Chain
CSTL options
Options Chain
Active CSTL contracts expiring in the next 7–45 days, strikes within ±25% of the current price.
| Expiration | Days to expiry | Contracts |
|---|---|---|
| 2026-08-21 | 22 | 8 |
| Type | Strike | Expiry | Open interest | Close |
|---|---|---|---|---|
| Call | $20.00 | 2026-08-21 | — | — |
| Call | $22.50 | 2026-08-21 | 2 | $3.25 |
| Call | $25.00 | 2026-08-21 | 2 | $2.10 |
| Call | $30.00 | 2026-08-21 | 7 | $0.05 |
| Put | $20.00 | 2026-08-21 | 1 | $1.80 |
| Put | $22.50 | 2026-08-21 | 4 | $1.90 |
| Put | $25.00 | 2026-08-21 | — | — |
| Put | $30.00 | 2026-08-21 | — | — |