35.12 USD
↘ 0.38 (1.06%)AFTER HOURS (AS OF Tue 04:00 PM EDT)
CSTL Stock After Hours
Castle Biosciences, Inc. Common Stock
CSTLNASDAQ • USD
Market: OPEN
After-hours trading runs 4:00 PM – 8:00 PM ET.
CSTL last traded at $35.12 after hours, down $0.38 (1.06%) from its regular-session close of $35.50.
📅 CSTL is expected to report earnings around Nov 2, 2026 after the close (estimated), with an estimated EPS of $-0.38. CSTL earnings details →
CSTL After Hours Chart
CSTL After Hours News
Gap Analytics — 5-year history, 5% minimum gap
No qualifying gap events found for CSTL.
Frequently Asked Questions
What is CSTL's after-hours price?
Castle Biosciences (CSTL) is trading at $35.12 after hours, down $0.38 (1.06%) from its regular-session close of $35.50.
Why is CSTL moving after hours?
CSTL is down 1.06% in after-hours trading. Moves in this session almost always follow something released after the 4:00 PM ET close — an earnings report, guidance, a filing, or news — and trade on far thinner volume than the regular session, so the size of the move can overstate what the market will settle on at the next open.
When does CSTL after-hours trading start and end?
After-hours trading in CSTL on the NASDAQ runs from 4:00 PM to 8:00 PM ET on trading days, immediately after the regular session closes. Not every broker offers the full window, and liquidity thins sharply after about 6:30 PM ET.
When does CSTL report earnings?
CSTL is expected to report earnings around Nov 2, 2026 after the close (estimated), with an estimated EPS of $-0.38. Earnings are the most common cause of a large after-hours move, since most companies report after the close.