Contract OI history
Back to GISDec 18, 2026 EXPIRATION
GIS $32.50 Put
GIS261218P00032500
Latest saved OI3,657Oct 23, 2026
Last change-10vs 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 | 3,657 | -10 |
| Oct 21, 2026 | 3,667 | +152 |
| Oct 16, 2026 | 3,515 | -12 |
| Oct 15, 2026 | 3,527 | +19 |
| Oct 14, 2026 | 3,508 | +107 |
| Oct 13, 2026 | 3,401 | -84 |
| Oct 09, 2026 | 3,485 | +147 |
| Oct 08, 2026 | 3,338 | +25 |
| Oct 07, 2026 | 3,313 | +59 |
| Oct 06, 2026 | 3,254 | +2 |
| Oct 05, 2026 | 3,252 | 0 |
| Oct 02, 2026 | 3,252 | No prior observation |