Contract OI history
Back to NBISJan 21, 2028 EXPIRATION
NBIS $40.00 Put
NBIS280121P00040000
Latest saved OI19,990Oct 23, 2026
Last change-106vs previous saved observation
Saved market days7Oct 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 | 19,990 | -106 |
| Oct 21, 2026 | 20,096 | +38 |
| Oct 16, 2026 | 20,058 | +722 |
| Oct 15, 2026 | 19,336 | +306 |
| Oct 14, 2026 | 19,030 | 0 |
| Oct 13, 2026 | 19,030 | +514 |
| Oct 09, 2026 | 18,516 | No prior observation |