Castle Biosciences (CSTL) Retained Earnings (2018 - 2026)
Castle Biosciences' Retained Earnings was -$240.9 million in Q2 2026, compared with -$221.5 million a year earlier.
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Analysis
Castle Biosciences (CSTL) Retained Earnings (2018 - 2026) Analysis & Trends
At the end of FY2025, Retained Earnings at Castle Biosciences came in at -$224.28 million.
- In earlier years, Retained Earnings was -$200.13 million in FY2024, -$218.37 million in FY2023, -$160.91 million in FY2022 and -$93.77 million in FY2021.
- The Q2 2026 figure marks the lowest quarterly Retained Earnings in data going back to Q4 2018.
- Per Business Quant data, CSTL's Retained Earnings in the three quarters before Q2 2026 was -$238.81 million (Q1 2026), -$224.28 million (Q4 2025) and -$222 million (Q3 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Retained Earnings (Qtr) |
|---|---|---|---|---|---|
| 1 | HCA Healthcare | 102.01 Bn | 98.02 Bn | - | -6.31 Bn |
| 2 | Natera | 59.95 Bn | 55.63 Bn | 485.19 Mn | -2.93 Bn |
| 3 | Quest Diagnostics | 26.42 Bn | 24.55 Bn | 1.03 Bn | 10.37 Bn |
| 4 | Labcorp Holdings | 26.28 Bn | 24.03 Bn | 1.11 Bn | 8.70 Bn |
| 5 | Tenet Healthcare | 22.59 Bn | 11.59 Bn | - | 5.94 Bn |
| 6 | Guardant Health | 22.50 Bn | 18.57 Bn | 219.03 Mn | -3.23 Bn |
| 7 | BrightSpring Health Services | 12.93 Bn | 11.26 Bn | 492.75 Mn | 38.43 Mn |
| 8 | Fresenius Medical Care AG | 12.56 Bn | 4.52 Bn | 1.52 Bn | 13.81 Bn |
| 9 | Tempus AI | 12.26 Bn | 9.29 Bn | 246.50 Mn | -2.52 Bn |
| 10 | Castle Biosciences | 1.05 Bn | -69.31 Mn | 79.85 Mn | -240.90 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | -240.90 Mn |
| Mar 31, 2026 | -238.81 Mn |
| Dec 31, 2025 | -224.28 Mn |
| Sep 30, 2025 | -222.00 Mn |
| Jun 30, 2025 | -221.50 Mn |
| Mar 31, 2025 | -226.00 Mn |
| Dec 31, 2024 | -200.13 Mn |
| Sep 30, 2024 | -209.72 Mn |
| Jun 30, 2024 | -212.00 Mn |
| Mar 31, 2024 | -220.91 Mn |
| Dec 31, 2023 | -218.37 Mn |
| Sep 30, 2023 | -215.80 Mn |
| Jun 30, 2023 | -208.90 Mn |
| Mar 31, 2023 | -190.11 Mn |
| Dec 31, 2022 | -160.91 Mn |
| Sep 30, 2022 | -140.29 Mn |
| Jun 30, 2022 | -120.04 Mn |
| Mar 31, 2022 | -118.39 Mn |
| Dec 31, 2021 | -93.77 Mn |
| Sep 30, 2021 | -87.36 Mn |
API Access
Castle Biosciences Retained Earnings 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=retained-earnings&ticker=CSTL&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "retained-earnings", "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=retained-earnings&ticker=CSTL&period=max&api_key=YOUR_API_KEY");
const data = await res.json();