Castle Biosciences, Inc.
CSTL scores 38.5 on the Conservative profile, blending a fundamental score (80% weight, emphasizing quality and stability (84% of fundamental weight)) with a machine-learning signal (20% weight) trained on 82 features across 30 years of data.
Moderate penalties (-5.0 points) reflect identified risk factors. The overall score balances these against the stock's fundamental strengths.
These features are direct inputs to the machine learning model. The model was trained on these signals alongside 100 features (including 12 momentum/technical indicators) to produce the ML percentile score.
| Stock | Score | P/E | Rev Growth | Margin | Mkt Cap |
|---|---|---|---|---|---|
| CSTL | 38.5 | N/A | 51.1% | -3.6% | $853M |
| INCY | 89.6 | 15.8 | 21.2% | 25.0% | $20.1B |
| GMAB | 85.5 | 13.1 | 22.8% | 36.4% | $18.5B |
| CPRX | 82.2 | 13.7 | 23.5% | 37.6% | $3.0B |
| VRTX | 78.0 | 32.1 | 8.9% | 32.9% | $126.0B |
| ASND | 75.7 | 16.6 | 98.0% | -31.7% | $13.3B |
| NBIX | 74.7 | 26.5 | 21.4% | 16.7% | $12.5B |
| ALKS | 74.6 | 16.5 | -6.4% | 23.9% | $5.5B |
| AMGN | 73.8 | 26.0 | 10.0% | 21.0% | $199.0B |
| ARGX | 73.6 | 35.1 | 78.6% | 38.0% | $50.9B |
| HOLX | 73.3 | 31.1 | 1.7% | 13.8% | $16.8B |
| REGN | 72.7 | 19.4 | 1.0% | 31.4% | $84.9B |
| ISRG | 72.3 | 61.7 | 20.5% | 28.4% | $172.5B |
| EXEL | 71.9 | 15.1 | 7.0% | 33.7% | $11.7B |
| KRYS | 71.0 | 41.4 | 473.0% | 30.7% | $8.0B |
| HALO | 70.2 | 16.8 | 22.4% | 43.7% | $9.3B |
| Sector Average | 37.1 | 252.3 | 161.5% | -3292.7% | — |
Castle Biosciences, Inc., a commercial-stage diagnostics company, focuses to provide diagnostic and prognostic testing services for dermatological cancers. Its lead product is DecisionDx-Melanoma, a multi-gene expression profile (GEP) test to identify the risk of metastasis for patients diagnosed with invasive cutaneous melanoma. The company also offers DecisionDx-UM test, a proprietary GEP test that predicts the risk of metastasis for patients with uveal melanoma, a rare eye cancer; DecisionDx-SCC, a proprietary 40-gene expression profile test that uses an individual patient's tumor biology to predict individual risk of squamous cell carcinoma metastasis for patients with one or more risk factors; and DecisionDx DiffDx-Melanoma and myPath Melanoma, a proprietary GEP test to diagnose suspicious pigmented lesions. It offers test services through physicians and their patients. The company was founded in 2007 and is headquartered in Friendswood, Texas.
Stock is in an uptrend above the 200-day moving average. This is the stage where institutional accumulation typically occurs. The 50-day SMA provides support.
| Metric | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 |
|---|---|---|---|---|
| Revenue | $83M | $86M | $88M | $86M |
| Gross Profit | $64M | $69M | $72M | $70M |
| Operating Income | $-7M | $-4M | $-28M | $4M |
| Net Income | $-501,000 | $5M | $-26M | $10M |
| EPS (Diluted) | $-0.02 | $0.15 | $-0.90 | $0.32 |
| Gross Margin | 77.5% | 79.5% | 81.4% | 81.3% |
| Operating Margin | -8.2% | -4.9% | -31.7% | 4.7% |
| Net Margin | -0.6% | 5.2% | -29.4% | 11.1% |
| Year | Low | High | Range | Status |
|---|---|---|---|---|
| 2021 | $37.99 | $89.09 | 80.4% | Wide |
| 2022 | $15.58 | $48.40 | 102.6% | Wide |
| 2023 | $9.26 | $29.59 | 104.7% | Wide |
| 2024 | $16.97 | $35.84 | 71.5% | Wide |
| 2025 | $14.59 | $42.18 | 97.2% | Wide |
Scores are generated by a multi-stage ML pipeline combining fundamental analysis, ensemble predictions, and structural risk signals. All data is for research purposes only and does not constitute financial advice. Past performance does not guarantee future results.