OITracker Cboe delayed data

Contract OI history

Back to ZS

Oct 23, 2026 EXPIRATION

ZS $220.00 Call

ZS261023C00220000

Latest saved OI681Oct 23, 2026
Last change-76vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $220.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 7573780 2026-10-09: 128 OI2026-10-12: 123 OI2026-10-14: 128 OI2026-10-15: 125 OI2026-10-16: 183 OI2026-10-21: 757 OI2026-10-23: 681 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ZS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026681-76
Oct 21, 2026Viewing757+574
Oct 16, 2026183+58
Oct 15, 2026125-3
Oct 14, 2026128+5
Oct 12, 2026123-5
Oct 09, 2026128No prior observation