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Side-by-side financial comparison of ASPEN AEROGELS INC (ASPN) 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 $41.3M, roughly 1.9× ASPEN AEROGELS INC). SunPower Inc. runs the higher net margin — -17.8% vs -176.4%, a 158.6% gap on every dollar of revenue. On growth, SunPower Inc. posted the faster year-over-year revenue change (-10.1% vs -66.4%). Over the past eight quarters, SunPower Inc.'s revenue compounded faster (118.7% CAGR vs -33.9%).

Aspen Aerogels Inc is a leading manufacturer of high-performance aerogel-based insulation and thermal management materials. It serves core sectors including renewable energy, oil and gas infrastructure, aerospace, commercial construction and industrial manufacturing, with key markets across North America, Europe and Asia-Pacific. Its products are prized for superior thermal resistance, fire safety and lightweight performance for harsh operating conditions.

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...

ASPN vs SPWR — Head-to-Head

Bigger by revenue
SPWR
SPWR
1.9× larger
SPWR
$79.7M
$41.3M
ASPN
Growing faster (revenue YoY)
SPWR
SPWR
+56.3% gap
SPWR
-10.1%
-66.4%
ASPN
Higher net margin
SPWR
SPWR
158.6% more per $
SPWR
-17.8%
-176.4%
ASPN
Faster 2-yr revenue CAGR
SPWR
SPWR
Annualised
SPWR
118.7%
-33.9%
ASPN

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ASPN
ASPN
SPWR
SPWR
Revenue
$41.3M
$79.7M
Net Profit
$-72.9M
$-14.2M
Gross Margin
-55.5%
35.5%
Operating Margin
-170.3%
-27.4%
Net Margin
-176.4%
-17.8%
Revenue YoY
-66.4%
-10.1%
Net Profit YoY
-741.7%
-130.1%
EPS (diluted)
$-0.87
$-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
ASPN
ASPN
SPWR
SPWR
Q4 25
$41.3M
$79.7M
Q3 25
$73.0M
$22.0M
Q2 25
$78.0M
$67.5M
Q1 25
$78.7M
$82.7M
Q4 24
$123.1M
$88.7M
Q3 24
$117.3M
Q2 24
$117.8M
Q1 24
$94.5M
Net Profit
ASPN
ASPN
SPWR
SPWR
Q4 25
$-72.9M
$-14.2M
Q3 25
$-6.3M
$-16.9M
Q2 25
$-9.1M
$-22.4M
Q1 25
$-301.2M
$8.1M
Q4 24
$11.4M
$47.0M
Q3 24
$-13.0M
Q2 24
$16.8M
Q1 24
$-1.8M
Gross Margin
ASPN
ASPN
SPWR
SPWR
Q4 25
-55.5%
35.5%
Q3 25
28.5%
Q2 25
32.4%
42.6%
Q1 25
29.0%
48.5%
Q4 24
38.3%
46.5%
Q3 24
41.8%
Q2 24
43.8%
Q1 24
37.2%
Operating Margin
ASPN
ASPN
SPWR
SPWR
Q4 25
-170.3%
-27.4%
Q3 25
-4.6%
-15.7%
Q2 25
-6.6%
-4.0%
Q1 25
-380.2%
1.3%
Q4 24
12.0%
-24.2%
Q3 24
14.8%
Q2 24
17.0%
Q1 24
2.6%
Net Margin
ASPN
ASPN
SPWR
SPWR
Q4 25
-176.4%
-17.8%
Q3 25
-8.7%
-76.9%
Q2 25
-11.6%
-33.2%
Q1 25
-382.7%
9.8%
Q4 24
9.2%
53.0%
Q3 24
-11.1%
Q2 24
14.3%
Q1 24
-1.9%
EPS (diluted)
ASPN
ASPN
SPWR
SPWR
Q4 25
$-0.87
$-0.05
Q3 25
$-0.08
$-0.19
Q2 25
$-0.11
$-0.28
Q1 25
$-3.67
$0.00
Q4 24
$0.15
$0.27
Q3 24
$-0.17
Q2 24
$0.21
Q1 24
$-0.02

Balance Sheet & Financial Strength

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

Metric
ASPN
ASPN
SPWR
SPWR
Cash + ST InvestmentsLiquidity on hand
$156.9M
$9.6M
Total DebtLower is stronger
$65.5M
$164.8M
Stockholders' EquityBook value
$235.5M
$-90.1M
Total Assets
$406.7M
$241.2M
Debt / EquityLower = less leverage
0.28×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ASPN
ASPN
SPWR
SPWR
Q4 25
$156.9M
$9.6M
Q3 25
$150.7M
$5.1M
Q2 25
$167.6M
$11.1M
Q1 25
$192.0M
$10.6M
Q4 24
$220.9M
$13.4M
Q3 24
$113.5M
Q2 24
$91.4M
Q1 24
$101.5M
Total Debt
ASPN
ASPN
SPWR
SPWR
Q4 25
$65.5M
$164.8M
Q3 25
$70.1M
$204.3M
Q2 25
$77.3M
$152.9M
Q1 25
$95.4M
Q4 24
$95.0M
$147.3M
Q3 24
$93.7M
Q2 24
Q1 24
Stockholders' Equity
ASPN
ASPN
SPWR
SPWR
Q4 25
$235.5M
$-90.1M
Q3 25
$305.7M
$-112.3M
Q2 25
$308.8M
$-107.2M
Q1 25
$314.8M
$-89.0M
Q4 24
$614.7M
$-97.5M
Q3 24
$507.6M
Q2 24
$517.8M
Q1 24
$491.2M
Total Assets
ASPN
ASPN
SPWR
SPWR
Q4 25
$406.7M
$241.2M
Q3 25
$491.4M
$208.3M
Q2 25
$525.1M
$163.1M
Q1 25
$555.0M
$147.8M
Q4 24
$895.1M
$144.5M
Q3 24
$782.6M
Q2 24
$748.6M
Q1 24
$698.0M
Debt / Equity
ASPN
ASPN
SPWR
SPWR
Q4 25
0.28×
Q3 25
0.23×
Q2 25
0.25×
Q1 25
0.30×
Q4 24
0.15×
Q3 24
0.18×
Q2 24
Q1 24

Cash Flow & Capital Efficiency

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

Metric
ASPN
ASPN
SPWR
SPWR
Operating Cash FlowLast quarter
$16.1M
$-1.9M
Free Cash FlowOCF − Capex
$13.7M
FCF MarginFCF / Revenue
33.1%
Capex IntensityCapex / Revenue
6.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-4.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ASPN
ASPN
SPWR
SPWR
Q4 25
$16.1M
$-1.9M
Q3 25
$15.0M
$-6.4M
Q2 25
$-3.9M
$-4.4M
Q1 25
$5.6M
$-2.6M
Q4 24
$35.7M
$-25.6M
Q3 24
$20.8M
Q2 24
$6.8M
Q1 24
$-17.7M
Free Cash Flow
ASPN
ASPN
SPWR
SPWR
Q4 25
$13.7M
Q3 25
$5.9M
Q2 25
$-16.8M
Q1 25
$-7.4M
Q4 24
$20.9M
Q3 24
$-50.0K
Q2 24
$-18.0M
Q1 24
$-43.6M
FCF Margin
ASPN
ASPN
SPWR
SPWR
Q4 25
33.1%
Q3 25
8.1%
Q2 25
-21.6%
Q1 25
-9.4%
Q4 24
17.0%
Q3 24
-0.0%
Q2 24
-15.3%
Q1 24
-46.1%
Capex Intensity
ASPN
ASPN
SPWR
SPWR
Q4 25
6.0%
Q3 25
12.5%
Q2 25
16.5%
Q1 25
16.5%
Q4 24
12.0%
Q3 24
17.7%
Q2 24
21.1%
Q1 24
27.4%
Cash Conversion
ASPN
ASPN
SPWR
SPWR
Q4 25
Q3 25
Q2 25
Q1 25
-0.32×
Q4 24
3.14×
-0.54×
Q3 24
Q2 24
0.41×
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

ASPN
ASPN

Energy Industrial$14.5M35%
Other$13.9M34%
Thermal Barrier$12.9M31%

SPWR
SPWR

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

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