Contract OI history
Back to ZSMar 19, 2027 EXPIRATION
ZS $230.00 Call
ZS270319C00230000
Latest saved OI234Oct 23, 2026
Last change-2vs 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 | 234 | -2 |
| Oct 21, 2026Viewing | 236 | -7 |
| Oct 16, 2026 | 243 | 0 |
| Oct 15, 2026 | 243 | +1 |
| Oct 14, 2026 | 242 | +13 |
| Oct 12, 2026 | 229 | +9 |
| Oct 09, 2026 | 220 | No prior observation |