Castle Biosciences (CSTL) Interest Expenses (2018 - 2026)
Castle Biosciences' Interest Expenses was $193,000 in Q2 2026, up 819.0% from $21,000 a year earlier and up 44.0% from the prior quarter.
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Analysis
Castle Biosciences (CSTL) Interest Expenses (2018 - 2026) Analysis & Trends
On a trailing twelve-month basis, Castle Biosciences' Interest Expenses was $375,000 through Jun 30, 2026, up 13.3% year-over-year; for FY2025, it was $86,000, down 85.1% from FY2024.
- Interest Expenses shows a five-year compound annual growth rate of -49.6% (FY2020 to FY2025).
- In earlier years, Interest Expenses was $577,000 in FY2024, $11,000 in FY2023 (-35.3%), $17,000 in FY2022 and $1,000 in FY2021 (-100.0%).
- The Q2 2026 figure marks the highest quarterly Interest Expenses since Q3 2024.
- Compared with a year earlier, Interest Expenses was higher in three of the last six quarters, with growth averaging 212.4%.
- The best year-over-year quarter for Interest Expenses over five years was Q2 2026 (growth of 819.0%); the worst was Q4 2021 (a decline of 99.7%).
- Per Business Quant data, CSTL's Interest Expenses in the three quarters before Q2 2026 was $134,000 (Q1 2026), $24,000 (Q4 2025) and $24,000 (Q3 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Int Expense (Qtr) |
|---|---|---|---|---|---|
| 1 | HCA Healthcare | 101.22 Bn | 97.23 Bn | - | 599.00 Mn |
| 2 | Natera | 59.29 Bn | 54.98 Bn | 485.19 Mn | 890,000.00 |
| 3 | Quest Diagnostics | 26.56 Bn | 24.69 Bn | 1.03 Bn | 68.00 Mn |
| 4 | Labcorp Holdings | 26.41 Bn | 24.16 Bn | 1.11 Bn | 61.10 Mn |
| 5 | Tenet Healthcare | 22.49 Bn | 11.49 Bn | - | 204.00 Mn |
| 6 | Guardant Health | 22.12 Bn | 18.19 Bn | 219.03 Mn | 1.35 Mn |
| 7 | BrightSpring Health Services | 12.91 Bn | 11.24 Bn | 492.75 Mn | 36.88 Mn |
| 8 | Fresenius Medical Care AG | 12.56 Bn | 4.51 Bn | 1.52 Bn | 113.39 Mn |
| 9 | Tempus AI | 12.17 Bn | 9.20 Bn | 246.50 Mn | 10.28 Mn |
| 10 | Castle Biosciences | 1.05 Bn | -67.48 Mn | 79.85 Mn | 193,000.00 |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 193,000.00 |
| Mar 31, 2026 | 134,000.00 |
| Dec 31, 2025 | 24,000.00 |
| Sep 30, 2025 | 24,000.00 |
| Jun 30, 2025 | 21,000.00 |
| Mar 31, 2025 | 17,000.00 |
| Dec 31, 2024 | 92,000.00 |
| Sep 30, 2024 | 201,000.00 |
| Jun 30, 2024 | 270,000.00 |
| Mar 31, 2024 | 14,000.00 |
| Dec 31, 2023 | 2,000.00 |
| Sep 30, 2023 | 2,000.00 |
| Jun 30, 2023 | 3,000.00 |
| Mar 31, 2023 | 4,000.00 |
| Dec 31, 2022 | 4,000.00 |
| Sep 30, 2022 | 6,000.00 |
| Jun 30, 2022 | 4,000.00 |
| Mar 31, 2022 | 3,000.00 |
| Dec 31, 2021 | 1,000.00 |
| Dec 31, 2020 | 395,000.00 |
API Access
Castle Biosciences Interest 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=interest-expenses&ticker=CSTL&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "interest-expenses", "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=interest-expenses&ticker=CSTL&period=max&api_key=YOUR_API_KEY");
const data = await res.json();