Contract OI history
Back to COSTOct 23, 2026 EXPIRATION
COST $1020.00 Call
COST261023C01020000
Latest saved OI1,039Oct 23, 2026
Last change-67vs 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 | 1,039 | -67 |
| Oct 21, 2026 | 1,106 | +955 |
| Oct 16, 2026 | 151 | +37 |
| Oct 15, 2026 | 114 | +14 |
| Oct 14, 2026 | 100 | 0 |
| Oct 13, 2026 | 100 | +10 |
| Oct 09, 2026 | 90 | No prior observation |