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Castle Biosciences, Inc. (CSTL)
37.16  -1.35 (-3.51%)    10-30 16:00
Open: 38.175
High: 38.32
Volume: 334,260
  
Pre. Close: 38.51
Low: 36.73
Market Cap: 1,135(M)
Technical analysis
2026-10-30 4:34:45 PM
Short term     
Mid term     
Targets 6-month :  45.23 1-year :  52.82
Resists First :  38.72 Second :  45.23
Pivot price 34.04
Supports First :  34.36 Second :  31.67
MAs MA(5) :  36.02 MA(20) :  34.08
MA(100) :  29.89 MA(250) :  30.35
MACD MACD :  0.6 Signal :  0.1
%K %D K(14,3) :  87.4 D(3) :  82.9
RSI RSI(14): 60.7
52-week High :  44.27 Low :  17.72
Price, MAs and Bollinger Bands

Price has closed above its short-term moving average. Short-term moving average is currently above mid-term; and above long-term moving average. From the relationship between price and moving averages: This stock is BULLISH in short-term; and BULLISH in mid-long term.
[ CSTL ] has closed below upper band by 8.2%. Bollinger Bands are 44% wider than normal. The large width of the bands suggest high volatility as compared to its normal range. The bands have been in this wide range for 0 days. This is a sign that the current trend might continue.

Stock Price Prediction
If tomorrow: Open lower Open higher
High: 38.35 - 38.54 38.54 - 38.67
Low: 36.23 - 36.48 36.48 - 36.64
Close: 36.78 - 37.16 37.16 - 37.4
Company Description

Castle Biosciences, Inc. functions as a commercial-stage diagnostics firm, with its primary objective being the provision of both diagnostic and prognostic testing services, specifically targeting various dermatological cancers. Their flagship product, DecisionDx-Melanoma, represents an advanced multi-gene expression profile (GEP) assay engineered to assess the probability of metastasis in patients afflicted with invasive cutaneous melanoma. In addition to their leading solution, the company has created several other specialized, proprietary tests. Among these is DecisionDx-UM, a GEP test tailored to forecast the risk of metastasis for individuals with uveal melanoma, a less common malignancy of the eye. Another key offering is DecisionDx-SCC, a distinctive 40-gene expression profile test that utilizes a patient's unique tumor biology to predict their specific risk of squamous cell carcinoma metastasis, particularly for those presenting with recognized risk factors. Moreover, they offer DecisionDx DiffDx-Melanoma and myPath Melanoma, both proprietary GEP tests employed to assist in the accurate diagnosis of ambiguous pigmented lesions. These specialized testing services are provided by Castle Biosciences to patients predominantly through their healthcare providers. The organization commenced operations in 2007 and maintains its corporate headquarters in Friendswood, Texas.

Headline News

Sun, 01 Nov 2026
Castle Biosciences (NASDAQ:CSTL) Stock Rating Raised to Buy at Wall Street Zen - MarketBeat

Fri, 30 Oct 2026
Castle Biosciences (CSTL) Chief Commercial Officer Tobin Juvenal Sells 6,578 Shares - GuruFocus

Fri, 30 Oct 2026
Under a preset trading plan, Castle Biosciences (CSTL) executive sells 6,578 shares. - Stock Titan

Wed, 28 Oct 2026
Castle Biosciences (CSTL) Chief Commercial Officer Tobin Juvenal Sells 3,288 Shares - GuruFocus

Wed, 28 Oct 2026
Under a trading plan, Castle Biosciences (CSTL) officer sells 3,288 shares at an average $33.08. - Stock Titan

Wed, 28 Oct 2026
Castle Biosciences to Participate in Upcoming Investor Conferences - Yahoo Finance

Financial Analysis
Price to Book Value:
P/BV, a ratio used to compare book value to its current market price, to gauge whether a stock is valued properly.
Outperform
Price to Earnings:
PE, the ratio for valuing a company that measures its current share price relative to its earnings per share (EPS).
Underperform
Discounted cash flow:
DCF, a valuation method used to estimate the value of an investment based on its expected future cash flows.
Outperform
Return on Assets:
ROA, indicates how profitable a company is in relation to its total assets, how efficiently uses assets to generate a profit.
Underperform
Return on Equity:
ROE, a measure of financial performance calculated by dividing net income by equity. a gauge of profitability and efficiency.
Underperform
Debt to Equity:
evaluate financial leverage, reflects the ability of equity to cover outstanding debts in the event of a business downturn.
Neutral
Stock Basics & Statistics
Exchange:
NASDAQ
Sector:
Healthcare
Industry:
Medical - Diagnostics & Research
Shares Out 31 (M)
Shares Float 27 (M)
Held by Insiders 2.3 (%)
Held by Institutions 91 (%)
Shares Short 2,000 (K)
Shares Short P.Month 1,980 (K)
Stock Financials
EPS -0.64
EPS Est Next Qtrly 0
EPS Est This Year 0
EPS Est Next Year 0
Book Value (p.s.) 15.4
Profit Margin -5.5 %
Operating Margin -3 %
Return on Assets (ttm) -1.4 %
Return on Equity (ttm) -4.2 %
Qtrly Rev. Growth 20.1 %
Gross Profit (p.s.) 9.03
Sales Per Share 11.69
EBITDA (p.s.) -0.55
Qtrly Earnings Growth 0 %
Operating Cash Flow 43 (M)
Levered Free Cash Flow -7 (M)
Stock Valuations
PE Ratio -58.04
PEG Ratio 0
Price to Book value 2.41
Price to Sales 3.17
Price to Cash Flow 26.61
Stock Dividends
Dividend 0
Forward Dividend 0
Dividend Yield 0%
Dividend Pay Date Invalid DateTime.
Ex-Dividend Date Invalid DateTime.

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