Contract OI history
Back to ROSTNov 06, 2026 EXPIRATION
ROST $210.00 Put
ROST261106P00210000
Latest saved OI2,496Oct 23, 2026
Last change+6vs 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 | 2,496 | +6 |
| Oct 21, 2026 | 2,490 | 0 |
| Oct 16, 2026 | 2,490 | -2 |
| Oct 15, 2026 | 2,492 | 0 |
| Oct 14, 2026 | 2,492 | 0 |
| Oct 13, 2026 | 2,492 | +11 |
| Oct 09, 2026 | 2,481 | No prior observation |