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Castle Biosciences Inc (CSTL)

Upturn stock ratingUpturn stock rating
$21.62
Last Close (24-hour delay)
Profit since last BUY-9.95%
upturn advisory
Consider higher Upturn Star rating
BUY since 11 days
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Upturn Advisory Summary

09/15/2025: CSTL (1-star) has a low Upturn Star Rating. Not recommended to BUY.

Upturn Star Rating

rating

Not Recommended Performance

These Stocks/ETFs, based on Upturn Advisory, consistently fall short of market performance, signaling caution before investing.

Number of Analysts

rating

9 Analysts rated it

Limited analyst coverage, niche firm, research info may be scarce.

1 Year Target Price $35.62

1 Year Target Price $35.62

Analysts Price Target For last 52 week
$35.62 Target price
52w Low $14.59
Current$21.62
52w High $35.84

Analysis of Past Performance

Type Stock
Historic Profit -77.85%
Avg. Invested days 23
Today’s Advisory Consider higher Upturn Star rating
Upturn Star Rating Upturn stock ratingUpturn stock rating
Upturn Advisory Performance Upturn Advisory Performance 2.0
Stock Returns Performance Upturn Returns Performance 1.0
Upturn Profits based on simulationUpturn Profits based on simulation Profits based on simulation
Upturn Profits based on simulationUpturn Profits based on simulation Last Close 09/15/2025

Key Highlights

Company Size Small-Cap Stock
Market Capitalization 621.36M USD
Price to earnings Ratio -
1Y Target Price 35.62
Price to earnings Ratio -
1Y Target Price 35.62
Volume (30-day avg) 9
Beta 1.07
52 Weeks Range 14.59 - 35.84
Updated Date 09/15/2025
52 Weeks Range 14.59 - 35.84
Updated Date 09/15/2025
Dividends yield (FY) -
Basic EPS (TTM) -0.34

Analyzing Revenue: Products, Geography and Growth

Revenue by Products

Product revenue - Year on Year

Earnings Date

Report Date -
When -
Estimate -
Actual -

Profitability

Profit Margin -2.73%
Operating Margin (TTM) -4.93%

Management Effectiveness

Return on Assets (TTM) -2.79%
Return on Equity (TTM) -2.15%

Valuation

Trailing PE -
Forward PE -
Enterprise Value 382779379
Price to Sales(TTM) 1.79
Enterprise Value 382779379
Price to Sales(TTM) 1.79
Enterprise Value to Revenue 1.11
Enterprise Value to EBITDA 11.75
Shares Outstanding 29008300
Shares Floating 26758109
Shares Outstanding 29008300
Shares Floating 26758109
Percent Insiders 2.9
Percent Institutions 93.08

ai summary icon Upturn AI SWOT

Castle Biosciences Inc

stock logo

Company Overview

overview logo History and Background

Castle Biosciences was founded in 2005 and is focused on providing diagnostic and prognostic tests to improve health outcomes. They develop and commercialize innovative tests for cancers.

business area logo Core Business Areas

  • Dermatology: Provides tests for melanoma, cutaneous squamous cell carcinoma, and other skin cancers, aiding in risk assessment and treatment decisions.
  • Gastroenterology: Offers tests to improve the management of Barrett's esophagus, a precancerous condition.
  • DecisionDx-UM: A gene expression profile test used to predict the risk of metastasis in patients with uveal melanoma.

leadership logo Leadership and Structure

Derek J. Maetzold serves as the President and CEO. The company has a traditional corporate structure with departments for R&D, commercial operations, and finance.

Top Products and Market Share

overview logo Key Offerings

  • DecisionDx-Melanoma: A gene expression profile test used to predict the risk of metastasis in cutaneous melanoma patients. Market share is significant in the cutaneous melanoma prognostic testing market. Competitors include Myriad Genetics (MYGN) and DermTech (DMTK).
  • DecisionDx-SCC: A gene expression profile test to predict the risk of metastasis in cutaneous squamous cell carcinoma (SCC) patients. Competitors include DermTech (DMTK).
  • DecisionDx-UM: A gene expression profile test used to predict the risk of metastasis in patients with uveal melanoma. Has a significant portion of the UM testing market. No direct competitors are visible.

Market Dynamics

industry overview logo Industry Overview

The diagnostic testing market is growing, driven by advancements in genomics and personalized medicine. Demand for prognostic tests in oncology is increasing.

Positioning

Castle Biosciences is positioned as a leader in personalized genomic information for dermatologic cancers and other cancers, with a focus on high-value, clinically actionable tests. Their competitive advantage lies in their proprietary gene expression profile technology and extensive clinical validation data.

Total Addressable Market (TAM)

The total addressable market for Castle Biosciencesu2019 tests is estimated to be in the hundreds of millions of dollars, encompassing melanoma, SCC, and other cancer types. They are positioned to capture a substantial portion of this market with their expanding product portfolio.

Upturn SWOT Analysis

Strengths

  • Proprietary gene expression profiling technology
  • Strong clinical validation data
  • Focus on high-value, clinically actionable tests
  • Experienced management team
  • Established relationships with key opinion leaders

Weaknesses

  • Reliance on a limited number of products
  • Reimbursement risks from payers
  • Intense competition in the diagnostics market
  • Dependence on third-party laboratories for processing tests
  • Relatively small company size

Opportunities

  • Expansion into new cancer types and indications
  • Development of companion diagnostics
  • Strategic partnerships and acquisitions
  • Increasing adoption of personalized medicine
  • Growing awareness of the importance of prognostic testing

Threats

  • Changes in reimbursement policies
  • Emergence of competing technologies
  • Regulatory hurdles
  • Economic downturns affecting healthcare spending
  • Patent challenges

Competitors and Market Share

competitor logo Key Competitors

  • MYGN
  • DMTK

Competitive Landscape

Castle Biosciences has a competitive advantage in its proprietary gene expression profiling technology. However, it faces competition from larger, more established companies like Myriad Genetics and DermTech. Castle Biosciences needs to continue to innovate and expand its product portfolio to maintain its competitive position.

Major Acquisitions

MyPath Laboratories

  • Year: 2021
  • Acquisition Price (USD millions): 45
  • Strategic Rationale: The acquisition of MyPath Laboratories expanded Castle Biosciences' portfolio into hematopathology and other diagnostic areas.

Growth Trajectory and Initiatives

Historical Growth: Castle Biosciences has experienced significant revenue growth in recent years, driven by increasing adoption of its tests and expansion into new markets.

Future Projections: Analysts project continued revenue growth for Castle Biosciences, driven by increasing demand for its tests and expansion into new indications.

Recent Initiatives: Recent initiatives include the acquisition of MyPath Laboratories, expansion of the DecisionDx-SCC test, and ongoing clinical studies.

Summary

Castle Biosciences is a diagnostic company focused on dermatologic and other cancers. It has strong technology and clinical validation, driving revenue growth. However, it faces reimbursement risks, competition, and dependence on a limited number of tests. Future growth depends on expanding its product portfolio and navigating the changing healthcare landscape.

Peer Comparison

Sources and Disclaimers

Data Sources:

  • Company Website
  • SEC Filings
  • Analyst Reports

Disclaimers:

The information provided is for informational purposes only and should not be construed as investment advice. Market share and financial data are estimates and may vary.

Upturn AI SummarizationUpturn AI Summarization AI Summarization is directionally correct and might not be accurate.

Upturn AI SummarizationUpturn AI Summarization Summarized information shown could be a few years old and not current.

Upturn AI SummarizationUpturn AI Summarization Fundamental Rating based on AI could be based on old data.

Upturn AI SummarizationUpturn AI Summarization AI-generated summaries may have inaccuracies (hallucinations). Please verify the information before taking action.

About Castle Biosciences Inc

Exchange NASDAQ
Headquaters Friendswood, TX, United States
IPO Launch date 2019-07-25
Founder, CEO, President & Director Mr. Derek J. Maetzold
Sector Healthcare
Industry Diagnostics & Research
Full time employees 798
Full time employees 798

Castle Biosciences, Inc., a molecular diagnostics company, provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), uveal melanoma, and mental health conditions. The company offers DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test that predicts the risk of metastasis for patients with uveal melanoma; DecisionDx-SCC, a risk stratification test for cutaneous squamous cell carcinoma; MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions; and TissueCypher, a risk stratification spatial-omics test to predict future development of progression of high-grade dysplasia and/or esophageal cancer in patients with non-dysplastic, indefinite dysplasia, and low-grade dysplasia BE. It also provides DecisionDx-UM, a risk stratification GEP test that predicts the risk of metastasis for patients with uveal melanoma; and IDgenetix, a pharmacogenomic test that helps guide optimal drug treatment for patients diagnosed with major depressive disorder, schizophrenia, bipolar disorder, anxiety disorders, social phobia, obsessive-compulsive personality disorder, post-traumatic stress disorder, and attention deficit hyperactivity disorder. The company offers its products to skin cancer and gastroenterology markets. The company was incorporated in 2007 and is headquartered in Friendswood, Texas.