OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

ZH $2.50 Call

ZH261218C00002500

Latest saved OI1,508Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZH $2.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,5087540 2026-10-02: 1,408 OI2026-10-05: 1,408 OI2026-10-06: 1,408 OI2026-10-07: 1,408 OI2026-10-09: 1,508 OI2026-10-13: 1,508 OI2026-10-15: 1,508 OI2026-10-16: 1,508 OI2026-10-20: 1,508 OI2026-10-23: 1,508 OI Oct 02, 2026Oct 23, 2026

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

ZH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,5080
Oct 20, 20261,5080
Oct 16, 20261,5080
Oct 15, 20261,5080
Oct 13, 20261,5080
Oct 09, 20261,508+100
Oct 07, 20261,4080
Oct 06, 20261,4080
Oct 05, 20261,4080
Oct 02, 20261,408No prior observation