OITracker Cboe delayed data

Contract OI history

Back to ZTS

Nov 20, 2026 EXPIRATION

ZTS $85.00 Call

ZTS261120C00085000

Latest saved OI2,360Oct 23, 2026
Last change+184vs 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. 2,3601,1800 2026-10-02: 1,090 OI2026-10-05: 1,093 OI2026-10-06: 1,121 OI2026-10-07: 1,150 OI2026-10-08: 1,150 OI2026-10-09: 1,190 OI2026-10-12: 1,225 OI2026-10-14: 1,296 OI2026-10-15: 1,350 OI2026-10-16: 1,624 OI2026-10-21: 2,176 OI2026-10-23: 2,360 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, 2026Viewing2,360+184
Oct 21, 20262,176+552
Oct 16, 20261,624+274
Oct 15, 20261,350+54
Oct 14, 20261,296+71
Oct 12, 20261,225+35
Oct 09, 20261,190+40
Oct 08, 20261,1500
Oct 07, 20261,150+29
Oct 06, 20261,121+28
Oct 05, 20261,093+3
Oct 02, 20261,090No prior observation