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    C

    Castle Biosciences Inc (CSTL)

    Official site

    HEALTHCARE • DIAGNOSTICS & RESEARCH • NASDAQ

    $33.80
    +0.69 (+2.08%)

    Market Cap: $1.01B

    Last updated: Oct 16, 2026 at 1:55 PM ET

    Earnings

    Performance (10Y)

    Beat Rate
    79%(23/29)
    Avg Surprise
    +54.87%
    Streak
    5 Q

    Upcoming Estimates

    Period ending Sep 30, 2026
    EPS Consensus$-0.35
    Range$-0.42 - $-0.25
    9 analysts
    EPS Revisions
    1
    0
    7d
    1
    0
    30d
    EPS Estimate DriftChange to current
    90d ago$-0.30-19.4%
    60d ago$-0.30-17.7%
    30d ago$-0.36+1.0%
    7d ago$-0.36+1.0%
    Current$-0.35
    Revenue Consensus
    $92M
    Range$90M - $93M
    8 analysts
    Period ending Dec 31, 2026
    EPS Consensus$-0.02
    Range$-0.13 - $0.19
    9 analysts
    Revenue Consensus
    $115M
    Range$114M - $116M
    9 analysts
    PeriodReportedEst.SurpriseB/MYoY
    Dec 26EST
    		-$-0.02---
    Sep 26EST
    		-$-0.35---
    Jun 26
    Reported Jul 30
    		$-0.07N/A+84.09%Beat-146.7%
    Mar 26
    Reported May 6
    		$-0.49$-0.49+0.00%Beat+45.6%
    Dec 25
    Reported Feb 26
    		$-0.08N/A+65.22%Beat-125.0%
    Sep 25
    Reported Nov 3
    		$-0.02N/A+96.08%Beat-125.0%
    Jun 25
    Reported Aug 4
    		$0.15N/A+130.00%Beat-51.6%
    Mar 25
    Reported May 5
    		$-0.90$-0.07-1185.71%Miss-900.0%
    Dec 24
    Reported Feb 27
    		$0.32$0.04+700.00%Beat+420.0%
    Sep 24
    Reported Nov 4
    		$0.08$0.01+700.00%Beat+130.8%
    Jun 24
    Reported Aug 5
    		$0.31$-0.24+229.17%Beat+144.3%
    Mar 24
    Reported May 2
    		$-0.09N/A+70.97%Beat+91.8%
    Dec 23
    Reported Feb 28
    		$-0.10N/A+81.48%Beat+87.2%
    Sep 23
    Reported Nov 2
    		$-0.26N/A+64.38%Beat+66.2%
    Jun 23
    Reported Aug 2
    		$-0.70$-0.91+23.08%Beat-1066.7%
    Mar 23
    Reported May 3
    		$-1.10$-0.89-23.60%Miss-13.4%
    Dec 22
    Reported Feb 28
    		$-0.78$-0.84+7.14%Beat-212.0%
    Sep 22
    Reported Nov 2
    		$-0.77$-0.97+20.62%Beat-63.8%
    Jun 22
    Reported Aug 8
    		$-0.06N/A+92.50%Beat+82.9%
    Mar 22
    Reported May 9
    		$-0.97$-0.74-31.08%Miss-470.6%
    Dec 21
    Reported Feb 28
    		$-0.25$-0.47+46.81%Beat-47.1%
    Sep 21
    Reported Nov 8
    		$-0.47$-0.37-27.03%Miss-104.3%
    Jun 21
    Reported Aug 9
    		$-0.35$-0.39+10.26%Beat-337.5%
    Mar 21
    Reported May 10
    		$-0.17$-0.18+5.56%Beat-666.7%
    Dec 20
    Reported Mar 8
    		$-0.17$-0.12-41.67%Miss-254.5%
    Sep 20
    Reported Nov 9
    		$-0.23$-0.15-53.33%Miss-1250.0%
    Jun 20
    Reported Aug 10
    		$-0.08N/A+81.82%Beat+92.4%
    Mar 20
    Reported May 11
    		$0.03$-0.05+160.00%Beat+102.5%
    Dec 19
    Reported Mar 10
    		$0.11$-0.20+155.00%Beat-
    Sep 19
    Reported Nov 11
    		$0.02N/A+106.67%Beat-
    Jun 19
    Reported Jul 26
    		$-1.05$-1.36+22.79%Beat-
    Mar 19
    Reported May 29
    		$-1.22$0.00N/AMiss-

    Key Metrics

    Valuation
    P/E Ratio-51.21EV/EBITDAN/A
    Price/FCF-2101.20xFCF Yield-0.05%
    Profitability
    Profit Margin-5.43%Operating Margin-2.96%
    ROE-4.20%ROIC-6.31%
    Financial Health
    Debt/Equity0.02xInterest Coverage15.03x
    Current Ratio6.04xQuick Ratio5.85x
    Trading Statistics
    Beta0.94Avg Volume383.88K
    52-Week High$44.2852-Week Low$17.72

    Technical Indicators Dashboard

    Moving Averages

    SMA 10$33.92
    SMA 20$34.60
    SMA 50$33.51
    SMA 200$28.81
    EMA 10$33.81
    EMA 20$34.04
    EMA 50$32.68
    EMA 200$28.77

    MACD

    Line: -0.02Signal: 0.33Hist: -0.34

    ADX

    ADX: 19.1+DI: 18.1-DI: 18.9

    Aroon & PSAR

    Aroon Up72.0
    Aroon DownN/A
    PSAR$36.14

    Bollinger Bands

    Upper Band$36.89
    Lower Band$32.30
    %B Position1327%(Upper)
    Band Width0.33

    RSI (14-Day)

    Neutral
    49.5

    Momentum Oscillators

    Stoch %K17.9
    Stoch %D16.4
    Williams %R-72.7
    ROC (10d)-4.1%
    Momentum-1.46
    CCI (20d)-85.2
    MFI (14d)61.4

    Volatility Measures

    ATR (14d)$1.63(4.8%)
    StdDev (20d)1.15
    Hist Vol46.0%(High)

    Volume Flow

    VWAP$33.43
    OBV18.9M
    AD Line4.9M
    CMF (20d)0.025

    Volume Metrics

    Avg Vol (20d)376.1K
    Vol Ratio1.0x
    VWMA (20d)$34.68

    Pivot Points

    R3$35.06
    R2$34.42
    R1$33.76
    Pivot Point$33.12
    S1$32.46
    S2$31.82
    S3$31.16

    Advanced Oscillators

    TSI-0.13
    Ultimate Osc55.1
    KST19.02

    Financial Data

    QuarterJun 2026Mar 2026Dec 2025Sep 2025Jun 2025Mar 2025Dec 2024Sep 2024Jun 2024Mar 2024Dec 2023Sep 2023
    Total Revenue$103.55M$83.68M$87.01M$83.04M$86.19M$87.99M$86.31M$85.78M$87.00M$72.97M$66.12M$61.49M
    Cost of Revenue$23.70M$20.53M$18.32M$18.70M$17.63M$16.38M$16.18M$15.61M$14.52M$13.89M$12.42M$11.32M
    Gross Profit$79.85M$63.15M$68.69M$64.34M$68.56M$71.61M$70.13M$70.17M$72.48M$59.08M$53.70M$50.17M
    Operating Expenses$82.92M$81.55M$72.52M$71.14M$72.81M$99.53M$66.08M$65.09M$67.47M$64.55M$59.35M$59.81M
    R&D$14.54M$14.43M$13.52M$12.96M$12.79M$12.59M$11.77M$12.32M$14.14M$13.81M$12.99M$12.92M
    SG&A$66.12M$64.90M$56.73M$55.91M$58.06M$58.62M$49.97M$50.50M$51.09M$48.49M$44.09M$44.62M
    Operating Income$-3,070,000$-18,407,000$-3,827,000$-6,804,000$-4,251,000$-27,928,000$4.05M$5.08M$5.01M$-5,471,000$-5,658,000$-9,640,000
    Interest Income$1.73M$2.54M$801,000$6.39M$4.13M$3.10M$3.93M$3.40M$3.14M$3.00M$3.12M$2.77M
    Interest Expense$193,000$134,000$24,000$24,000$21,000$17,000$92,000$201,000$270,000$14,000$2,000$2,000
    Income Before Tax$-1,690,000$-14,413,000$-2,714,000$-386,000$-143,000$-26,271,000$7.88M$8.28M$7.89M$-2,489,000$-2,541,000$-6,873,000
    Income Tax Expense$370,000$109,000$-382,000$115,000$-4,666,000$-423,000$-1,705,000$6.01M$-1,034,000$45,000$39,000$32,000
    Net Income$-2,060,000$-14,522,000$-2,332,000$-501,000$4.52M$-25,848,000$9.59M$2.27M$8.92M$-2,534,000$-2,580,000$-6,905,000
    EBITDA$455,000$-13,349,000$-422,000$-3,845,000$-2,008,000$-1,024,000$8.21M$6.97M$6.64M$-3,830,000$-4,074,000$-8,035,000
    EBIT$-3,223,000$-16,824,000$-3,491,000$-6,756,000$-4,251,000$-29,353,000$4.05M$5.08M$5.01M$-5,471,000$-5,658,000$-9,640,000
    * Some calculated fields are derived from available data when not provided by source

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    Government Contracts

    Gov Obligations (TTM)
    -$135000
    Gov Obligations / Revenue
    0.0%
    Obligations YoY
    N/A
    Active Awards
    2
    New Awards (TTM)
    0
    Avg Remaining Term
    N/A

    Federal contract obligations are bookings recorded by the awarding agency, not recognized revenue. They can exceed 100% of revenue and can be negative when contracts are de-obligated. Source: USAspending.gov prime awards, data through Jul 31, 2026.

    News

    Castle Biosciences to Release Third Quarter 2026 Financial Results and Host Webcast on Thursday, Nov. 5, 2026

    Castle Biosciences, Inc. (Nasdaq: CSTL) announced it will release its third quarter 2026 financial results after market close on Thursday, November 5...

    Yahoo Finance•10/15/26•Neutral

    Form 4 Castle Biosciences Inc: Tobin W. Juvenal (Chief Commercial Officer) For: 12 October

    This article reports on a Form 4 filing for Castle Biosciences Inc. involving Tobin W. Juvenal, the Chief Commercial Officer. The transaction date is noted as October 12. The brief article, published by Investing.com...

    Investing.com UK•10/15/26•Neutral

    Castle Biosciences (CSTL) Chief Commercial Officer Tobin Juvenal Sells 3,288 Shares

    Tobin Juvenal, Chief Commercial Officer at Castle Biosciences (CSTL), sold 3,288 shares of the company's common stock...

    GuruFocus•10/14/26•Bearish

    Castle Biosciences (NASDAQ:CSTL) Insider Tobin Juvenal Sells 3,288 Shares of Stock

    Castle Biosciences insider Tobin Juvenal sold 3,288 shares of the company's stock for approximately $110,608, reducing his position by 6.32%. The transaction was part of a pre-arranged Rule 10b5-1 trading plan. Despite...

    MarketBeat•10/14/26•Somewhat-Bullish

    What Castle Biosciences (CSTL)'s Barretts Test Data Means For Shareholders

    Castle Biosciences reported new clinical data for its TissueCypher Barrett's Esophagus test, demonstrating its ability to provide molecular risk information beyond standard biopsy findings and influence treatment...

    Simply Wall Street•10/14/26•Somewhat-Bullish

    CSTL Valuation and Fair Value

    P/E
    -51.2x
    P/FCF
    -2101.2x
    P/B
    2.2x
    See GNG's fair value

    CSTL Profitability: Margins, ROIC and FCF

    Gross margin
    77.3%
    Operating margin
    -3.0%
    Net margin
    -5.4%
    ROIC
    -6.3%
    ROE
    -4.2%
    FCF margin
    -0.1%
    FCF yield
    -0.0%

    CSTL Competitors

    CompanyTicker
    Harrow Health IncHROW
    Ventyx Biosciences IncVTYX
    Opko Health IncOPK
    Savara IncSVRA
    Integra LifeSciences HoldingsIART
    MannKind CorpMNKD
    HealthStream IncHSTM
    Quidel CorporationQDEL

    Sector: Healthcare

    CSTL Analyst Ratings

    Consensus
    Buy
    Analysts
    9
    Strong Buy
    0
    Buy
    9
    Hold
    0
    Sell
    0
    Strong Sell
    0

    CSTL Bull Case vs Bear Case

    Bull case

    • CSTL beat EPS estimates in 75.0% of its last 8 reported quarters.
    • CSTL grew quarterly revenue 20.1% year over year.
    • 100.0% of CSTL's analyst ratings are Buy or Strong Buy.

    Bear case

    • CSTL has a -5.4% net profit margin.

    CSTL Earnings: Beat Rate and Next Report

    Beat rate
    6 of 8 quarters (75.0%)
    Average surprise
    73.7%
    EPS estimate (fiscal period ending Sep 30, 2026)
    $-0.35
    Estimate revisions (30 days, fiscal period ending Sep 30, 2026)
    1 up, 0 down

    Frequently Asked Questions About CSTL

    Does CSTL pay dividends?

    Castle Biosciences Inc (CSTL) does not currently pay a regular dividend.

    What is CSTL's market cap?

    Castle Biosciences Inc (CSTL) has a market capitalization of $1.01B with a current stock price of $33.80.

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