NASDAQ · CSTL

Castle Biosciences, Inc.

Healthcare · Medical - Diagnostics & Research

$33.36

Down-$0.36 (-1.08%)

Updated Oct 8, 2026, 1:22 AM

SID Score

5.7/10

Composite research score

Smart Money

—

Institutional and insider signal

Price performance · CSTL

CSTL price history

1M range · 20 trading sessions · Daily adjusted prices

Prices through Oct 6, 2026

Daily close

View OHLC price history

CSTL OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Oct 6, 2026	$36.65	$37.99	$33.10	$33.36	609.15K
Oct 5, 2026	$35.45	$36.76	$35.10	$36.65	377.26K
Oct 2, 2026	$35.56	$35.92	$34.75	$35.56	167.72K
Oct 1, 2026	$36.10	$36.99	$35.17	$35.255	522.29K
Sep 30, 2026	$34.90	$36.03	$34.1375	$35.53	639.61K
Sep 29, 2026	$35.72	$36.24	$34.24	$34.88	318.62K
Sep 28, 2026	$35.81	$36.265	$35.085	$35.93	228.43K
Sep 25, 2026	$35.19	$36.12	$34.44	$35.81	437.68K
Sep 24, 2026	$34.88	$35.84	$33.90	$35.19	439.15K
Sep 23, 2026	$34.74	$34.965	$33.9938	$34.88	348.28K
Sep 22, 2026	$35.53	$35.53	$34.57	$34.85	430.98K
Sep 21, 2026	$35.68	$35.68	$34.48	$34.99	391.68K
Sep 18, 2026	$36.54	$36.54	$35.29	$35.34	530.24K
Sep 17, 2026	$35.98	$36.85	$34.94	$36.78	364.65K
Sep 16, 2026	$35.50	$36.82	$35.255	$35.48	559.27K
Sep 15, 2026	$33.64	$35.685	$33.64	$35.50	519.95K
Sep 14, 2026	$32.30	$33.53	$32.16	$33.44	165.4K
Sep 11, 2026	$32.77	$32.94	$31.71	$32.33	224.2K
Sep 10, 2026	$31.97	$32.70	$31.44	$32.32	237.83K
Sep 9, 2026	$32.43	$33.03	$32.00	$32.31	194.56K