MNTK vs PSX vs CLNE Stock Comparison

Montauk Renewables, Phillips 66 and Clean Energy Fuels Prices as of Oct 27, 2026 Peers: Industry group
PSX Phillips 66
$268.39 +4.9% 1M +98.2% 1Y
Market cap
$109.91B
P/E
15.5x
Revenue (TTM)
$156.36B
Div. yield
0.02%
Integrated Oil and Gas Energy
10 wins

Head to Head

11 decided of 12

Phillips 66 leads on 10 of the 12 questions below (Phillips 66 10, Clean Energy Fuels 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionMNTKPSXCLNELeader
Larger companyMarket capitalisation $324.45M $109.91B $316.07M PSX
Cheaper on earningsLower P/E, profitable companies only 40.9x 15.5x -3.4x PSX
Cheaper on forward earningsLower price / next fiscal year consensus EPS 18.7x 8.3x — PSX
Faster revenue growthRevenue growth, trailing twelve months +4.3% +15.5% +5.2% PSX
More profitableNet margin, trailing twelve months 4.2% 4.5% -21.3% PSX
Better return on capitalReturn on invested capital 0.3% 14.8% -4.1% PSX
Less leveragedLower net debt / EBITDA 3.9x 1.3x 3.3x PSX
Higher dividend yieldTrailing dividend yield 0.00% 0.02% 0.00% –
Better 1-year returnPrice return, last 12 months +5.7% +98.2% -51.2% PSX
Better 5-year returnAnnualised price return, 5 years -27.8%/yr +28.5%/yr -30.7%/yr PSX
Less volatileAnnualised volatility, 1 year 78.5% 32.8% 53.7% PSX
Higher overall scoreMean of the five percentile scores vs peers 51/100 54/100 65/100 CLNE

Percentile Scorecard

MNTKPSXCLNE

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

AxisMNTKPSXCLNE
Valuation 70 #4 of 11 47 #53 of 99 90 #2 of 11
Growth 20 #9 of 11 84 #16 of 97 60 #5 of 11
Profitability 75 #3 of 9 47 #51 of 96 50 #5 of 9
Financial Health 40 #7 of 11 48 #54 of 102 60 #5 of 11
Shareholder Returns – 45 #42 of 76 –
Overall 51 54 65
  • MNTK ranked among 11 companies in Renewable Fuels
  • PSX ranked among 103 companies in Oil and Gas Upstream
  • CLNE ranked among 11 companies in Renewable Fuels

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodMNTKPSXCLNESPY
1 month -23.5%+4.9%-8.8% -0.2%
3 months +23.1%+30.4%-23.6% +3.9%
6 months +54.5%+62.5%-33.9% +8.2%
Year to date +34.1%+108.0%-30.5% +12.9%
1 year +5.7%+98.2%-51.2% +12.3%
3 years -77.0%+141.9%-56.5% +87.4%
3 years, per year -38.8%+34.3%-24.3% +23.3%
5 years -80.3%+249.7%-84.0% +67.9%
5 years, per year -27.8%+28.5%-30.7% +10.9%
10 years —+235.5%-65.2% +261.1%
10 years, per year —+12.9%-10.0% +13.7%

Risk

MeasureMNTKPSXCLNESPY
Volatility, 1Y 78.5%32.8%53.7% 12.7%
Downside volatility, 1Y 75.0%30.9%59.0% 12.7%
Beta vs S&P 500, 1Y 1.30-0.37-0.13 1.00
Return / volatility, 1Y 0.072.99-0.95 0.97
Max drawdown, 5Y -94.5%-46.2%-86.2% -25.4%
From 52-week high -23.8%-9.7%-51.2% -1.2%
52-week high $2.94$297.20$2.99 $779.14
52-week low $1.12$127.75$1.35 $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.

MultipleMNTKPSXCLNE
P/E now vs peer median 40.5xmedian 10.6x 15.2xmedian 13.0x -3.4xmedian 10.6x
P/S now vs peer median 1.7xmedian 1.2x 0.7xmedian 2.1x 0.7xmedian 1.2x
EV/EBITDA now vs peer median 13.1xmedian 14.2x 9.6xmedian 5.9x 15.4xmedian 14.2x
P/FCF now vs peer median -3.8xmedian 14.1x 16.7xmedian 11.1x 14.1xmedian 14.1x
P/B now vs peer median 1.2xmedian 1.1x 3.3xmedian 1.5x 0.6xmedian 1.1x
PEG now vs peer median -2.21median 0.19 -1.56median 2.27 0.45median 0.19

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 monthsMNTKPSXCLNE
Revenue $189.10M $156.36B $442.37M
Gross profit – $24.12B $121.76M
Operating income $1.13M $10.04B -$32.36M
Net income $7.93M $7.19B -$94.76M
Free cash flow -$83.37M $6.39B $22.86M
EPS (diluted) $0.06 $17.62 $-0.43
Cash & equivalents $15.76M $4.10B $59.15M
Total debt $149.64M $20.57B $229.02M
Shares (diluted) 143.93M 402.62M 220.26M
Enterprise value $252.23M $97.70B -$345.07M

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
MetricMNTKPSXCLNE
P/E 40.5x 15.2x -3.4x
P/FCF -3.8x 16.7x 14.1x
P/Operating cash flow 7.4x 12.0x 6.9x
P/S 1.7x 0.7x 0.7x
P/B 1.2x 3.3x 0.6x
P/Tangible book 1.3x 3.4x 0.6x
EV/EBITDA 13.1x 9.6x 15.4x
EV/EBIT 404.2x 12.3x -12.7x
EV/Revenue 2.4x 0.8x 0.9x
EV/FCF -5.5x 19.3x 18.0x
EV/Operating cash flow 10.5x 13.8x 8.8x
PEG (3Y EPS CAGR) -2.21 -1.56 0.45

Growth

14 metrics
MetricMNTKPSXCLNE
Revenue growth (1Y) 4.3% 15.5% 5.2%
Revenue CAGR (3Y) 2.1% -0.9% -1.4%
Gross profit growth (1Y) – 53.5% -0.3%
Gross profit CAGR (3Y) – -3.4% 7.0%
Operating income growth (1Y) -89.7% 223.6% 79.4%
Operating income CAGR (3Y) -62.7% -13.3% 22.0%
Net income growth (1Y) 199.8% 293.4% 53.6%
Net income CAGR (3Y) -18.0% -14.1% -7.2%
EPS growth (1Y) 197.9% 318.3% 53.7%
EPS CAGR (3Y) -18.3% -9.8% -7.7%
Operating cash flow growth (1Y) -6.9% 165.5% -54.5%
Operating cash flow CAGR (3Y) -10.4% -3.9% 19.2%
Free cash flow growth (1Y) -312.7% 329.7% -60.1%
Free cash flow CAGR (3Y) -100.9% -7.1% 36.4%

Profitability

14 metrics
MetricMNTKPSXCLNE
Gross margin – 15.4% 27.5%
EBITDA margin 18.4% 8.2% 6.0%
Operating margin 0.6% 6.4% -7.3%
Pretax margin 2.0% 5.7% -21.4%
Net margin 4.2% 4.5% -21.3%
FCF margin -44.1% 4.1% 5.2%
Operating cash flow margin 23.0% 5.7% 10.5%
Return on equity 3.0% 23.1% -16.9%
Return on assets 1.7% 8.7% -9.2%
Return on invested capital 0.3% 14.8% -4.1%
Return on capital employed 0.3% 15.5% -3.6%
Asset turnover 0.4x 1.9x 0.4x
Cash conversion (OCF / net income) 5.5x 1.2x -0.5x
Stock comp / revenue 1.0% – 2.0%

Financial Health

11 metrics
MetricMNTKPSXCLNE
Debt / assets 31.8% 25.1% 22.3%
Debt / equity 0.6x 0.6x 0.4x
Net debt / EBITDA 3.9x 1.3x 3.3x
Debt / FCF -1.8x 3.2x 10.0x
Liabilities / assets 43.8% 60.0% 45.5%
Equity / assets 56.2% 40.0% 54.5%
Interest coverage 0.2x 8.7x -0.7x
Current ratio 0.6x 1.3x 2.5x
Quick ratio 0.5x 0.9x 1.9x
Cash ratio 0.4x 0.2x 1.1x
Altman Z-score 1.47 4.33 -0.76

Shareholder Returns

7 metrics
MetricMNTKPSXCLNE
Dividend yield – 1.9% –
Net buyback yield – 0.9% 0.0%
Shareholder yield – 2.8% 0.0%
Payout ratio (earnings) – 27.6% –
Payout ratio (FCF) – 31.0% –
Dividend growth (1Y) – 4.1% –
Dividend CAGR (3Y) – 1.8% –

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.

ConsensusMNTKPSXCLNE
Forward P/E 18.7xFY2026 8.3xFY2026 –
EPS, next fiscal year $0.12FY2026 $32.20FY2026 $-0.02FY2026
EPS growth, next FY +1,100.0%FY2026 +400.0%FY2026 -300.0%FY2026
EPS growth, the year after +41.7% -1.4% –
Revenue, next fiscal year $199.18MFY2026 $165.53BFY2026 $453.71MFY2026
Revenue growth, next FY +12.9%FY2026 +21.6%FY2026 +6.8%FY2026
Revenue growth, the year after +28.2% -4.2% +2.2%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersMNTKPSXCLNE
Held by institutions 14.9% 78.8% 49.3%
Institutions holding 92 2,102 193
Change in shares held, QoQ +3.2% +1.3% +1.9%
Institutions buying 52 967 86
Institutions selling 26 729 59
Buyers to sellers 2.00 1.33 1.46

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.

MNTKPSXCLNE
MNTK 1.00 0.06 0.07
PSX 0.06 1.00 0.20
CLNE 0.07 0.20 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, MNTK, PSX and CLNE?

Phillips 66 (PSX) is the largest by market capitalisation: Montauk Renewables (MNTK) $324.45M, Phillips 66 (PSX) $109.91B, Clean Energy Fuels (CLNE) $316.07M.

Which stock is cheaper, MNTK, PSX and CLNE?

Phillips 66 (PSX) trades on the lowest price-to-earnings ratio (Montauk Renewables (MNTK) 40.9x, Phillips 66 (PSX) 15.5x, Clean Energy Fuels (CLNE) -3.4x). On next year's consensus earnings, Phillips 66 (PSX) is cheapest (Montauk Renewables (MNTK) 18.7x, Phillips 66 (PSX) 8.3x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Phillips 66 (PSX) grew revenue fastest over the trailing twelve months: Montauk Renewables (MNTK) +4.3%, Phillips 66 (PSX) +15.5%, Clean Energy Fuels (CLNE) +5.2%.

Which company is more profitable?

Phillips 66 (PSX) has the highest net margin (Montauk Renewables (MNTK) 4.2%, Phillips 66 (PSX) 4.5%, Clean Energy Fuels (CLNE) -21.3%). On return on invested capital, Phillips 66 (PSX) leads (Montauk Renewables (MNTK) 0.3%, Phillips 66 (PSX) 14.8%, Clean Energy Fuels (CLNE) -4.1%).

Which stock has performed better?

Over the past year Phillips 66 (PSX) returned the most: Montauk Renewables (MNTK) +5.7%, Phillips 66 (PSX) +98.2%, Clean Energy Fuels (CLNE) -51.2%. Over five years, Phillips 66 (PSX) compounded fastest (Montauk Renewables (MNTK) -27.8%/yr, Phillips 66 (PSX) +28.5%/yr, Clean Energy Fuels (CLNE) -30.7%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Montauk Renewables (MNTK) 0.00%, Phillips 66 (PSX) 0.02%, Clean Energy Fuels (CLNE) 0.00%. Montauk Renewables (MNTK) and Clean Energy Fuels (CLNE) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Phillips 66 (PSX) has been the steadiest (Montauk Renewables (MNTK) 78.5%, Phillips 66 (PSX) 32.8%, Clean Energy Fuels (CLNE) 53.7%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, MNTK, PSX and CLNE?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Phillips 66 (PSX) leads on 10. 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.