OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

B $43.00 Call

B261218C00043000

Latest saved OI691Oct 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
B $43.00 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. 6913450 2026-10-02: 609 OI2026-10-05: 611 OI2026-10-06: 611 OI2026-10-07: 602 OI2026-10-08: 589 OI2026-10-09: 587 OI2026-10-13: 587 OI2026-10-14: 655 OI2026-10-15: 658 OI2026-10-16: 658 OI2026-10-21: 685 OI2026-10-23: 691 OI Oct 02, 2026Oct 23, 2026

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

B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing691+6
Oct 21, 2026685+27
Oct 16, 20266580
Oct 15, 2026658+3
Oct 14, 2026655+68
Oct 13, 20265870
Oct 09, 2026587-2
Oct 08, 2026589-13
Oct 07, 2026602-9
Oct 06, 20266110
Oct 05, 2026611+2
Oct 02, 2026609No prior observation