Contract OI history
Back to CIAFeb 19, 2027 EXPIRATION
CIA $5.00 Put
CIA270219P00005000
Latest saved OI35,289Oct 23, 2026
Last change+2,393vs previous saved observation
Saved market days11Oct 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 | 35,289 | +2,393 |
| Oct 20, 2026 | 32,896 | +1,666 |
| Oct 16, 2026 | 31,230 | +2,310 |
| Oct 14, 2026 | 28,920 | +1,475 |
| Oct 13, 2026 | 27,445 | +1,101 |
| Oct 09, 2026 | 26,344 | +1,362 |
| Oct 08, 2026 | 24,982 | 0 |
| Oct 07, 2026 | 24,982 | +1,100 |
| Oct 06, 2026 | 23,882 | 0 |
| Oct 05, 2026 | 23,882 | +1,454 |
| Oct 02, 2026 | 22,428 | No prior observation |