OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

ZS $200.00 Call

ZS270521C00200000

Latest saved OI134Oct 23, 2026
Last change-5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $200.00 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. 154770 2026-10-09: 154 OI2026-10-12: 149 OI2026-10-14: 144 OI2026-10-15: 144 OI2026-10-16: 143 OI2026-10-21: 139 OI2026-10-23: 134 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, 2026134-5
Oct 21, 2026Viewing139-4
Oct 16, 2026143-1
Oct 15, 20261440
Oct 14, 2026144-5
Oct 12, 2026149-5
Oct 09, 2026154No prior observation