OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

M $26.50 Call

M261030C00026500

Latest saved OI374Oct 23, 2026
Last change+14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
M $26.50 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. 3741870 2026-10-02: 8 OI2026-10-05: 8 OI2026-10-06: 8 OI2026-10-07: 38 OI2026-10-08: 38 OI2026-10-09: 38 OI2026-10-13: 43 OI2026-10-14: 43 OI2026-10-15: 43 OI2026-10-16: 47 OI2026-10-21: 360 OI2026-10-23: 374 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, 2026Viewing374+14
Oct 21, 2026360+313
Oct 16, 202647+4
Oct 15, 2026430
Oct 14, 2026430
Oct 13, 202643+5
Oct 09, 2026380
Oct 08, 2026380
Oct 07, 202638+30
Oct 06, 202680
Oct 05, 202680
Oct 02, 20268No prior observation