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Side-by-side financial comparison of AMERISAFE INC (AMSF) and CASTLE BIOSCIENCES INC (CSTL). Click either name above to swap in a different company.

CASTLE BIOSCIENCES INC is the larger business by last-quarter revenue ($87.0M vs $80.1M, roughly 1.1× AMERISAFE INC). On growth, AMERISAFE INC posted the faster year-over-year revenue change (10.3% vs 0.8%). Over the past eight quarters, CASTLE BIOSCIENCES INC's revenue compounded faster (9.2% CAGR vs 2.8%).

AMERISAFE Inc. is a specialty insurance provider that focuses exclusively on workers' compensation coverage for small and mid-sized businesses in high-hazard industries including construction, logging, trucking, and manufacturing. It operates across 49 U.S. states, offering tailored insurance policies paired with targeted risk management support for clients.

Castle Biosciences Inc. is a commercial-stage diagnostic firm that develops and markets proprietary, clinically actionable tests for dermatological conditions such as melanoma and other skin cancers, plus rare diseases. It operates mainly in the U.S. healthcare market, focusing on segments with high unmet need for more accurate diagnostics to guide treatment choices.

AMSF vs CSTL — Head-to-Head

Bigger by revenue
CSTL
CSTL
1.1× larger
CSTL
$87.0M
$80.1M
AMSF
Growing faster (revenue YoY)
AMSF
AMSF
+9.5% gap
AMSF
10.3%
0.8%
CSTL
Faster 2-yr revenue CAGR
CSTL
CSTL
Annualised
CSTL
9.2%
2.8%
AMSF

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
AMSF
AMSF
CSTL
CSTL
Revenue
$80.1M
$87.0M
Net Profit
$8.1M
Gross Margin
79.0%
Operating Margin
-4.4%
Net Margin
10.2%
Revenue YoY
10.3%
0.8%
Net Profit YoY
-9.0%
EPS (diluted)
$0.43
$-0.06

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
AMSF
AMSF
CSTL
CSTL
Q1 26
$80.1M
Q4 25
$81.6M
$87.0M
Q3 25
$82.0M
$83.0M
Q2 25
$81.1M
$86.2M
Q1 25
$72.6M
$88.0M
Q4 24
$74.0M
$86.3M
Q3 24
$78.7M
$85.8M
Q2 24
$75.8M
$87.0M
Net Profit
AMSF
AMSF
CSTL
CSTL
Q1 26
$8.1M
Q4 25
$10.4M
Q3 25
$13.8M
$-501.0K
Q2 25
$14.0M
$4.5M
Q1 25
$8.9M
$-25.8M
Q4 24
$13.2M
Q3 24
$14.3M
$2.3M
Q2 24
$11.0M
$8.9M
Gross Margin
AMSF
AMSF
CSTL
CSTL
Q1 26
Q4 25
79.0%
Q3 25
77.5%
Q2 25
79.5%
Q1 25
81.4%
Q4 24
81.3%
Q3 24
81.8%
Q2 24
83.3%
Operating Margin
AMSF
AMSF
CSTL
CSTL
Q1 26
Q4 25
15.6%
-4.4%
Q3 25
21.3%
-8.2%
Q2 25
21.5%
-4.9%
Q1 25
15.5%
-31.7%
Q4 24
22.7%
4.7%
Q3 24
22.6%
5.9%
Q2 24
18.1%
5.8%
Net Margin
AMSF
AMSF
CSTL
CSTL
Q1 26
10.2%
Q4 25
12.8%
Q3 25
16.9%
-0.6%
Q2 25
17.2%
5.2%
Q1 25
12.3%
-29.4%
Q4 24
17.8%
Q3 24
18.2%
2.6%
Q2 24
14.5%
10.3%
EPS (diluted)
AMSF
AMSF
CSTL
CSTL
Q1 26
$0.43
Q4 25
$0.55
$-0.06
Q3 25
$0.72
$-0.02
Q2 25
$0.73
$0.15
Q1 25
$0.47
$-0.90
Q4 24
$0.69
$0.32
Q3 24
$0.75
$0.08
Q2 24
$0.57
$0.31

Balance Sheet & Financial Strength

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

Metric
AMSF
AMSF
CSTL
CSTL
Cash + ST InvestmentsLiquidity on hand
$34.2M
$299.5M
Total DebtLower is stronger
$10.1M
Stockholders' EquityBook value
$246.6M
$470.9M
Total Assets
$578.6M
Debt / EquityLower = less leverage
0.02×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMSF
AMSF
CSTL
CSTL
Q1 26
$34.2M
Q4 25
$61.9M
$299.5M
Q3 25
$54.7M
$287.5M
Q2 25
$48.5M
$275.9M
Q1 25
$44.8M
$275.2M
Q4 24
$44.1M
$293.1M
Q3 24
$63.7M
$95.0M
Q2 24
$30.6M
$85.6M
Total Debt
AMSF
AMSF
CSTL
CSTL
Q1 26
Q4 25
$10.1M
Q3 25
$10.0M
Q2 25
$10.0M
Q1 25
$10.0M
Q4 24
$10.0M
Q3 24
$10.0M
Q2 24
$10.0M
Stockholders' Equity
AMSF
AMSF
CSTL
CSTL
Q1 26
$246.6M
Q4 25
$251.6M
$470.9M
Q3 25
$274.8M
$467.0M
Q2 25
$265.6M
$455.4M
Q1 25
$260.8M
$440.3M
Q4 24
$257.3M
$455.8M
Q3 24
$314.4M
$441.1M
Q2 24
$301.0M
$423.9M
Total Assets
AMSF
AMSF
CSTL
CSTL
Q1 26
Q4 25
$1.1B
$578.6M
Q3 25
$1.2B
$562.8M
Q2 25
$1.2B
$544.7M
Q1 25
$1.2B
$501.7M
Q4 24
$1.2B
$531.2M
Q3 24
$1.3B
$514.6M
Q2 24
$1.2B
$487.3M
Debt / Equity
AMSF
AMSF
CSTL
CSTL
Q1 26
Q4 25
0.02×
Q3 25
0.02×
Q2 25
0.02×
Q1 25
0.02×
Q4 24
0.02×
Q3 24
0.02×
Q2 24
0.02×

Cash Flow & Capital Efficiency

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

Metric
AMSF
AMSF
CSTL
CSTL
Operating Cash FlowLast quarter
$26.9M
Free Cash FlowOCF − Capex
$19.7M
FCF MarginFCF / Revenue
22.7%
Capex IntensityCapex / Revenue
8.3%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$28.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMSF
AMSF
CSTL
CSTL
Q1 26
Q4 25
$11.1M
$26.9M
Q3 25
$10.7M
$22.6M
Q2 25
$-8.4M
$20.8M
Q1 25
$-1.8M
$-6.0M
Q4 24
$24.2M
$24.4M
Q3 24
$8.4M
$23.3M
Q2 24
$-2.6M
$24.0M
Free Cash Flow
AMSF
AMSF
CSTL
CSTL
Q1 26
Q4 25
$8.9M
$19.7M
Q3 25
$9.8M
$7.8M
Q2 25
$-9.5M
$11.6M
Q1 25
$-1.8M
$-10.8M
Q4 24
$23.4M
$16.8M
Q3 24
$8.4M
$17.0M
Q2 24
$-2.6M
$18.8M
FCF Margin
AMSF
AMSF
CSTL
CSTL
Q1 26
Q4 25
10.9%
22.7%
Q3 25
11.9%
9.4%
Q2 25
-11.7%
13.4%
Q1 25
-2.5%
-12.2%
Q4 24
31.5%
19.5%
Q3 24
10.7%
19.8%
Q2 24
-3.5%
21.6%
Capex Intensity
AMSF
AMSF
CSTL
CSTL
Q1 26
Q4 25
2.6%
8.3%
Q3 25
1.1%
17.9%
Q2 25
1.3%
10.7%
Q1 25
0.0%
5.4%
Q4 24
1.1%
8.8%
Q3 24
0.0%
7.4%
Q2 24
0.1%
6.0%
Cash Conversion
AMSF
AMSF
CSTL
CSTL
Q1 26
Q4 25
1.06×
Q3 25
0.77×
Q2 25
-0.61×
4.60×
Q1 25
-0.20×
Q4 24
1.83×
Q3 24
0.59×
10.29×
Q2 24
-0.24×
2.69×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AMSF
AMSF

Segment breakdown not available.

CSTL
CSTL

Dermatologic$48.6M56%
Non Dermatologic$38.4M44%

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