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Side-by-side financial comparison of AEMETIS, INC (AMTX) and SunPower Inc. (SPWR). Click either name above to swap in a different company.

SunPower Inc. is the larger business by last-quarter revenue ($79.7M vs $43.3M, roughly 1.8× AEMETIS, INC). On growth, AEMETIS, INC posted the faster year-over-year revenue change (-7.9% vs -10.1%). Over the past eight quarters, SunPower Inc.'s revenue compounded faster (118.7% CAGR vs -22.8%).

Aemetis, Inc. is a renewable fuels and sustainable biochemicals producer operating across North America and India. Its core products include low-carbon ethanol, renewable natural gas and biodiesel, serving transportation, industrial and agricultural sectors with decarbonization solutions for commercial clients.

SunPower Corporation is an American provider of photovoltaic solar energy generation systems and battery energy storage products, primarily for residential customers. The company, headquartered in San Jose, California, was founded in 1985 by Richard Swanson, an electrical engineering professor from Stanford University. Cypress Semiconductor bought a majority interest in the company in 2002, growing it quickly until SunPower went public in 2005. TotalEnergies, a French energy and oil company p...

AMTX vs SPWR — Head-to-Head

Bigger by revenue
SPWR
SPWR
1.8× larger
SPWR
$79.7M
$43.3M
AMTX
Growing faster (revenue YoY)
AMTX
AMTX
+2.2% gap
AMTX
-7.9%
-10.1%
SPWR
Faster 2-yr revenue CAGR
SPWR
SPWR
Annualised
SPWR
118.7%
-22.8%
AMTX

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AMTX
AMTX
SPWR
SPWR
Revenue
$43.3M
$79.7M
Net Profit
$-14.2M
Gross Margin
17.8%
35.5%
Operating Margin
-5.7%
-27.4%
Net Margin
-17.8%
Revenue YoY
-7.9%
-10.1%
Net Profit YoY
-130.1%
EPS (diluted)
$-0.03
$-0.05

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
AMTX
AMTX
SPWR
SPWR
Q4 25
$43.3M
$79.7M
Q3 25
$59.2M
$22.0M
Q2 25
$52.2M
$67.5M
Q1 25
$42.9M
$82.7M
Q4 24
$47.0M
$88.7M
Q3 24
$81.4M
Q2 24
$66.6M
Q1 24
$72.6M
Net Profit
AMTX
AMTX
SPWR
SPWR
Q4 25
$-14.2M
Q3 25
$-23.7M
$-16.9M
Q2 25
$-23.4M
$-22.4M
Q1 25
$-24.5M
$8.1M
Q4 24
$47.0M
Q3 24
$-17.9M
Q2 24
$-29.2M
Q1 24
$-24.2M
Gross Margin
AMTX
AMTX
SPWR
SPWR
Q4 25
17.8%
35.5%
Q3 25
-0.1%
Q2 25
-6.4%
42.6%
Q1 25
-11.8%
48.5%
Q4 24
-4.3%
46.5%
Q3 24
4.8%
Q2 24
-2.7%
Q1 24
-0.8%
Operating Margin
AMTX
AMTX
SPWR
SPWR
Q4 25
-5.7%
-27.4%
Q3 25
-14.4%
-15.7%
Q2 25
-20.4%
-4.0%
Q1 25
-36.3%
1.3%
Q4 24
-28.7%
-24.2%
Q3 24
-4.8%
Q2 24
-20.4%
Q1 24
-13.0%
Net Margin
AMTX
AMTX
SPWR
SPWR
Q4 25
-17.8%
Q3 25
-40.1%
-76.9%
Q2 25
-44.8%
-33.2%
Q1 25
-57.2%
9.8%
Q4 24
53.0%
Q3 24
-22.0%
Q2 24
-43.8%
Q1 24
-33.4%
EPS (diluted)
AMTX
AMTX
SPWR
SPWR
Q4 25
$-0.03
$-0.05
Q3 25
$-0.37
$-0.19
Q2 25
$-0.41
$-0.28
Q1 25
$-0.47
$0.00
Q4 24
$-0.29
$0.27
Q3 24
$-0.38
Q2 24
$-0.66
Q1 24
$-0.58

Balance Sheet & Financial Strength

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

Metric
AMTX
AMTX
SPWR
SPWR
Cash + ST InvestmentsLiquidity on hand
$4.9M
$9.6M
Total DebtLower is stronger
$164.8M
Stockholders' EquityBook value
$-306.8M
$-90.1M
Total Assets
$259.8M
$241.2M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMTX
AMTX
SPWR
SPWR
Q4 25
$4.9M
$9.6M
Q3 25
$5.6M
$5.1M
Q2 25
$1.6M
$11.1M
Q1 25
$499.0K
$10.6M
Q4 24
$898.0K
$13.4M
Q3 24
$296.0K
Q2 24
$234.0K
Q1 24
$1.6M
Total Debt
AMTX
AMTX
SPWR
SPWR
Q4 25
$164.8M
Q3 25
$204.3M
Q2 25
$152.9M
Q1 25
Q4 24
$338.1M
$147.3M
Q3 24
$322.2M
Q2 24
$309.0M
Q1 24
$307.2M
Stockholders' Equity
AMTX
AMTX
SPWR
SPWR
Q4 25
$-306.8M
$-90.1M
Q3 25
$-304.9M
$-112.3M
Q2 25
$-289.3M
$-107.2M
Q1 25
$-280.7M
$-89.0M
Q4 24
$-263.9M
$-97.5M
Q3 24
$-258.9M
Q2 24
$-249.0M
Q1 24
$-232.1M
Total Assets
AMTX
AMTX
SPWR
SPWR
Q4 25
$259.8M
$241.2M
Q3 25
$241.1M
$208.3M
Q2 25
$240.0M
$163.1M
Q1 25
$242.5M
$147.8M
Q4 24
$259.3M
$144.5M
Q3 24
$259.3M
Q2 24
$259.3M
Q1 24
$259.3M

Cash Flow & Capital Efficiency

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

Metric
AMTX
AMTX
SPWR
SPWR
Operating Cash FlowLast quarter
$5.8M
$-1.9M
Free Cash FlowOCF − Capex
$-10.8M
FCF MarginFCF / Revenue
-24.9%
Capex IntensityCapex / Revenue
38.2%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-22.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMTX
AMTX
SPWR
SPWR
Q4 25
$5.8M
$-1.9M
Q3 25
$3.1M
$-6.4M
Q2 25
$-5.7M
$-4.4M
Q1 25
$160.0K
$-2.6M
Q4 24
$-12.6M
$-25.6M
Q3 24
$-5.0M
Q2 24
$-5.1M
Q1 24
$-10.3M
Free Cash Flow
AMTX
AMTX
SPWR
SPWR
Q4 25
$-10.8M
Q3 25
$-1.0M
Q2 25
$-9.3M
Q1 25
$-1.7M
Q4 24
$-19.4M
Q3 24
$-9.5M
Q2 24
$-10.5M
Q1 24
$-13.9M
FCF Margin
AMTX
AMTX
SPWR
SPWR
Q4 25
-24.9%
Q3 25
-1.7%
Q2 25
-17.7%
Q1 25
-3.9%
Q4 24
-41.2%
Q3 24
-11.6%
Q2 24
-15.8%
Q1 24
-19.1%
Capex Intensity
AMTX
AMTX
SPWR
SPWR
Q4 25
38.2%
Q3 25
6.9%
Q2 25
6.7%
Q1 25
4.3%
Q4 24
14.4%
Q3 24
5.5%
Q2 24
8.1%
Q1 24
4.9%
Cash Conversion
AMTX
AMTX
SPWR
SPWR
Q4 25
Q3 25
Q2 25
Q1 25
-0.32×
Q4 24
-0.54×
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

AMTX
AMTX

Ethanol Sales$28.8M66%
Wet Distillers Grains$6.8M16%
California Dairy Renewable Natural Gas$5.2M12%
Other$1.8M4%

SPWR
SPWR

Residential Solar Installation$46.9M59%
New Homes Business$22.7M29%
Other$10.1M13%

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