Contract OI history
Back to SFDNov 20, 2026 EXPIRATION
SFD $17.50 Put
SFD261120P00017500
Latest saved OI743Oct 23, 2026
Last change+339vs previous saved observation
Saved market days6Oct 09, 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 | 743 | +339 |
| Oct 20, 2026 | 404 | +78 |
| Oct 15, 2026 | 326 | +104 |
| Oct 14, 2026 | 222 | +32 |
| Oct 13, 2026 | 190 | +22 |
| Oct 09, 2026 | 168 | No prior observation |