Contract OI history
Back to FISDec 18, 2026 EXPIRATION
FIS $42.50 Call
FIS261218C00042500
Latest saved OI358Oct 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 | 358 | -2 |
| Oct 21, 2026 | 360 | +82 |
| Oct 16, 2026 | 278 | 0 |
| Oct 15, 2026 | 278 | 0 |
| Oct 14, 2026 | 278 | -12 |
| Oct 13, 2026 | 290 | +12 |
| Oct 09, 2026 | 278 | 0 |
| Oct 08, 2026 | 278 | 0 |
| Oct 07, 2026 | 278 | 0 |
| Oct 06, 2026 | 278 | +192 |
| Oct 05, 2026 | 86 | 0 |
| Oct 02, 2026 | 86 | No prior observation |