Castle Biosciences, Inc. Common Stock

CSTLNASDAQUSD
35.65 USD
0.15 (0.42%)🟢LIVE (AS OF 10:50 AM EDT)
🟢Market: OPEN

Castle Biosciences, Inc. Common Stock (CSTL) is currently trading at $35.65. The technical outlook is "Strong Buy" and the fundamental picture shows "Neutral". This is driven by a robust Altman Z-Score, a weak Piotroski F-Score of 2/9, negative Return on Equity, a bullish Golden Cross on the moving averages and bullish moving average alignment. Valuation metrics suggest CSTL is trading at a discount to its peers, earning an "Attractively Valued" rating.

Technical & fundamental data as of Sep 15, 2026.

Open?$35.50
High?$36.82
Low?$35.50
Prev. Close?$35.50
Volume?114.4K
Avg. Volume?366.9K
VWAP?$36.18
Rel. Volume?0.31x
Bid / Ask
Bid?$35.58 × 100
Ask?$35.89 × 100
Spread?$0.31
Midpoint?$35.74
Valuation & Ratios
Market Cap?1.1B
Shares Out?30.5M
Float?28.6M
Float %?93.5%
P/E Ratio?N/A
P/B Ratio?2.31
EPS?-$0.64
Dividend?0.00%
Ex-Dividend?N/A
News
Profile
Castle Biosciences Inc is a molecular diagnostics company. The group provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), and uveal melanoma. The product portfolio of the company includes DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test; DecisionDx-SCC, a risk stratification test for cutaneous squamous cell carcinoma; MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions; and TissueCypher, a test to predict future development of progression of high-grade dysplasia and/or esophageal cancer. The company derives revenues through the delivery of test reports for its molecular diagnostic tests.
Employees
1.0K
Market Cap
1.1B
Industry
SERVICES-MEDICAL LABORATORIES
Listed
2019-07-25
Address
1500 W. PARKWOOD AVE.
FRIENDSWOOD, TX 77546
Phone: 866-788-9007
Technical OutlookStrong Buy
Strong SellNeutralStrong Buy
Long-Term (Tide)? Bullish(+2/3)
Medium-Term (Wave)? Bullish(+1/3)
Short-Term (Ripple)? Bullish(+2/3)
MA Alignment?Golden Alignment
Full Technical Analysis →
Fundamental OutlookNeutral
Strong SellNeutralStrong Buy
F-Score?
12
Z-Score?
100
Momentum?
14
Short Sent.?
64
Piotroski F-Score?2/9Weak
Altman Z-Score?14.04Safe
Confidence?51%Low
Full Fundamental Analysis →
Short InterestHigh
Short % of Float?6.92%Elevated
Short Interest?2.0M
Days to Cover?5.1
Free Float28.6M
Avg Daily Volume391.4K
Settlement Date2026-08-31
Financial Health
Current Ratio?6.04Strong
Quick Ratio?5.85Strong
Cash Ratio?1.10Strong
Debt/Equity?0.02Low
ValuationATTRACTIVELY VALUEDvs 1 peers + S&P 500
Score
92/100
P/E?
N/A
P/B?
Peers
100
S&P
68
2.31CHEAP
P/S?
Peers
100
S&P
50
3.04FAIR
P/FCF?
N/A
EV/EBITDA?
S&P
97
-62.5CHEAP
EV/Sales?
Peers
100
S&P
62
2.89CHEAP
Returns & Efficiency
ROE?
S&P
12
-4.1%WEAK
ROA?
S&P
3
-3.5%WEAK
Cash Flow & Enterprise
FCF?$-489000
Enterprise Value?$1.0B
Fundamentals ratios updated end of day