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Contract OI history

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Jan 21, 2028 EXPIRATION

ZTS $125.00 Call

ZTS280121C00125000

Latest saved OI227Oct 23, 2026
Last change-4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTS $125.00 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. 2421210 2026-10-02: 232 OI2026-10-05: 232 OI2026-10-06: 242 OI2026-10-07: 241 OI2026-10-08: 241 OI2026-10-09: 241 OI2026-10-12: 241 OI2026-10-14: 240 OI2026-10-15: 240 OI2026-10-16: 240 OI2026-10-21: 231 OI2026-10-23: 227 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, 2026Viewing227-4
Oct 21, 2026231-9
Oct 16, 20262400
Oct 15, 20262400
Oct 14, 2026240-1
Oct 12, 20262410
Oct 09, 20262410
Oct 08, 20262410
Oct 07, 2026241-1
Oct 06, 2026242+10
Oct 05, 20262320
Oct 02, 2026232No prior observation