SGML vs RIO vs SLI Stock Comparison

Sigma Lithium, Rio Tinto and Standard Lithium Prices as of Oct 26, 2026 Peers: Industry group
SGML Sigma Lithium Corp
$7.86 -18.0% 1M +30.6% 1Y
Market cap
$942.82M
P/E
–
Revenue (TTM)
$142.49M
Div. yield
–
Lithium Basic Materials
2 wins
RIO Rio Tinto Plc
$83.71 -11.4% 1M +18.7% 1Y
Market cap
$139.20B
P/E
–
Revenue (TTM)
—
Div. yield
–
Iron Ore Basic Materials
4 wins
SLI Standard Lithium Ltd.
$1.38 -25.4% 1M -67.3% 1Y
Market cap
$310.59M
P/E
–
Revenue (TTM)
$6.02M
Div. yield
–
Lithium Basic Materials
2 wins

Head to Head

8 decided of 12

Rio Tinto leads on 4 of the 12 questions below (Rio Tinto 4, Standard Lithium 2, Sigma Lithium 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionSGMLRIOSLILeader
Larger companyMarket capitalisation $942.82M $139.20B $310.59M RIO
Cheaper on earningsLower P/E, profitable companies only -34.2x — -6.5x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 25.4x 10.7x — RIO
Faster revenue growthRevenue growth, trailing twelve months +7.3% — +575.1% SLI
More profitableNet margin, trailing twelve months -19.3% — -791.4% SGML
Better return on capitalReturn on invested capital 0.0% — — –
Less leveragedLower net debt / EBITDA 7.6x — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +30.6% +18.7% -67.3% SGML
Better 5-year returnAnnualised price return, 5 years -2.0%/yr +5.4%/yr -35.5%/yr RIO
Less volatileAnnualised volatility, 1 year 111.9% 30.7% 66.8% RIO
Higher overall scoreMean of the five percentile scores vs peers 43/100 — 59/100 SLI

Percentile Scorecard

SGMLRIOSLI

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

AxisSGMLRIOSLI
Valuation 42 #95 of 162 – 34 #108 of 162
Growth 77 #34 of 147 – 67 #49 of 147
Profitability 47 #65 of 122 – 17 #102 of 122
Financial Health 6 #156 of 165 22 #129 of 165 79 #35 of 165
Shareholder Returns – 98 #3 of 107 96 #5 of 107
Overall 43 – 59
  • SGML ranked among 176 companies in Metals and Mining
  • RIO ranked among 176 companies in Metals and Mining
  • SLI 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

PeriodSGMLRIOSLISPY
1 month -18.0%-11.4%-25.4% -0.8%
3 months -21.0%-9.0%-35.5% +3.5%
6 months -62.0%-16.2%-64.9% +7.0%
Year to date -40.4%+4.6%-69.1% +12.2%
1 year +30.6%+18.7%-67.3% +13.0%
3 years -71.7%+31.3%-49.6% +86.3%
3 years, per year -34.3%+9.5%-20.4% +23.1%
5 years -9.4%+29.9%-88.8% +68.6%
5 years, per year -2.0%+5.4%-35.5% +11.0%
10 years —+144.7%— +258.0%
10 years, per year —+9.4%— +13.6%

Risk

MeasureSGMLRIOSLISPY
Volatility, 1Y 111.9%30.7%66.8% 12.7%
Downside volatility, 1Y 98.8%32.1%72.7% 12.7%
Beta vs S&P 500, 1Y 2.151.272.15 1.00
Return / volatility, 1Y 0.270.61-1.01 1.02
Max drawdown, 5Y -89.9%-39.0%-91.5% -25.4%
From 52-week high -66.8%-25.3%-75.6% -1.8%
52-week high $23.65$112.04$5.65 $779.14
52-week low $4.68$67.89$1.38 $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.

MultipleSGMLRIOSLI
P/E now vs peer median -31.7xmedian 12.8x —median 12.8x -6.0xmedian 12.8x
P/S now vs peer median 6.1xmedian 3.1x —median 3.1x 54.9xmedian 3.1x
EV/EBITDA now vs peer median 39.1xmedian 7.0x —median 7.0x —median 7.0x
P/FCF now vs peer median 36.0xmedian 15.2x —median 15.2x -22.6xmedian 15.2x
P/B now vs peer median 10.6xmedian 2.1x 2.0xmedian 2.1x 0.9xmedian 2.1x
PEG now vs peer median -0.77median 0.29 —median 0.29 —median 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 monthsSGMLRIOSLI
Revenue $142.49M – $6.02M
Gross profit $70.02M – –
Operating income $10.66M – -$22.81M
Net income -$27.56M – -$47.66M
Free cash flow $24.30M – -$14.63M
EPS (diluted) $-0.25 – $-0.23
Cash & equivalents $16.66M $8.87B $137.30M
Total debt $226.73M $16.90B –
Shares (diluted) 111.31M 1.63B 206.37M
Enterprise value $909.99M $99.70B -$359.41M

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
MetricSGMLRIOSLI
P/E -31.7x – -6.0x
P/FCF 36.0x – -22.6x
P/Operating cash flow 23.2x – -22.6x
P/S 6.1x – 54.9x
P/B 10.6x 2.0x 0.9x
P/Tangible book 10.6x 2.2x 0.9x
EV/EBITDA 39.1x – –
EV/EBIT 101.9x – -6.2x
EV/Revenue 7.6x – 23.6x
EV/FCF 44.7x – -9.7x
EV/Operating cash flow 28.7x – -9.7x
PEG (3Y EPS CAGR) -0.77 – –

Growth

14 metrics
MetricSGMLRIOSLI
Revenue growth (1Y) 7.3% – 575.1%
Revenue CAGR (3Y) – – –
Gross profit growth (1Y) 130.5% – –
Gross profit CAGR (3Y) – – –
Operating income growth (1Y) 40.5% – -363.9%
Operating income CAGR (3Y) – – –
Net income growth (1Y) 42.1% – 69.6%
Net income CAGR (3Y) 39.5% – –
EPS growth (1Y) 42.6% – 72.6%
EPS CAGR (3Y) 41.0% – –
Operating cash flow growth (1Y) 148.2% – 12.4%
Operating cash flow CAGR (3Y) 41.2% – –
Free cash flow growth (1Y) 14,876% – 32.6%
Free cash flow CAGR (3Y) 30.3% – –

Profitability

14 metrics
MetricSGMLRIOSLI
Gross margin 49.1% – –
EBITDA margin 19.5% – –
Operating margin 7.5% – -378.8%
Pretax margin -6.9% – -867.8%
Net margin -19.3% – -791.4%
FCF margin 17.1% – -242.9%
Operating cash flow margin 26.5% – -242.6%
Return on equity -17.5% – -13.0%
Return on assets -3.4% – -12.1%
Return on invested capital 0.0% – –
Return on capital employed 7.9% – -5.9%
Asset turnover 0.4x – 0.0x
Cash conversion (OCF / net income) -1.4x – 0.3x
Stock comp / revenue 7.8% – 104.0%

Financial Health

11 metrics
MetricSGMLRIOSLI
Debt / assets 47.4% – –
Debt / equity 2.8x 0.3x –
Net debt / EBITDA 7.6x – –
Debt / FCF 9.3x – –
Liabilities / assets 82.8% – 7.1%
Equity / assets 17.2% – 92.9%
Interest coverage – – -950.4x
Current ratio 0.3x 1.4x 17.9x
Quick ratio 0.2x 1.0x 23.6x
Cash ratio 0.1x 0.6x 23.3x
Altman Z-score 0.47 – 6.96

Shareholder Returns

7 metrics
MetricSGMLRIOSLI
Dividend yield – 5.6% –
Net buyback yield – – 4.2%
Shareholder yield – 5.6% 4.2%
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.

ConsensusSGMLRIOSLI
Forward P/E 25.4xFY2026 10.7xFY2026 –
EPS, next fiscal year $0.31FY2026 $7.84FY2026 –
EPS growth, next FY – +17.2%FY2026 –
EPS growth, the year after +419.4% +9.1% –
Revenue, next fiscal year $174.11MFY2026 $67.58BFY2026 –
Revenue growth, next FY +58.3%FY2026 +17.2%FY2026 –
Revenue growth, the year after +144.1% -8.0% –

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersSGMLRIOSLI
Held by institutions 33.1% 7.9% 31.0%
Institutions holding 119 968 137
Change in shares held, QoQ +9.7% -1.1% +2.1%
Institutions buying 65 504 60
Institutions selling 40 283 33
Buyers to sellers 1.63 1.78 1.82

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.

SGMLRIOSLI
SGML 1.00 0.42 0.48
RIO 0.42 1.00 0.50
SLI 0.48 0.50 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, SGML, RIO and SLI?

Rio Tinto (RIO) is the largest by market capitalisation: Sigma Lithium (SGML) $942.82M, Rio Tinto (RIO) $139.20B, Standard Lithium (SLI) $310.59M.

Which company is growing faster?

Standard Lithium (SLI) grew revenue fastest over the trailing twelve months: Sigma Lithium (SGML) +7.3%, Standard Lithium (SLI) +575.1%.

Which company is more profitable?

Sigma Lithium (SGML) has the highest net margin (Sigma Lithium (SGML) -19.3%, Standard Lithium (SLI) -791.4%).

Which stock has performed better?

Over the past year Sigma Lithium (SGML) returned the most: Sigma Lithium (SGML) +30.6%, Rio Tinto (RIO) +18.7%, Standard Lithium (SLI) -67.3%. Over five years, Rio Tinto (RIO) compounded fastest (Sigma Lithium (SGML) -2.0%/yr, Rio Tinto (RIO) +5.4%/yr, Standard Lithium (SLI) -35.5%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Rio Tinto (RIO) has been the steadiest (Sigma Lithium (SGML) 111.9%, Rio Tinto (RIO) 30.7%, Standard Lithium (SLI) 66.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, SGML, RIO and SLI?

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 (RIO) 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.