Contract OI history
Back to COSTOct 30, 2026 EXPIRATION
COST $1110.00 Call
COST261030C01110000
Latest saved OI255Oct 23, 2026
Last change-5vs 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 | 255 | -5 |
| Oct 21, 2026 | 260 | -6 |
| Oct 16, 2026 | 266 | -49 |
| Oct 15, 2026 | 315 | 0 |
| Oct 14, 2026 | 315 | 0 |
| Oct 13, 2026 | 315 | +119 |
| Oct 09, 2026 | 196 | No prior observation |