OITracker Cboe delayed data

Contract OI history

Back to ZTS

Nov 20, 2026 EXPIRATION

ZTS $80.00 Put

ZTS261120P00080000

Latest saved OI371Oct 23, 2026
Last change+51vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTS $80.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3711850 2026-10-02: 110 OI2026-10-05: 120 OI2026-10-06: 122 OI2026-10-07: 126 OI2026-10-08: 126 OI2026-10-09: 127 OI2026-10-12: 127 OI2026-10-14: 127 OI2026-10-15: 167 OI2026-10-16: 172 OI2026-10-21: 320 OI2026-10-23: 371 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, 2026Viewing371+51
Oct 21, 2026320+148
Oct 16, 2026172+5
Oct 15, 2026167+40
Oct 14, 20261270
Oct 12, 20261270
Oct 09, 2026127+1
Oct 08, 20261260
Oct 07, 2026126+4
Oct 06, 2026122+2
Oct 05, 2026120+10
Oct 02, 2026110No prior observation