OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

BA $290.00 Put

BA280121P00290000

Latest saved OI43Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BA $290.00 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. 49240 2026-10-02: 49 OI2026-10-05: 49 OI2026-10-06: 49 OI2026-10-07: 49 OI2026-10-08: 49 OI2026-10-09: 49 OI2026-10-13: 43 OI2026-10-14: 43 OI2026-10-15: 43 OI2026-10-16: 43 OI2026-10-21: 43 OI2026-10-23: 43 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, 2026Viewing430
Oct 21, 2026430
Oct 16, 2026430
Oct 15, 2026430
Oct 14, 2026430
Oct 13, 202643-6
Oct 09, 2026490
Oct 08, 2026490
Oct 07, 2026490
Oct 06, 2026490
Oct 05, 2026490
Oct 02, 202649No prior observation