35.19

0.89% 0.31

Castle Biosciences Inc (CSTL)

Overview News Price History Option Chain Financials Why CSTL Down? Discussions Forecast

Castle Biosciences Inc stock is traded at $35.19, with a volume of 439.15K. It is up +0.89% in the last 24 hours and up +5.14% over the past month. 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.

Previous Close:

$34.88

Open:

$34.88

24h Volume:

439.15K

Relative Volume:

1.12

Market Cap:

$1.08B

Revenue:

$339.92M

Net Income/Loss:

$-12.83M

P/E Ratio:

-81.93

EPS:

-0.4295

Net Cash Flow:

$4.52M

1W Performance:

-4.32%

1M Performance:

+5.14%

6M Performance:

+38.82%

1Y Performance:

+55.23%

1-Day Range:

$33.90

$35.84

1-Week Range:

$33.90

$36.54

52-Week Range:

$17.72

$44.28

Castle Biosciences Inc Stock (CSTL) Company Profile

Name

Castle Biosciences Inc

Sector

Healthcare (1068)

Industry

Diagnostics & Research (49)

Phone

866-788-9007

Address

1500 W. PARKWOOD AVE., FRIENDSWOOD, TX

Employee

942

Twitter

@castlebio

Next Earnings Date

2026-11-02

Latest SEC Filings

CSTL's Discussions on Twitter

Compare CSTL vs TMO, DHR, NTRA, A, IQV

Stocks	Price	Market Cap	Revenue	Net Income	Cash Flow	EPS
CSTL Castle Biosciences Inc	35.19	1.08B	339.92M	-12.83M	4.52M	-0.4295
TMO Thermo Fisher Scientific Inc	678.39	250.83B	45.20B	6.87B	6.75B	18.19
DHR Danaher Corp	223.77	157.31B	24.78B	3.68B	5.29B	5.1743
NTRA Natera Inc	408.79	58.92B	2.50B	-226.32M	71.51M	-1.6412
A Agilent Technologies Inc	172.84	48.73B	7.23B	1.41B	1.09B	4.979
IQV Iqvia Holdings Inc	275.02	45.27B	16.63B	1.39B	2.12B	8.0674

Castle Biosciences Inc Stock (CSTL) Upgrades & Downgrades

Date	Action	Analyst	Rating Change
Dec-14-23	Initiated	Guggenheim	Buy
Jan-05-23	Initiated	Scotiabank	Sector Outperform
Jan-07-22	Initiated	Stephens	Overweight
Apr-30-21	Initiated	Lake Street	Buy
Nov-10-20	Initiated	KeyBanc Capital Markets	Overweight
Dec-27-19	Reiterated	Canaccord Genuity	Buy
Aug-19-19	Initiated	BTIG Research	Buy
Aug-19-19	Initiated	Canaccord Genuity	Buy
Aug-19-19	Initiated	Robert W. Baird	Outperform
Aug-19-19	Initiated	SVB Leerink	Outperform

View All

Castle Biosciences Inc Stock (CSTL) Latest News

Sep 24, 2026

Among people with eczema open to a new medicine, 94% wanted a test to help choose treatment. - Stock Titan

Sep 24, 2026

Sep 23, 2026

Castle Biosciences (NASDAQ:CSTL) Insider Derek Maetzold Sells 8,580 Shares - MarketBeat

Sep 23, 2026

Sep 22, 2026

CSTL Looks 17.2% Overvalued on GF Value™ as Market Prices in Str - GuruFocus

Sep 22, 2026

Castle Biosciences opens 55,000 sq ft Arizona lab facility By Investing.com - Investing.com Canada

Sep 22, 2026

Castle Biosciences to Open New Lab in Arizona - marketscreener.com

Sep 22, 2026

Castle Biosciences opens 55,000 sq ft Arizona lab facility - Investing.com

Sep 22, 2026

Castle Biosciences,Opens New Laboratory And Office Facility In Scottsdale, Arizona - TradingView

Sep 22, 2026

Castle Biosciences to Open New Laboratory Facility in Scottsdale - PR Newswire

Sep 22, 2026

Sep 21, 2026

Castle Biosciences (CSTL) Insider Trading Activity 2026 $CSTL - MarketBeat

Sep 21, 2026

Sep 18, 2026