Contract OI history
Back to ROSTOct 30, 2026 EXPIRATION
ROST $235.00 Call
ROST261030C00235000
Latest saved OI23Oct 23, 2026
Last change-5vs 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 | 23 | -5 |
| Oct 21, 2026Viewing | 28 | 0 |
| Oct 16, 2026 | 28 | +3 |
| Oct 15, 2026 | 25 | 0 |
| Oct 14, 2026 | 25 | 0 |
| Oct 13, 2026 | 25 | 0 |
| Oct 09, 2026 | 25 | No prior observation |