Castle Biosciences (CSTL) Return on Sales [ROS] (2018 - 2026)
Castle Biosciences (CSTL) reported Return on Sales [ROS] of -2.65% for Q3 2026, up 5.54 percentage points from -8.19% a year earlier and up 0.31 percentage points from the prior quarter.
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Analysis
Castle Biosciences (CSTL) Return on Sales [ROS] (2018 - 2026) Analysis & Trends
Over the twelve months ended Sep 30, 2026, Castle Biosciences' Return on Sales [ROS] came in at -7.43%, up 2.73 percentage points year-over-year; for FY2025, it was -12.44%, down 15.05 percentage points from FY2024.
- Return on Sales [ROS] has a five-year change of -1.99 percentage points (FY2020 to FY2025).
- By year, Return on Sales [ROS] came in at 2.61% in FY2024 (+33.54 pp), -30.93% in FY2023 (+22.24 pp), -53.16% in FY2022 (-10.56 pp) and -42.60% in FY2021 (-32.16 pp).
- The Q3 2026 figure ranks as the highest quarterly Return on Sales [ROS] since Q4 2024.
- Year over year, Return on Sales [ROS] has now increased in each of the last three quarters, with an average year-over-year change of -3.46 percentage points over the last eight quarters.
- The high point for year-over-year Return on Sales [ROS] in five years was Q1 2024 (a gain of 67.49 percentage points); the low point was Q1 2022 (a drop of 72.52 percentage points).
- Per Business Quant data, the three quarters before Q3 2026 came in at -2.96% (Q2 2026), -22.00% (Q1 2026) and -4.40% (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | ROS (Qtr) |
|---|---|---|---|---|---|
| 1 | HCA Healthcare | 105.29 Bn | 103.13 Bn | 17.03 Bn | 15.00% |
| 2 | Natera | 46.06 Bn | 41.68 Bn | 513.47 Mn | -8.60% |
| 3 | Labcorp Holdings | 30.09 Bn | 28.19 Bn | 1.11 Bn | 10.55% |
| 4 | Quest Diagnostics | 28.58 Bn | 26.66 Bn | 1.04 Bn | 15.47% |
| 5 | Guardant Health | 20.44 Bn | 16.05 Bn | 236.15 Mn | -36.78% |
| 6 | BrightSpring Health Services | 14.16 Bn | 11.04 Bn | 518.55 Mn | 3.81% |
| 7 | Encompass Health | 13.83 Bn | 14.29 Bn | 1.54 Bn | 13.86% |
| 8 | Tempus AI | 12.69 Bn | 9.84 Bn | 266.70 Mn | -13.82% |
| 9 | Davita | 11.06 Bn | 9.92 Bn | 1.13 Bn | 13.95% |
| 10 | Castle Biosciences | 1.04 Bn | -65.97 Mn | 78.97 Mn | -2.65% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | -2.65% |
| Jun 30, 2026 | -2.96% |
| Mar 31, 2026 | -22.00% |
| Dec 31, 2025 | -4.40% |
| Sep 30, 2025 | -8.19% |
| Jun 30, 2025 | -4.93% |
| Mar 31, 2025 | -31.74% |
| Dec 31, 2024 | 4.69% |
| Sep 30, 2024 | 5.92% |
| Jun 30, 2024 | 5.76% |
| Mar 31, 2024 | -7.50% |
| Dec 31, 2023 | -8.56% |
| Sep 30, 2023 | -15.68% |
| Jun 30, 2023 | -42.20% |
| Mar 31, 2023 | -74.99% |
| Dec 31, 2022 | -59.55% |
| Sep 30, 2022 | -58.19% |
| Jun 30, 2022 | -11.40% |
| Mar 31, 2022 | -91.30% |
| Dec 31, 2021 | -60.59% |
API Access
Castle Biosciences Return on Sales [ROS] 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=return-on-sales-%5Bros%5D&ticker=CSTL&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "return-on-sales-[ros]", "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=return-on-sales-%5Bros%5D&ticker=CSTL&period=max&api_key=YOUR_API_KEY");
const data = await res.json();