OITracker Cboe delayed data

Contract OI history

Back to BA

Dec 18, 2026 EXPIRATION

BA $165.00 Put

BA261218P00165000

Latest saved OI2,615Oct 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
BA $165.00 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. 2,6151,3070 2026-10-02: 2,550 OI2026-10-05: 2,552 OI2026-10-06: 2,570 OI2026-10-07: 2,571 OI2026-10-08: 2,571 OI2026-10-09: 2,570 OI2026-10-13: 2,591 OI2026-10-14: 2,591 OI2026-10-15: 2,604 OI2026-10-16: 2,612 OI2026-10-21: 2,614 OI2026-10-23: 2,615 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, 2026Viewing2,615+1
Oct 21, 20262,614+2
Oct 16, 20262,612+8
Oct 15, 20262,604+13
Oct 14, 20262,5910
Oct 13, 20262,591+21
Oct 09, 20262,570-1
Oct 08, 20262,5710
Oct 07, 20262,571+1
Oct 06, 20262,570+18
Oct 05, 20262,552+2
Oct 02, 20262,550No prior observation