OITracker Cboe delayed data

Contract OI history

Back to BAX

Jan 15, 2027 EXPIRATION

BAX $20.00 Put

BAX270115P00020000

Latest saved OI681Oct 23, 2026
Last change-4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAX $20.00 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. 6853420 2026-10-02: 685 OI2026-10-05: 685 OI2026-10-06: 685 OI2026-10-07: 685 OI2026-10-08: 685 OI2026-10-09: 685 OI2026-10-13: 684 OI2026-10-14: 684 OI2026-10-15: 684 OI2026-10-16: 684 OI2026-10-21: 685 OI2026-10-23: 681 OI Oct 02, 2026Oct 23, 2026

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

BAX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing681-4
Oct 21, 2026685+1
Oct 16, 20266840
Oct 15, 20266840
Oct 14, 20266840
Oct 13, 2026684-1
Oct 09, 20266850
Oct 08, 20266850
Oct 07, 20266850
Oct 06, 20266850
Oct 05, 20266850
Oct 02, 2026685No prior observation