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Side-by-side financial comparison of Amprius Technologies, Inc. (AMPX) and FIVE STAR BANCORP (FSBC). Click either name above to swap in a different company.

FIVE STAR BANCORP is the larger business by last-quarter revenue ($45.1M vs $25.2M, roughly 1.8× Amprius Technologies, Inc.). FIVE STAR BANCORP runs the higher net margin — 41.3% vs -96.7%, a 137.9% gap on every dollar of revenue. Over the past eight quarters, Amprius Technologies, Inc.'s revenue compounded faster (228.7% CAGR vs 21.3%).

Amprius Technologies, Inc. develops and manufactures high-energy density lithium-ion batteries using proprietary silicon anode technology. It serves aerospace, defense, electric mobility, and portable electronics segments, offering products with longer runtime and faster charging than conventional alternatives.

U.S. Bancorp is an American multinational banking institution headquartered in Minneapolis, Minnesota and incorporated in Delaware. It is the 5th-largest bank in the United States as of 2025. As the largest bank in the Midwestern United States, it is considered systemically important by the Financial Stability Board. It is the parent company of its primary operating entity, U.S. Bank National Association, which does business as U.S. Bank. The company provides banking, investment, mortgage, tr...

AMPX vs FSBC — Head-to-Head

Bigger by revenue
FSBC
FSBC
1.8× larger
FSBC
$45.1M
$25.2M
AMPX
Higher net margin
FSBC
FSBC
137.9% more per $
FSBC
41.3%
-96.7%
AMPX
Faster 2-yr revenue CAGR
AMPX
AMPX
Annualised
AMPX
228.7%
21.3%
FSBC

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AMPX
AMPX
FSBC
FSBC
Revenue
$25.2M
$45.1M
Net Profit
$-24.4M
$18.6M
Gross Margin
23.6%
Operating Margin
-100.9%
Net Margin
-96.7%
41.3%
Revenue YoY
137.4%
Net Profit YoY
-113.6%
42.0%
EPS (diluted)
$-0.19
$0.87

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
AMPX
AMPX
FSBC
FSBC
Q1 26
$45.1M
Q4 25
$25.2M
$43.5M
Q3 25
$21.4M
$41.3M
Q2 25
$15.1M
$38.3M
Q1 25
$11.3M
$35.3M
Q4 24
$10.6M
$35.2M
Q3 24
$7.9M
$31.8M
Q2 24
$3.3M
$30.7M
Net Profit
AMPX
AMPX
FSBC
FSBC
Q1 26
$18.6M
Q4 25
$-24.4M
$17.6M
Q3 25
$-3.9M
$16.3M
Q2 25
$-6.4M
$14.5M
Q1 25
$-9.4M
$13.1M
Q4 24
$-11.4M
$13.3M
Q3 24
$-10.8M
$10.9M
Q2 24
$-12.5M
$10.8M
Gross Margin
AMPX
AMPX
FSBC
FSBC
Q1 26
Q4 25
23.6%
Q3 25
15.5%
Q2 25
8.9%
Q1 25
-20.9%
Q4 24
-21.2%
Q3 24
-64.9%
Q2 24
-195.2%
Operating Margin
AMPX
AMPX
FSBC
FSBC
Q1 26
Q4 25
-100.9%
52.9%
Q3 25
-21.9%
53.8%
Q2 25
-45.2%
52.4%
Q1 25
-85.7%
52.0%
Q4 24
-110.6%
55.1%
Q3 24
-143.3%
48.0%
Q2 24
-386.6%
49.4%
Net Margin
AMPX
AMPX
FSBC
FSBC
Q1 26
41.3%
Q4 25
-96.7%
40.6%
Q3 25
-18.2%
39.6%
Q2 25
-42.3%
37.9%
Q1 25
-83.0%
37.1%
Q4 24
-107.4%
37.9%
Q3 24
-138.1%
34.4%
Q2 24
-374.2%
35.2%
EPS (diluted)
AMPX
AMPX
FSBC
FSBC
Q1 26
$0.87
Q4 25
$-0.19
$0.83
Q3 25
$-0.03
$0.77
Q2 25
$-0.05
$0.68
Q1 25
$-0.08
$0.62
Q4 24
$-0.11
$0.61
Q3 24
$-0.10
$0.52
Q2 24
$-0.13
$0.51

Balance Sheet & Financial Strength

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

Metric
AMPX
AMPX
FSBC
FSBC
Cash + ST InvestmentsLiquidity on hand
$90.5M
$644.4M
Total DebtLower is stronger
Stockholders' EquityBook value
$103.8M
$458.5M
Total Assets
$156.9M
$5.0B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPX
AMPX
FSBC
FSBC
Q1 26
$644.4M
Q4 25
$90.5M
Q3 25
$73.2M
Q2 25
$54.2M
Q1 25
$48.4M
Q4 24
$55.2M
Q3 24
$35.0M
Q2 24
$46.4M
Stockholders' Equity
AMPX
AMPX
FSBC
FSBC
Q1 26
$458.5M
Q4 25
$103.8M
$445.8M
Q3 25
$103.2M
$431.3M
Q2 25
$76.7M
$416.7M
Q1 25
$70.4M
$406.5M
Q4 24
$69.5M
$396.6M
Q3 24
$56.0M
$389.9M
Q2 24
$65.1M
$380.5M
Total Assets
AMPX
AMPX
FSBC
FSBC
Q1 26
$5.0B
Q4 25
$156.9M
$4.8B
Q3 25
$156.5M
$4.6B
Q2 25
$123.0M
$4.4B
Q1 25
$118.5M
$4.2B
Q4 24
$121.1M
$4.1B
Q3 24
$104.2M
$3.9B
Q2 24
$112.8M
$3.6B

Cash Flow & Capital Efficiency

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

Metric
AMPX
AMPX
FSBC
FSBC
Operating Cash FlowLast quarter
$-3.5M
Free Cash FlowOCF − Capex
$-5.9M
FCF MarginFCF / Revenue
-23.2%
Capex IntensityCapex / Revenue
9.3%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-35.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMPX
AMPX
FSBC
FSBC
Q1 26
Q4 25
$-3.5M
$72.6M
Q3 25
$-9.2M
$18.8M
Q2 25
$-4.3M
$17.8M
Q1 25
$-14.1M
$15.5M
Q4 24
$-6.1M
$51.8M
Q3 24
$-9.5M
$17.5M
Q2 24
$-8.0M
$16.0M
Free Cash Flow
AMPX
AMPX
FSBC
FSBC
Q1 26
Q4 25
$-5.9M
$71.4M
Q3 25
$-9.7M
$18.6M
Q2 25
$-5.0M
$17.5M
Q1 25
$-15.0M
$15.4M
Q4 24
$-9.7M
$51.2M
Q3 24
$-10.9M
$17.3M
Q2 24
$-9.6M
$15.8M
FCF Margin
AMPX
AMPX
FSBC
FSBC
Q1 26
Q4 25
-23.2%
164.3%
Q3 25
-45.1%
45.0%
Q2 25
-33.1%
45.8%
Q1 25
-133.3%
43.5%
Q4 24
-91.4%
145.5%
Q3 24
-138.3%
54.5%
Q2 24
-285.9%
51.6%
Capex Intensity
AMPX
AMPX
FSBC
FSBC
Q1 26
Q4 25
9.3%
2.8%
Q3 25
1.9%
0.5%
Q2 25
4.8%
0.6%
Q1 25
8.1%
0.3%
Q4 24
34.1%
1.8%
Q3 24
17.0%
0.7%
Q2 24
48.0%
0.7%
Cash Conversion
AMPX
AMPX
FSBC
FSBC
Q1 26
Q4 25
4.12×
Q3 25
1.15×
Q2 25
1.23×
Q1 25
1.18×
Q4 24
3.89×
Q3 24
1.60×
Q2 24
1.49×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AMPX
AMPX

Segment breakdown not available.

FSBC
FSBC

Net Interest Income$43.5M96%
Noninterest Income$1.6M4%

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