Castle Biosciences Inc. (CSTL)
NASDAQ: CSTL
· Real-Time Price · USD
19.91
-0.65 (-3.16%)
At close: Aug 19, 2025, 3:59 PM
19.90
-0.05%
After-hours: Aug 19, 2025, 06:09 PM EDT
CSTL Open Interest Chart
Open interest breakdown by expiration date for CSTL
options contracts. Displaying data for 4
active expiration dates with future expiry.
Total open interest across all expiries is
1,301
contracts, with 1,105
call contracts and
196 put contracts. The
overall put-call open interest ratio is
0.18, indicating a
bullish
bias in positioning. Options expire from
Sep 19, 2025
to
Apr 17, 2026.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Sep 19, 2025 | 96 | 45 | 0.47 |
| Oct 17, 2025 | 747 | 129 | 0.17 |
| Jan 16, 2026 | 62 | 22 | 0.35 |
| Apr 17, 2026 | 200 | 0 | 0.00 |