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Stock Comparison

NPWR vs NET vs FSLY vs CLNE

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

Live fundamentals10-year financials5-year price chart
NPWR
NET Power Inc.

Industrial - Machinery

IndustrialsNYSE • US
Market Cap$284M
5Y Perf.-79.0%
NET
Cloudflare, Inc.

Software - Infrastructure

TechnologyNYSE • US
Market Cap$90.83B
5Y Perf.+112.9%
FSLY
Fastly, Inc.

Software - Application

TechnologyNYSE • US
Market Cap$3.05B
5Y Perf.-55.3%
CLNE
Clean Energy Fuels Corp.

Oil & Gas Refining & Marketing

EnergyNASDAQ • US
Market Cap$507M
5Y Perf.-70.9%

NPWR vs NET vs FSLY vs CLNE — Key Financials

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

Company Snapshot
NPWR logoNPWR
NET logoNET
FSLY logoFSLY
CLNE logoCLNE
IndustryIndustrial - MachinerySoftware - InfrastructureSoftware - ApplicationOil & Gas Refining & Marketing
Market Cap$284M$90.83B$3.05B$507M
Revenue (TTM)$0.00$2.33B$653M$439M
Net Income (TTM)$-579M$-87M$-103M$-99M
Gross Margin73.5%58.7%11.7%
Operating Margin-9.1%-15.9%7.4%
Forward P/E228.9x73.1x
Total Debt$4M$3.70B$430M$99M
Cash & Equiv.$199M$944M$181M$158M

NPWR vs NET vs FSLY vs CLNELong-Term Stock Performance

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

NPWR
NET
FSLY
CLNE
StockAug 21May 26Return
NET Power Inc. (NPWR)10021.0-79.0%
Cloudflare, Inc. (NET)100212.9+112.9%
Fastly, Inc. (FSLY)10044.7-55.3%
Clean Energy Fuels … (CLNE)10029.1-70.9%

Price return only. Dividends and distributions are not included.

Quick Verdict: NPWR vs NET vs FSLY vs CLNE

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

Bottom line: NET and FSLY are tied at the top with 3 categories each — the right choice depends on your priorities. Fastly, Inc. is the stronger pick specifically for valuation and capital efficiency and capital preservation and lower volatility. This set spans 3 sectors — these stocks serve different portfolio roles, not just different price points.
NPWR
NET Power Inc.
The Specific-Use Pick

NPWR plays a supporting role in this comparison — it may shine differently against other peers.

Best for: industrials exposure
NET
Cloudflare, Inc.
The Growth Play

NET carries the broadest edge in this set and is the clearest fit for growth exposure and long-term compounding.

  • Rev growth 29.8%, EPS growth -26.1%, 3Y rev CAGR 30.5%
  • 13.3% 10Y total return vs FSLY's -18.7%
  • 29.8% revenue growth vs NPWR's -100.0%
  • -3.7% margin vs CLNE's -22.7%
Best for: growth exposure and long-term compounding
FSLY
Fastly, Inc.
The Income Pick

FSLY is the #2 pick in this set and the best alternative if income & stability and sleep-well-at-night is your priority.

  • beta 0.95
  • Lower volatility, beta 0.95, Low D/E 46.3%, current ratio 2.61x
  • Beta 0.95, current ratio 2.61x
  • Lower P/E (73.1x vs 228.9x)
Best for: income & stability and sleep-well-at-night
CLNE
Clean Energy Fuels Corp.
The Secondary Option

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

Best for: energy exposure
See the full category breakdown
CategoryWinnerWhy
GrowthNET logoNET29.8% revenue growth vs NPWR's -100.0%
ValueFSLY logoFSLYLower P/E (73.1x vs 228.9x)
Quality / MarginsNET logoNET-3.7% margin vs CLNE's -22.7%
Stability / SafetyFSLY logoFSLYBeta 0.95 vs NPWR's 3.18
DividendsTieNone of these 4 stocks pay a meaningful dividend
Momentum (1Y)FSLY logoFSLY+223.4% vs NPWR's +13.3%
Efficiency (ROA)NET logoNET-1.5% ROA vs NPWR's -47.6%

NPWR vs NET vs FSLY vs CLNE — Revenue Breakdown by Segment

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

NPWRNET Power Inc.

Segment breakdown not available.

NETCloudflare, Inc.
FY 2025
Reportable Segment
100.0%$2.2B
FSLYFastly, Inc.
FY 2025
Network Services
76.6%$478M
Security
20.0%$125M
Other
3.4%$21M
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

NPWR vs NET vs FSLY vs CLNE — Financial Metrics

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

BEST OVERALLNETLAGGINGFSLY

Income & Cash Flow (Last 12 Months)

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

NET and NPWR operate at a comparable scale, with $2.3B and $0 in trailing revenue. NET is the more profitable business, keeping -3.7% of every revenue dollar as net income compared to CLNE's -22.7%. On growth, NET holds the edge at +33.5% YoY revenue growth, suggesting stronger near-term business momentum.

MetricNPWR logoNPWRNET Power Inc.NET logoNETCloudflare, Inc.FSLY logoFSLYFastly, Inc.CLNE logoCLNEClean Energy Fuel…
RevenueTrailing 12 months$0$2.3B$653M$439M
EBITDAEarnings before interest/tax$62M$67M-$32M$62M
Net IncomeAfter-tax profit-$579M-$87M-$103M-$99M
Free Cash FlowCash after capex-$154M$365M$59M$19M
Gross MarginGross profit ÷ Revenue+73.5%+58.7%+11.7%
Operating MarginEBIT ÷ Revenue-9.1%-15.9%+7.4%
Net MarginNet income ÷ Revenue-3.7%-15.8%-22.7%
FCF MarginFCF ÷ Revenue+15.7%+9.0%+4.3%
Rev. Growth (YoY)Latest quarter vs prior year+33.5%+19.8%+13.3%
EPS Growth (YoY)Latest quarter vs prior year+66.7%+36.4%+51.9%+90.0%
NET leads this category, winning 4 of 6 comparable metrics.

Valuation Metrics

CLNE leads this category, winning 3 of 6 comparable metrics.

On an enterprise value basis, CLNE's 94.6x EV/EBITDA is more attractive than NET's 1062.7x.

MetricNPWR logoNPWRNET Power Inc.NET logoNETCloudflare, Inc.FSLY logoFSLYFastly, Inc.CLNE logoCLNEClean Energy Fuel…
Market CapShares × price$284M$90.8B$3.0B$507M
Enterprise ValueMkt cap + debt − cash$89M$93.6B$3.3B$448M
Trailing P/EPrice ÷ TTM EPS-0.28x-886.38x-23.49x-2.29x
Forward P/EPrice ÷ next-FY EPS est.228.90x73.12x
PEG RatioP/E ÷ EPS growth rate
EV / EBITDAEnterprise value multiple1062.71x94.64x
Price / SalesMarket cap ÷ Revenue41.90x4.89x1.19x
Price / BookPrice ÷ Book value/share0.30x61.38x3.08x0.90x
Price / FCFMarket cap ÷ FCF280.08x46.38x8.47x
CLNE leads this category, winning 3 of 6 comparable metrics.

Profitability & Efficiency

NET leads this category, winning 4 of 9 comparable metrics.

NET delivers a -6.2% return on equity — every $100 of shareholder capital generates $-6 in annual profit, vs $-50 for NPWR. NPWR carries lower financial leverage with a 0.01x debt-to-equity ratio, signaling a more conservative balance sheet compared to NET's 2.54x. On the Piotroski fundamental quality scale (0–9), FSLY scores 5/9 vs NPWR's 1/9, reflecting solid financial health.

MetricNPWR logoNPWRNET Power Inc.NET logoNETCloudflare, Inc.FSLY logoFSLYFastly, Inc.CLNE logoCLNEClean Energy Fuel…
ROE (TTM)Return on equity-49.8%-6.2%-10.9%-17.2%
ROA (TTM)Return on assets-47.6%-1.5%-6.9%-9.2%
ROICReturn on invested capital-4.6%-7.8%-9.4%
ROCEReturn on capital employed-6.6%-8.9%-9.4%
Piotroski ScoreFundamental quality 0–91355
Debt / EquityFinancial leverage0.01x2.54x0.46x0.18x
Net DebtTotal debt minus cash-$196M$2.8B$250M-$59M
Cash & Equiv.Liquid assets$199M$944M$181M$158M
Total DebtShort + long-term debt$4M$3.7B$430M$99M
Interest CoverageEBIT ÷ Interest expense-10.22x-15.29x-1.07x
NET leads this category, winning 4 of 9 comparable metrics.

Total Returns (Dividends Reinvested)

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

A $10,000 investment in NET five years ago would be worth $35,891 today (with dividends reinvested), compared to $2,081 for NPWR. Over the past 12 months, FSLY leads with a +223.4% total return vs NPWR's +13.3%. The 3-year compound annual growth rate (CAGR) favors NET at 77.1% vs NPWR's -41.7% — a key indicator of consistent wealth creation.

MetricNPWR logoNPWRNET Power Inc.NET logoNETCloudflare, Inc.FSLY logoFSLYFastly, Inc.CLNE logoCLNEClean Energy Fuel…
YTD ReturnYear-to-date-18.3%+31.1%+91.4%+6.9%
1-Year ReturnPast 12 months+13.3%+111.2%+223.4%+44.4%
3-Year ReturnCumulative with dividends-80.1%+455.1%+56.4%-46.3%
5-Year ReturnCumulative with dividends-79.2%+258.9%-53.4%-73.8%
10-Year ReturnCumulative with dividends-79.2%+1328.1%-18.7%-26.9%
CAGR (3Y)Annualised 3-year return-41.7%+77.1%+16.1%-18.7%
NET leads this category, winning 4 of 6 comparable metrics.

Risk & Volatility

Evenly matched — NET and FSLY each lead in 1 of 2 comparable metrics.

FSLY is the less volatile stock with a 0.95 beta — it tends to amplify market swings less than NPWR's 3.18 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. NET currently trades 98.9% from its 52-week high vs NPWR's 39.4% drawdown — a narrower gap to the peak suggests stronger recent price momentum.

MetricNPWR logoNPWRNET Power Inc.NET logoNETCloudflare, Inc.FSLY logoFSLYFastly, Inc.CLNE logoCLNEClean Energy Fuel…
Beta (5Y)Sensitivity to S&P 5003.18x1.53x0.95x1.19x
52-Week HighHighest price in past year$5.20$260.00$34.82$3.11
52-Week LowLowest price in past year$1.46$120.55$5.84$1.56
% of 52W HighCurrent price vs 52-week peak+39.4%+98.9%+56.0%+74.3%
RSI (14)Momentum oscillator 0–10075.770.161.144.6
Avg Volume (50D)Average daily shares traded701K3.7M12.9M1.3M
Evenly matched — NET and FSLY each lead in 1 of 2 comparable metrics.

Analyst Outlook

Insufficient data to determine a leader in this category.

Analyst consensus: NPWR as "Buy", NET as "Buy", FSLY as "Hold", CLNE as "Buy". Consensus price targets imply 51.5% upside for CLNE (target: $4) vs -15.8% for NET (target: $216).

MetricNPWR logoNPWRNET Power Inc.NET logoNETCloudflare, Inc.FSLY logoFSLYFastly, Inc.CLNE logoCLNEClean Energy Fuel…
Analyst RatingConsensus buy/hold/sellBuyBuyHoldBuy
Price TargetConsensus 12-month target$3.00$216.43$19.50$3.50
# AnalystsCovering analysts2401722
Dividend YieldAnnual dividend ÷ price
Dividend StreakConsecutive years of raises
Dividend / ShareAnnual DPS
Buyback YieldShare repurchases ÷ mkt cap0.0%0.0%0.0%+1.6%
Insufficient data to determine a leader in this category.
Key Takeaway

NET leads in 3 of 6 categories (Income & Cash Flow, Profitability & Efficiency). CLNE leads in 1 (Valuation Metrics). 1 tied.

Best OverallCloudflare, Inc. (NET)Leads 3 of 6 categories
Loading custom metrics...

NPWR vs NET vs FSLY vs CLNE: Key Questions Answered

9 questions · data-driven answers · updated daily

01

Is NPWR or NET or FSLY or CLNE a better buy right now?

For growth investors, Cloudflare, Inc.

(NET) is the stronger pick with 29. 8% revenue growth year-over-year, versus -100. 0% for NET Power Inc. (NPWR). Analysts rate NET Power Inc. (NPWR) a "Buy" — based on 2 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 is the better long-term investment — NPWR or NET or FSLY or CLNE?

Over the past 5 years, Cloudflare, Inc.

(NET) delivered a total return of +258. 9%, compared to -79. 2% for NET Power Inc. (NPWR). Over 10 years, the gap is even starker: NET returned +1328% versus NPWR's -79. 2%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

03

Which is safer — NPWR or NET or FSLY or CLNE?

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

(FSLY) is the lower-risk stock at 0. 95β versus NET Power Inc. 's 3. 18β — meaning NPWR is approximately 235% more volatile than FSLY relative to the S&P 500. On balance sheet safety, NET Power Inc. (NPWR) carries a lower debt/equity ratio of 1% versus 3% for Cloudflare, Inc. — giving it more financial flexibility in a downturn.

04

Which is growing faster — NPWR or NET or FSLY or CLNE?

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

(NET) is pulling ahead at 29. 8% versus -100. 0% for NET Power Inc. (NPWR). On earnings-per-share growth, the picture is similar: Fastly, Inc. grew EPS 27. 2% year-over-year, compared to -995. 5% for NET Power Inc.. Over a 3-year CAGR, NET leads at 30. 5% 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.

05

Which has better profit margins — NPWR or NET or FSLY or CLNE?

NET Power Inc.

(NPWR) is the more profitable company, earning 0. 0% net margin versus -52. 3% for Clean Energy Fuels Corp. — meaning it keeps 0. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: NPWR leads at 0. 0% versus -22. 1% for CLNE. At the gross margin level — before operating expenses — NET leads at 74. 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.

06

Is NPWR or NET or FSLY or CLNE more undervalued right now?

On forward earnings alone, Fastly, Inc.

(FSLY) trades at 73. 1x forward P/E versus 228. 9x for Cloudflare, Inc. — 155. 8x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for CLNE: 51. 5% to $3. 50.

07

Which pays a better dividend — NPWR or NET or FSLY or CLNE?

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

08

Is NPWR or NET or FSLY or CLNE better for a retirement portfolio?

For long-horizon retirement investors, Cloudflare, Inc.

(NET) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1328% 10Y return). NET Power Inc. (NPWR) carries a higher beta of 3. 18 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (NET: +1328%, NPWR: -79. 2%), 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 NPWR and NET and FSLY and CLNE?

These companies operate in different sectors (NPWR (Industrials) and NET (Technology) and FSLY (Technology) and CLNE (Energy)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: NPWR is a small-cap quality compounder stock; NET is a mid-cap high-growth stock; FSLY is a small-cap quality compounder stock; CLNE is a small-cap quality compounder stock. 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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NPWR

Quality Business

  • Sector: Industrials
  • Market Cap > $100B
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NET

High-Growth Disruptor

  • Sector: Technology
  • Market Cap > $100B
  • Revenue Growth > 16%
  • Gross Margin > 44%
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FSLY

High-Growth Disruptor

  • Sector: Technology
  • Market Cap > $100B
  • Revenue Growth > 9%
  • Gross Margin > 35%
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CLNE

Quality Business

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

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Revenue Growth>
%
(NPWR: -100.0% · NET: 33.5%)

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