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

AMBARELLA INC is the larger business by last-quarter revenue ($108.5M vs $79.7M, roughly 1.4× SunPower Inc.). AMBARELLA INC runs the higher net margin — -13.9% vs -17.8%, a 3.8% gap on every dollar of revenue. On growth, AMBARELLA INC posted the faster year-over-year revenue change (31.2% vs -10.1%). Over the past eight quarters, SunPower Inc.'s revenue compounded faster (118.7% CAGR vs 45.0%).

Ambarella, Inc. is an American fabless semiconductor design company, focusing on low-power, high-definition (HD) and Ultra HD video compression, image processing, and computer vision processors. Ambarella's products are used in a wide variety of human and computer vision applications, including video security, advanced driver assistance systems (ADAS), electronic mirror, drive recorder, driver and in-cabin monitoring, autonomous driving, and robotics applications. Ambarella's system on chips ...

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...

AMBA vs SPWR — Head-to-Head

Bigger by revenue
AMBA
AMBA
1.4× larger
AMBA
$108.5M
$79.7M
SPWR
Growing faster (revenue YoY)
AMBA
AMBA
+41.3% gap
AMBA
31.2%
-10.1%
SPWR
Higher net margin
AMBA
AMBA
3.8% more per $
AMBA
-13.9%
-17.8%
SPWR
Faster 2-yr revenue CAGR
SPWR
SPWR
Annualised
SPWR
118.7%
45.0%
AMBA

Income Statement — Q3 FY2026 vs Q4 FY2025

Metric
AMBA
AMBA
SPWR
SPWR
Revenue
$108.5M
$79.7M
Net Profit
$-15.1M
$-14.2M
Gross Margin
59.6%
35.5%
Operating Margin
-15.0%
-27.4%
Net Margin
-13.9%
-17.8%
Revenue YoY
31.2%
-10.1%
Net Profit YoY
37.2%
-130.1%
EPS (diluted)
$-0.35
$-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
AMBA
AMBA
SPWR
SPWR
Q4 25
$108.5M
$79.7M
Q3 25
$95.5M
$22.0M
Q2 25
$85.9M
$67.5M
Q1 25
$84.0M
$82.7M
Q4 24
$82.7M
$88.7M
Q3 24
$63.7M
Q2 24
$54.5M
Q1 24
$51.6M
Net Profit
AMBA
AMBA
SPWR
SPWR
Q4 25
$-15.1M
$-14.2M
Q3 25
$-20.0M
$-16.9M
Q2 25
$-24.3M
$-22.4M
Q1 25
$-20.2M
$8.1M
Q4 24
$-24.1M
$47.0M
Q3 24
$-34.9M
Q2 24
$-37.9M
Q1 24
$-60.6M
Gross Margin
AMBA
AMBA
SPWR
SPWR
Q4 25
59.6%
35.5%
Q3 25
58.9%
Q2 25
60.0%
42.6%
Q1 25
60.0%
48.5%
Q4 24
60.6%
46.5%
Q3 24
60.8%
Q2 24
60.9%
Q1 24
59.8%
Operating Margin
AMBA
AMBA
SPWR
SPWR
Q4 25
-15.0%
-27.4%
Q3 25
-23.0%
-15.7%
Q2 25
-30.1%
-4.0%
Q1 25
-30.2%
1.3%
Q4 24
-30.9%
-24.2%
Q3 24
-56.9%
Q2 24
-72.4%
Q1 24
-80.8%
Net Margin
AMBA
AMBA
SPWR
SPWR
Q4 25
-13.9%
-17.8%
Q3 25
-20.9%
-76.9%
Q2 25
-28.3%
-33.2%
Q1 25
-24.1%
9.8%
Q4 24
-29.1%
53.0%
Q3 24
-54.8%
Q2 24
-69.6%
Q1 24
-117.4%
EPS (diluted)
AMBA
AMBA
SPWR
SPWR
Q4 25
$-0.35
$-0.05
Q3 25
$-0.47
$-0.19
Q2 25
$-0.58
$-0.28
Q1 25
$-0.48
$0.00
Q4 24
$-0.58
$0.27
Q3 24
$-0.85
Q2 24
$-0.93
Q1 24
$-1.51

Balance Sheet & Financial Strength

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

Metric
AMBA
AMBA
SPWR
SPWR
Cash + ST InvestmentsLiquidity on hand
$174.1M
$9.6M
Total DebtLower is stronger
$164.8M
Stockholders' EquityBook value
$590.1M
$-90.1M
Total Assets
$751.9M
$241.2M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMBA
AMBA
SPWR
SPWR
Q4 25
$174.1M
$9.6M
Q3 25
$142.7M
$5.1M
Q2 25
$141.3M
$11.1M
Q1 25
$144.6M
$10.6M
Q4 24
$127.1M
$13.4M
Q3 24
$153.9M
Q2 24
$131.8M
Q1 24
$144.9M
Total Debt
AMBA
AMBA
SPWR
SPWR
Q4 25
$164.8M
Q3 25
$204.3M
Q2 25
$152.9M
Q1 25
Q4 24
$147.3M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
AMBA
AMBA
SPWR
SPWR
Q4 25
$590.1M
$-90.1M
Q3 25
$576.5M
$-112.3M
Q2 25
$572.7M
$-107.2M
Q1 25
$561.4M
$-89.0M
Q4 24
$554.3M
$-97.5M
Q3 24
$547.6M
Q2 24
$555.4M
Q1 24
$559.9M
Total Assets
AMBA
AMBA
SPWR
SPWR
Q4 25
$751.9M
$241.2M
Q3 25
$706.4M
$208.3M
Q2 25
$701.9M
$163.1M
Q1 25
$689.0M
$147.8M
Q4 24
$670.8M
$144.5M
Q3 24
$650.3M
Q2 24
$638.7M
Q1 24
$657.7M

Cash Flow & Capital Efficiency

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

Metric
AMBA
AMBA
SPWR
SPWR
Operating Cash FlowLast quarter
$34.3M
$-1.9M
Free Cash FlowOCF − Capex
$31.4M
FCF MarginFCF / Revenue
29.0%
Capex IntensityCapex / Revenue
2.7%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$64.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMBA
AMBA
SPWR
SPWR
Q4 25
$34.3M
$-1.9M
Q3 25
$5.5M
$-6.4M
Q2 25
$14.8M
$-4.4M
Q1 25
$25.4M
$-2.6M
Q4 24
$6.6M
$-25.6M
Q3 24
$16.7M
Q2 24
$-15.0M
Q1 24
$-4.0M
Free Cash Flow
AMBA
AMBA
SPWR
SPWR
Q4 25
$31.4M
Q3 25
$1.4M
Q2 25
$10.2M
Q1 25
$21.2M
Q4 24
$4.1M
Q3 24
$14.2M
Q2 24
$-16.1M
Q1 24
$-6.0M
FCF Margin
AMBA
AMBA
SPWR
SPWR
Q4 25
29.0%
Q3 25
1.4%
Q2 25
11.9%
Q1 25
25.3%
Q4 24
5.0%
Q3 24
22.2%
Q2 24
-29.5%
Q1 24
-11.6%
Capex Intensity
AMBA
AMBA
SPWR
SPWR
Q4 25
2.7%
Q3 25
4.3%
Q2 25
5.3%
Q1 25
5.0%
Q4 24
3.0%
Q3 24
4.0%
Q2 24
2.1%
Q1 24
3.7%
Cash Conversion
AMBA
AMBA
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

AMBA
AMBA

TW$76.0M70%
Asia Pacific Other Than Taiwan$20.2M19%
North America Other Than United States$7.4M7%
Other$5.0M5%

SPWR
SPWR

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

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