Contract OI history
Back to COSTNov 20, 2026 EXPIRATION
COST $1020.00 Call
COST261120C01020000
Latest saved OI913Oct 23, 2026
Last change+59vs 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 | 913 | +59 |
| Oct 21, 2026 | 854 | +185 |
| Oct 16, 2026 | 669 | +116 |
| Oct 15, 2026 | 553 | +118 |
| Oct 14, 2026 | 435 | 0 |
| Oct 13, 2026 | 435 | +73 |
| Oct 09, 2026 | 362 | No prior observation |