OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

ZS $222.50 Put

ZS261030P00222500

Latest saved OI440Oct 23, 2026
Last change+385vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $222.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4402200 2026-10-09: 29 OI2026-10-12: 30 OI2026-10-14: 37 OI2026-10-15: 37 OI2026-10-16: 47 OI2026-10-21: 55 OI2026-10-23: 440 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, 2026Viewing440+385
Oct 21, 202655+8
Oct 16, 202647+10
Oct 15, 2026370
Oct 14, 202637+7
Oct 12, 202630+1
Oct 09, 202629No prior observation