OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

M $19.00 Put

M261218P00019000

Latest saved OI193Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
M $19.00 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. 193960 2026-10-02: 160 OI2026-10-05: 160 OI2026-10-06: 161 OI2026-10-07: 172 OI2026-10-08: 172 OI2026-10-09: 174 OI2026-10-13: 187 OI2026-10-14: 187 OI2026-10-15: 187 OI2026-10-16: 188 OI2026-10-21: 183 OI2026-10-23: 193 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

M contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing193+10
Oct 21, 2026183-5
Oct 16, 2026188+1
Oct 15, 20261870
Oct 14, 20261870
Oct 13, 2026187+13
Oct 09, 2026174+2
Oct 08, 20261720
Oct 07, 2026172+11
Oct 06, 2026161+1
Oct 05, 20261600
Oct 02, 2026160No prior observation