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Side-by-side financial comparison of FutureFuel Corp. (FF) and Energy Vault Holdings, Inc. (NRGV). Click either name above to swap in a different company.

Energy Vault Holdings, Inc. is the larger business by last-quarter revenue ($21.9M vs $19.8M, roughly 1.1× FutureFuel Corp.). FutureFuel Corp. runs the higher net margin — -60.5% vs -148.5%, a 87.9% gap on every dollar of revenue. On growth, Energy Vault Holdings, Inc. posted the faster year-over-year revenue change (156.4% vs -67.7%). Over the past eight quarters, Energy Vault Holdings, Inc.'s revenue compounded faster (67.9% CAGR vs -41.7%).

FutureFuel Corporation is a developer and producer of chemicals and biofuels. It is listed on the New York Stock Exchange, with symbol FF.

Energy Vault is a global energy storage company specializing in gravity and kinetic energy based, long-duration energy storage products. Energy Vault's primary product is a gravity battery to store energy by stacking heavy blocks made of composite material into a structure, capturing potential energy in the elevation gain of the blocks. When demand for electricity is high, these blocks are lowered with the motors functioning as generators and delivering electricity to the grid.

FF vs NRGV — Head-to-Head

Bigger by revenue
NRGV
NRGV
1.1× larger
NRGV
$21.9M
$19.8M
FF
Growing faster (revenue YoY)
NRGV
NRGV
+224.1% gap
NRGV
156.4%
-67.7%
FF
Higher net margin
FF
FF
87.9% more per $
FF
-60.5%
-148.5%
NRGV
Faster 2-yr revenue CAGR
NRGV
NRGV
Annualised
NRGV
67.9%
-41.7%
FF

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
FF
FF
NRGV
NRGV
Revenue
$19.8M
$21.9M
Net Profit
$-12.0M
$-32.5M
Gross Margin
-46.7%
21.9%
Operating Margin
-62.9%
-32.5%
Net Margin
-60.5%
-148.5%
Revenue YoY
-67.7%
156.4%
Net Profit YoY
-529.4%
-53.7%
EPS (diluted)
$-0.28
$-0.20

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
FF
FF
NRGV
NRGV
Q1 26
$21.9M
Q4 25
$19.8M
Q3 25
$22.7M
$33.3M
Q2 25
$35.7M
$8.5M
Q1 25
$17.5M
$8.5M
Q4 24
$61.5M
$33.5M
Q3 24
$51.1M
$1.2M
Q2 24
$72.4M
$3.8M
Net Profit
FF
FF
NRGV
NRGV
Q1 26
$-32.5M
Q4 25
$-12.0M
Q3 25
$-9.3M
$-26.8M
Q2 25
$-10.4M
$-34.9M
Q1 25
$-17.6M
$-21.1M
Q4 24
$2.8M
$-61.8M
Q3 24
$-1.2M
$-26.6M
Q2 24
$9.6M
$-26.2M
Gross Margin
FF
FF
NRGV
NRGV
Q1 26
21.9%
Q4 25
-46.7%
Q3 25
-30.1%
27.0%
Q2 25
-24.6%
29.6%
Q1 25
-83.0%
57.1%
Q4 24
9.1%
7.7%
Q3 24
0.7%
40.3%
Q2 24
12.0%
27.8%
Operating Margin
FF
FF
NRGV
NRGV
Q1 26
-32.5%
Q4 25
-62.9%
Q3 25
-42.9%
-52.8%
Q2 25
-33.4%
-330.7%
Q1 25
-107.4%
-244.8%
Q4 24
2.6%
-150.6%
Q3 24
-5.6%
-2258.1%
Q2 24
7.5%
-739.7%
Net Margin
FF
FF
NRGV
NRGV
Q1 26
-148.5%
Q4 25
-60.5%
Q3 25
-41.1%
-80.5%
Q2 25
-29.2%
-410.3%
Q1 25
-100.6%
-247.7%
Q4 24
4.5%
-184.7%
Q3 24
-2.3%
-2217.9%
Q2 24
13.2%
-694.6%
EPS (diluted)
FF
FF
NRGV
NRGV
Q1 26
$-0.20
Q4 25
$-0.28
Q3 25
$-0.21
$-0.16
Q2 25
$-0.24
$-0.22
Q1 25
$-0.40
$-0.14
Q4 24
$0.06
$-0.41
Q3 24
$-0.03
$-0.18
Q2 24
$0.22
$-0.18

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
FF
FF
NRGV
NRGV
Cash + ST InvestmentsLiquidity on hand
$51.3M
$55.2M
Total DebtLower is stronger
$160.6M
Stockholders' EquityBook value
$154.7M
$30.5M
Total Assets
$192.2M
$298.0M
Debt / EquityLower = less leverage
5.27×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FF
FF
NRGV
NRGV
Q1 26
$55.2M
Q4 25
$51.3M
Q3 25
$85.6M
$32.7M
Q2 25
$95.2M
$22.3M
Q1 25
$97.1M
$21.2M
Q4 24
$109.5M
$30.0M
Q3 24
$133.4M
$51.1M
Q2 24
$115.1M
$106.8M
Total Debt
FF
FF
NRGV
NRGV
Q1 26
$160.6M
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Stockholders' Equity
FF
FF
NRGV
NRGV
Q1 26
$30.5M
Q4 25
$154.7M
Q3 25
$169.1M
$80.5M
Q2 25
$178.2M
$90.3M
Q1 25
$188.4M
$114.9M
Q4 24
$205.8M
$126.3M
Q3 24
$213.3M
$179.1M
Q2 24
$214.4M
$195.6M
Total Assets
FF
FF
NRGV
NRGV
Q1 26
$298.0M
Q4 25
$192.2M
Q3 25
$203.5M
$281.9M
Q2 25
$218.2M
$248.8M
Q1 25
$227.7M
$217.4M
Q4 24
$247.7M
$183.9M
Q3 24
$256.5M
$252.9M
Q2 24
$261.2M
$255.6M
Debt / Equity
FF
FF
NRGV
NRGV
Q1 26
5.27×
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
FF
FF
NRGV
NRGV
Operating Cash FlowLast quarter
$-27.4M
$-53.8M
Free Cash FlowOCF − Capex
$-29.9M
FCF MarginFCF / Revenue
-150.5%
Capex IntensityCapex / Revenue
12.2%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-46.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FF
FF
NRGV
NRGV
Q1 26
$-53.8M
Q4 25
$-27.4M
Q3 25
$-1.1M
$-11.7M
Q2 25
$5.2M
$15.4M
Q1 25
$-5.4M
$-2.7M
Q4 24
$-16.6M
$-34.8M
Q3 24
$25.8M
$-9.2M
Q2 24
$27.8M
$-12.8M
Free Cash Flow
FF
FF
NRGV
NRGV
Q1 26
Q4 25
$-29.9M
Q3 25
$-6.5M
$-27.2M
Q2 25
$-263.0K
$6.9M
Q1 25
$-9.4M
$-9.5M
Q4 24
$-20.7M
$-45.4M
Q3 24
$20.5M
$-36.4M
Q2 24
$24.8M
$-25.1M
FCF Margin
FF
FF
NRGV
NRGV
Q1 26
Q4 25
-150.5%
Q3 25
-28.5%
-81.5%
Q2 25
-0.7%
81.6%
Q1 25
-53.6%
-111.5%
Q4 24
-33.6%
-135.5%
Q3 24
40.1%
-3039.9%
Q2 24
34.3%
-665.1%
Capex Intensity
FF
FF
NRGV
NRGV
Q1 26
Q4 25
12.2%
Q3 25
23.5%
46.4%
Q2 25
15.3%
98.8%
Q1 25
22.8%
79.5%
Q4 24
6.6%
31.5%
Q3 24
10.4%
2273.1%
Q2 24
4.1%
325.8%
Cash Conversion
FF
FF
NRGV
NRGV
Q1 26
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
-5.94×
Q3 24
Q2 24
2.90×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

FF
FF

Chemicals$18.0M91%
Biofuels$1.8M9%

NRGV
NRGV

Segment breakdown not available.

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