Castle Biosciences
Why Robinhood?
Robinhood gives you the tools you need to put your money in motion. You can buy or sell CSTL and other ETFs, options, and stocks.About CSTL
Castle Biosciences, Inc. is a molecular diagnostics company, which offers innovative test solutions to aid clinicians in the diagnosis and treatment of dermatologic cancers, barrett’s esophagus, uveal melanoma, and in the treatment of mental health conditions. The firm offers DecisionDx-Melanoma, a proprietary multi-gene expression profile (GEP) test that predicts the risk of metastasis and recurrence for patients diagnosed with invasive cutaneous melanoma.
CSTL Key Statistics
Stock Snapshot
With a market cap of 967.8M, Castle Biosciences(CSTL) trades at $31.60. The stock has a price-to-earnings ratio of -46.85.
As of 2026-08-07, Castle Biosciences(CSTL) stock has fluctuated between $30.88 and $31.75. The current price stands at $31.60, placing the stock +2.3% above today's low and -0.5% off the high.
Castle Biosciences(CSTL) shares are trading with a volume of 73.48K, against a daily average of 669.4K.
During the past year, Castle Biosciences(CSTL) stock moved between $17.72 at its lowest and $44.28 at its peak.
During the past year, Castle Biosciences(CSTL) stock moved between $17.72 at its lowest and $44.28 at its peak.
CSTL News
...
Analyst ratings
100%
of 9 ratingsPeople also own
Similar Marketcap
This list is generated by looking at the six larger and six smaller companies by market cap in relation to this company.
Popular Stocks
This list is generated by looking at the top 100 stocks and ETFs most commonly held by Robinhood customers and showing a random subset
Newly Listed
This list is generated by showing companies that recently went public.