Castle Biosciences (CSTL) Research & Development (2018 - 2026)
Castle Biosciences' Research & Development was $15.81 million in Q3 2026, up 22.0% from $12.96 million a year earlier and up 8.7% from the prior quarter.
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Analysis
Castle Biosciences (CSTL) Research & Development (2018 - 2026) Analysis & Trends
On a trailing twelve-month basis, Castle Biosciences' Research & Development was $58.29 million through Sep 30, 2026, up 16.3% year-over-year; for FY2025, it was $51.85 million, down 0.4% from FY2024.
- Research & Development shows a five-year compound annual growth rate of 31.4% (FY2020 to FY2025).
- In earlier years, Research & Development was $52.04 million in FY2024 (-2.9%), $53.62 million in FY2023 (+19.4%), $44.9 million in FY2022 (+51.5%) and $29.65 million in FY2021 (+123.6%).
- The Q3 2026 figure marks the highest quarterly Research & Development in data going back to Q2 2018.
- Compared with a year earlier, Research & Development has increased for five straight quarters, with growth averaging 5.3% over the last eight quarters.
- The best year-over-year quarter for Research & Development over five years was Q4 2021 (growth of 106.2%); the worst was Q2 2025 (a decline of 9.5%).
- Per Business Quant data, CSTL's Research & Development in the three quarters before Q3 2026 was $14.54 million (Q2 2026), $14.43 million (Q1 2026) and $13.52 million (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | R&D (Qtr) |
|---|---|---|---|---|---|
| 1 | HCA Healthcare | 105.29 Bn | 103.13 Bn | 17.03 Bn | - |
| 2 | Natera | 46.06 Bn | 41.68 Bn | 513.47 Mn | 242.43 Mn |
| 3 | Labcorp Holdings | 30.09 Bn | 28.19 Bn | 1.11 Bn | - |
| 4 | Quest Diagnostics | 28.58 Bn | 26.66 Bn | 1.04 Bn | - |
| 5 | Guardant Health | 20.44 Bn | 16.05 Bn | 236.15 Mn | 100.84 Mn |
| 6 | BrightSpring Health Services | 14.16 Bn | 11.04 Bn | 518.55 Mn | - |
| 7 | Encompass Health | 13.83 Bn | 14.29 Bn | 1.54 Bn | - |
| 8 | Tempus AI | 12.69 Bn | 9.84 Bn | 266.70 Mn | 46.00 Mn |
| 9 | Davita | 11.06 Bn | 9.92 Bn | 1.13 Bn | - |
| 10 | Castle Biosciences | 1.04 Bn | -65.97 Mn | 78.97 Mn | 15.81 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 15.81 Mn |
| Jun 30, 2026 | 14.54 Mn |
| Mar 31, 2026 | 14.43 Mn |
| Dec 31, 2025 | 13.52 Mn |
| Sep 30, 2025 | 12.96 Mn |
| Jun 30, 2025 | 12.79 Mn |
| Mar 31, 2025 | 12.59 Mn |
| Dec 31, 2024 | 11.77 Mn |
| Sep 30, 2024 | 12.32 Mn |
| Jun 30, 2024 | 14.14 Mn |
| Mar 31, 2024 | 13.81 Mn |
| Dec 31, 2023 | 12.99 Mn |
| Sep 30, 2023 | 12.92 Mn |
| Jun 30, 2023 | 13.31 Mn |
| Mar 31, 2023 | 14.39 Mn |
| Dec 31, 2022 | 11.31 Mn |
| Sep 30, 2022 | 10.91 Mn |
| Jun 30, 2022 | 11.93 Mn |
| Mar 31, 2022 | 10.76 Mn |
| Dec 31, 2021 | 9.45 Mn |
API Access
Castle Biosciences Research & Development 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=research-and-development&ticker=CSTL&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "research-and-development", "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=research-and-development&ticker=CSTL&period=max&api_key=YOUR_API_KEY");
const data = await res.json();