RTNTF vs SGML vs SLDP Stock Comparison

Rio Tinto, Sigma Lithium and Solid Power Prices as of Oct 27, 2026 Peers: Industry group
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RTNTF Rio Tinto Ltd
$102.86 -15.1% 1M +21.0% 1Y
Market cap
$167.04B
P/E
–
Revenue (TTM)
—
Div. yield
–
Iron Ore Basic Materials
4 wins
SGML Sigma Lithium Corp
$8.30 -12.6% 1M +49.0% 1Y
Market cap
$924.64M
P/E
–
Revenue (TTM)
$142.49M
Div. yield
–
Lithium Basic Materials
4 wins
SLDP Solid Power, Inc.
$2.05 -9.3% 1M -62.3% 1Y
Market cap
$465.80M
P/E
–
Revenue (TTM)
$11.53M
Div. yield
–
Lithium Basic Materials

Head to Head

8 decided of 12

Rio Tinto leads on 4 of the 12 questions below (Rio Tinto 4, Sigma Lithium 4). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionRTNTFSGMLSLDPLeader
Larger companyMarket capitalisation $167.04B $924.64M $465.80M RTNTF
Cheaper on earningsLower P/E, profitable companies only — -33.5x -5.2x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 12.4x 26.8x — RTNTF
Faster revenue growthRevenue growth, trailing twelve months — +7.3% -49.1% SGML
More profitableNet margin, trailing twelve months — -19.3% -778.5% SGML
Better return on capitalReturn on invested capital — 0.0% — –
Less leveragedLower net debt / EBITDA — 7.6x — –
Higher dividend yieldTrailing dividend yield 0.00% — — –
Better 1-year returnPrice return, last 12 months +21.0% +49.0% -62.3% SGML
Better 5-year returnAnnualised price return, 5 years +8.0%/yr -0.5%/yr -30.0%/yr RTNTF
Less volatileAnnualised volatility, 1 year 45.3% 111.9% 81.8% RTNTF
Higher overall scoreMean of the five percentile scores vs peers — 42/100 29/100 SGML

Percentile Scorecard

RTNTFSGMLSLDP

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

AxisRTNTFSGMLSLDP
Valuation – 40 #98 of 162 16 #137 of 162
Growth – 77 #34 of 147 26 #109 of 147
Profitability – 46 #66 of 122 12 #107 of 122
Financial Health 27 #120 of 164 6 #154 of 164 82 #30 of 164
Shareholder Returns – – 9 #97 of 107
Overall – 42 29
  • RTNTF ranked among 176 companies in Metals and Mining
  • SGML ranked among 176 companies in Metals and Mining
  • SLDP 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

PeriodRTNTFSGMLSLDPSPY
1 month -15.1%-12.6%-9.3% +0.9%
3 months -6.0%-11.4%+2.5% +5.9%
6 months -20.4%-61.9%-38.8% +8.5%
Year to date +4.0%-37.1%-51.8% +13.3%
1 year +21.0%+49.0%-62.3% +12.4%
3 years +40.5%-70.1%+55.3% +88.1%
3 years, per year +12.0%-33.1%+15.8% +23.5%
5 years +46.9%-2.4%-83.2% +68.2%
5 years, per year +8.0%-0.5%-30.0% +11.0%
10 years +157.0%—— +263.4%
10 years, per year +9.9%—— +13.8%

Risk

MeasureRTNTFSGMLSLDPSPY
Volatility, 1Y 45.3%111.9%81.8% 12.7%
Downside volatility, 1Y 66.0%98.8%80.0% 12.7%
Beta vs S&P 500, 1Y 0.892.163.03 1.00
Return / volatility, 1Y 0.460.44-0.76 0.98
Max drawdown, 5Y -41.4%-89.9%-93.5% -25.4%
From 52-week high -22.9%-64.9%-75.9% -0.9%
52-week high $133.44$23.65$8.51 $779.14
52-week low $81.39$4.68$1.95 $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.

MultipleRTNTFSGMLSLDP
P/E now vs peer median —median 13.4x -33.5xmedian 13.4x -5.2xmedian 13.4x
P/S now vs peer median —median 3.2x 6.5xmedian 3.2x 40.4xmedian 3.2x
EV/EBITDA now vs peer median —median 7.3x 40.8xmedian 7.3x -2.5xmedian 7.3x
P/FCF now vs peer median —median 14.8x 38.0xmedian 14.8x -6.4xmedian 14.8x
P/B now vs peer median 2.3xmedian 2.3x 11.2xmedian 2.3x 0.9xmedian 2.3x
PEG now vs peer median —median 0.31 -0.82median 0.31 —median 0.31

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 monthsRTNTFSGMLSLDP
Revenue – $142.49M $11.53M
Gross profit – $70.02M -$3.63M
Operating income – $10.66M -$107.57M
Net income – -$27.56M -$89.77M
Free cash flow – $24.30M -$72.93M
R&D – – $72.26M
EPS (diluted) – $-0.25 $-0.40
Cash & equivalents $8.91B $16.66M $24.28M
Total debt $78.67B $226.73M –
Shares (diluted) 1.64B 111.31M 225.97M
Enterprise value $136.08B $891.81M -$534.05M

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
MetricRTNTFSGMLSLDP
P/E – -33.5x -5.2x
P/FCF – 38.0x -6.4x
P/Operating cash flow – 24.5x -7.8x
P/S – 6.5x 40.4x
P/B 2.3x 11.2x 0.9x
P/Tangible book 2.5x 11.2x 0.9x
EV/EBITDA – 40.8x -2.5x
EV/EBIT – 106.5x -2.1x
EV/Revenue – 8.0x 19.4x
EV/FCF – 46.7x -3.1x
EV/Operating cash flow – 30.0x -3.7x
PEG (3Y EPS CAGR) – -0.82 –

Growth

14 metrics
MetricRTNTFSGMLSLDP
Revenue growth (1Y) – 7.3% -49.1%
Revenue CAGR (3Y) – – -9.8%
Gross profit growth (1Y) – 130.5% -480.9%
Gross profit CAGR (3Y) – – -21.2%
Operating income growth (1Y) – 40.5% -4.9%
Operating income CAGR (3Y) – – -12.0%
Net income growth (1Y) – 42.1% 4.0%
Net income CAGR (3Y) – 39.5% -26.6%
EPS growth (1Y) – 42.6% 23.4%
EPS CAGR (3Y) – 41.0% –
Operating cash flow growth (1Y) – 148.2% 7.2%
Operating cash flow CAGR (3Y) – 41.2% -8.2%
Free cash flow growth (1Y) – 14,876% 5.3%
Free cash flow CAGR (3Y) – 30.3% 8.7%

Profitability

14 metrics
MetricRTNTFSGMLSLDP
Gross margin – 49.1% -31.4%
EBITDA margin – 19.5% -770.0%
Operating margin – 7.5% -932.8%
Pretax margin – -6.9% -773.8%
Net margin – -19.3% -778.5%
FCF margin – 17.1% -632.4%
Operating cash flow margin – 26.5% -518.8%
Return on equity – -17.5% -17.4%
Return on assets – -3.4% -16.5%
Return on invested capital – 0.0% –
Return on capital employed – 7.9% -20.5%
Asset turnover – 0.4x 0.0x
Cash conversion (OCF / net income) – -1.4x 0.7x
Stock comp / revenue – 7.8% 94.0%

Financial Health

11 metrics
MetricRTNTFSGMLSLDP
Debt / assets 16.3% 47.4% –
Debt / equity 0.3x 2.8x –
Net debt / EBITDA – 7.6x –
Debt / FCF – 9.3x –
Liabilities / assets 46.3% 82.8% 4.8%
Equity / assets 53.7% 17.2% 95.2%
Interest coverage – – -498.0x
Current ratio 1.4x 0.3x 14.6x
Quick ratio 0.9x 0.2x 14.3x
Cash ratio 0.6x 0.1x 14.1x
Altman Z-score – 0.55 10.09

Shareholder Returns

7 metrics
MetricRTNTFSGMLSLDP
Dividend yield – – –
Net buyback yield – – -28.0%
Shareholder yield 0.0% – -28.0%
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.

ConsensusRTNTFSGMLSLDP
Forward P/E 12.4xFY2026 26.8xFY2026 –
EPS, next fiscal year $8.30FY2026 $0.31FY2026 $-0.38FY2026
EPS growth, next FY +24.1%FY2026 – –
EPS growth, the year after -3.6% +419.4% –
Revenue, next fiscal year $66.01BFY2026 $174.11MFY2026 $5.25MFY2026
Revenue growth, next FY +14.5%FY2026 +58.3%FY2026 -70.7%FY2026
Revenue growth, the year after -4.1% +144.1% +29.9%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersRTNTFSGMLSLDP
Held by institutions – 33.1% 35.5%
Institutions holding – 119 192
Change in shares held, QoQ – +9.7% -14.0%
Institutions buying – 65 113
Institutions selling – 40 34
Buyers to sellers – 1.63 3.32

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.

RTNTFSGMLSLDP
RTNTF 1.00 0.07 0.14
SGML 0.07 1.00 0.26
SLDP 0.14 0.26 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, RTNTF, SGML and SLDP?

Rio Tinto (RTNTF) is the largest by market capitalisation: Rio Tinto (RTNTF) $167.04B, Sigma Lithium (SGML) $924.64M, Solid Power (SLDP) $465.80M.

Which company is growing faster?

Sigma Lithium (SGML) grew revenue fastest over the trailing twelve months: Sigma Lithium (SGML) +7.3%, Solid Power (SLDP) -49.1%.

Which company is more profitable?

Sigma Lithium (SGML) has the highest net margin (Sigma Lithium (SGML) -19.3%, Solid Power (SLDP) -778.5%).

Which stock has performed better?

Over the past year Sigma Lithium (SGML) returned the most: Rio Tinto (RTNTF) +21.0%, Sigma Lithium (SGML) +49.0%, Solid Power (SLDP) -62.3%. Over five years, Rio Tinto (RTNTF) compounded fastest (Rio Tinto (RTNTF) +8.0%/yr, Sigma Lithium (SGML) -0.5%/yr, Solid Power (SLDP) -30.0%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Rio Tinto (RTNTF) has been the steadiest (Rio Tinto (RTNTF) 45.3%, Sigma Lithium (SGML) 111.9%, Solid Power (SLDP) 81.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, RTNTF, SGML and SLDP?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Rio Tinto (RTNTF) leads on 4. 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.