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Contract OI history

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Dec 18, 2026 EXPIRATION

ZTS $75.00 Call

ZTS261218C00075000

Latest saved OI1,538Oct 23, 2026
Last change+11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTS $75.00 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. 1,5577780 2026-10-02: 1,386 OI2026-10-05: 1,439 OI2026-10-06: 1,448 OI2026-10-07: 1,496 OI2026-10-08: 1,496 OI2026-10-09: 1,499 OI2026-10-12: 1,520 OI2026-10-14: 1,553 OI2026-10-15: 1,557 OI2026-10-16: 1,533 OI2026-10-21: 1,527 OI2026-10-23: 1,538 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, 2026Viewing1,538+11
Oct 21, 20261,527-6
Oct 16, 20261,533-24
Oct 15, 20261,557+4
Oct 14, 20261,553+33
Oct 12, 20261,520+21
Oct 09, 20261,499+3
Oct 08, 20261,4960
Oct 07, 20261,496+48
Oct 06, 20261,448+9
Oct 05, 20261,439+53
Oct 02, 20261,386No prior observation