Contract OI history
Back to COSTDec 15, 2028 EXPIRATION
COST $1000.00 Call
COST281215C01000000
Latest saved OI359Oct 23, 2026
Last change-13vs 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 | 359 | -13 |
| Oct 21, 2026 | 372 | +33 |
| Oct 16, 2026 | 339 | -1 |
| Oct 15, 2026 | 340 | -41 |
| Oct 14, 2026 | 381 | 0 |
| Oct 13, 2026 | 381 | -1 |
| Oct 09, 2026 | 382 | No prior observation |