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Castle Biosciences, Inc. CSTL

Set alert

Price alert · CSTL

All alert types
37.16 USD -1.35 -3.51%

At close · Oct 30

37.16 0.00 0.00%

After hours · Oct 30, 4:00 PM ET

Bid
37.08 × 2
Ask
37.18 × 2
36.73 Day range 38.43
18.15 52-week range 43.04
YTD
-4.47%
1 year
+53.49%
Open
38.03
Prev close
38.51
Mkt cap
1.14B
Vol
334.26K
Avg vol
399.33K
EPS
-0.64
P/E
0.00
Div yield
0.00%
More statistics
Low
36.73
High
38.43
Forward P/E
-39.74
Beta
0.94
Short ratio
5.17
Inst. own
91.08%
Dividend
0.00
Ex-div date
Earnings
Nov 5, 2026
50-d avg
34.13
200-d avg
28.54
1y target
46.70

2Y chart

Chart tools
Interval

Events in this range
  • Aug 4, 2025Earnings: 0.15; estimate -0.51; surprise 129.41%
  • Nov 3, 2025Earnings: -0.02; estimate -0.34; surprise 94.12%
  • Feb 26, 2026Earnings: -0.08; estimate -0.23; surprise 65.22%
  • Feb 27, 2026Rating: Baird · Outperform → Outperform
  • Apr 20, 2026Rating: Canaccord Genuity · Buy → Buy
  • May 6, 2026Earnings: -0.49; estimate -0.49; surprise 0%
  • May 7, 2026Rating: Baird · Outperform → Outperform
  • May 13, 2026Rating: BTIG · Buy → Buy
  • Jun 25, 2026Rating: Roth Capital · — → Buy
  • Jul 30, 2026Earnings: -0.07; estimate -0.40697; surprise 82.8%
  • Aug 3, 2026Rating: BTIG · Buy → Buy
Signals (76)
NameDateAgo
SMA: BullishOct 27, 20264 days ago
MACD: Buy SignalOct 27, 20264 days ago
SMA: BearishOct 22, 20261 week ago
SMA: BullishOct 21, 20261 week ago
SMA: BearishOct 16, 20262 weeks ago
SMA: BullishOct 15, 20262 weeks ago
SMA: BearishOct 12, 20262 weeks ago
MACD: Sell SignalSep 22, 20261 month ago
MACD: Buy SignalSep 17, 20261 month ago
RSI: OverboughtSep 17, 20261 month ago
MACD: Sell SignalAug 31, 20262 months ago
RSI: OverboughtAug 25, 20262 months ago
MACD: Buy SignalAug 21, 20262 months ago
RSI: OverboughtAug 21, 20262 months ago
SMA: BullishAug 19, 20262 months ago
SMA: BearishAug 18, 20262 months ago
MACD: Sell SignalAug 17, 20262 months ago
SMA: BullishAug 3, 20262 months ago
RSI: OverboughtJul 31, 20263 months ago
MACD: Buy SignalJul 30, 20263 months ago
MACD: Sell SignalJul 28, 20263 months ago
MACD: Buy SignalJul 22, 20263 months ago
MACD: Sell SignalJul 14, 20263 months ago
SMA: BullishJun 24, 20264 months ago
MACD: Buy SignalMay 21, 20265 months ago
RSI: OversoldMay 11, 20265 months ago
MACD: Sell SignalMay 7, 20265 months ago
RSI: OversoldMay 7, 20265 months ago
RSI: OversoldMar 26, 20267 months ago
MACD: Buy SignalMar 17, 20267 months ago
SMA: BearishMar 6, 20267 months ago
RSI: OversoldMar 6, 20267 months ago
RSI: OversoldMar 3, 20268 months ago
RSI: OversoldFeb 19, 20268 months ago
RSI: OversoldFeb 4, 20268 months ago
SMA: BearishJan 29, 20269 months ago
MACD: Sell SignalJan 28, 20269 months ago
RSI: OverboughtJan 26, 20269 months ago
MACD: Buy SignalJan 22, 20269 months ago
RSI: OverboughtDec 22, 202510 months ago
RSI: OverboughtDec 17, 202510 months ago
MACD: Sell SignalDec 4, 202511 months ago
RSI: OverboughtNov 4, 202512 months ago
MACD: Buy SignalOct 22, 20251 year ago
SMA: BullishOct 20, 20251 year ago
SMA: BearishOct 17, 20251 year ago
SMA: BullishSep 18, 20251 year ago
SMA: BearishSep 12, 20251 year ago
MACD: Sell SignalSep 11, 20251 year ago
RSI: OverboughtSep 8, 20251 year ago
SMA: BullishAug 28, 20251 year ago
RSI: OverboughtAug 28, 20251 year ago
SMA: BullishAug 5, 20251 year ago
MACD: Buy SignalAug 5, 20251 year ago
RSI: OversoldJul 31, 20251 year ago
RSI: OversoldJul 22, 20251 year ago
RSI: OversoldJul 18, 20251 year ago
SMA: BearishJul 17, 20251 year ago
MACD: Sell SignalJul 10, 20251 year ago
RSI: OverboughtJun 30, 20251 year ago
SMA: BullishJun 11, 20251 year ago
MACD: Buy SignalMay 28, 20251 year ago
RSI: OversoldMay 6, 20251 year ago
MACD: Sell SignalMay 1, 20251 year ago
SMA: BearishApr 23, 20251 year ago
SMA: BullishApr 22, 20251 year ago
MACD: Buy SignalMar 19, 20251 year ago
RSI: OversoldMar 5, 20251 year ago
RSI: OversoldFeb 28, 20251 year ago
MACD: Sell SignalFeb 18, 20251 year ago
SMA: BearishFeb 4, 20251 year ago
SMA: BullishFeb 3, 20251 year ago
MACD: Buy SignalJan 28, 20251 year ago
MACD: Sell SignalJan 15, 20251 year ago
MACD: Buy SignalJan 2, 20251 year ago
RSI: OversoldDec 18, 20241 year ago

Key statistics

Market cap
1.14B
Enterprise value
946.31M
Trailing P/E
0.00
Forward P/E
-39.74
PEG ratio
0.00
Price / sales
3.18
Price / book
2.41
EPS (TTM)
-0.64
Beta
0.94
Dividend yield
0.00%
Payout ratio
0.00%
Profit margin
-5.43%
Revenue (TTM)
357.28M
Revenue growth
20.10%
Free cash flow
-7.26M
Total cash
266.80M
Total debt
36.65M
Return on equity
-4.20%
Shares outstanding
30.55M
Short % of float
6.76%
50-day average
34.13
200-day average
28.54

Analyst view

Consensus: strong buy

Strong buy
Price target (mean) 46.70 +25.7% upside
Target (low)
35.00
Target (mean)
46.70
Target (high)
60.00
Ratings (0m) 10 10 buy · 0 hold · 0 sell
  • Strong buy0
  • Buy10
  • Hold0
  • Sell0
  • Strong sell0

Next earnings

Nov 5, 2026

Expected Nov 5, 2026. Consensus EPS estimate -0.346.

Earnings history

Financials — quick view

All financials
CSTL Revenue — quarterly 103.55M
2022-Q3 20222022-Q4 20222023-Q1 20232023-Q2 20232023-Q3 20232023-Q4 20232024-Q1 20242024-Q2 20242024-Q3 20242024-Q4 20242025-Q1 20252025-Q2 20252025-Q3 20252025-Q4 20252026-Q1 20262026-Q2 2026
CSTL Net income — quarterly -2.06M
2022-Q3 20222022-Q4 20222023-Q1 20232023-Q2 20232023-Q3 20232023-Q4 20232024-Q1 20242024-Q2 20242024-Q3 20242024-Q4 20242025-Q1 20252025-Q2 20252025-Q3 20252025-Q4 20252026-Q1 20262026-Q2 2026
CSTL EPS — quarterly -0.07
2022-Q3 20222022-Q4 20222023-Q1 20232023-Q2 20232023-Q3 20232023-Q4 20232024-Q1 20242024-Q2 20242024-Q3 20242024-Q4 20242025-Q1 20252025-Q2 20252025-Q3 20252025-Q4 20252026-Q1 20262026-Q2 2026

Earnings

CSTL recent earnings
Report dateQuarter endingEPS estimateEPS reportedSurpriseSurprise %
Nov 5, 2026Sep 30, 2026-0.35444———
Jul 30, 2026Jun 30, 2026-0.40697-0.07+0.34+82.80%
May 6, 2026Mar 31, 2026-0.49-0.490.000.00%
Feb 26, 2026Dec 31, 2025-0.23-0.08+0.15+65.22%
Nov 3, 2025Sep 30, 2025-0.34-0.02+0.32+94.12%
Aug 4, 2025Jun 30, 2025-0.510.15+0.66+129.41%

Upgrades / downgrades

CSTL analyst upgrades and downgrades
DateFirmActionFromTo
Aug 3, 2026BTIGmainBuyBuy
Jun 25, 2026Roth Capitalinit—Buy
May 13, 2026BTIGmainBuyBuy
May 7, 2026BairdmainOutperformOutperform
Apr 20, 2026Canaccord GenuitymainBuyBuy
Feb 27, 2026BairdmainOutperformOutperform

About Castle Biosciences, Inc.

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.

Sector
Healthcare
Industry
Diagnostics & Research
Country
United States

News

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Insider holders

CSTL insider holders
InsiderRelationLatest transactionDateShares held
BRADBURY DANIEL MDirectorConversion of Exercise of derivative securityMay 21, 202635,631
CAPLE KIMDirectorConversion of Exercise of derivative securityMay 21, 202636,121
COTTON RODNEYDirectorConversion of Exercise of derivative securityMay 21, 202632,998
GOLDBERG ELLENDirectorConversion of Exercise of derivative securityMay 21, 202640,921
HARRISON MILES DDirectorConversion of Exercise of derivative securityMay 21, 202635,631
JUVENAL TOBIN WOfficerSaleOct 25, 202645,431

Institution ownership

CSTL institution ownership
Holder% heldSharesValueReported
Blackrock Inc.10.78%3,291,963122.33MJun 29, 2026
RTW Investments LP9.09%2,778,335103.24MJun 29, 2026
Principal Financial Group, Inc.5.65%1,726,64864.16MJun 29, 2026
Vanguard Capital Management LLC4.01%1,226,49745.58MJun 29, 2026
Acadian Asset Management. LLC3.01%918,66834.14MJun 29, 2026
Allianz Asset Management GmbH2.88%879,25832.67MJun 29, 2026

Fund ownership

CSTL fund ownership
Holder% heldSharesValueReported
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund2.79%852,70431.69MJun 29, 2026
Fidelity Rutland Square TRT II-Strategic Advisers U.S. Total Stock Fd.2.60%793,43829.48MAug 30, 2026
iShares Trust-iShares Russell 2000 ETF2.54%776,29828.85MSep 29, 2026
Principal Funds, Inc-SmallCap Fund2.37%725,13826.95MJul 30, 2026
VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund1.12%342,65512.73MJun 29, 2026
Fidelity Salem Street Trust-Fidelity Small Cap Index Fund1.07%327,80612.18MJul 30, 2026
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