Castle Biosciences (CSTL) Change in Inventory (2018 - 2026)
Castle Biosciences (CSTL) reported Change in Inventory of -$199,000 for Q3 2026, compared with $307,000 a year earlier.
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Analysis
Castle Biosciences (CSTL) Change in Inventory (2018 - 2026) Analysis & Trends
Over the twelve months ended Sep 30, 2026, Castle Biosciences' Change in Inventory came in at $1.73 million, down 17.6% year-over-year; for FY2025, it came in at $2.14 million.
- Change in Inventory has a five-year compound annual growth rate of 16.9% (FY2020 to FY2025).
- By year, Change in Inventory came in at $193,000 in FY2024 (-95.1%), $3.96 million in FY2023 (+135.8%), $1.68 million in FY2022 and -$327,000 in FY2021.
- The Q3 2026 figure ranks as the lowest quarterly Change in Inventory since Q1 2025.
- Year over year, Change in Inventory gained in two of the last four quarters, with growth averaging 48.7%.
- The high point for year-over-year Change in Inventory in five years was Q2 2025 (growth of 312.2%); the low point was Q2 2026 (a decline of 92.2%).
- Per Business Quant data, the three quarters before Q3 2026 came in at $119,000 (Q2 2026), $207,000 (Q1 2026) and $1.6 million (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Change Inventory (Qtr) |
|---|---|---|---|---|---|
| 1 | HCA Healthcare | 105.29 Bn | 103.13 Bn | 17.03 Bn | -108.00 Mn |
| 2 | Natera | 46.06 Bn | 41.68 Bn | 513.47 Mn | 11.36 Mn |
| 3 | Labcorp Holdings | 30.09 Bn | 28.19 Bn | 1.11 Bn | -25.30 Mn |
| 4 | Quest Diagnostics | 28.58 Bn | 26.66 Bn | 1.04 Bn | - |
| 5 | Guardant Health | 20.44 Bn | 16.05 Bn | 236.15 Mn | -11.97 Mn |
| 6 | BrightSpring Health Services | 14.16 Bn | 11.04 Bn | 518.55 Mn | 96.58 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 | -28,000.00 |
| 9 | Davita | 11.06 Bn | 9.92 Bn | 1.13 Bn | 10.21 Mn |
| 10 | Castle Biosciences | 1.04 Bn | -65.97 Mn | 78.97 Mn | -199,000.00 |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | -199,000.00 |
| Jun 30, 2026 | 119,000.00 |
| Mar 31, 2026 | 207,000.00 |
| Dec 31, 2025 | 1.60 Mn |
| Sep 30, 2025 | 307,000.00 |
| Jun 30, 2025 | 1.52 Mn |
| Mar 31, 2025 | -1.29 Mn |
| Dec 31, 2024 | 1.56 Mn |
| Sep 30, 2024 | -1.44 Mn |
| Jun 30, 2024 | 368,000.00 |
| Mar 31, 2024 | -297,000.00 |
| Dec 31, 2023 | 2.17 Mn |
| Sep 30, 2023 | -352,000.00 |
| Jun 30, 2023 | 1.60 Mn |
| Mar 31, 2023 | 540,000.00 |
| Dec 31, 2022 | 178,000.00 |
| Sep 30, 2022 | 436,000.00 |
| Jun 30, 2022 | 737,000.00 |
| Mar 31, 2022 | 329,000.00 |
| Dec 31, 2021 | -355,000.00 |
API Access
Castle Biosciences Change in Inventory 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=change-in-inventory&ticker=CSTL&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "change-in-inventory", "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=change-in-inventory&ticker=CSTL&period=max&api_key=YOUR_API_KEY");
const data = await res.json();