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Contract OI history

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Jun 17, 2027 EXPIRATION

ZTS $40.00 Put

ZTS270617P00040000

Latest saved OI410Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTS $40.00 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. 4102050 2026-10-02: 14 OI2026-10-05: 14 OI2026-10-06: 14 OI2026-10-07: 14 OI2026-10-08: 14 OI2026-10-09: 14 OI2026-10-12: 15 OI2026-10-14: 314 OI2026-10-15: 314 OI2026-10-16: 313 OI2026-10-21: 410 OI2026-10-23: 410 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, 2026Viewing4100
Oct 21, 2026410+97
Oct 16, 2026313-1
Oct 15, 20263140
Oct 14, 2026314+299
Oct 12, 202615+1
Oct 09, 2026140
Oct 08, 2026140
Oct 07, 2026140
Oct 06, 2026140
Oct 05, 2026140
Oct 02, 202614No prior observation