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Contract OI history

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Apr 16, 2027 EXPIRATION

ZTS $80.00 Call

ZTS270416C00080000

Latest saved OI250Oct 23, 2026
Last change+12vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTS $80.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2501250 2026-10-02: 228 OI2026-10-05: 228 OI2026-10-06: 228 OI2026-10-07: 228 OI2026-10-08: 228 OI2026-10-09: 228 OI2026-10-12: 228 OI2026-10-14: 228 OI2026-10-15: 228 OI2026-10-16: 237 OI2026-10-21: 238 OI2026-10-23: 250 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, 2026Viewing250+12
Oct 21, 2026238+1
Oct 16, 2026237+9
Oct 15, 20262280
Oct 14, 20262280
Oct 12, 20262280
Oct 09, 20262280
Oct 08, 20262280
Oct 07, 20262280
Oct 06, 20262280
Oct 05, 20262280
Oct 02, 2026228No prior observation