Castle Biosciences Inc (CSTL)

30.83 +2.97%

Castle Biosciences Inc (CSTL) is currently trading at $30.83. This represents a gain of 2.97% from the previous session. With a market capitalization of $0.90B, CSTL is a key component of the Health Care sector. Investors looking to trade CSTL should compare margin rates and options platforms to optimize their portfolio management.

Broker Promotion
Claim Your $300 Cash Bonus → T&Cs Apply. Trade CSTL commission-free.
Trading Platform Comparison
Moomoo
  • Min Deposit: $0
  • Commissions: $0
  • Fractional Shares: ✅
  • Options: ✅
  • Notes: Good for small traders
IBKR
  • Min Deposit: $0
  • Commissions: $0–$0.005/share
  • Fractional Shares: ✅
  • Options: ✅
  • Notes: Professional-level tools
Ameritrade
  • Min Deposit: $0
  • Commissions: $0
  • Fractional Shares: ✅
  • Options: ✅
  • Notes: Strong research tools
Webull
  • Min Deposit: $0
  • Commissions: $0
  • Fractional Shares: ✅
  • Options: ✅
  • Notes: Easy mobile app
AI Market Sentiment

As of today, Castle Biosciences Inc (CSTL) shows a bullish trend. Analysts are watching the 31.11 level closely.

Fundamentals
Mkt Cap0.90B
P/E Ratio0.0000
Volume401,187
Others Watching (By Market Cap)
DNTH
Dianthus Therap $51.87
-1.87% RARE
Ultragenyx Phar $22.91
+0.70% SLNO
Soleno Therapeu $41.01
+4.72% PAHC
Phibro Animal H $53.10
+3.19% ATEC
Alphatec Holdin $14.04
+0.79%
60-Day Technical Chart
Advanced Charting

Need more indicators for CSTL? Use the world's #1 platform.

Open CSTL on TradingView →
Charting Platforms
TradingView

Advanced charts & indicators, web & mobile

StockCharts

Technical analysis charts with overlays & indicators

BarCharts

Market data, charts, and technical signals

Finviz

Visual stock charts & heatmaps

Yahoo Finance Charts

Basic interactive charts with indicators

Side-by-Side: Stocks Near $31
Metric CSTL
+2.97% 		T
-1.69% 		CMCSA
-2.59% 		SMCI
+7.87%
Price $30.83 $27.87 $30.79 $33.60
Mkt Cap $0.90B $195.11B $111.10B $20.22B
- View → View → View →
Latest Headlines
Castle Biosciences (NASDAQ:CSTL) Stock Price Down 7% - Should You Sell? MarketBeat • Feb 19, 2026 New skin test steers severe eczema patients to faster JAK drug relief Stock Titan • Feb 19, 2026 Castle Biosciences to Release Fourth Quarter and Full-Year GlobeNewswire • Feb 5, 2026 Castle Biosciences (CSTL) Loses 16.8% in 4 Weeks, Here's Why a Trend Reversal May be Around the Corner Yahoo Finance • Feb 9, 2026 Castle Biosciences, Inc.'s (NASDAQ:CSTL) 44% Share Price Surge Not Quite Adding Up simplywall.st • Nov 6, 2025
● Gemini Agentic AI Analyst Insight for CSTL
Market Education
View All Articles →
External Research