Castle Biosciences, Inc. Common Stock

CSTLNASDAQUSD
34.10 USD
0.02 (0.06%)🟢PRE MARKET (AS OF 07:47 AM EDT)
🟢Market: OPEN

Castle Biosciences, Inc. Common Stock (CSTL) is currently trading at $34.10. 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 and a bearish Death Cross on the long-term moving averages. Valuation metrics suggest CSTL is trading at a discount to its peers, earning an "Attractively Valued" rating.

Technical & fundamental data as of Aug 26, 2026.

Open?$34.75
High?$34.75
Low?$34.10
Prev. Close?$34.08
Volume?124
Avg. Volume?476.2K
VWAP?$34.10
Rel. Volume?0.00x
Bid / Ask
Bid?$27.48 × 100
Ask?$41.04 × 100
Spread?$13.56
Midpoint?$34.26
Valuation & Ratios
Market Cap?1.0B
Shares Out?30.5M
Float?28.4M
Float %?93.5%
P/E Ratio?N/A
P/B Ratio?2.22
EPS?-$0.64
Dividend?0.00%
Ex-Dividend?N/A
News
Profile
Castle Biosciences Inc is a molecular diagnostics company. The group provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), and uveal melanoma. The product portfolio of the company includes DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test; DecisionDx-SCC, a risk stratification test for cutaneous squamous cell carcinoma; MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions; and TissueCypher, a test to predict future development of progression of high-grade dysplasia and/or esophageal cancer. The company derives revenues through the delivery of test reports for its molecular diagnostic tests.
Employees
1.0K
Market Cap
1.0B
Industry
SERVICES-MEDICAL LABORATORIES
Listed
2019-07-25
Address
1500 W. PARKWOOD AVE.
FRIENDSWOOD, TX 77546
Phone: 866-788-9007
Technical OutlookStrong Buy
Strong SellNeutralStrong Buy
Long-Term (Tide)? Bullish(+2/3)
Medium-Term (Wave)? Bullish(+2/3)
Short-Term (Ripple)? Neutral(0/3)
MA Alignment?Mixed
Full Technical Analysis →
Fundamental OutlookNeutral
Strong SellNeutralStrong Buy
F-Score?
12
Z-Score?
100
Momentum?
14
Short Sent.?
64
Piotroski F-Score?2/9Weak
Altman Z-Score?13.54Safe
Confidence?51%Low
Full Fundamental Analysis →
Short InterestElevated
Short % of Float?6.19%Elevated
Short Interest?1.8M
Days to Cover?3.7
Free Float28.4M
Avg Daily Volume477.1K
Settlement Date2026-08-14
Financial Health
Current Ratio?6.04Strong
Quick Ratio?5.85Strong
Cash Ratio?1.10Strong
Debt/Equity?0.02Low
ValuationATTRACTIVELY VALUEDvs 1 peers + S&P 500
Score
100/100
P/E?
N/A
P/B?
Peers
100
S&P
69
2.22CHEAP
P/S?
Peers
100
S&P
52
2.91CHEAP
P/FCF?
N/A
EV/EBITDA?
S&P
97
-59.9CHEAP
EV/Sales?
Peers
100
S&P
64
2.77CHEAP
Returns & Efficiency
ROE?
S&P
12
-4.1%WEAK
ROA?
S&P
3
-3.5%WEAK
Cash Flow & Enterprise
FCF?$-489000
Enterprise Value?$989.4M
Fundamentals ratios updated end of day