OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

ZS $300.00 Call

ZS270115C00300000

Latest saved OI1,730Oct 23, 2026
Last change-10vs 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. 1,7978980 2026-10-09: 1,796 OI2026-10-12: 1,797 OI2026-10-14: 1,750 OI2026-10-15: 1,740 OI2026-10-16: 1,740 OI2026-10-21: 1,740 OI2026-10-23: 1,730 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, 20261,730-10
Oct 21, 2026Viewing1,7400
Oct 16, 20261,7400
Oct 15, 20261,740-10
Oct 14, 20261,750-47
Oct 12, 20261,797+1
Oct 09, 20261,796No prior observation