OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

MO $40.00 Put

MO270115P00040000

Latest saved OI537Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MO $40.00 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. 5432710 2026-10-02: 543 OI2026-10-05: 536 OI2026-10-06: 536 OI2026-10-07: 536 OI2026-10-08: 536 OI2026-10-09: 536 OI2026-10-13: 537 OI2026-10-14: 537 OI2026-10-15: 537 OI2026-10-16: 537 OI2026-10-21: 537 OI2026-10-23: 537 OI Oct 02, 2026Oct 23, 2026

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

MO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5370
Oct 21, 20265370
Oct 16, 20265370
Oct 15, 20265370
Oct 14, 20265370
Oct 13, 2026537+1
Oct 09, 20265360
Oct 08, 20265360
Oct 07, 20265360
Oct 06, 20265360
Oct 05, 2026536-7
Oct 02, 2026543No prior observation