Castle Biosciences CSTL
NASDAQ CSTL
$35.35 +0.36 (+1.03%)
As of: Sep 22, 2026 · 10:04 AM EDT

Castle Biosciences (CSTL) Operating Expenses (2018 - 2026)

Castle Biosciences' (CSTL) quarterly Operating Expenses came in at $106.6 million in Q2 2026, up 17.89% year-over-year from $90.4 million in Q2 2025, and up 4.44% quarter-over-quarter from $102.1 million in Q1 2026.

Analysis

Castle Biosciences (CSTL) Operating Expenses (2018 - 2026) Analysis & Trends

Castle Biosciences has disclosed Operating Expenses across 9 years of filings, most recently posting $106.6 million for Q2 2026.

  • In Q2 2026, Operating Expenses rose 17.89% year-over-year to $106.6 million; the TTM figure through Jun 2026 stood at $389.4 million (up 5.43% YoY), while the FY2025 annual figure was $387.0 million, up 19.68% from the prior year.
  • Operating Expenses came in at $106.6 million for Q2 2026 at Castle Biosciences, up from $102.1 million in the prior quarter.
  • In the past five years, Operating Expenses ranged from a high of $115.9 million in Q1 2025 to a low of $38.8 million in Q2 2022.
  • Average Operating Expenses over 5 years is $78.7 million, with a median of $79.6 million recorded in 2024.
  • Year-over-year, Operating Expenses jumped 89.57% in 2022 and slipped 11.93% in 2026.
  • Over 5 years, Operating Expenses stood at $61.2 million in 2022, then advanced by 17.34% to $71.8 million in 2023, then climbed by 14.6% to $82.3 million in 2024, then advanced by 10.43% to $90.8 million in 2025, then gained by 17.37% to $106.6 million in 2026.
  • Per Business Quant data, the three most recent Operating Expenses figures were $106.6 million in Q2 2026, $102.1 million in Q1 2026, and $90.8 million in Q4 2025.
Peer Set

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Opex (Qtr)
1 Natera 53.05 Bn 51.95 Bn 486.15 Mn 828.54 Mn
2 Quest Diagnostics 27.19 Bn 26.87 Bn 1.03 Bn 2.58 Bn
3 Labcorp Holdings 25.93 Bn 25.81 Bn 1.11 Bn 582.30 Mn
4 Guardant Health 23.97 Bn 22.91 Bn 219.03 Mn 464.10 Mn
5 Tempus AI 13.64 Bn 12.82 Bn 274.25 Mn 458.40 Mn
6 Caris Life Sciences 8.47 Bn 7.68 Bn 182.38 Mn 236.79 Mn
7 Sotera Health 5.35 Bn 4.99 Bn 177.96 Mn 68.16 Mn
8 BillionToOne 4.96 Bn 4.41 Bn 77.11 Mn 71.60 Mn
9 Adaptive Biotechnologies 4.55 Bn 4.21 Bn 51.39 Mn 87.32 Mn
10 Castle Biosciences 1.08 Bn 811.36 Mn 79.85 Mn 106.62 Mn
Historic Data

Historic Data

Download Data
DateValue
Jun 30, 2026 106.62 Mn
Mar 31, 2026 102.09 Mn
Dec 31, 2025 90.84 Mn
Sep 30, 2025 89.85 Mn
Jun 30, 2025 90.44 Mn
Mar 31, 2025 115.92 Mn
Dec 31, 2024 82.26 Mn
Sep 30, 2024 80.70 Mn
Jun 30, 2024 81.99 Mn
Mar 31, 2024 78.45 Mn
Dec 31, 2023 71.78 Mn
Sep 30, 2023 71.13 Mn
Jun 30, 2023 71.30 Mn
Mar 31, 2023 73.56 Mn
Dec 31, 2022 61.17 Mn
Sep 30, 2022 58.55 Mn
Jun 30, 2022 38.81 Mn
Mar 31, 2022 51.37 Mn
Dec 31, 2021 40.21 Mn
Sep 30, 2021 35.29 Mn
API Access

Castle Biosciences Operating Expenses API

Pull this series into your own models, spreadsheets and apps with the Business Quant Historical Metrics API. The request below matches the chart above — change the frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.

https://data.businessquant.com/historic?slug=operating-expenses&ticker=CSTL&period=max&api_key=YOUR_API_KEY