Contract OI history
Back to ETOct 30, 2026 EXPIRATION
ET $18.00 Put
ET261030P00018000
Latest saved OI227Oct 08, 2026
Last change+11vs previous saved observation
Saved market days5Oct 02, 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 08, 2026Viewing | 227 | +11 |
| Oct 07, 2026 | 216 | 0 |
| Oct 06, 2026 | 216 | 0 |
| Oct 05, 2026 | 216 | +200 |
| Oct 02, 2026 | 16 | No prior observation |