Contract OI history
Back to COSTJan 15, 2027 EXPIRATION
COST $1600.00 Call
COST270115C01600000
Latest saved OI3,104Oct 23, 2026
Last change-1vs 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 | 3,104 | -1 |
| Oct 21, 2026 | 3,105 | +1 |
| Oct 16, 2026 | 3,104 | -142 |
| Oct 15, 2026 | 3,246 | +12 |
| Oct 14, 2026 | 3,234 | 0 |
| Oct 13, 2026 | 3,234 | 0 |
| Oct 09, 2026 | 3,234 | No prior observation |