Contract OI history
Back to CIENOct 23, 2026 EXPIRATION
CIEN $310.00 Put
CIEN261023P00310000
Latest saved OI402Oct 23, 2026
Last change-176vs previous saved observation
Saved market days12Oct 02, 2026 onwards
All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.
| Market date | Open interest | Change vs prior saved day |
|---|---|---|
| Oct 23, 2026Viewing | 402 | -176 |
| Oct 21, 2026 | 578 | +497 |
| Oct 16, 2026 | 81 | -1 |
| Oct 15, 2026 | 82 | +1 |
| Oct 14, 2026 | 81 | 0 |
| Oct 13, 2026 | 81 | +1 |
| Oct 09, 2026 | 80 | 0 |
| Oct 08, 2026 | 80 | 0 |
| Oct 07, 2026 | 80 | -1 |
| Oct 06, 2026 | 81 | +6 |
| Oct 05, 2026 | 75 | -4 |
| Oct 02, 2026 | 79 | No prior observation |