AA vs CSTM vs KALU Stock Comparison

Alcoa, Constellium Se and Kaiser Aluminum Prices as of Oct 26, 2026 Peers: Industry group
AA Alcoa Corp
$38.69 -9.8% 1M -1.9% 1Y
Market cap
$10.40B
P/E
6.8x
Revenue (TTM)
$14.31B
Div. yield
0.01%
Aluminum Basic Materials
1 win
CSTM Constellium Se
$23.40 -6.1% 1M +38.5% 1Y
Market cap
$3.28B
P/E
6.0x
Revenue (TTM)
$9.58B
Div. yield
–
Metal Fabrication Industrials
9 wins
KALU Kaiser Aluminum Corp
$105.47 -30.9% 1M +10.1% 1Y
Market cap
$1.79B
P/E
8.2x
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, Alcoa 1, Kaiser Aluminum 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAACSTMKALULeader
Larger companyMarket capitalisation $10.40B $3.28B $1.79B AA
Cheaper on earningsLower P/E, profitable companies only 6.8x 6.0x 8.2x CSTM
Cheaper on forward earningsLower price / next fiscal year consensus EPS 6.1x 5.6x 7.1x CSTM
Faster revenue growthRevenue growth, trailing twelve months +11.2% +25.9% +40.4% KALU
More profitableNet margin, trailing twelve months — 5.7% 4.8% CSTM
Better return on capitalReturn on invested capital — 25.6% 12.8% CSTM
Less leveragedLower net debt / EBITDA — 1.2x 2.1x CSTM
Higher dividend yieldTrailing dividend yield 0.01% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -1.9% +38.5% +10.1% CSTM
Better 5-year returnAnnualised price return, 5 years -3.4%/yr +4.4%/yr +1.2%/yr CSTM
Less volatileAnnualised volatility, 1 year 53.5% 44.7% 57.1% CSTM
Higher overall scoreMean of the five percentile scores vs peers 69/100 74/100 68/100 CSTM

Percentile Scorecard

AACSTMKALU

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

AxisAACSTMKALU
Valuation 96 #8 of 162 97 #8 of 203 91 #16 of 162
Growth 73 #41 of 147 97 #6 of 187 86 #22 of 147
Profitability 73 #34 of 122 66 #63 of 185 60 #50 of 122
Financial Health 24 #126 of 165 19 #177 of 219 21 #130 of 165
Shareholder Returns 78 #24 of 107 91 #15 of 153 85 #17 of 107
Overall 69 74 68
  • AA ranked among 176 companies in Metals and Mining
  • 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

PeriodAACSTMKALUSPY
1 month -9.8%-6.1%-30.9% -0.8%
3 months -12.2%-20.7%-34.9% +3.5%
6 months -42.6%-25.0%-39.7% +7.0%
Year to date -27.2%+24.1%-8.2% +12.2%
1 year -1.9%+38.5%+10.1% +13.0%
3 years +64.6%+52.7%+94.3% +86.3%
3 years, per year +18.1%+15.2%+24.8% +23.1%
5 years -15.7%+23.7%+6.3% +68.6%
5 years, per year -3.4%+4.4%+1.2% +11.0%
10 years +73.8%+325.5%+45.6% +258.0%
10 years, per year +5.7%+15.6%+3.8% +13.6%

Risk

MeasureAACSTMKALUSPY
Volatility, 1Y 53.5%44.7%57.1% 12.7%
Downside volatility, 1Y 53.3%42.1%67.3% 12.7%
Beta vs S&P 500, 1Y 1.621.922.01 1.00
Return / volatility, 1Y -0.030.860.18 1.02
Max drawdown, 5Y -76.3%-66.3%-54.3% -25.4%
From 52-week high -53.8%-35.3%-46.1% -1.8%
52-week high $83.79$36.15$195.63 $779.14
52-week low $35.26$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.

MultipleAACSTMKALU
P/E now vs peer median 6.7xmedian 12.8x 5.8xmedian 26.0x 7.9xmedian 12.8x
P/S now vs peer median 0.7xmedian 3.1x 0.3xmedian 1.9x 0.4xmedian 3.1x
EV/EBITDA now vs peer median —median 7.0x 3.3xmedian 14.0x 5.7xmedian 7.0x
P/FCF now vs peer median 31.5xmedian 15.2x 14.5xmedian 21.4x 13.8xmedian 15.2x
P/B now vs peer median 1.2xmedian 2.1x 2.5xmedian 2.2x 1.8xmedian 2.1x
PEG now vs peer median 0.14median 0.29 0.07median 1.26 0.05median 0.29

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 monthsAACSTMKALU
Revenue $14.31B $9.58B $4.51B
Gross profit – $1.56B $601.70M
Operating income – $1.14B $347.30M
Net income $1.51B $545.00M $218.50M
Free cash flow – $218.00M $124.80M
R&D $18.00M $53.00M $2.20M
EPS (diluted) $5.74 $3.89 $12.94
Cash & equivalents $4.41B $163.00M $117.30M
Total debt – $1.92B $1.09B
Shares (diluted) 266.00M 140.15M 16.89M
Enterprise value $10.40B $2.73B $1.58B

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
MetricAACSTMKALU
P/E 6.7x 5.8x 7.9x
P/FCF 31.5x 14.5x 13.8x
P/Operating cash flow 6.3x 5.8x 7.6x
P/S 0.7x 0.3x 0.4x
P/B 1.2x 2.5x 1.8x
P/Tangible book 1.2x 2.7x 1.8x
EV/EBITDA – 3.3x 5.7x
EV/EBIT – 4.3x 7.8x
EV/Revenue 0.7x 0.5x 0.6x
EV/FCF – 22.6x 21.7x
EV/Operating cash flow 6.3x 8.9x 11.9x
PEG (3Y EPS CAGR) 0.14 0.07 0.05

Growth

14 metrics
MetricAACSTMKALU
Revenue growth (1Y) 11.2% 25.9% 40.4%
Revenue CAGR (3Y) 10.5% 6.3% 12.8%
Gross profit growth (1Y) – 66.2% 45.0%
Gross profit CAGR (3Y) – 21.4% 25.3%
Operating income growth (1Y) – 101.1% 108.3%
Operating income CAGR (3Y) – 27.0% 88.4%
Net income growth (1Y) 34.9% 1,457% 109.9%
Net income CAGR (3Y) 52.7% 19.3% 154.9%
EPS growth (1Y) 30.8% 1,629% 106.5%
EPS CAGR (3Y) 46.5% 85.0% 151.1%
Operating cash flow growth (1Y) 51.4% 84.9% 29.7%
Operating cash flow CAGR (3Y) 426.9% – 19.6%
Free cash flow growth (1Y) – 311.7% 860.0%
Free cash flow CAGR (3Y) – – 67.0%

Profitability

14 metrics
MetricAACSTMKALU
Gross margin – 16.3% 13.4%
EBITDA margin – 15.5% 10.4%
Operating margin – 11.9% 7.7%
Pretax margin – 8.1% 6.5%
Net margin – 5.7% 4.8%
FCF margin – 2.3% 2.8%
Operating cash flow margin 11.2% 5.8% 5.0%
Return on equity 19.3% 45.7% 22.8%
Return on assets 8.1% 9.1% 7.5%
Return on invested capital – 25.6% 12.8%
Return on capital employed – 31.2% 15.1%
Asset turnover 0.8x 1.6x 1.5x
Cash conversion (OCF / net income) 1.1x 1.0x 1.0x
Stock comp / revenue 0.4% – 0.4%

Financial Health

11 metrics
MetricAACSTMKALU
Debt / assets – 31.7% 37.5%
Debt / equity – 1.5x 1.1x
Net debt / EBITDA – 1.2x 2.1x
Debt / FCF – 8.8x 8.8x
Liabilities / assets 59.5% 79.3% 66.6%
Equity / assets 40.5% 20.7% 33.4%
Interest coverage – 10.5x 6.1x
Current ratio 2.3x 1.4x 2.6x
Quick ratio – 0.6x 1.2x
Cash ratio – 0.1x 0.2x
Altman Z-score – 2.94 3.02

Shareholder Returns

7 metrics
MetricAACSTMKALU
Dividend yield 1.0% – 2.9%
Net buyback yield – 3.6% –
Shareholder yield 1.0% 3.6% 2.9%
Payout ratio (earnings) 7.0% – –
Payout ratio (FCF) – – –
Dividend growth (1Y) 1.9% – –
Dividend CAGR (3Y) 14.3% – –

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.

ConsensusAACSTMKALU
Forward P/E 6.1xFY2026 5.6xFY2026 7.1xFY2026
EPS, next fiscal year $6.30FY2026 $4.18FY2026 $14.83FY2026
EPS growth, next FY +67.1%FY2026 +237.1%FY2026 +145.9%FY2026
EPS growth, the year after -1.7% -32.3% -24.7%
Revenue, next fiscal year $13.77BFY2026 $10.71BFY2026 $4.46BFY2026
Revenue growth, next FY +7.3%FY2026 +26.8%FY2026 +32.4%FY2026
Revenue growth, the year after +15.5% +1.3% +2.5%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAACSTMKALU
Held by institutions 77.8% 88.6% 100.0%
Institutions holding 709 384 335
Change in shares held, QoQ +2.9% -4.5% +3.2%
Institutions buying 357 255 194
Institutions selling 242 108 101
Buyers to sellers 1.48 2.36 1.92

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.

AACSTMKALU
AA 1.00 0.55 0.51
CSTM 0.55 1.00 0.67
KALU 0.51 0.67 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AA, CSTM and KALU?

Alcoa (AA) is the largest by market capitalisation: Alcoa (AA) $10.40B, Constellium Se (CSTM) $3.28B, Kaiser Aluminum (KALU) $1.79B.

Which stock is cheaper, AA, CSTM and KALU?

Constellium Se (CSTM) trades on the lowest price-to-earnings ratio (Alcoa (AA) 6.8x, Constellium Se (CSTM) 6.0x, Kaiser Aluminum (KALU) 8.2x). On next year's consensus earnings, Constellium Se (CSTM) is cheapest (Alcoa (AA) 6.1x, Constellium Se (CSTM) 5.6x, Kaiser Aluminum (KALU) 7.1x). 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: Alcoa (AA) +11.2%, Constellium Se (CSTM) +25.9%, Kaiser Aluminum (KALU) +40.4%.

Which company is more profitable?

Constellium Se (CSTM) has the highest net margin (Constellium Se (CSTM) 5.7%, Kaiser Aluminum (KALU) 4.8%). On return on invested capital, Constellium Se (CSTM) leads (Constellium Se (CSTM) 25.6%, Kaiser Aluminum (KALU) 12.8%).

Which stock has performed better?

Over the past year Constellium Se (CSTM) returned the most: Alcoa (AA) -1.9%, Constellium Se (CSTM) +38.5%, Kaiser Aluminum (KALU) +10.1%. Over five years, Constellium Se (CSTM) compounded fastest (Alcoa (AA) -3.4%/yr, Constellium Se (CSTM) +4.4%/yr, Kaiser Aluminum (KALU) +1.2%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Alcoa (AA) 0.01%, Constellium Se (CSTM) 0.00%, Kaiser Aluminum (KALU) 0.00%. Constellium Se (CSTM) and Kaiser Aluminum (KALU) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Constellium Se (CSTM) has been the steadiest (Alcoa (AA) 53.5%, Constellium Se (CSTM) 44.7%, Kaiser Aluminum (KALU) 57.1%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AA, 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.