Contract OI history
Back to CIENDec 18, 2026 EXPIRATION
CIEN $400.00 Call
CIEN261218C00400000
Latest saved OI217Oct 23, 2026
Last change-2vs 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 | 217 | -2 |
| Oct 21, 2026 | 219 | +1 |
| Oct 16, 2026 | 218 | +8 |
| Oct 15, 2026 | 210 | -4 |
| Oct 14, 2026 | 214 | 0 |
| Oct 13, 2026 | 214 | +6 |
| Oct 09, 2026 | 208 | -56 |
| Oct 08, 2026 | 264 | 0 |
| Oct 07, 2026 | 264 | -13 |
| Oct 06, 2026 | 277 | -48 |
| Oct 05, 2026 | 325 | -11 |
| Oct 02, 2026 | 336 | No prior observation |