CASTLE BIOSCIENCES INC
CSTLNASDAQTrading Snapshot
- Day Range
- $36.09 โ $38.73
- 52-Week Range
- $17.72 โ $44.28
- Volume (shares)
- 723,808
- Avg Volume (shares)
- โ
- Shares Outstanding
- 30.6M
- Next Earnings
- 2026-11-05
Fundamentals Snapshot
- Annual Revenue
- $344M
- Last Q Revenue
- $104M
- P/E Ratio
- โ
- P/S Ratio
- 3.3x
- EPS (TTM)
- $-0.65
- Dividend Yield
- โ
- Dilution (1yr)
- โ2.9%
CASTLE BIOSCIENCES INC
CSTLAbout CASTLE BIOSCIENCES INC
Castle Biosciences, Inc. functions as a commercial-stage diagnostics firm, with its primary objective being the provision of both diagnostic and prognostic testing services, specifically targeting various dermatological cancers. Their flagship product, DecisionDx-Melanoma, represents an advanced multi-gene expression profile (GEP) assay engineered to assess the probability of metastasis in patients afflicted with invasive cutaneous melanoma. In addition to their leading solution, the company has created several other specialized, proprietary tests. Among these is DecisionDx-UM, a GEP test tailored to forecast the risk of metastasis for individuals with uveal melanoma, a less common malignancy of the eye. Another key offering is DecisionDx-SCC, a distinctive 40-gene expression profile test that utilizes a patient's unique tumor biology to predict their specific risk of squamous cell carcinoma metastasis, particularly for those presenting with recognized risk factors. Moreover, they offer DecisionDx DiffDx-Melanoma and myPath Melanoma, both proprietary GEP tests employed to assist in the accurate diagnosis of ambiguous pigmented lesions. These specialized testing services are provided by Castle Biosciences to patients predominantly through their healthcare providers. The organization commenced operations in 2007 and maintains its corporate headquarters in Friendswood, Texas.
Otter Score Breakdown
How it's scoredFive components, each rated 1โ5โ and equally weighted (20%), averaged to a 0โ100 score:๐ Quality โ gross margin๐ Growth โ revenue YoYโ๏ธ Valuation โ P/S ratioโก Momentum โ 30-day price change๐ง Dilution โ 1-yr share issuance (buybacks score higher)Analyst Ratings
โLatest News & Updates

Castle Biosciences to Participate in Upcoming Investor Conferences
FRIENDSWOOD, Texas, Oct. 28, 2026 /PRNewswire/ -- Castle Biosciences, Inc.ย (Nasdaq: CSTL), a company improving health through innovative tests that guide patient care, today announced that its executive management is sch

Castle Biosciences to Release Third Quarter 2026 Financial Results and Host Webcast on Thursday, Nov. 5, 2026
FRIENDSWOOD, Texas, Oct. 15, 2026 /PRNewswire/ -- Castle Biosciences, Inc.ย (Nasdaq: CSTL), a company improving health through innovative tests that guide patient care, today announced that it will release its financial r

Castle Biosciences Inc (CSTL) Shares Fall 4.8% -- What GF Score of 80 Tells Investors
Castle Biosciences Valuation AssessmentOn October 12, 2026, Castle Biosciences Inc (CSTL) shares fell 4.8% to $32.76, marking a significant decline in the conte

ACG 2026 Data Show TissueCypherยฎ Identifies Elevated Risk of Progression Beyond Pathology Findings in Barrett's Esophagus
Studies highlight how molecular risk assessment with TissueCypher can help inform surveillance and treatment decisions beyond biopsy findings alone FRIENDSWOOD, Texas, Oct. 12, 2026 /PRNewswire/ -- Castle Biosciences, In

Castle Biosciences (NASDAQ:CSTL) Stock Price Down 6.1% Following Insider Selling
Shares of Castle Biosciences, Inc. (NASDAQ: CSTL - Get Free Report) fell 6.1% during mid-day trading on Tuesday after an insider sold shares in the company. The stock traded as low as $34.48 and last traded at $34.4220.

Castle Biosciences (NASDAQ:CSTL) Insider Tobin Juvenal Sells 1,034 Shares of Stock
Castle Biosciences, Inc. (NASDAQ: CSTL - Get Free Report) insider Tobin Juvenal sold 1,034 shares of the company's stock in a transaction that occurred on Wednesday, September 30th. The shares were sold at an average pri