OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

AB $40.00 Call

AB270115C00040000

Latest saved OI1,728Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
AB $40.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,7298640 2026-10-02: 1,482 OI2026-10-05: 1,482 OI2026-10-06: 1,498 OI2026-10-07: 1,498 OI2026-10-08: 1,498 OI2026-10-09: 1,523 OI2026-10-13: 1,529 OI2026-10-15: 1,515 OI2026-10-16: 1,541 OI2026-10-20: 1,729 OI2026-10-23: 1,728 OI Oct 02, 2026Oct 23, 2026

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

AB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,728-1
Oct 20, 20261,729+188
Oct 16, 20261,541+26
Oct 15, 20261,515-14
Oct 13, 20261,529+6
Oct 09, 20261,523+25
Oct 08, 20261,4980
Oct 07, 20261,4980
Oct 06, 20261,498+16
Oct 05, 20261,4820
Oct 02, 20261,482No prior observation