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Side-by-side financial comparison of American Integrity Insurance Group, Inc. (AII) 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 $68.1M, roughly 1.3× American Integrity Insurance Group, Inc.). American Integrity Insurance Group, Inc. produced more free cash flow last quarter ($133.2M vs $19.7M).

American International Group, Inc. (AIG) is an American multinational finance and insurance corporation with operations in more than 80 countries and jurisdictions. As of 2023, AIG employed 25,200 people. The company operates through three core businesses: general insurance, life & retirement, and a standalone technology-enabled subsidiary. General Insurance includes Commercial, Personal Insurance, U.S. and International field operations. Life & Retirement includes Group Retirement, Individua...

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.

AII vs CSTL — Head-to-Head

Bigger by revenue
CSTL
CSTL
1.3× larger
CSTL
$87.0M
$68.1M
AII
More free cash flow
AII
AII
$113.4M more FCF
AII
$133.2M
$19.7M
CSTL

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AII
AII
CSTL
CSTL
Revenue
$68.1M
$87.0M
Net Profit
$20.9M
Gross Margin
79.0%
Operating Margin
43.0%
-4.4%
Net Margin
30.7%
Revenue YoY
0.8%
Net Profit YoY
EPS (diluted)
$0.58
$-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
AII
AII
CSTL
CSTL
Q4 25
$68.1M
$87.0M
Q3 25
$62.0M
$83.0M
Q2 25
$74.5M
$86.2M
Q1 25
$71.9M
$88.0M
Q4 24
$86.3M
Q3 24
$85.8M
Q2 24
$87.0M
Q1 24
$73.0M
Net Profit
AII
AII
CSTL
CSTL
Q4 25
$20.9M
Q3 25
$13.2M
$-501.0K
Q2 25
$27.5M
$4.5M
Q1 25
$38.1M
$-25.8M
Q4 24
Q3 24
$2.3M
Q2 24
$8.9M
Q1 24
$-2.5M
Gross Margin
AII
AII
CSTL
CSTL
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%
Q1 24
81.0%
Operating Margin
AII
AII
CSTL
CSTL
Q4 25
43.0%
-4.4%
Q3 25
30.3%
-8.2%
Q2 25
32.3%
-4.9%
Q1 25
59.7%
-31.7%
Q4 24
4.7%
Q3 24
5.9%
Q2 24
5.8%
Q1 24
-7.5%
Net Margin
AII
AII
CSTL
CSTL
Q4 25
30.7%
Q3 25
21.2%
-0.6%
Q2 25
36.9%
5.2%
Q1 25
53.0%
-29.4%
Q4 24
Q3 24
2.6%
Q2 24
10.3%
Q1 24
-3.5%
EPS (diluted)
AII
AII
CSTL
CSTL
Q4 25
$0.58
$-0.06
Q3 25
$0.67
$-0.02
Q2 25
$1.62
$0.15
Q1 25
$2.78
$-0.90
Q4 24
$0.32
Q3 24
$0.08
Q2 24
$0.31
Q1 24
$-0.09

Balance Sheet & Financial Strength

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

Metric
AII
AII
CSTL
CSTL
Cash + ST InvestmentsLiquidity on hand
$222.0M
$299.5M
Total DebtLower is stronger
$618.0K
$10.1M
Stockholders' EquityBook value
$337.0M
$470.9M
Total Assets
$1.2B
$578.6M
Debt / EquityLower = less leverage
0.00×
0.02×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AII
AII
CSTL
CSTL
Q4 25
$222.0M
$299.5M
Q3 25
$171.9M
$287.5M
Q2 25
$259.6M
$275.9M
Q1 25
$236.4M
$275.2M
Q4 24
$293.1M
Q3 24
$95.0M
Q2 24
$85.6M
Q1 24
$82.9M
Total Debt
AII
AII
CSTL
CSTL
Q4 25
$618.0K
$10.1M
Q3 25
$721.0K
$10.0M
Q2 25
$824.0K
$10.0M
Q1 25
$926.0K
$10.0M
Q4 24
$10.0M
Q3 24
$10.0M
Q2 24
$10.0M
Q1 24
$10.0M
Stockholders' Equity
AII
AII
CSTL
CSTL
Q4 25
$337.0M
$470.9M
Q3 25
$315.9M
$467.0M
Q2 25
$301.9M
$455.4M
Q1 25
$186.1M
$440.3M
Q4 24
$455.8M
Q3 24
$441.1M
Q2 24
$423.9M
Q1 24
$402.5M
Total Assets
AII
AII
CSTL
CSTL
Q4 25
$1.2B
$578.6M
Q3 25
$1.4B
$562.8M
Q2 25
$1.6B
$544.7M
Q1 25
$1.1B
$501.7M
Q4 24
$531.2M
Q3 24
$514.6M
Q2 24
$487.3M
Q1 24
$458.5M
Debt / Equity
AII
AII
CSTL
CSTL
Q4 25
0.00×
0.02×
Q3 25
0.00×
0.02×
Q2 25
0.00×
0.02×
Q1 25
0.00×
0.02×
Q4 24
0.02×
Q3 24
0.02×
Q2 24
0.02×
Q1 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
AII
AII
CSTL
CSTL
Operating Cash FlowLast quarter
$138.2M
$26.9M
Free Cash FlowOCF − Capex
$133.2M
$19.7M
FCF MarginFCF / Revenue
195.6%
22.7%
Capex IntensityCapex / Revenue
7.4%
8.3%
Cash ConversionOCF / Net Profit
6.62×
TTM Free Cash FlowTrailing 4 quarters
$216.1M
$28.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AII
AII
CSTL
CSTL
Q4 25
$138.2M
$26.9M
Q3 25
$-7.5M
$22.6M
Q2 25
$27.4M
$20.8M
Q1 25
$68.1M
$-6.0M
Q4 24
$24.4M
Q3 24
$23.3M
Q2 24
$24.0M
Q1 24
$-6.8M
Free Cash Flow
AII
AII
CSTL
CSTL
Q4 25
$133.2M
$19.7M
Q3 25
$-11.9M
$7.8M
Q2 25
$26.9M
$11.6M
Q1 25
$68.0M
$-10.8M
Q4 24
$16.8M
Q3 24
$17.0M
Q2 24
$18.8M
Q1 24
$-16.0M
FCF Margin
AII
AII
CSTL
CSTL
Q4 25
195.6%
22.7%
Q3 25
-19.2%
9.4%
Q2 25
36.1%
13.4%
Q1 25
94.6%
-12.2%
Q4 24
19.5%
Q3 24
19.8%
Q2 24
21.6%
Q1 24
-21.9%
Capex Intensity
AII
AII
CSTL
CSTL
Q4 25
7.4%
8.3%
Q3 25
7.2%
17.9%
Q2 25
0.6%
10.7%
Q1 25
0.2%
5.4%
Q4 24
8.8%
Q3 24
7.4%
Q2 24
6.0%
Q1 24
12.5%
Cash Conversion
AII
AII
CSTL
CSTL
Q4 25
6.62×
Q3 25
-0.57×
Q2 25
1.00×
4.60×
Q1 25
1.79×
Q4 24
Q3 24
10.29×
Q2 24
2.69×
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

AII
AII

Segment breakdown not available.

CSTL
CSTL

Dermatologic$48.6M56%
Non Dermatologic$38.4M44%

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