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Contract OI history

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Mar 19, 2027 EXPIRATION

ZS $180.00 Put

ZS270319P00180000

Latest saved OI177Oct 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 $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. 177880 2026-10-09: 74 OI2026-10-12: 74 OI2026-10-14: 174 OI2026-10-15: 174 OI2026-10-16: 174 OI2026-10-21: 176 OI2026-10-23: 177 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, 2026177+1
Oct 21, 2026Viewing176+2
Oct 16, 20261740
Oct 15, 20261740
Oct 14, 2026174+100
Oct 12, 2026740
Oct 09, 202674No prior observation