NASDAQ · CSTL

Castle Biosciences, Inc.

Healthcare · Medical - Diagnostics & Research

$37.16

Down-$1.35 (-3.51%)

Updated Oct 31, 2026, 2:08 AM

SID Score

6.0/10

Composite research score

Smart Money

—

Institutional and insider signal

Price performance · CSTL

CSTL price history

1M range · 21 trading sessions · Daily adjusted prices

Prices through Oct 30, 2026

Daily close

View OHLC price history

CSTL OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Oct 30, 2026	$38.03	$38.43	$36.73	$37.16	334.26K
Oct 29, 2026	$37.57	$38.725	$36.08	$38.51	723.82K
Oct 28, 2026	$34.51	$37.3799	$34.51	$36.68	431.24K
Oct 27, 2026	$33.55	$34.66	$33.19	$34.51	295.21K
Oct 26, 2026	$33.20	$33.785	$32.84	$33.30	235.84K
Oct 23, 2026	$33.41	$33.62	$32.69	$33.08	203.02K
Oct 22, 2026	$34.13	$34.55	$33.06	$33.19	335.42K
Oct 21, 2026	$33.15	$34.72	$32.93	$34.37	336.59K
Oct 20, 2026	$32.65	$33.55	$32.09	$33.15	272.49K
Oct 19, 2026	$32.44	$32.74	$31.67	$32.165	347.23K
Oct 16, 2026	$33.82	$34.15	$31.795	$31.96	381.93K
Oct 15, 2026	$33.13	$34.06	$32.48	$33.80	381.94K
Oct 14, 2026	$32.47	$33.77	$32.47	$33.11	243.28K
Oct 13, 2026	$32.79	$33.35	$32.23	$32.88	241.7K
Oct 12, 2026	$34.42	$34.42	$32.31	$32.76	238.98K
Oct 9, 2026	$33.52	$34.52	$33.39	$34.42	249.08K
Oct 8, 2026	$32.54	$33.76	$32.25	$33.71	373.8K
Oct 7, 2026	$33.15	$33.72	$32.77	$33.00	351.53K
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