Contract OI history
Back to COSTJan 15, 2027 EXPIRATION
COST $990.00 Call
COST270115C00990000
Latest saved OI251Oct 23, 2026
Last change-7vs 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 | 251 | -7 |
| Oct 21, 2026 | 258 | +14 |
| Oct 16, 2026 | 244 | +2 |
| Oct 15, 2026 | 242 | -1 |
| Oct 14, 2026 | 243 | 0 |
| Oct 13, 2026 | 243 | 0 |
| Oct 09, 2026 | 243 | No prior observation |