OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

ZS $300.00 Call

ZS280121C00300000

Latest saved OI923Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $300.00 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. 9264630 2026-10-09: 806 OI2026-10-12: 924 OI2026-10-14: 926 OI2026-10-15: 925 OI2026-10-16: 925 OI2026-10-21: 926 OI2026-10-23: 923 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, 2026Viewing923-3
Oct 21, 2026926+1
Oct 16, 20269250
Oct 15, 2026925-1
Oct 14, 2026926+2
Oct 12, 2026924+118
Oct 09, 2026806No prior observation