OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

B $44.00 Put

B261120P00044000

Latest saved OI99Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $44.00 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. 99490 2026-10-02: 66 OI2026-10-05: 66 OI2026-10-06: 66 OI2026-10-07: 65 OI2026-10-08: 67 OI2026-10-09: 77 OI2026-10-13: 92 OI2026-10-14: 96 OI2026-10-15: 96 OI2026-10-16: 95 OI2026-10-21: 98 OI2026-10-23: 99 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, 2026Viewing99+1
Oct 21, 202698+3
Oct 16, 202695-1
Oct 15, 2026960
Oct 14, 202696+4
Oct 13, 202692+15
Oct 09, 202677+10
Oct 08, 202667+2
Oct 07, 202665-1
Oct 06, 2026660
Oct 05, 2026660
Oct 02, 202666No prior observation