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Contract OI history

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Jan 21, 2028 EXPIRATION

ZTS $150.00 Call

ZTS280121C00150000

Latest saved OI875Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTS $150.00 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. 8764380 2026-10-02: 819 OI2026-10-05: 819 OI2026-10-06: 821 OI2026-10-07: 866 OI2026-10-08: 866 OI2026-10-09: 866 OI2026-10-12: 866 OI2026-10-14: 876 OI2026-10-15: 876 OI2026-10-16: 875 OI2026-10-21: 875 OI2026-10-23: 875 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, 2026Viewing8750
Oct 21, 20268750
Oct 16, 2026875-1
Oct 15, 20268760
Oct 14, 2026876+10
Oct 12, 20268660
Oct 09, 20268660
Oct 08, 20268660
Oct 07, 2026866+45
Oct 06, 2026821+2
Oct 05, 20268190
Oct 02, 2026819No prior observation