Contract OI history
Back to CIENOct 23, 2026 EXPIRATION
CIEN $280.00 Put
CIEN261023P00280000
Latest saved OI134Oct 23, 2026
Last change+9vs 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 | 134 | +9 |
| Oct 21, 2026 | 125 | +6 |
| Oct 16, 2026 | 119 | +9 |
| Oct 15, 2026 | 110 | +9 |
| Oct 14, 2026 | 101 | 0 |
| Oct 13, 2026 | 101 | -8 |
| Oct 09, 2026 | 109 | -5 |
| Oct 08, 2026 | 114 | 0 |
| Oct 07, 2026 | 114 | +71 |
| Oct 06, 2026 | 43 | 0 |
| Oct 05, 2026 | 43 | -4 |
| Oct 02, 2026 | 47 | No prior observation |