Contract OI history
Back to COSTJun 17, 2027 EXPIRATION
COST $1540.00 Call
COST270617C01540000
Latest saved OI188Oct 23, 2026
Last change-11vs 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 | 188 | -11 |
| Oct 21, 2026 | 199 | -6 |
| Oct 16, 2026 | 205 | +1 |
| Oct 15, 2026 | 204 | +2 |
| Oct 14, 2026 | 202 | 0 |
| Oct 13, 2026 | 202 | +5 |
| Oct 09, 2026 | 197 | No prior observation |