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Contract OI history

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Jan 21, 2028 EXPIRATION

BA $215.00 Put

BA280121P00215000

Latest saved OI879Oct 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 $215.00 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. 8914450 2026-10-02: 859 OI2026-10-05: 874 OI2026-10-06: 880 OI2026-10-07: 880 OI2026-10-08: 880 OI2026-10-09: 880 OI2026-10-13: 881 OI2026-10-14: 881 OI2026-10-15: 881 OI2026-10-16: 891 OI2026-10-21: 879 OI2026-10-23: 879 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, 2026Viewing8790
Oct 21, 2026879-12
Oct 16, 2026891+10
Oct 15, 20268810
Oct 14, 20268810
Oct 13, 2026881+1
Oct 09, 20268800
Oct 08, 20268800
Oct 07, 20268800
Oct 06, 2026880+6
Oct 05, 2026874+15
Oct 02, 2026859No prior observation