EAF vs MTRN vs RIO Stock Comparison

Graftech International, Materion and Rio Tinto Prices as of Oct 23, 2026 Peers: Industry group
EAF Graftech International Ltd
$8.49 -25.2% 1M -51.2% 1Y
Market cap
$282.37M
P/E
–
Revenue (TTM)
$509.08M
Div. yield
–
Industrial Minerals Basic Materials
1 win
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
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

Head to Head

10 decided of 12

Materion leads on 6 of the 12 questions below (Materion 6, Rio Tinto 3, Graftech International 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionEAFMTRNRIOLeader
Larger companyMarket capitalisation $282.37M $4.72B $135.87B RIO
Cheaper on earningsLower P/E, profitable companies only -1.4x 52.4x — –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 29.7x 10.6x RIO
Faster revenue growthRevenue growth, trailing twelve months -2.5% +21.6% — MTRN
More profitableNet margin, trailing twelve months -38.4% 4.3% — MTRN
Better return on capitalReturn on invested capital -12.9% 8.1% — MTRN
Less leveragedLower net debt / EBITDA -23.1x 2.1x — EAF
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -51.2% +67.3% +18.1% MTRN
Better 5-year returnAnnualised price return, 5 years -40.3%/yr +25.5%/yr +4.8%/yr MTRN
Less volatileAnnualised volatility, 1 year 111.8% 61.6% 30.7% RIO
Higher overall scoreMean of the five percentile scores vs peers 22/100 49/100 — MTRN

Percentile Scorecard

EAFMTRNRIO

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

AxisEAFMTRNRIO
Valuation 21 #128 of 162 55 #73 of 162 –
Growth 7 #137 of 147 53 #70 of 147 –
Profitability 25 #92 of 122 55 #55 of 122 –
Financial Health 20 #133 of 166 27 #121 of 166 22 #129 of 166
Shareholder Returns 38 #67 of 107 53 #51 of 107 98 #3 of 107
Overall 22 49 –
  • EAF ranked among 176 companies in Metals and Mining
  • MTRN ranked among 176 companies in Metals and Mining
  • RIO 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

PeriodEAFMTRNRIOSPY
1 month -25.2%-13.6%-12.4% -1.0%
3 months +13.7%-8.5%-8.6% +2.9%
6 months -9.9%+18.8%-16.3% +6.4%
Year to date -45.3%+77.6%+4.2% +11.4%
1 year -51.2%+67.3%+18.1% +13.1%
3 years -73.9%+132.0%+33.6% +79.4%
3 years, per year -36.1%+32.4%+10.1% +21.5%
5 years -92.4%+211.0%+26.6% +67.7%
5 years, per year -40.3%+25.5%+4.8% +10.9%
10 years —+651.1%+153.7% +255.2%
10 years, per year —+22.3%+9.8% +13.5%

Risk

MeasureEAFMTRNRIOSPY
Volatility, 1Y 111.8%61.6%30.7% 12.7%
Downside volatility, 1Y 131.7%63.2%32.0% 12.7%
Beta vs S&P 500, 1Y 1.682.121.26 1.00
Return / volatility, 1Y -0.461.090.59 1.03
Max drawdown, 5Y -96.1%-48.1%-39.0% -25.4%
From 52-week high -52.9%-31.0%-25.6% -2.5%
52-week high $18.01$320.08$112.04 $779.14
52-week low $5.23$111.50$67.89 $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.

MultipleEAFMTRNRIO
P/E now vs peer median -1.2xmedian 12.7x 51.0xmedian 12.7x —median 12.7x
P/S now vs peer median 0.4xmedian 3.1x 2.2xmedian 3.1x —median 3.1x
EV/EBITDA now vs peer median -28.1xmedian 6.9x 25.2xmedian 6.9x —median 6.9x
P/FCF now vs peer median -1.4xmedian 15.1x 78.3xmedian 15.1x —median 15.1x
P/B now vs peer median -0.6xmedian 2.1x 4.6xmedian 2.1x 2.0xmedian 2.1x
PEG now vs peer median 0.02median 0.27 -16.15median 0.27 —median 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 monthsEAFMTRNRIO
Revenue $509.08M $2.10B –
Gross profit -$34.13M $335.97M –
Operating income -$107.10M $125.67M –
Net income -$195.63M $90.12M –
Free cash flow -$158.11M $58.73M –
R&D $6.05M $25.74M –
EPS (diluted) $-7.38 $4.28 –
Cash & equivalents $134.31M $19.99M $8.87B
Total debt $1.20B $440.69M $16.90B
Shares (diluted) 26.51M 21.08M 1.63B
Enterprise value -$255.97M $4.66B $96.37B

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
MetricEAFMTRNRIO
P/E -1.2x 51.0x –
P/FCF -1.4x 78.3x –
P/Operating cash flow -2.0x 42.5x –
P/S 0.4x 2.2x –
P/B -0.6x 4.6x 2.0x
P/Tangible book -0.6x 5.1x 2.2x
EV/EBITDA -28.1x 25.2x –
EV/EBIT -12.1x 40.0x –
EV/Revenue 2.5x 2.4x –
EV/FCF -8.2x 85.5x –
EV/Operating cash flow -11.5x 46.4x –
PEG (3Y EPS CAGR) 0.02 -16.15 –

Growth

14 metrics
MetricEAFMTRNRIO
Revenue growth (1Y) -2.5% 21.6% –
Revenue CAGR (3Y) -11.4% 7.2% –
Gross profit growth (1Y) -1,814% 1.0% –
Gross profit CAGR (3Y) -30.9% -2.4% –
Operating income growth (1Y) -70.6% 120.8% –
Operating income CAGR (3Y) -57.0% -3.7% –
Net income growth (1Y) 4.2% 453.5% –
Net income CAGR (3Y) -72.9% -2.9% –
EPS growth (1Y) 6.3% 447.1% –
EPS CAGR (3Y) -71.1% -3.2% –
Operating cash flow growth (1Y) -29.5% -26.2% –
Operating cash flow CAGR (3Y) -43.6% -13.1% –
Free cash flow growth (1Y) -31.3% -36.0% –
Free cash flow CAGR (3Y) -79.2% -1.8% –

Profitability

14 metrics
MetricEAFMTRNRIO
Gross margin -6.7% 16.0% –
EBITDA margin -9.0% 9.5% –
Operating margin -21.0% 6.0% –
Pretax margin -36.8% 4.6% –
Net margin -38.4% 4.3% –
FCF margin -31.1% 2.8% –
Operating cash flow margin -22.2% 5.2% –
Return on equity – 9.2% –
Return on assets -18.9% 4.8% –
Return on invested capital -12.9% 8.1% –
Return on capital employed -12.1% 8.0% –
Asset turnover 0.5x 1.1x –
Cash conversion (OCF / net income) 0.6x 1.2x –
Stock comp / revenue 1.1% 0.7% –

Financial Health

11 metrics
MetricEAFMTRNRIO
Debt / assets 117.4% 23.6% –
Debt / equity -3.1x 0.4x 0.3x
Net debt / EBITDA -23.1x 2.1x –
Debt / FCF -7.6x 7.5x –
Liabilities / assets 138.0% 46.8% –
Equity / assets -38.0% 53.2% –
Interest coverage -1.1x 4.1x –
Current ratio 3.5x 2.9x 1.4x
Quick ratio 1.4x 1.1x 1.0x
Cash ratio 0.9x 0.1x 0.6x
Altman Z-score -0.88 5.59 –

Shareholder Returns

7 metrics
MetricEAFMTRNRIO
Dividend yield – 0.3% 5.6%
Net buyback yield -2.1% – –
Shareholder yield -2.1% 0.3% 5.6%
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.

ConsensusEAFMTRNRIO
Forward P/E – 29.7xFY2026 10.6xFY2026
EPS, next fiscal year $-5.75FY2026 $7.43FY2026 $7.86FY2026
EPS growth, next FY – +36.6%FY2026 +17.5%FY2026
EPS growth, the year after – +18.8% +8.8%
Revenue, next fiscal year $469.57MFY2026 $2.50BFY2026 $67.63BFY2026
Revenue growth, next FY -6.9%FY2026 +39.7%FY2026 +17.3%FY2026
Revenue growth, the year after +18.4% +8.4% -7.9%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersEAFMTRNRIO
Held by institutions 41.3% 97.0% 7.9%
Institutions holding 90 404 968
Change in shares held, QoQ +2.5% +3.3% -1.1%
Institutions buying 54 238 504
Institutions selling 22 121 283
Buyers to sellers 2.45 1.97 1.78

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.

EAFMTRNRIO
EAF 1.00 0.19 0.18
MTRN 0.19 1.00 0.42
RIO 0.18 0.42 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, EAF, MTRN and RIO?

Rio Tinto (RIO) is the largest by market capitalisation: Graftech International (EAF) $282.37M, Materion (MTRN) $4.72B, Rio Tinto (RIO) $135.87B.

Which company is growing faster?

Materion (MTRN) grew revenue fastest over the trailing twelve months: Graftech International (EAF) -2.5%, Materion (MTRN) +21.6%.

Which company is more profitable?

Materion (MTRN) has the highest net margin (Graftech International (EAF) -38.4%, Materion (MTRN) 4.3%). On return on invested capital, Materion (MTRN) leads (Graftech International (EAF) -12.9%, Materion (MTRN) 8.1%).

Which stock has performed better?

Over the past year Materion (MTRN) returned the most: Graftech International (EAF) -51.2%, Materion (MTRN) +67.3%, Rio Tinto (RIO) +18.1%. Over five years, Materion (MTRN) compounded fastest (Graftech International (EAF) -40.3%/yr, Materion (MTRN) +25.5%/yr, Rio Tinto (RIO) +4.8%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

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

Which stock is riskier?

By one-year price volatility, Rio Tinto (RIO) has been the steadiest (Graftech International (EAF) 111.8%, Materion (MTRN) 61.6%, Rio Tinto (RIO) 30.7%). Volatility measures how widely the price swings, not the risk of the business.

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

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.