OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

M $23.50 Put

M261030P00023500

Latest saved OI360Oct 23, 2026
Last change+6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
M $23.50 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. 3601800 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 47 OI2026-10-08: 47 OI2026-10-09: 69 OI2026-10-13: 73 OI2026-10-14: 73 OI2026-10-15: 73 OI2026-10-16: 75 OI2026-10-21: 354 OI2026-10-23: 360 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, 2026Viewing360+6
Oct 21, 2026354+279
Oct 16, 202675+2
Oct 15, 2026730
Oct 14, 2026730
Oct 13, 202673+4
Oct 09, 202669+22
Oct 08, 2026470
Oct 07, 202647+47
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation