Contract OI history
Back to ROSTOct 30, 2026 EXPIRATION
ROST $245.00 Call
ROST261030C00245000
Latest saved OI133Oct 23, 2026
Last change+90vs 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, 2026 | 133 | +90 |
| Oct 21, 2026Viewing | 43 | +3 |
| Oct 16, 2026 | 40 | 0 |
| Oct 15, 2026 | 40 | +8 |
| Oct 14, 2026 | 32 | 0 |
| Oct 13, 2026 | 32 | 0 |
| Oct 09, 2026 | 32 | No prior observation |