Castle Biosciences Inc (CSTL)
$37.16 -3.51% Close Oct 30, 2026 Live
Castle Biosciences stock today
Castle Biosciences closed at $37.16 on October 30, 2026, down 3.51% on the day. Over the past year it returned +53.5% with dividends reinvested, against +12.4% for the S&P 500. Its market value is $1.13 billion.
$20.00$30.00$40.00
NovJan 2026MarMayJulSep
| Period | CSTL | S&P 500 (SPY) |
|---|---|---|
| 1 month | +4.6% | -0.9% |
| 3 months | +38.7% | +2.1% |
| Year to date | -4.5% | +11.7% |
| 1 year | +53.5% | +12.4% |
| 3 years | +161.1% | +88.5% |
| 5 years | -40.4% | +76.0% |
Key statistics
- Market value
- $1.13B
- Price / sales
- 3.2
- 52-week range
- $18.15 to $43.04
- Next report
- Nov 5, 2026
About Castle Biosciences
Provides genomic testing and analysis for melanoma and other cancer types.
Sector: Health Care
More on Castle Biosciences
- Financials: revenue, earnings and segmentsRevenue +4% in the year to Dec 2025
- Returns: what $1,000 became$1,000 five years ago is $595.99 today
No forecast, no recommendation. This page describes Castle Biosciences Inc from published data; it is not advice to buy, sell or hold any security.
Figures as of the close on Oct 30, 2026 unless a row says otherwise. Prices are split adjusted; returns include dividends reinvested. Data may be delayed. See the disclaimer and how TrendArc works.