Castle Biosciences CSTL
NASDAQ CSTL
$34.24 +0.15 (+0.45%)
As of: Aug 27, 2026 · 3:59 PM EDT

Castle Biosciences (CSTL) Profit After Tax (2018 - 2026)

Castle Biosciences (CSTL) posted Profit After Tax of -$2.1 million for Q2 2026, up 85.81% sequentially from -$14.5 million in Q1 2026, and down 145.54% YoY from $4.5 million in Q2 2025.

Castle Biosciences (CSTL) Profit After Tax (2018 - 2026) Analysis & Trends

Castle Biosciences has reported Profit After Tax for 9 years, with the latest figure at -$2.1 million in Q2 2026.

  • Quarterly Profit After Tax fell 145.54% year-over-year to -$2.1 million in Q2 2026, while the trailing twelve-month figure through Jun 2026 was -$19.4 million (down 105.1% YoY) and the FY2025 annual result came in at -$24.2 million, down 232.41% from the prior year.
  • Profit After Tax climbed to -$2.1 million in Q2 2026 per CSTL's latest filing, from -$14.5 million in the prior quarter.
  • Over five years, Profit After Tax peaked at $9.6 million in Q4 2024 and troughed at -$29.2 million in Q1 2023.
  • A 5-year average of -$8.2 million and a median of -$2.6 million in 2023 frame the typical range for Profit After Tax.
  • The sharpest annual moves came in 2023 and 2024: Profit After Tax slumped 1039.38% in 2023, then surged 471.71% in 2024.
  • Over 5 years, Profit After Tax stood at -$20.6 million in 2022, then jumped by 87.49% to -$2.6 million in 2023, then soared by 471.71% to $9.6 million in 2024, then sank by 124.32% to -$2.3 million in 2025, then increased by 11.66% to -$2.1 million in 2026.
  • According to Business Quant data, Profit After Tax over the past three periods registered -$2.1 million, -$14.5 million, and -$2.3 million for Q2 2026, Q1 2026, and Q4 2025 respectively.

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) PAT (Qtr)
1 Thermo Fisher Scientific 234.15 Bn 230.09 Bn 8.34 Bn 1.74 Bn
2 Danaher 152.10 Bn 147.75 Bn 3.61 Bn 870.00 Mn
3 Natera 48.48 Bn 47.38 Bn 486.15 Mn -66.97 Mn
4 Agilent Technologies 44.35 Bn 42.55 Bn 990.00 Mn 339.00 Mn
5 Iqvia Holdings 43.68 Bn 41.60 Bn 1.44 Bn 258.00 Mn
6 Idexx Laboratories 43.02 Bn 42.83 Bn 779.09 Mn 338.41 Mn
7 Illumina 34.39 Bn 33.22 Bn 770.00 Mn 207.00 Mn
8 Mettler Toledo International 28.29 Bn 28.24 Bn 650.22 Mn 256.84 Mn
9 Labcorp Holdings 27.51 Bn 27.37 Bn 1.11 Bn 299.10 Mn
10 Castle Biosciences 1.04 Bn 773.13 Mn 79.85 Mn -2.06 Mn

Historic Data

Download Data
DateValue
Jun 30, 2026 -2.06 Mn
Mar 31, 2026 -14.52 Mn
Dec 31, 2025 -2.33 Mn
Sep 30, 2025 -501,000.00
Jun 30, 2025 4.52 Mn
Mar 31, 2025 -25.85 Mn
Dec 31, 2024 9.59 Mn
Sep 30, 2024 2.27 Mn
Jun 30, 2024 8.92 Mn
Mar 31, 2024 -2.53 Mn
Dec 31, 2023 -2.58 Mn
Sep 30, 2023 -6.91 Mn
Jun 30, 2023 -18.78 Mn
Mar 31, 2023 -29.20 Mn
Dec 31, 2022 -20.62 Mn
Sep 30, 2022 -20.25 Mn
Jun 30, 2022 -1.65 Mn
Mar 31, 2022 -24.62 Mn
Dec 31, 2021 -6.43 Mn
Sep 30, 2021 -11.79 Mn