OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BA $225.00 Put

BA261120P00225000

Latest saved OI1,395Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BA $225.00 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. 1,5807900 2026-10-02: 1,580 OI2026-10-05: 1,320 OI2026-10-06: 1,320 OI2026-10-07: 1,320 OI2026-10-08: 1,320 OI2026-10-09: 1,320 OI2026-10-13: 1,400 OI2026-10-14: 1,400 OI2026-10-15: 1,403 OI2026-10-16: 1,403 OI2026-10-21: 1,398 OI2026-10-23: 1,395 OI Oct 02, 2026Oct 23, 2026

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

BA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,395-3
Oct 21, 20261,398-5
Oct 16, 20261,4030
Oct 15, 20261,403+3
Oct 14, 20261,4000
Oct 13, 20261,400+80
Oct 09, 20261,3200
Oct 08, 20261,3200
Oct 07, 20261,3200
Oct 06, 20261,3200
Oct 05, 20261,320-260
Oct 02, 20261,580No prior observation