OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

M $22.50 Put

M261030P00022500

Latest saved OI990Oct 23, 2026
Last change+31vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
M $22.50 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. 9904950 2026-10-02: 120 OI2026-10-05: 121 OI2026-10-06: 149 OI2026-10-07: 151 OI2026-10-08: 151 OI2026-10-09: 173 OI2026-10-13: 839 OI2026-10-14: 839 OI2026-10-15: 923 OI2026-10-16: 924 OI2026-10-21: 959 OI2026-10-23: 990 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, 2026Viewing990+31
Oct 21, 2026959+35
Oct 16, 2026924+1
Oct 15, 2026923+84
Oct 14, 20268390
Oct 13, 2026839+666
Oct 09, 2026173+22
Oct 08, 20261510
Oct 07, 2026151+2
Oct 06, 2026149+28
Oct 05, 2026121+1
Oct 02, 2026120No prior observation