OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

ZS $150.00 Put

ZS261120P00150000

Latest saved OI544Oct 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 $150.00 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. 5682840 2026-10-09: 568 OI2026-10-12: 557 OI2026-10-14: 555 OI2026-10-15: 543 OI2026-10-16: 544 OI2026-10-21: 547 OI2026-10-23: 544 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, 2026Viewing544-3
Oct 21, 2026547+3
Oct 16, 2026544+1
Oct 15, 2026543-12
Oct 14, 2026555-2
Oct 12, 2026557-11
Oct 09, 2026568No prior observation