Contract OI history
Back to COSTOct 30, 2026 EXPIRATION
COST $1045.00 Call
COST261030C01045000
Latest saved OI103Oct 23, 2026
Last change+64vs 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 | 103 | +64 |
| Oct 21, 2026 | 39 | -1 |
| Oct 16, 2026 | 40 | +2 |
| Oct 15, 2026 | 38 | +25 |
| Oct 14, 2026 | 13 | 0 |
| Oct 13, 2026 | 13 | 0 |
| Oct 09, 2026 | 13 | No prior observation |