Contract OI history
Back to ASSTJan 21, 2028 EXPIRATION
ASST $55.00 Call
ASST280121C00055000
Latest saved OI1,697Oct 23, 2026
Last change+795vs previous saved observation
Saved market days6Oct 13, 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 | 1,697 | +795 |
| Oct 21, 2026 | 902 | +209 |
| Oct 16, 2026 | 693 | +152 |
| Oct 15, 2026 | 541 | +265 |
| Oct 14, 2026 | 276 | 0 |
| Oct 13, 2026 | 276 | No prior observation |