AA vs RIO vs KALU Stock Comparison

Alcoa, Rio Tinto and Kaiser Aluminum Prices as of Oct 29, 2026 Peers: Industry group
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AA Alcoa Corp
$39.88 -5.0% 1M +2.5% 1Y
Market cap
$10.23B
P/E
6.7x
Revenue (TTM)
$14.31B
Div. yield
0.01%
Aluminum Basic Materials
6 wins
RIO Rio Tinto Plc
$83.25 -11.6% 1M +14.7% 1Y
Market cap
$132.61B
P/E
–
Revenue (TTM)
—
Div. yield
–
Iron Ore Basic Materials
3 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
2 wins

Head to Head

11 decided of 12

Alcoa leads on 6 of the 12 questions below (Alcoa 6, Rio Tinto 3, Kaiser Aluminum 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAARIOKALULeader
Larger companyMarket capitalisation $10.23B $132.61B $1.87B RIO
Cheaper on earningsLower P/E, profitable companies only 6.7x — 8.6x AA
Cheaper on forward earningsLower price / next fiscal year consensus EPS 6.1x 10.6x 8.1x AA
Faster revenue growthRevenue growth, trailing twelve months +11.2% — +40.4% KALU
More profitableNet margin, trailing twelve months 10.7% — 4.8% AA
Better return on capitalReturn on invested capital 22.4% — 12.8% AA
Less leveragedLower net debt / EBITDA 0.1x — 2.1x AA
Higher dividend yieldTrailing dividend yield 0.01% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +2.5% +14.7% +29.4% KALU
Better 5-year returnAnnualised price return, 5 years -2.8%/yr +5.6%/yr +4.3%/yr RIO
Less volatileAnnualised volatility, 1 year 53.5% 30.9% 57.9% RIO
Higher overall scoreMean of the five percentile scores vs peers 69/100 — 68/100 AA

Percentile Scorecard

AARIOKALU

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

AxisAARIOKALU
Valuation 96 #7 of 163 – 89 #19 of 163
Growth 77 #35 of 148 – 85 #23 of 148
Profitability 66 #42 of 123 – 60 #50 of 123
Financial Health 29 #117 of 164 21 #130 of 164 22 #129 of 164
Shareholder Returns 79 #24 of 108 98 #3 of 108 83 #19 of 108
Overall 69 – 68
  • AA ranked among 176 companies in Metals and Mining
  • RIO ranked among 176 companies in Metals and Mining
  • 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

PeriodAARIOKALUSPY
1 month -5.0%-11.6%-20.7% +0.7%
3 months -11.3%-14.3%-25.0% +3.7%
6 months -37.5%-17.1%-29.7% +7.1%
Year to date -25.0%+4.0%+4.3% +12.8%
1 year +2.5%+14.7%+29.4% +11.9%
3 years +57.5%+29.7%+112.1% +85.2%
3 years, per year +16.4%+9.0%+28.5% +22.8%
5 years -13.2%+31.6%+23.4% +67.6%
5 years, per year -2.8%+5.6%+4.3% +10.9%
10 years +75.5%+141.1%+66.5% +262.0%
10 years, per year +5.8%+9.2%+5.2% +13.7%

Risk

MeasureAARIOKALUSPY
Volatility, 1Y 53.5%30.9%57.9% 12.7%
Downside volatility, 1Y 53.5%32.3%67.3% 12.6%
Beta vs S&P 500, 1Y 1.631.282.04 1.00
Return / volatility, 1Y 0.050.480.51 0.94
Max drawdown, 5Y -76.3%-39.0%-54.3% -25.4%
From 52-week high -52.4%-25.7%-38.7% -1.2%
52-week high $83.79$112.04$195.63 $779.14
52-week low $35.26$67.89$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.

MultipleAARIOKALU
P/E now vs peer median 6.9xmedian 13.2x —median 13.2x 9.0xmedian 13.2x
P/S now vs peer median 0.7xmedian 3.1x —median 3.1x 0.4xmedian 3.1x
EV/EBITDA now vs peer median 3.2xmedian 7.2x —median 7.2x 6.2xmedian 7.2x
P/FCF now vs peer median 11.8xmedian 15.2x —median 15.2x 15.7xmedian 15.2x
P/B now vs peer median 1.3xmedian 2.2x 2.0xmedian 2.2x 2.0xmedian 2.2x
PEG now vs peer median 0.15median 0.30 —median 0.30 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 monthsAARIOKALU
Revenue $14.31B – $4.51B
Gross profit $3.14B – $601.70M
Operating income $2.73B – $347.30M
Net income $1.51B – $218.50M
Free cash flow $890.00M – $124.80M
R&D $18.00M – $2.20M
EPS (diluted) $5.74 – $12.94
Cash & equivalents $4.41B $8.87B $117.30M
Total debt $4.82B $16.90B $1.09B
Shares (diluted) 266.00M 1.63B 16.89M
Enterprise value $1.52B $93.11B $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
MetricAARIOKALU
P/E 6.9x – 9.0x
P/FCF 11.8x – 15.7x
P/Operating cash flow 6.5x – 8.6x
P/S 0.7x – 0.4x
P/B 1.3x 2.0x 2.0x
P/Tangible book 1.3x 2.2x 2.1x
EV/EBITDA 3.2x – 6.2x
EV/EBIT 4.0x – 8.5x
EV/Revenue 0.8x – 0.7x
EV/FCF 12.3x – 23.5x
EV/Operating cash flow 6.8x – 12.9x
PEG (3Y EPS CAGR) 0.15 – 0.06

Growth

14 metrics
MetricAARIOKALU
Revenue growth (1Y) 11.2% – 40.4%
Revenue CAGR (3Y) 10.5% – 12.8%
Gross profit growth (1Y) 32.5% – 45.0%
Gross profit CAGR (3Y) 70.3% – 25.3%
Operating income growth (1Y) 169.5% – 108.3%
Operating income CAGR (3Y) 144.7% – 88.4%
Net income growth (1Y) 34.9% – 109.9%
Net income CAGR (3Y) 52.7% – 154.9%
EPS growth (1Y) 30.8% – 106.5%
EPS CAGR (3Y) 46.5% – 151.1%
Operating cash flow growth (1Y) 51.4% – 29.7%
Operating cash flow CAGR (3Y) 426.9% – 19.6%
Free cash flow growth (1Y) 71.5% – 860.0%
Free cash flow CAGR (3Y) 55.6% – 67.0%

Profitability

14 metrics
MetricAARIOKALU
Gross margin 21.9% – 13.4%
EBITDA margin 23.7% – 10.4%
Operating margin 19.0% – 7.7%
Pretax margin 11.3% – 6.5%
Net margin 10.7% – 4.8%
FCF margin 6.2% – 2.8%
Operating cash flow margin 11.2% – 5.0%
Return on equity 19.3% – 22.8%
Return on assets 8.1% – 7.5%
Return on invested capital 22.4% – 12.8%
Return on capital employed 18.6% – 15.1%
Asset turnover 0.8x – 1.5x
Cash conversion (OCF / net income) 1.1x – 1.0x
Stock comp / revenue 0.4% – 0.4%

Financial Health

11 metrics
MetricAARIOKALU
Debt / assets 23.7% – 37.5%
Debt / equity 0.6x 0.3x 1.1x
Net debt / EBITDA 0.1x – 2.1x
Debt / FCF 5.4x – 8.8x
Liabilities / assets 59.5% – 66.6%
Equity / assets 40.5% – 33.4%
Interest coverage 21.1x – 6.1x
Current ratio 2.3x 1.4x 2.6x
Quick ratio 1.5x 1.0x 1.2x
Cash ratio 1.1x 0.6x 0.2x
Altman Z-score 2.04 – 3.09

Shareholder Returns

7 metrics
MetricAARIOKALU
Dividend yield 1.3% 5.6% 2.6%
Net buyback yield – – –
Shareholder yield 1.3% 5.6% 2.6%
Payout ratio (earnings) 7.0% – –
Payout ratio (FCF) 11.9% – –
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.

ConsensusAARIOKALU
Forward P/E 6.1xFY2026 10.6xFY2026 8.1xFY2026
EPS, next fiscal year $6.50FY2026 $7.84FY2026 $14.83FY2026
EPS growth, next FY +72.4%FY2026 +17.2%FY2026 +145.9%FY2026
EPS growth, the year after -11.4% +9.1% -24.7%
Revenue, next fiscal year $13.74BFY2026 $67.58BFY2026 $4.46BFY2026
Revenue growth, next FY +7.1%FY2026 +17.2%FY2026 +32.4%FY2026
Revenue growth, the year after +13.8% -8.0% +2.5%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAARIOKALU
Held by institutions 77.8% 7.9% 100.0%
Institutions holding 710 969 336
Change in shares held, QoQ +2.9% -1.1% +3.2%
Institutions buying 357 505 195
Institutions selling 243 283 101
Buyers to sellers 1.47 1.78 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.

AARIOKALU
AA 1.00 0.57 0.51
RIO 0.57 1.00 0.50
KALU 0.51 0.50 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AA, RIO and KALU?

Rio Tinto (RIO) is the largest by market capitalisation: Alcoa (AA) $10.23B, Rio Tinto (RIO) $132.61B, Kaiser Aluminum (KALU) $1.87B.

Which stock is cheaper, AA, RIO and KALU?

Alcoa (AA) trades on the lowest price-to-earnings ratio (Alcoa (AA) 6.7x, Kaiser Aluminum (KALU) 8.6x). On next year's consensus earnings, Alcoa (AA) is cheapest (Alcoa (AA) 6.1x, Rio Tinto (RIO) 10.6x, 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: Alcoa (AA) +11.2%, Kaiser Aluminum (KALU) +40.4%.

Which company is more profitable?

Alcoa (AA) has the highest net margin (Alcoa (AA) 10.7%, Kaiser Aluminum (KALU) 4.8%). On return on invested capital, Alcoa (AA) leads (Alcoa (AA) 22.4%, Kaiser Aluminum (KALU) 12.8%).

Which stock has performed better?

Over the past year Kaiser Aluminum (KALU) returned the most: Alcoa (AA) +2.5%, Rio Tinto (RIO) +14.7%, Kaiser Aluminum (KALU) +29.4%. Over five years, Rio Tinto (RIO) compounded fastest (Alcoa (AA) -2.8%/yr, Rio Tinto (RIO) +5.6%/yr, Kaiser Aluminum (KALU) +4.3%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

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

Which stock is riskier?

By one-year price volatility, Rio Tinto (RIO) has been the steadiest (Alcoa (AA) 53.5%, Rio Tinto (RIO) 30.9%, Kaiser Aluminum (KALU) 57.9%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AA, RIO 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, Alcoa (AA) 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.