Castle Biosciences Inc (CSTL) Gross Profit Margin starting from the third quarter 2026 to third quarter 2025, Profitability Trends and Ranking, Fundamental Ratios - CSIMarket
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• Gross Margin
• EBITDA Margin
• Operating Margin
• Net Margin
• Pre-Tax Margin
• Effective Tax Rate
• Free Cash Flow Margin
• Cash Flow Margin
Castle Biosciences Inc   (NASDAQ: CSTL)
    Sector • Healthcare    Industry • Medical Laboratories
   Industry • Medical Laboratories
   Sector • Healthcare


Castle Biosciences Inc 's Gross Profit Margin by quarter

Trends, Rankings, Statistics


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CSTL Gross Profit Margin (Sep 30 2026)
Q3 		(Jun 30 2026)
Q2 		(Mar 31 2026)
Q1 		(Dec 31 2025)
Q4 		(Sep 30 2025)
Q3
Y / Y Revenue Change 23.9 %
Seq. Revenue Change -0.63 %
Revenue In Millions $102.89
Gross Profit Margin 76.75 %
Gross Profit Margin Total Ranking # 817
Gross Profit In Millions $78.97
Y / Y Gross Profit Change 22.74 %
Seq. Gross Profit Change -1.09 %


Commenting Third Quarter 2026 Gross Profit Margin
Castle Biosciences Inc experienced contraction in Gross Profit by -1.09 % to $103 millions and Revenue by -0.63 %, while Gross Profit Margin fell to 76.75 %, below company*s average Gross Profit Margin.


Observing third quarter 2026 results within Medical Laboratories industry 6 other companies have achieved higher Gross Profit Margin. While Gross Profit Margin overall ranking has deteriorated relative to the three months before, from 737 to 817.
Learn about Gross Margin
CSTL's Gross Profit Margin third quarter 2026 Company Ranking
Within: No.
Medical Laboratories Industry # 7
Healthcare Sector # 144
Overall # 810

Gross Profit Margin Statistics
High Average Low
88.6 % 79.89 % 63.6 %
(Dec 31 2019)   (Sep 30 2018)


CSTL Gross Income Trends • More of CSTL's Profitabilty Ratios • CSTL Stock Quotes and Charts


Other Gross Profit Margin Profitability Ratios
CSTL's Cumulative Gross Profit Margin
Medical Laboratories Industry Gross Profit Margin Trends and Statistics
Healthcare Sector Gross Profit Margin Statistics
Gross Profit Margin Profitability Trends for overall market
CSTL's Gross Profit Margin Profitability versus Medical Laboratories Industry, Healthcare Sector and total Market
Highest Ranking Gross Profit Margin
Lowest Ranking Gross Profit Margin
Gross Profit Margin Profit Margin for CSTL's Competitors
Gross Profit Margin Profit Margin for Castle Biosciences Inc 's Suppliers
Gross Profit Margin Profit Margin for CSTL's Customers

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CSTL's Annual Growth Rates CSTL's Profitability Ratios CSTL's Asset Turnover Ratio CSTL's Dividend Growth
CSTL's Roe CSTL's Valuation Ratios CSTL's Financial Strength Ratios CSTL's Gross Profit Growth
CSTL's Roa CSTL's Inventory Turnover Ratio CSTL's Growth Rates CSTL's Dividend Comparisons


Companies with similar Gross Profit Margin in the quarter ending Sep 30 2026, within Medical Laboratories Industry Gross Profit MarginSep 30 2026 MRQ Gross ProfitSep 30 2026 MRQ Revenue
Veracyte Inc   97.85 %$ 148.489  Millions$ 151.754  Millions
Miragen Therapeutics Inc   94.07 %$ 24.225  Millions$ 25.752  Millions
Incyte Corporation  93.02 %$ 1,448.460  Millions$ 1,557.204  Millions
Omniab Inc   84.52 %$ 3.375  Millions$ 3.993  Millions
Maxcyte inc   83.41 %$ 8.468  Millions$ 10.152  Millions
Castle Biosciences Inc   76.75 %$ 78.972  Millions$ 102.891  Millions
Butterfly Network Inc   73.02 %$ 23.802  Millions$ 32.598  Millions
Billiontoone Inc   70.86 %$ 87.145  Millions$ 122.981  Millions
Guardant Health Inc   65.42 %$ 236.153  Millions$ 360.975  Millions
Nrc Health  59.95 %$ 23.021  Millions$ 38.399  Millions
Exagen Inc   58.84 %$ 10.836  Millions$ 18.417  Millions
Caredx Inc   44.61 %$ 62.174  Millions$ 139.362  Millions
Aclarion Inc   43.86 %$ 0.015  Millions$ 0.034  Millions
Ge Healthcare Technologies Inc   40.34 %$ 2,224.000  Millions$ 5,513.000  Millions
Fulgent Genetics Inc   35.33 %$ 31.947  Millions$ 90.412  Millions
Iqvia Holdings Inc   33.83 %$ 1,498.000  Millions$ 4,428.000  Millions
Quest Diagnostics Inc  33.65 %$ 1,042.000  Millions$ 3,097.000  Millions
Medpace Holdings Inc   31.27 %$ 223.885  Millions$ 716.000  Millions
Labcorp Holdings Inc   29.08 %$ 1,108.100  Millions$ 3,810.000  Millions
Personalis Inc   25.67 %$ 6.570  Millions$ 25.596  Millions
Fortrea Holdings Inc   20.17 %$ 139.500  Millions$ 691.500  Millions




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