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Contract OI history

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Nov 20, 2026 EXPIRATION

ZS $180.00 Put

ZS261120P00180000

Latest saved OI1,449Oct 23, 2026
Last change+71vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $180.00 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. 1,4497240 2026-10-09: 583 OI2026-10-12: 558 OI2026-10-14: 552 OI2026-10-15: 551 OI2026-10-16: 818 OI2026-10-21: 1,378 OI2026-10-23: 1,449 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, 2026Viewing1,449+71
Oct 21, 20261,378+560
Oct 16, 2026818+267
Oct 15, 2026551-1
Oct 14, 2026552-6
Oct 12, 2026558-25
Oct 09, 2026583No prior observation