Contract OI history
Back to COSTOct 30, 2026 EXPIRATION
COST $995.00 Call
COST261030C00995000
Latest saved OI143Oct 23, 2026
Last change+29vs 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 | 143 | +29 |
| Oct 21, 2026 | 114 | +57 |
| Oct 16, 2026 | 57 | +11 |
| Oct 15, 2026 | 46 | +5 |
| Oct 14, 2026 | 41 | 0 |
| Oct 13, 2026 | 41 | +9 |
| Oct 09, 2026 | 32 | No prior observation |