4.1x 8.5x
EV/Revenue 1.1x 0.5x 0.7x
EV/FCF 10.9x 15.3x 23.5x
EV/Operating cash flow 13.6x 7.7x 12.9x
PEG (3Y EPS CAGR) 0.67 – 0.06

Growth

14 metrics
MetricAMBPCSTMKALU
Revenue growth (1Y) 17.0% 26.1% 40.4%
Revenue CAGR (3Y) 9.6% – 12.8%
Gross profit growth (1Y) 12.2% 54.0% 45.0%
Gross profit CAGR (3Y) 12.9% – 25.3%
Operating income growth (1Y) 26.7% 82.1% 108.3%
Operating income CAGR (3Y) 25.1% – 88.4%
Net income growth (1Y) 167.3% 400.9% 109.9%
Net income CAGR (3Y) -9.0% – 154.9%
EPS growth (1Y) 480.0% 413.6% 106.5%
EPS CAGR (3Y) 69.4% – 151.1%
Operating cash flow growth (1Y) 5.8% 92.2% 29.7%
Operating cash flow CAGR (3Y) 2.3% – 19.6%
Free cash flow growth (1Y) 9.3% 897.5% 860.0%
Free cash flow CAGR (3Y) -6.8% – 67.0%

Profitability

14 metrics
MetricAMBPCSTMKALU
Gross margin 12.2% 16.1% 13.4%
EBITDA margin 12.7% 15.3% 10.4%
Operating margin 5.4% 11.9% 7.7%
Pretax margin 0.8% 8.1% 6.5%
Net margin 0.9% 5.7% 4.8%
FCF margin 9.8% 3.2% 2.8%
Operating cash flow margin 7.9% 6.3% 5.0%
Return on equity – 44.4% 22.8%
Return on assets 0.6% 9.7% 7.5%
Return on invested capital 5.6% 26.9% 12.8%
Return on capital employed 8.8% 31.0% 15.1%
Asset turnover 1.1x 1.7x 1.5x
Cash conversion (OCF / net income) 3.4x 1.1x 1.0x
Stock comp / revenue – – 0.4%

Financial Health

11 metrics
MetricAMBPCSTMKALU
Debt / assets 77.4% 31.0% 37.5%
Debt / equity -5.5x 1.4x 1.1x
Net debt / EBITDA 5.0x 1.1x 2.1x
Debt / FCF 6.9x 5.7x 8.8x
Liabilities / assets 114.0% 77.1% 66.6%
Equity / assets -14.0% 22.9% 33.4%
Interest coverage 1.3x 11.0x 6.1x
Current ratio 0.0x 1.5x 2.6x
Quick ratio 0.7x 0.6x 1.2x
Cash ratio 0.1x 0.1x 0.2x
Altman Z-score 0.98 3.22 3.09

Shareholder Returns

7 metrics
MetricAMBPCSTMKALU
Dividend yield 8.8% – 2.6%
Net buyback yield – 3.7% –
Shareholder yield 8.8% 3.7% 2.6%
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.

ConsensusAMBPCSTMKALU
Forward P/E 16.8xFY2026 5.7xFY2026 8.1xFY2026
EPS, next fiscal year $0.27FY2026 $4.18FY2026 $14.83FY2026
EPS growth, next FY +28.6%FY2026 +237.1%FY2026 +145.9%FY2026
EPS growth, the year after 0.0% -32.3% -24.7%
Revenue, next fiscal year $6.58BFY2026 $10.71BFY2026 $4.46BFY2026
Revenue growth, next FY +19.6%FY2026 +26.8%FY2026 +32.4%FY2026
Revenue growth, the year after -8.0% +1.3% +2.5%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAMBPCSTMKALU
Held by institutions 20.9% 88.6% 100.0%
Institutions holding 225 385 336
Change in shares held, QoQ +2.5% -4.5% +3.2%
Institutions buying 125 255 195
Institutions selling 63 108 101
Buyers to sellers 1.98 2.36 1.93

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.

AMBPCSTMKALU
AMBP 1.00 0.21 0.19
CSTM 0.21 1.00 0.68
KALU 0.19 0.68 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AMBP, CSTM and KALU?

Constellium Se (CSTM) is the largest by market capitalisation: Ardagh Metal Packaging (AMBP) $2.67B, Constellium Se (CSTM) $3.09B, Kaiser Aluminum (KALU) $1.87B.

Which stock is cheaper, AMBP, CSTM and KALU?

Constellium Se (CSTM) trades on the lowest price-to-earnings ratio (Ardagh Metal Packaging (AMBP) 46.1x, Constellium Se (CSTM) 5.4x, Kaiser Aluminum (KALU) 8.6x). On next year's consensus earnings, Constellium Se (CSTM) is cheapest (Ardagh Metal Packaging (AMBP) 16.8x, Constellium Se (CSTM) 5.7x, Kaiser Aluminum (KALU) 8.1x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Kaiser Aluminum (KALU) grew revenue fastest over the trailing twelve months: Ardagh Metal Packaging (AMBP) +17.0%, Constellium Se (CSTM) +26.1%, Kaiser Aluminum (KALU) +40.4%.

Which company is more profitable?

Constellium Se (CSTM) has the highest net margin (Ardagh Metal Packaging (AMBP) 0.9%, Constellium Se (CSTM) 5.7%, Kaiser Aluminum (KALU) 4.8%). On return on invested capital, Constellium Se (CSTM) leads (Ardagh Metal Packaging (AMBP) 5.6%, Constellium Se (CSTM) 26.9%, Kaiser Aluminum (KALU) 12.8%).

Which stock has performed better?

Over the past year Constellium Se (CSTM) returned the most: Ardagh Metal Packaging (AMBP) +23.8%, Constellium Se (CSTM) +47.5%, Kaiser Aluminum (KALU) +29.4%. Over five years, Constellium Se (CSTM) compounded fastest (Ardagh Metal Packaging (AMBP) -14.4%/yr, Constellium Se (CSTM) +5.5%/yr, Kaiser Aluminum (KALU) +4.3%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Ardagh Metal Packaging (AMBP) has been the steadiest (Ardagh Metal Packaging (AMBP) 33.9%, Constellium Se (CSTM) 44.7%, Kaiser Aluminum (KALU) 57.9%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AMBP, CSTM and KALU?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Constellium Se (CSTM) leads on 9. 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.