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Stock Comparison

DKI vs OPAL vs CLNE vs IDAI

Revenue, margins, valuation, and 5-year total return — side by side.

Live fundamentals10-year financials5-year price chart
DKI
DarkIris Inc. Class A Ordinary Shares

Electronic Gaming & Multimedia

Communication ServicesNASDAQ • HK
Market Cap$7M
5Y Perf.-42.5%
OPAL
OPAL Fuels Inc.

Regulated Gas

UtilitiesNASDAQ • US
Market Cap$60M
5Y Perf.-78.7%
CLNE
Clean Energy Fuels Corp.

Oil & Gas Refining & Marketing

EnergyNASDAQ • US
Market Cap$452M
5Y Perf.-74.0%
IDAI
T Stamp Inc.

Software - Application

TechnologyNASDAQ • US
Market Cap$3M
5Y Perf.+101.8%

DKI vs OPAL vs CLNE vs IDAI — Key Financials

Market cap, revenue, margins, and valuation side-by-side.

Company Snapshot
DKI logoDKI
OPAL logoOPAL
CLNE logoCLNE
IDAI logoIDAI
IndustryElectronic Gaming & MultimediaRegulated GasOil & Gas Refining & MarketingSoftware - Application
Market Cap$7M$60M$452M$3M
Revenue (TTM)$8M$337M$439M$4M
Net Income (TTM)$1M$10M$-99M$-12M
Gross Margin38.0%22.8%11.7%60.0%
Operating Margin14.6%-0.8%7.4%-183.3%
Forward P/E5.5x13.9x
Total Debt$0.00$352M$99M$4M
Cash & Equiv.$314K$24M$158M$3M

DKI vs OPAL vs CLNE vs IDAILong-Term Stock Performance

Price return indexed to 100 at period start. Dividends excluded.

DKI
OPAL
CLNE
IDAI
StockMay 21May 26Return
OPAL Fuels Inc. (OPAL)10021.3-78.7%
Clean Energy Fuels … (CLNE)10026.0-74.0%
T Stamp Inc. (IDAI)100201.8+101.8%

Price return only. Dividends and distributions are not included.

Quick Verdict: DKI vs OPAL vs CLNE vs IDAI

Each card shows where this stock fits in a portfolio — not just who wins on paper.

Bottom line: DKI leads in 5 of 7 categories, making it the strongest pick for growth and revenue expansion and valuation and capital efficiency. OPAL Fuels Inc. is the stronger pick specifically for dividend income and shareholder returns. CLNE also leads in specific categories worth noting. This set spans 3 sectors — these stocks serve different portfolio roles, not just different price points.
DKI
DarkIris Inc. Class A Ordinary Shares
The Income Pick

DKI carries the broadest edge in this set and is the clearest fit for income & stability and defensive.

  • beta 1.04
  • Beta 1.04, current ratio 1.71x
  • 100.5% revenue growth vs IDAI's -32.4%
  • Better valuation composite
Best for: income & stability and defensive
OPAL
OPAL Fuels Inc.
The Growth Play

OPAL is the #2 pick in this set and the best alternative if growth exposure is your priority.

  • Rev growth 16.3%, EPS growth 6.4%, 3Y rev CAGR 14.0%
  • 17.2% yield; the other 3 pay no meaningful dividend
Best for: growth exposure
CLNE
Clean Energy Fuels Corp.
The Long-Run Compounder

CLNE is the clearest fit if your priority is long-term compounding and sleep-well-at-night.

  • -34.2% 10Y total return vs IDAI's 87.0%
  • Lower volatility, beta 1.04, Low D/E 17.5%, current ratio 2.32x
  • +7.3% vs DKI's -93.7%
Best for: long-term compounding and sleep-well-at-night
IDAI
T Stamp Inc.
The Secondary Option

IDAI lags the leaders in this set but could rank higher in a more targeted comparison.

Best for: technology exposure
See the full category breakdown
CategoryWinnerWhy
GrowthDKI logoDKI100.5% revenue growth vs IDAI's -32.4%
ValueDKI logoDKIBetter valuation composite
Quality / MarginsDKI logoDKI13.8% margin vs IDAI's -316.4%
Stability / SafetyDKI logoDKIBeta 1.04 vs IDAI's 1.94
DividendsOPAL logoOPAL17.2% yield; the other 3 pay no meaningful dividend
Momentum (1Y)CLNE logoCLNE+7.3% vs DKI's -93.7%
Efficiency (ROA)DKI logoDKI78.4% ROA vs IDAI's -105.4%, ROIC 139.6% vs -219.6%

DKI vs OPAL vs CLNE vs IDAI — Revenue Breakdown by Segment

How each company's revenue is distributed across its business units

DKIDarkIris Inc. Class A Ordinary Shares

Segment breakdown not available.

OPALOPAL Fuels Inc.
FY 2024
Environmental Credits
86.8%$176M
Service
10.8%$22M
Parts
1.9%$4M
Product and Service, Other
0.6%$1M
CLNEClean Energy Fuels Corp.
FY 2025
Product
77.0%$365M
Service
12.5%$59M
Station construction sales
7.2%$34M
LCFS Credits
2.7%$13M
Other services
0.6%$3M
Federal Alternative Fuels Tax Credit
0.0%$198,000
IDAIT Stamp Inc.
FY 2024
Professional Services (Over Time)
72.5%$2M
License Fees (Over Time)
27.5%$573,000

DKI vs OPAL vs CLNE vs IDAI — Financial Metrics

Side-by-side numbers across 4 stocks — who leads on profitability, valuation, growth, and risk.

BEST OVERALLDKILAGGINGIDAI

Income & Cash Flow (Last 12 Months)

Evenly matched — DKI and CLNE and IDAI each lead in 2 of 6 comparable metrics.

CLNE is the larger business by revenue, generating $439M annually — 117.7x IDAI's $4M. DKI is the more profitable business, keeping 13.8% of every revenue dollar as net income compared to IDAI's -3.2%. On growth, IDAI holds the edge at +70.7% YoY revenue growth, suggesting stronger near-term business momentum.

MetricDKI logoDKIDarkIris Inc. Cla…OPAL logoOPALOPAL Fuels Inc.CLNE logoCLNEClean Energy Fuel…IDAI logoIDAIT Stamp Inc.
RevenueTrailing 12 months$8M$337M$439M$4M
EBITDAEarnings before interest/tax$20M$62M-$6M
Net IncomeAfter-tax profit$10M-$99M-$12M
Free Cash FlowCash after capex-$59M$19M-$8M
Gross MarginGross profit ÷ Revenue+38.0%+22.8%+11.7%+60.0%
Operating MarginEBIT ÷ Revenue+14.6%-0.8%+7.4%-183.3%
Net MarginNet income ÷ Revenue+13.8%+2.9%-22.7%-3.2%
FCF MarginFCF ÷ Revenue+0.5%-17.4%+4.3%-2.2%
Rev. Growth (YoY)Latest quarter vs prior year-14.1%+13.3%+70.7%
EPS Growth (YoY)Latest quarter vs prior year+90.0%+32.1%
Evenly matched — DKI and CLNE and IDAI each lead in 2 of 6 comparable metrics.

Valuation Metrics

Evenly matched — OPAL and CLNE each lead in 2 of 5 comparable metrics.

At 5.5x trailing earnings, DKI trades at a 60% valuation discount to OPAL's 13.9x P/E. On an enterprise value basis, DKI's 5.7x EV/EBITDA is more attractive than CLNE's 83.1x.

MetricDKI logoDKIDarkIris Inc. Cla…OPAL logoOPALOPAL Fuels Inc.CLNE logoCLNEClean Energy Fuel…IDAI logoIDAIT Stamp Inc.
Market CapShares × price$7M$60M$452M$3M
Enterprise ValueMkt cap + debt − cash$7M$388M$393M$4M
Trailing P/EPrice ÷ TTM EPS5.49x13.87x-2.04x-0.20x
Forward P/EPrice ÷ next-FY EPS est.
PEG RatioP/E ÷ EPS growth rate
EV / EBITDAEnterprise value multiple5.68x13.80x83.05x
Price / SalesMarket cap ÷ Revenue0.88x0.17x1.06x0.82x
Price / BookPrice ÷ Book value/share6.45x0.12x0.80x0.80x
Price / FCFMarket cap ÷ FCF166.95x7.55x
Evenly matched — OPAL and CLNE each lead in 2 of 5 comparable metrics.

Profitability & Efficiency

DKI leads this category, winning 5 of 9 comparable metrics.

DKI delivers a 117.3% return on equity — every $100 of shareholder capital generates $117 in annual profit, vs $-190 for IDAI. CLNE carries lower financial leverage with a 0.18x debt-to-equity ratio, signaling a more conservative balance sheet compared to IDAI's 1.30x. On the Piotroski fundamental quality scale (0–9), OPAL scores 6/9 vs IDAI's 1/9, reflecting solid financial health.

MetricDKI logoDKIDarkIris Inc. Cla…OPAL logoOPALOPAL Fuels Inc.CLNE logoCLNEClean Energy Fuel…IDAI logoIDAIT Stamp Inc.
ROE (TTM)Return on equity+117.3%+2.4%-17.2%-189.5%
ROA (TTM)Return on assets+78.4%+1.0%-9.2%-105.4%
ROICReturn on invested capital+139.6%+0.5%-9.4%-2.2%
ROCEReturn on capital employed+123.7%+0.6%-9.4%-194.9%
Piotroski ScoreFundamental quality 0–95651
Debt / EquityFinancial leverage0.71x0.18x1.30x
Net DebtTotal debt minus cash-$313,735$328M-$59M$1M
Cash & Equiv.Liquid assets$313,735$24M$158M$3M
Total DebtShort + long-term debt$0$352M$99M$4M
Interest CoverageEBIT ÷ Interest expense0.18x-1.07x-22.08x
DKI leads this category, winning 5 of 9 comparable metrics.

Total Returns (Dividends Reinvested)

CLNE leads this category, winning 4 of 6 comparable metrics.

A $10,000 investment in CLNE five years ago would be worth $2,534 today (with dividends reinvested), compared to $90 for IDAI. Over the past 12 months, CLNE leads with a +7.3% total return vs DKI's -93.7%. The 3-year compound annual growth rate (CAGR) favors CLNE at -22.1% vs DKI's -60.2% — a key indicator of consistent wealth creation.

MetricDKI logoDKIDarkIris Inc. Cla…OPAL logoOPALOPAL Fuels Inc.CLNE logoCLNEClean Energy Fuel…IDAI logoIDAIT Stamp Inc.
YTD ReturnYear-to-date-1.3%-12.6%-4.6%-43.1%
1-Year ReturnPast 12 months-93.7%-1.4%+7.3%-6.1%
3-Year ReturnCumulative with dividends-93.7%-68.5%-52.8%-89.5%
5-Year ReturnCumulative with dividends-93.7%-78.8%-74.7%-99.1%
10-Year ReturnCumulative with dividends-93.7%-78.8%-34.2%+87.0%
CAGR (3Y)Annualised 3-year return-60.2%-31.9%-22.1%-52.8%
CLNE leads this category, winning 4 of 6 comparable metrics.

Risk & Volatility

Evenly matched — DKI and CLNE each lead in 1 of 2 comparable metrics.

DKI is the less volatile stock with a 1.04 beta — it tends to amplify market swings less than IDAI's 1.94 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. CLNE currently trades 66.2% from its 52-week high vs DKI's 2.3% drawdown — a narrower gap to the peak suggests stronger recent price momentum.

MetricDKI logoDKIDarkIris Inc. Cla…OPAL logoOPALOPAL Fuels Inc.CLNE logoCLNEClean Energy Fuel…IDAI logoIDAIT Stamp Inc.
Beta (5Y)Sensitivity to S&P 5001.04x1.56x1.04x1.94x
52-Week HighHighest price in past year$240.00$4.08$3.11$5.28
52-Week LowLowest price in past year$0.37$1.65$1.69$1.80
% of 52W HighCurrent price vs 52-week peak+2.3%+51.0%+66.2%+43.6%
RSI (14)Momentum oscillator 0–10043.143.237.337.4
Avg Volume (50D)Average daily shares traded397K193K1.4M41K
Evenly matched — DKI and CLNE each lead in 1 of 2 comparable metrics.

Analyst Outlook

Insufficient data to determine a leader in this category.

OPAL is the only dividend payer here at 17.21% yield — a key consideration for income-focused portfolios.

MetricDKI logoDKIDarkIris Inc. Cla…OPAL logoOPALOPAL Fuels Inc.CLNE logoCLNEClean Energy Fuel…IDAI logoIDAIT Stamp Inc.
Analyst RatingConsensus buy/hold/sellBuy
Price TargetConsensus 12-month target$3.50
# AnalystsCovering analysts22
Dividend YieldAnnual dividend ÷ price+17.2%
Dividend StreakConsecutive years of raises0
Dividend / ShareAnnual DPS$0.36
Buyback YieldShare repurchases ÷ mkt cap0.0%0.0%+1.8%+2.2%
Insufficient data to determine a leader in this category.
Key Takeaway

DKI leads in 1 of 6 categories (Profitability & Efficiency). CLNE leads in 1 (Total Returns). 3 tied.

Best OverallDarkIris Inc. Class A Ordin… (DKI)Leads 1 of 6 categories
Loading custom metrics...

DKI vs OPAL vs CLNE vs IDAI: Key Questions Answered

9 questions · data-driven answers · updated daily

01

Is DKI or OPAL or CLNE or IDAI a better buy right now?

For growth investors, DarkIris Inc.

Class A Ordinary Shares (DKI) is the stronger pick with 100. 5% revenue growth year-over-year, versus -32. 4% for T Stamp Inc. (IDAI). DarkIris Inc. Class A Ordinary Shares (DKI) offers the better valuation at 5. 5x trailing P/E, making it the more compelling value choice. Analysts rate Clean Energy Fuels Corp. (CLNE) a "Buy" — based on 22 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

02

Which has the better valuation — DKI or OPAL or CLNE or IDAI?

On trailing P/E, DarkIris Inc.

Class A Ordinary Shares (DKI) is the cheapest at 5. 5x versus OPAL Fuels Inc. at 13. 9x.

03

Which is the better long-term investment — DKI or OPAL or CLNE or IDAI?

Over the past 5 years, Clean Energy Fuels Corp.

(CLNE) delivered a total return of -74. 7%, compared to -99. 1% for T Stamp Inc. (IDAI). Over 10 years, the gap is even starker: IDAI returned +87. 0% versus DKI's -93. 7%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

04

Which is safer — DKI or OPAL or CLNE or IDAI?

By beta (market sensitivity over 5 years), DarkIris Inc.

Class A Ordinary Shares (DKI) is the lower-risk stock at 1. 04β versus T Stamp Inc. 's 1. 94β — meaning IDAI is approximately 86% more volatile than DKI relative to the S&P 500. On balance sheet safety, Clean Energy Fuels Corp. (CLNE) carries a lower debt/equity ratio of 18% versus 130% for T Stamp Inc. — giving it more financial flexibility in a downturn.

05

Which is growing faster — DKI or OPAL or CLNE or IDAI?

By revenue growth (latest reported year), DarkIris Inc.

Class A Ordinary Shares (DKI) is pulling ahead at 100. 5% versus -32. 4% for T Stamp Inc. (IDAI). On earnings-per-share growth, the picture is similar: OPAL Fuels Inc. grew EPS 638. 9% year-over-year, compared to -173. 0% for Clean Energy Fuels Corp.. Over a 3-year CAGR, OPAL leads at 14. 0% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

06

Which has better profit margins — DKI or OPAL or CLNE or IDAI?

DarkIris Inc.

Class A Ordinary Shares (DKI) is the more profitable company, earning 13. 8% net margin versus -344. 1% for T Stamp Inc. — meaning it keeps 13. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: DKI leads at 14. 6% versus -303. 9% for IDAI. At the gross margin level — before operating expenses — IDAI leads at 65. 4%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

07

Which pays a better dividend — DKI or OPAL or CLNE or IDAI?

In this comparison, OPAL (17.

2% yield) pays a dividend. DKI, CLNE, IDAI do not pay a meaningful dividend and should not be held primarily for income.

08

Is DKI or OPAL or CLNE or IDAI better for a retirement portfolio?

For long-horizon retirement investors, OPAL Fuels Inc.

(OPAL) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (17. 2% yield). T Stamp Inc. (IDAI) carries a higher beta of 1. 94 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (OPAL: -78. 8%, IDAI: +87. 0%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

09

What are the main differences between DKI and OPAL and CLNE and IDAI?

These companies operate in different sectors (DKI (Communication Services) and OPAL (Utilities) and CLNE (Energy) and IDAI (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: DKI is a small-cap high-growth stock; OPAL is a small-cap high-growth stock; CLNE is a small-cap quality compounder stock; IDAI is a small-cap quality compounder stock. OPAL pays a dividend while DKI, CLNE, IDAI do not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.

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DKI

High-Growth Compounder

  • Sector: Communication Services
  • Market Cap > $100B
  • Revenue Growth > 50%
  • Net Margin > 8%
Run This Screen
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OPAL

Income & Dividend Stock

  • Sector: Utilities
  • Market Cap > $100B
  • Gross Margin > 13%
  • Dividend Yield > 6.8%
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CLNE

Quality Business

  • Sector: Energy
  • Market Cap > $100B
  • Revenue Growth > 6%
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IDAI

High-Growth Disruptor

  • Sector: Technology
  • Market Cap > $100B
  • Revenue Growth > 35%
  • Gross Margin > 35%
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Custom Screen

Beat Both

Find stocks that outperform DKI and OPAL and CLNE and IDAI on the metrics below

Revenue Growth>
%
(DKI: 100.5% · OPAL: -14.1%)
Net Margin>
%
(DKI: 13.8% · OPAL: 2.9%)
P/E Ratio<
x
(DKI: 5.5x · OPAL: 13.9x)

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