CMP vs RIO vs MTRN Stock Comparison

Compass Minerals International, Rio Tinto and Materion Prices as of Oct 23, 2026 Peers: Industry group
RIO Rio Tinto Plc
$83.40 -12.4% 1M +18.1% 1Y
Market cap
$135.87B
P/E
–
Revenue (TTM)
—
Div. yield
–
Iron Ore Basic Materials
3 wins
MTRN MATERION Corp
$220.82 -13.6% 1M +67.3% 1Y
Market cap
$4.72B
P/E
52.4x
Revenue (TTM)
$2.10B
Div. yield
0.00%
Industrial Minerals Basic Materials
6 wins

Head to Head

11 decided of 12

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

QuestionCMPRIOMTRNLeader
Larger companyMarket capitalisation $936.81M $135.87B $4.72B RIO
Cheaper on earningsLower P/E, profitable companies only 50.9x — 52.4x CMP
Cheaper on forward earningsLower price / next fiscal year consensus EPS 24.7x 10.6x 29.7x RIO
Faster revenue growthRevenue growth, trailing twelve months +5.5% — +21.6% MTRN
More profitableNet margin, trailing twelve months 1.4% — 4.3% MTRN
Better return on capitalReturn on invested capital 5.2% — 8.1% MTRN
Less leveragedLower net debt / EBITDA 2.9x — 2.1x MTRN
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +17.3% +18.1% +67.3% MTRN
Better 5-year returnAnnualised price return, 5 years -21.1%/yr +4.8%/yr +25.5%/yr MTRN
Less volatileAnnualised volatility, 1 year 51.4% 30.7% 61.6% RIO
Higher overall scoreMean of the five percentile scores vs peers 54/100 — 49/100 CMP

Percentile Scorecard

CMPRIOMTRN

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

AxisCMPRIOMTRN
Valuation 75 #42 of 162 – 55 #73 of 162
Growth 66 #51 of 147 – 53 #70 of 147
Profitability 60 #50 of 122 – 55 #55 of 122
Financial Health 17 #138 of 166 22 #129 of 166 27 #121 of 166
Shareholder Returns – 98 #3 of 107 53 #51 of 107
Overall 54 – 49
  • CMP ranked among 176 companies in Metals and Mining
  • RIO ranked among 176 companies in Metals and Mining
  • MTRN 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

PeriodCMPRIOMTRNSPY
1 month -8.4%-12.4%-13.6% -1.0%
3 months -27.7%-8.6%-8.5% +2.9%
6 months -16.0%-16.3%+18.8% +6.4%
Year to date +8.2%+4.2%+77.6% +11.4%
1 year +17.3%+18.1%+67.3% +13.1%
3 years -15.2%+33.6%+132.0% +79.4%
3 years, per year -5.3%+10.1%+32.4% +21.5%
5 years -69.5%+26.6%+211.0% +67.7%
5 years, per year -21.1%+4.8%+25.5% +10.9%
10 years -70.5%+153.7%+651.1% +255.2%
10 years, per year -11.5%+9.8%+22.3% +13.5%

Risk

MeasureCMPRIOMTRNSPY
Volatility, 1Y 51.4%30.7%61.6% 12.7%
Downside volatility, 1Y 54.0%32.0%63.2% 12.7%
Beta vs S&P 500, 1Y 1.591.262.12 1.00
Return / volatility, 1Y 0.340.591.09 1.03
Max drawdown, 5Y -89.3%-39.0%-48.1% -25.4%
From 52-week high -36.6%-25.6%-31.0% -2.5%
52-week high $33.51$112.04$320.08 $779.14
52-week low $16.54$67.89$111.50 $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.

MultipleCMPRIOMTRN
P/E now vs peer median 48.8xmedian 12.7x —median 12.7x 51.0xmedian 12.7x
P/S now vs peer median 0.7xmedian 3.1x —median 3.1x 2.2xmedian 3.1x
EV/EBITDA now vs peer median 6.9xmedian 6.9x —median 6.9x 25.2xmedian 6.9x
P/FCF now vs peer median 11.5xmedian 15.1x —median 15.1x 78.3xmedian 15.1x
P/B now vs peer median 3.4xmedian 2.1x 2.0xmedian 2.1x 4.6xmedian 2.1x
PEG now vs peer median 2.76median 0.27 —median 0.27 -16.15median 0.27

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 monthsCMPRIOMTRN
Revenue $1.29B – $2.10B
Gross profit $222.50M – $335.97M
Operating income $115.50M – $125.67M
Net income $18.40M – $90.12M
Free cash flow $77.90M – $58.73M
R&D – – $25.74M
EPS (diluted) $0.44 – $4.28
Cash & equivalents $56.30M $8.87B $19.99M
Total debt $3.14B $16.90B $440.69M
Shares (diluted) 42.25M 1.63B 21.08M
Enterprise value $700.01M $96.37B $4.66B

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
MetricCMPRIOMTRN
P/E 48.8x – 51.0x
P/FCF 11.5x – 78.3x
P/Operating cash flow 5.7x – 42.5x
P/S 0.7x – 2.2x
P/B 3.4x 2.0x 4.6x
P/Tangible book 3.4x 2.2x 5.1x
EV/EBITDA 6.9x – 25.2x
EV/EBIT 13.4x – 40.0x
EV/Revenue 1.2x – 2.4x
EV/FCF 19.9x – 85.5x
EV/Operating cash flow 10.0x – 46.4x
PEG (3Y EPS CAGR) 2.76 – -16.15

Growth

14 metrics
MetricCMPRIOMTRN
Revenue growth (1Y) 5.5% – 21.6%
Revenue CAGR (3Y) 1.9% – 7.2%
Gross profit growth (1Y) 29.5% – 1.0%
Gross profit CAGR (3Y) -1.3% – -2.4%
Operating income growth (1Y) 800.0% – 120.8%
Operating income CAGR (3Y) 11.3% – -3.7%
Net income growth (1Y) 115.2% – 453.5%
Net income CAGR (3Y) 18.7% – -2.9%
EPS growth (1Y) 115.1% – 447.1%
EPS CAGR (3Y) 17.7% – -3.2%
Operating cash flow growth (1Y) -18.8% – -26.2%
Operating cash flow CAGR (3Y) 16.6% – -13.1%
Free cash flow growth (1Y) -33.5% – -36.0%
Free cash flow CAGR (3Y) 97.0% – -1.8%

Profitability

14 metrics
MetricCMPRIOMTRN
Gross margin 17.2% – 16.0%
EBITDA margin 17.5% – 9.5%
Operating margin 8.9% – 6.0%
Pretax margin 3.2% – 4.6%
Net margin 1.4% – 4.3%
FCF margin 6.0% – 2.8%
Operating cash flow margin 12.1% – 5.2%
Return on equity 6.8% – 9.2%
Return on assets 1.4% – 4.8%
Return on invested capital 5.2% – 8.1%
Return on capital employed 10.4% – 8.0%
Asset turnover 1.0x – 1.1x
Cash conversion (OCF / net income) 8.5x – 1.2x
Stock comp / revenue 0.8% – 0.7%

Financial Health

11 metrics
MetricCMPRIOMTRN
Debt / assets 52.9% – 23.6%
Debt / equity 2.7x 0.3x 0.4x
Net debt / EBITDA 2.9x – 2.1x
Debt / FCF 9.2x – 7.5x
Liabilities / assets 80.5% – 46.8%
Equity / assets 19.5% – 53.2%
Interest coverage 52.5x – 4.1x
Current ratio 2.0x 1.4x 2.9x
Quick ratio 1.0x 1.0x 1.1x
Cash ratio 0.2x 0.6x 0.1x
Altman Z-score 1.90 – 5.59

Shareholder Returns

7 metrics
MetricCMPRIOMTRN
Dividend yield – 5.6% 0.3%
Net buyback yield – – –
Shareholder yield 0.0% 5.6% 0.3%
Payout ratio (earnings) – – 13.0%
Payout ratio (FCF) – – 20.0%
Dividend growth (1Y) – – 3.8%
Dividend CAGR (3Y) – – 4.4%

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.

ConsensusCMPRIOMTRN
Forward P/E 24.7xFY2026 10.6xFY2026 29.7xFY2026
EPS, next fiscal year $0.86FY2026 $7.86FY2026 $7.43FY2026
EPS growth, next FY – +17.5%FY2026 +36.6%FY2026
EPS growth, the year after +51.2% +8.8% +18.8%
Revenue, next fiscal year $1.21BFY2026 $67.63BFY2026 $2.50BFY2026
Revenue growth, next FY -2.5%FY2026 +17.3%FY2026 +39.7%FY2026
Revenue growth, the year after +12.7% -7.9% +8.4%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCMPRIOMTRN
Held by institutions 91.8% 7.9% 97.0%
Institutions holding 230 968 404
Change in shares held, QoQ -4.3% -1.1% +3.3%
Institutions buying 130 504 238
Institutions selling 56 283 121
Buyers to sellers 2.32 1.78 1.97

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.

CMPRIOMTRN
CMP 1.00 0.51 0.36
RIO 0.51 1.00 0.42
MTRN 0.36 0.42 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, CMP, RIO and MTRN?

Rio Tinto (RIO) is the largest by market capitalisation: Compass Minerals International (CMP) $936.81M, Rio Tinto (RIO) $135.87B, Materion (MTRN) $4.72B.

Which stock is cheaper, CMP, RIO and MTRN?

Compass Minerals International (CMP) trades on the lowest price-to-earnings ratio (Compass Minerals International (CMP) 50.9x, Materion (MTRN) 52.4x). On next year's consensus earnings, Rio Tinto (RIO) is cheapest (Compass Minerals International (CMP) 24.7x, Rio Tinto (RIO) 10.6x, Materion (MTRN) 29.7x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Materion (MTRN) grew revenue fastest over the trailing twelve months: Compass Minerals International (CMP) +5.5%, Materion (MTRN) +21.6%.

Which company is more profitable?

Materion (MTRN) has the highest net margin (Compass Minerals International (CMP) 1.4%, Materion (MTRN) 4.3%). On return on invested capital, Materion (MTRN) leads (Compass Minerals International (CMP) 5.2%, Materion (MTRN) 8.1%).

Which stock has performed better?

Over the past year Materion (MTRN) returned the most: Compass Minerals International (CMP) +17.3%, Rio Tinto (RIO) +18.1%, Materion (MTRN) +67.3%. Over five years, Materion (MTRN) compounded fastest (Compass Minerals International (CMP) -21.1%/yr, Rio Tinto (RIO) +4.8%/yr, Materion (MTRN) +25.5%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Compass Minerals International (CMP) 0.00%, Rio Tinto (RIO) 0.00%, Materion (MTRN) 0.00%. Compass Minerals International (CMP) and Rio Tinto (RIO) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Rio Tinto (RIO) has been the steadiest (Compass Minerals International (CMP) 51.4%, Rio Tinto (RIO) 30.7%, Materion (MTRN) 61.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CMP, RIO and MTRN?

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