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Contract OI history

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Dec 18, 2026 EXPIRATION

ZTS $80.00 Put

ZTS261218P00080000

Latest saved OI368Oct 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 $80.00 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. 3701850 2026-10-02: 367 OI2026-10-05: 367 OI2026-10-06: 367 OI2026-10-07: 369 OI2026-10-08: 369 OI2026-10-09: 369 OI2026-10-12: 369 OI2026-10-14: 368 OI2026-10-15: 369 OI2026-10-16: 369 OI2026-10-21: 370 OI2026-10-23: 368 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, 2026Viewing368-2
Oct 21, 2026370+1
Oct 16, 20263690
Oct 15, 2026369+1
Oct 14, 2026368-1
Oct 12, 20263690
Oct 09, 20263690
Oct 08, 20263690
Oct 07, 2026369+2
Oct 06, 20263670
Oct 05, 20263670
Oct 02, 2026367No prior observation