OITracker Cboe delayed data

Contract OI history

Back to BA

Dec 18, 2026 EXPIRATION

BA $155.00 Put

BA261218P00155000

Latest saved OI2,003Oct 23, 2026
Last change+14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BA $155.00 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. 2,0031,0010 2026-10-02: 1,907 OI2026-10-05: 1,906 OI2026-10-06: 1,917 OI2026-10-07: 1,927 OI2026-10-08: 1,927 OI2026-10-09: 1,938 OI2026-10-13: 1,952 OI2026-10-14: 1,952 OI2026-10-15: 1,952 OI2026-10-16: 1,953 OI2026-10-21: 1,989 OI2026-10-23: 2,003 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, 2026Viewing2,003+14
Oct 21, 20261,989+36
Oct 16, 20261,953+1
Oct 15, 20261,9520
Oct 14, 20261,9520
Oct 13, 20261,952+14
Oct 09, 20261,938+11
Oct 08, 20261,9270
Oct 07, 20261,927+10
Oct 06, 20261,917+11
Oct 05, 20261,906-1
Oct 02, 20261,907No prior observation