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Castle Biosciences, Inc. Common Stock (CSTL) Stock

NASDAQ · CSTL
Trade CSTL

Key stats

Market cap
$1.05B
Price / Earnings ratio
-46.1x
EPS (TTM)
-$0.76
Volume
Loading
52-week high
$44.28
52-week low
$17.72

Source: third-party data provider, as of November 13, 2026

Compare with CSTL

Recent news

Zacks Investment Research

Castle Biosciences, Inc. (CSTL) Is Up 15.46% in One Week: What You Should Know

CSTLAugust 28, 2026
Zacks Investment Research

Does Castle Biosciences (CSTL) Have the Potential to Rally 31.46% as Wall Street Analysts Expect?

CSTLAugust 25, 2026
MarketBeat

Castle Biosciences Raises Outlook as Melanoma, TissueCypher Tests Gain Traction

CSTLAugust 13, 2026
Zacks Investment Research

Castle Biosciences, Inc. (CSTL) Reports Q2 Loss, Tops Revenue Estimates

CSTLJuly 30, 2026

Technical indicators

RSI 14
48.53
MACD 12/26/9
0.10
EMA 9 of MACD
0.25
MACD histogram
-0.16
SMA 50
$34.30
Price below SMA 50
EMA 50
$33.64
Price above EMA 50
SMA 200
$28.24
Price above SMA 200
EMA 200
$31.39
Price above EMA 200

Calculated by Gotrade from daily closing prices, as of November 11, 2026. Technical data, not a recommendation.

Analyst ratings

Analyst consensus: Buy

Based on 3 analyst ratings

Strong Sell0
Sell0
Hold0
Buy3
Strong Buy0

Third-party analyst opinion, not a recommendation from Gotrade.

Financials

Performance

Revenue
Net income
Net margin %
2021
2022
2023
2024
2025
413M273M136M0

Debt & Balance Sheet

Total assets
Total liabilities
2021
2022
2023
2024
2025
694M458M229M0

Revenue to Profit

2025
$344.2M
Revenue
$0.0
Cost of revenue
$273.2M
Gross profit
$0.0
Operating expenses
$-24.2M
Net income

Earnings

No data available

Source: third-party data provider

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FAQ

Buying Castle Biosciences, Inc. Common Stock (CSTL) stock is now easy and instant through the Gotrade app.
  1. Download the Gotrade app from the App Store or Google Play.
  2. Create an account and verify your identity.
  3. Make a deposit.
  4. Search for the code "CSTL", then tap "Trade".
  5. Tap the "Buy" button.
  6. Enter the amount you want to buy. You have two options:
    1. Buy CSTL by number of shares.
    2. Buy fractional shares in dollars, starting from $1.
  7. Swipe up to confirm your order, and you're done!
On Gotrade, you don't have to buy a full share. With fractional shares, you can start investing in Castle Biosciences, Inc. Common Stock from just $1. A small budget shouldn't stop you from building a US stock portfolio.
At the moment, Castle Biosciences, Inc. Common Stock (CSTL) does not pay dividends because it focuses on reinvesting profits for company growth (a growth stock). However, you can still potentially earn profit from share price increases (capital gains). Track CSTL's performance via the price chart in the Gotrade app.
Gotrade is the trading name of Gotrade Securities Inc., which is registered with and supervised by the Labuan Financial Services Authority (LFSA).
You can place an order any time. It goes through when the US market (NYSE/NASDAQ) opens: 9:30 AM to 4:00 PM New York time, Monday to Friday. Pre-market and after-hours trading are open too.
The market is closed on US public holidays. The Gotrade app shows whether the market is open.
There's no single perfect answer, but common approaches include:
  • Compare valuation (e.g., P/E, P/S) against historical averages or competitors.
  • Review revenue and earnings growth.
  • Check margins and cash flow.
  • Evaluate business outlook and the company's position within its industry.
You can combine fundamental analysis with an investing strategy that matches your risk profile. All of the information above can be viewed directly in the Gotrade app.
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