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Contract OI history

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Jan 21, 2028 EXPIRATION

ZTS $70.00 Put

ZTS280121P00070000

Latest saved OI536Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTS $70.00 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. 5912950 2026-10-02: 587 OI2026-10-05: 591 OI2026-10-06: 591 OI2026-10-07: 591 OI2026-10-08: 591 OI2026-10-09: 591 OI2026-10-12: 585 OI2026-10-14: 568 OI2026-10-15: 562 OI2026-10-16: 560 OI2026-10-21: 538 OI2026-10-23: 536 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, 2026Viewing536-2
Oct 21, 2026538-22
Oct 16, 2026560-2
Oct 15, 2026562-6
Oct 14, 2026568-17
Oct 12, 2026585-6
Oct 09, 20265910
Oct 08, 20265910
Oct 07, 20265910
Oct 06, 20265910
Oct 05, 2026591+4
Oct 02, 2026587No prior observation