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Castle Biosciences, Inc. (CSTL)

Healthcare | Diagnostics & Research | Friendswood, United States | NasdaqGM
25.05 USD +0.49 (1.995%) ⇧ (April 17, 2026, 4 p.m. EDT)
After hours: 25.05

Short-term: ★★☆☆☆ | Long-term: ★☆☆☆☆ | Dividends: ☆☆☆☆☆
Hot Take | April 11, 2026, 3:33 p.m. EDT

Castle Biosciences (CSTL) is currently in a consolidation phase with mixed signals from both fundamentals and options activity. The recent price action shows a pullback from recent highs, with a current price of $23.13, which is near the 52-week low of $14.59. The stock has negative earnings and profit margins, indicating financial challenges. While the stock has a strong buy recommendation from analysts, the lack of dividend history and negative fundamentals suggest caution for long-term investors. Short-term traders might consider the recent dip as a potential buying opportunity, especially with options activity showing some bullish sentiment, but the overall forecast model indicates low reliability in short-term price predictions. Long-term investors should be wary due to the company's financial health and the lack of consistent dividends.

Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
AutoARIMA ✓0.415699
AutoETS0.415699
MSTL0.416382
AutoTheta0.420545

Forecast horizon: 45 days | Selected: AutoARIMA

Forecast Reliability
Score 48%
H-stat 4.77
Ljung-Box p 0.000
Jarque-Bera p 0.074
Excess Kurtosis -0.47
Attribute Value
Sector Healthcare
Debt to Equity Ratio 7.861
Revenue per Share 11.876
Market Cap 758,913,856
Forward P/E -46.18
Beta 1.19
Profit Margins -7.02%
Website https://castlebiosciences.com

As of April 11, 2026, 3:33 p.m. EDT: Options activity suggests a mixed sentiment. Calls show increased positioning in out-of-the-money strikes, particularly around 25.0 and higher, indicating potential bullish sentiment or speculation on upward movement. However, puts show significant activity in in-the-money strikes, especially around 30.0 and 35.0, suggesting some bearish sentiment or protective strategies. The overall volatility is low, with IV ranging from 0.7 to 15.57, indicating limited market expectation of large price swings. The presence of higher strike calls with increased volume and open interest could signal speculative interest in a potential upward move, while the puts suggest caution or hedging against downside.


Info Dump

Attribute Value
52 Week Change 0.18495739
Address1 1,500 W. Parkwood Ave
Address2 Suite 400
All Time High 107.69
All Time Low 9.26
Ask 25.12
Ask Size 1
Audit Risk 3
Average Analyst Rating 1.0 - Strong Buy
Average Daily Volume10 Day 269,590
Average Daily Volume3 Month 384,304
Average Volume 384,304
Average Volume10Days 269,590
Beta 1.185
Bid 24.98
Bid Size 1
Board Risk 5
Book Value 15.862
City Friendswood
Compensation As Of Epoch Date 1,767,139,200
Compensation Risk 7
Country United States
Crypto Tradeable 0
Currency USD
Current Price 25.05
Current Ratio 5.258
Custom Price Alert Confidence HIGH
Date Short Interest 1,774,915,200
Day High 25.365
Day Low 24.835
Debt To Equity 7.861
Display Name Castle Biosciences
Earnings Call Timestamp End 1,778,099,400
Earnings Call Timestamp Start 1,778,099,400
Earnings Timestamp 1,778,097,600
Earnings Timestamp End 1,778,097,600
Earnings Timestamp Start 1,778,097,600
Ebitda -2,039,000
Ebitda Margins -0.00592
Enterprise To Ebitda -236.526
Enterprise To Revenue 1.401
Enterprise Value 482,276,512
Eps Current Year -1.1725
Eps Forward -0.5425
Eps Trailing Twelve Months -0.83
Esg Populated 0
Exchange NGM
Exchange Data Delayed By 0
Exchange Timezone Name America/New_York
Exchange Timezone Short Name EDT
Fifty Day Average 27.3881
Fifty Day Average Change -2.3381004
Fifty Day Average Change Percent -0.08536921
Fifty Two Week Change Percent 18.495739
Fifty Two Week High 44.28
Fifty Two Week High Change -19.23
Fifty Two Week High Change Percent -0.43428186
Fifty Two Week Low 14.59
Fifty Two Week Low Change 10.459999
Fifty Two Week Low Change Percent 0.7169293
Fifty Two Week Range 14.59 - 44.28
Financial Currency USD
First Trade Date Milliseconds 1,564,061,400,000
Float Shares 25,258,139
Forward Eps -0.5425
Forward P E -46.175114
Free Cashflow 41,212,500
Full Exchange Name NasdaqGM
Full Time Employees 883
Gmt Off Set Milliseconds -14,400,000
Governance Epoch Date 1,775,001,600
Gross Margins 0.79366
Gross Profits 273,200,992
Has Pre Post Market Data 1
Held Percent Insiders 0.02379
Held Percent Institutions 0.92253
Implied Shares Outstanding 30,295,965
Industry Diagnostics & Research
Industry Disp Diagnostics & Research
Industry Key diagnostics-research
Is Earnings Date Estimate 0
Language en-US
Last Fiscal Year End 1,767,139,200
Long Business Summary Castle Biosciences, Inc., a molecular diagnostics company, provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), atopic dermatitis (AD), and uveal melanoma. The company offers DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test that predicts the likelihood of a positive sentinel lymph node and the risk of metastasis for patients with invasive cutaneous melanoma; TissueCypher, a risk stratification spatialomics test to predict future development of high-grade dysplasia and/or esophageal cancer in patients with non-dysplastic, indefinite dysplasia, and low-grade dysplasia BE; AdvanceAD-Tx, a non-invasive GEP test which is designed to guide systemic treatment selection for patients aged 12 years and older with moderateto-severe AD; DecisionDx-SCC, a GEP test for cutaneous squamous cell carcinoma; and MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions. It also provides DecisionDx-UM, a risk stratification GEP test that predicts the risk of metastasis for patients with uveal melanoma. The company offers its products to dermatology and gastroenterology markets. The company was incorporated in 2007 and is headquartered in Friendswood, Texas.
Long Name Castle Biosciences, Inc.
Market us_market
Market Cap 758,913,856
Market State CLOSED
Max Age 86,400
Message Board Id finmb_60295846
Most Recent Quarter 1,767,139,200
Net Income To Common -24,158,000
Next Fiscal Year End 1,798,675,200
Non Diluted Market Cap 759,519,842
Number Of Analyst Opinions 8
Open 25.14
Operating Cashflow 64,347,000
Operating Margins -0.04398
Overall Risk 6
Payout Ratio 0.0
Phone 866 788 9007
Post Market Change 0.0
Post Market Change Percent 0.0
Post Market Price 25.05
Post Market Time 1,776,456,604
Previous Close 24.56
Price Eps Current Year -21.364605
Price Hint 2
Price To Book 1.5792459
Price To Sales Trailing12 Months 2.2046773
Profit Margins -0.07018
Quick Ratio 5.009
Quote Source Name Nasdaq Real Time Price
Quote Type EQUITY
Recommendation Key strong_buy
Recommendation Mean 1.0
Region US
Regular Market Change 0.49
Regular Market Change Percent 1.99511
Regular Market Day High 25.365
Regular Market Day Low 24.835
Regular Market Day Range 24.835 - 25.365
Regular Market Open 25.14
Regular Market Previous Close 24.56
Regular Market Price 25.05
Regular Market Time 1,776,456,001
Regular Market Volume 204,025
Return On Assets -0.02558
Return On Equity -0.05214
Revenue Growth 0.008
Revenue Per Share 11.876
Sand P52 Week Change 0.38150132
Sector Healthcare
Sector Disp Healthcare
Sector Key healthcare
Share Holder Rights Risk 8
Shares Outstanding 30,295,965
Shares Percent Shares Out 0.0507
Shares Short 1,534,400
Shares Short Previous Month Date 1,772,150,400
Shares Short Prior Month 1,394,294
Short Name Castle Biosciences, Inc.
Short Percent Of Float 0.0519
Short Ratio 4.47
Source Interval 15
State TX
Symbol CSTL
Target High Price 52.0
Target Low Price 44.0
Target Mean Price 48.5
Target Median Price 50.0
Total Cash 299,504,992
Total Cash Per Share 10.074
Total Debt 37,015,000
Total Revenue 344,228,992
Tradeable 0
Trailing Annual Dividend Rate 0.0
Trailing Annual Dividend Yield 0.0
Trailing Eps -0.83
Trailing Peg Ratio None
Triggerable 1
Two Hundred Day Average 28.17105
Two Hundred Day Average Change -3.12105
Two Hundred Day Average Change Percent -0.11078927
Type Disp Equity
Volume 204,025
Website https://castlebiosciences.com
Zip 77,546