Castle Biosciences (CSTL) EBT (2018 - 2026)
Castle Biosciences' (CSTL) quarterly EBT came in at -$1.7 million in Q2 2026, down 1081.82% year-over-year from $172129.6 in Q2 2025, and up 88.27% quarter-over-quarter from -$14.4 million in Q1 2026.
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Analysis
Castle Biosciences (CSTL) EBT (2018 - 2026) Analysis & Trends
Castle Biosciences has disclosed EBT across 9 years of filings, most recently posting -$1.7 million for Q2 2026.
- In Q2 2026, EBT fell 1081.82% year-over-year to -$1.7 million; the TTM figure through Jun 2026 stood at -$19.2 million (down 87.4% YoY), while the FY2025 annual figure was -$29.5 million, down 236.87% from the prior year.
- EBT came in at -$1.7 million for Q2 2026 at Castle Biosciences, up from -$14.4 million in the prior quarter.
- In the past five years, EBT ranged from a high of $8.3 million in Q3 2024 to a low of -$29.2 million in Q1 2023.
- Average EBT over 5 years is -$8.4 million, with a median of -$3.2 million recorded in 2022.
- Year-over-year, EBT jumped 410.31% in 2024 and slumped 1081.82% in 2026.
- Over 5 years, EBT stood at -$20.6 million in 2022, then surged by 87.64% to -$2.5 million in 2023, then jumped by 410.31% to $7.9 million in 2024, then plunged by 134.42% to -$2.7 million in 2025, then soared by 37.73% to -$1.7 million in 2026.
- Per Business Quant data, the three most recent EBT figures were -$1.7 million in Q2 2026, -$14.4 million in Q1 2026, and -$2.7 million in Q4 2025.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | EBT (Qtr) |
|---|---|---|---|---|---|
| 1 | Natera | 53.05 Bn | 51.95 Bn | 486.15 Mn | -67.23 Mn |
| 2 | Quest Diagnostics | 27.19 Bn | 26.87 Bn | 1.03 Bn | 412.00 Mn |
| 3 | Labcorp Holdings | 25.93 Bn | 25.81 Bn | 1.11 Bn | 386.40 Mn |
| 4 | Guardant Health | 23.97 Bn | 22.91 Bn | 219.03 Mn | -119.96 Mn |
| 5 | Tempus AI | 13.64 Bn | 12.82 Bn | 274.25 Mn | 8.82 Mn |
| 6 | Caris Life Sciences | 8.47 Bn | 7.68 Bn | 182.38 Mn | -614,000.00 |
| 7 | Sotera Health | 5.35 Bn | 4.99 Bn | 177.96 Mn | 78.05 Mn |
| 8 | BillionToOne | 4.96 Bn | 4.41 Bn | 77.11 Mn | 7.52 Mn |
| 9 | Adaptive Biotechnologies | 4.55 Bn | 4.21 Bn | 51.39 Mn | -16.21 Mn |
| 10 | Castle Biosciences | 1.08 Bn | 811.36 Mn | 79.85 Mn | -1.69 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | -1.69 Mn |
| Mar 31, 2026 | -14.41 Mn |
| Dec 31, 2025 | -2.71 Mn |
| Sep 30, 2025 | -386,000.00 |
| Jun 30, 2025 | -143,000.00 |
| Mar 31, 2025 | -26.27 Mn |
| Dec 31, 2024 | 7.89 Mn |
| Sep 30, 2024 | 8.28 Mn |
| Jun 30, 2024 | 7.89 Mn |
| Mar 31, 2024 | -2.49 Mn |
| Dec 31, 2023 | -2.54 Mn |
| Sep 30, 2023 | -6.87 Mn |
| Jun 30, 2023 | -18.76 Mn |
| Mar 31, 2023 | -29.19 Mn |
| Dec 31, 2022 | -20.56 Mn |
| Sep 30, 2022 | -20.25 Mn |
| Jun 30, 2022 | -3.61 Mn |
| Mar 31, 2022 | -24.49 Mn |
| Dec 31, 2021 | -15.16 Mn |
| Sep 30, 2021 | -11.79 Mn |
API Access
Castle Biosciences EBT 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=ebt&ticker=CSTL&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "ebt", "ticker": "CSTL", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=ebt&ticker=CSTL&period=max&api_key=YOUR_API_KEY");
const data = await res.json();