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Contract OI history

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Nov 20, 2026 EXPIRATION

ZTS $75.00 Put

ZTS261120P00075000

Latest saved OI790Oct 23, 2026
Last change+61vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTS $75.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7903950 2026-10-02: 154 OI2026-10-05: 167 OI2026-10-06: 185 OI2026-10-07: 216 OI2026-10-08: 216 OI2026-10-09: 219 OI2026-10-12: 239 OI2026-10-14: 347 OI2026-10-15: 380 OI2026-10-16: 495 OI2026-10-21: 729 OI2026-10-23: 790 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ZTS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing790+61
Oct 21, 2026729+234
Oct 16, 2026495+115
Oct 15, 2026380+33
Oct 14, 2026347+108
Oct 12, 2026239+20
Oct 09, 2026219+3
Oct 08, 20262160
Oct 07, 2026216+31
Oct 06, 2026185+18
Oct 05, 2026167+13
Oct 02, 2026154No prior observation