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Contract OI history

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Dec 18, 2026 EXPIRATION

ZS $155.00 Put

ZS261218P00155000

Latest saved OI168Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $155.00 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. 181900 2026-10-09: 181 OI2026-10-12: 177 OI2026-10-14: 164 OI2026-10-15: 164 OI2026-10-16: 162 OI2026-10-21: 170 OI2026-10-23: 168 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, 2026168-2
Oct 21, 2026Viewing170+8
Oct 16, 2026162-2
Oct 15, 20261640
Oct 14, 2026164-13
Oct 12, 2026177-4
Oct 09, 2026181No prior observation