OITracker Cboe delayed data

Contract OI history

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Apr 16, 2027 EXPIRATION

AB $40.00 Call

AB270416C00040000

Latest saved OI581Oct 23, 2026
Last change+11vs 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. 5942970 2026-10-02: 531 OI2026-10-05: 551 OI2026-10-06: 565 OI2026-10-07: 565 OI2026-10-08: 582 OI2026-10-09: 582 OI2026-10-13: 594 OI2026-10-15: 575 OI2026-10-16: 576 OI2026-10-20: 570 OI2026-10-23: 581 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, 2026Viewing581+11
Oct 20, 2026570-6
Oct 16, 2026576+1
Oct 15, 2026575-19
Oct 13, 2026594+12
Oct 09, 20265820
Oct 08, 2026582+17
Oct 07, 20265650
Oct 06, 2026565+14
Oct 05, 2026551+20
Oct 02, 2026531No prior observation