Castle Biosciences, Inc. Common Stock

CSTLNASDAQUSD
24.16 USD
0.07 (0.29%)AT CLOSE (11:59 AM EDT)
24.12
0.05 (0.19%)
POST MARKET (AS OF 04:33 PM EDT)
Post Market
AS OF 04:33 PM EDT
24.12
0.05 (0.19%)
🔴Market: CLOSED

Castle Biosciences, Inc. Common Stock (CSTL) is currently trading at $24.16. The technical outlook is "Neutral" and the fundamental picture shows "Sell". 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 Jul 17, 2026.

Open?$23.79
High?$24.34
Low?$23.59
Prev. Close?$24.23
Volume?242.9K
Avg. Volume?326.0K
VWAP?$24.04
Rel. Volume?0.74x
Bid / Ask
Bid?$22.95 × 100
Ask?$25.01 × 200
Spread?$2.06
Midpoint?$23.98
Valuation & Ratios
Market Cap?732.8M
Shares Out?30.3M
Float?28.4M
Float %?93.5%
P/E Ratio?N/A
P/B Ratio?1.59
EPS?-$0.42
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
942
Market Cap
734.9M
Industry
SERVICES-MEDICAL LABORATORIES
Listed
2019-07-25
Address
1500 W. PARKWOOD AVE.
FRIENDSWOOD, TX 77546
Phone: 866-788-9007
Technical OutlookNeutral
Strong SellNeutralStrong Buy
Long-Term (Tide)? Neutral(0/3)
Medium-Term (Wave)? Neutral(0/3)
Short-Term (Ripple)? Bullish(+2/3)
MA Alignment?Mixed
Full Technical Analysis →
Fundamental OutlookSell
Strong SellNeutralStrong Buy
F-Score?
12
Z-Score?
100
Momentum?
3
Short Sent.?
69
Piotroski F-Score?2/9Weak
Altman Z-Score?10.43Safe
Confidence?51%Low
Full Fundamental Analysis →
Short InterestElevated
Short % of Float?5.26%Elevated
Short Interest?1.5M
Days to Cover?3.2
Free Float28.4M
Avg Daily Volume469.0K
Settlement Date2026-06-30
Financial Health
Current Ratio?6.75Strong
Quick Ratio?6.53Strong
Cash Ratio?1.31Strong
Debt/Equity?0.02Low
ValuationATTRACTIVELY VALUEDvs 1 peers + S&P 500
Score
87/100
P/E?
N/A
P/B?
Peers
100
S&P
85
1.59CHEAP
P/S?
Peers
100
S&P
63
2.16CHEAP
P/FCF?
Peers
100
S&P
3
162.2PRICEY
EV/EBITDA?
S&P
97
-37.0CHEAP
EV/Sales?
Peers
100
S&P
75
2.00CHEAP
Returns & Efficiency
ROE?
S&P
13
-2.8%WEAK
ROA?
S&P
3
-2.3%WEAK
Cash Flow & Enterprise
FCF?$4.5M
Enterprise Value?$679.4M
Fundamentals ratios updated end of day