OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

ZS $250.00 Call

ZS280121C00250000

Latest saved OI158Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $250.00 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. 164820 2026-10-09: 156 OI2026-10-12: 164 OI2026-10-14: 163 OI2026-10-15: 161 OI2026-10-16: 161 OI2026-10-21: 159 OI2026-10-23: 158 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, 2026158-1
Oct 21, 2026Viewing159-2
Oct 16, 20261610
Oct 15, 2026161-2
Oct 14, 2026163-1
Oct 12, 2026164+8
Oct 09, 2026156No prior observation