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Contract OI history

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Jan 15, 2027 EXPIRATION

ZTS $85.00 Call

ZTS270115C00085000

Latest saved OI1,992Oct 23, 2026
Last change+172vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTS $85.00 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. 1,9929960 2026-10-02: 989 OI2026-10-05: 989 OI2026-10-06: 992 OI2026-10-07: 985 OI2026-10-08: 985 OI2026-10-09: 985 OI2026-10-12: 987 OI2026-10-14: 986 OI2026-10-15: 986 OI2026-10-16: 992 OI2026-10-21: 1,820 OI2026-10-23: 1,992 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, 2026Viewing1,992+172
Oct 21, 20261,820+828
Oct 16, 2026992+6
Oct 15, 20269860
Oct 14, 2026986-1
Oct 12, 2026987+2
Oct 09, 20269850
Oct 08, 20269850
Oct 07, 2026985-7
Oct 06, 2026992+3
Oct 05, 20269890
Oct 02, 2026989No prior observation