Castle Biosciences Inc (NASDAQ:CSTL) — Market Cap & Net Worth
Market Cap & Net Worth: Castle Biosciences Inc (CSTL)
Castle Biosciences Inc (NASDAQ:CSTL) has a market capitalization of $1.00 Billion ($1.00 Billion) as of September 16, 2026. Listed on the NASDAQ stock exchange, this USA-based company holds position #8890 globally and #2538 in its home market, demonstrating a 7.87% increase in market value over the past year.
Market capitalization, also known as net worth in stock markets, is calculated by multiplying Castle Biosciences Inc's stock price $35.50 by its total outstanding shares 30549507 (30.55 Million). Also see Castle Biosciences Inc balance sheet assets for a full breakdown of the balance sheet.
Castle Biosciences Inc Market Cap History: 2019 to 2026
Castle Biosciences Inc's market capitalization history from 2019 to 2026. Data shows growth from $1.05 Billion to $1.08 Billion (7.34% CAGR). Also see CSTL operating cash flow for how efficiently the company converts equity into cash flow.
Index Memberships
Castle Biosciences Inc is a constituent of 3 market indices:
| Index | Total Market Cap | Weight (%) | Rank by Market Cap |
|---|---|---|---|
|
NASDAQ Health Care
IXHC
|
$2.66 Trillion | 0.04% | #257 of 976 |
|
NASDAQ Composite
IXIC
|
$41.74 Trillion | 0.00% | #955 of 3165 |
|
NASDAQ Biotechnology
NBI
|
$1.88 Trillion | 0.05% | #149 of 263 |
Weight: Castle Biosciences Inc's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.
Castle Biosciences Inc Market Cap to Earnings & Revenue Ratios Timeline
This chart shows how Castle Biosciences Inc's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance. Check today's stock price for Castle Biosciences Inc for real-time trading data and today's change.
Latest Price to Sales (P/S) Ratio
3.45x
Castle Biosciences Inc's market cap is 3.45 times its annual revenue
Latest Price to Earnings (P/E) Ratio
N/A
P/E ratio not applicable due to negative or zero earnings
What These Ratios Tell Investors:
- Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
- Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
- Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
- Industry comparison provides context for whether the company is valued higher or lower than peers.
| Year | Market Cap (USD) | Revenue (USD) | Net Income (USD) | P/S Ratio | P/E Ratio |
|---|---|---|---|---|---|
| 2019 | $1.05 Billion | $51.87 Million | $5.28 Million | 20.24x | 198.97x |
| 2020 | $2.05 Billion | $62.65 Million | -$10.28 Million | 32.74x | N/A |
| 2021 | $1.31 Billion | $94.08 Million | -$31.29 Million | 13.92x | N/A |
| 2022 | $719.14 Million | $137.04 Million | -$67.14 Million | 5.25x | N/A |
| 2023 | $659.26 Million | $219.79 Million | -$57.47 Million | 3.00x | N/A |
| 2024 | $814.14 Million | $332.07 Million | $18.25 Million | 2.45x | 44.62x |
| 2025 | $1.19 Billion | $344.23 Million | -$24.16 Million | 3.45x | N/A |
Competitor Companies of CSTL by Market Capitalization
Companies near Castle Biosciences Inc in the global market cap rankings as of September 16, 2026. Review tangible equity quality of Castle Biosciences Inc to assess the quality of the company's equity after excluding intangible assets.
Key companies related to Castle Biosciences Inc by market ranking:
- Thermo Fisher Scientific Inc (NYSE:TMO): Ranked #88 globally with a market cap of $224.59 Billion USD.
- Danaher Corporation (NYSE:DHR): Ranked #161 globally with a market cap of $147.88 Billion USD.
- WuXi AppTec Co Ltd (SHG:603259): Ranked #476 globally with a market cap of $56.70 Billion USD ( CN¥387.49 Billion CNY).
- Natera Inc (NASDAQ:NTRA): Ranked #578 globally with a market cap of $47.01 Billion USD.
| Rank | Company | Symbol | Market Cap | Price |
|---|---|---|---|---|
| #88 | Thermo Fisher Scientific Inc | NYSE:TMO | $224.59 Billion | $641.39 |
| #161 | Danaher Corporation | NYSE:DHR | $147.88 Billion | $209.36 |
| #476 | WuXi AppTec Co Ltd | SHG:603259 | $56.70 Billion | CN¥156.67 |
| #578 | Natera Inc | NASDAQ:NTRA | $47.01 Billion | $350.78 |
Castle Biosciences Inc Historical Marketcap From 2019 to 2026
Between 2019 and today, Castle Biosciences Inc's market cap moved from $1.05 Billion to $ 1.08 Billion, with a yearly change of 7.34%.
| Year | Market Cap | Change (%) |
|---|---|---|
| 2026 | $1.08 Billion | -8.74% |
| 2025 | $1.19 Billion | +45.97% |
| 2024 | $814.14 Million | +23.49% |
| 2023 | $659.26 Million | -8.33% |
| 2022 | $719.14 Million | -45.09% |
| 2021 | $1.31 Billion | -36.16% |
| 2020 | $2.05 Billion | +95.37% |
| 2019 | $1.05 Billion | -- |
End of Day Market Cap According to Different Sources
On Sep 16th, 2026 the market cap of Castle Biosciences Inc was reported to be:
| Source | Market Cap |
|---|---|
| Yahoo Finance | $1.00 Billion USD |
| MoneyControl | $1.00 Billion USD |
| MarketWatch | $1.00 Billion USD |
| marketcap.company | $1.00 Billion USD |
| Reuters | $1.00 Billion USD |
Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.
About Castle Biosciences Inc
Castle Biosciences, Inc., a molecular diagnostics company, provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), atopic dermatitis (AD), and uveal melanoma. The company offers DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test that predicts the likelihood of a positive sentinel lymph node and the risk of metastasis fo… Read more